diff --git a/src/main/java/cn/hyperchain/sdk/request/BlockRequest.java b/src/main/java/cn/hyperchain/sdk/request/BlockRequest.java
index e0570618..23a99faa 100644
--- a/src/main/java/cn/hyperchain/sdk/request/BlockRequest.java
+++ b/src/main/java/cn/hyperchain/sdk/request/BlockRequest.java
@@ -1,17 +1,9 @@
 package cn.hyperchain.sdk.request;
 
-import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.BlockResponse;
 
-public class BlockRequest<T extends BlockResponse> extends Request<T> {
-
-    public BlockRequest(String method, ProviderManager providerManager, Class<T> clazz, int... nodeIds) {
+public class BlockRequest extends Request {
+    public BlockRequest(String method, ProviderManager providerManager, Class clazz, int... nodeIds) {
         super(method, providerManager, clazz, nodeIds);
     }
-
-    @Override
-    public T send() throws RequestException {
-        return super.send();
-    }
 }
diff --git a/src/main/java/cn/hyperchain/sdk/request/MQRequest.java b/src/main/java/cn/hyperchain/sdk/request/MQRequest.java
index bb93b111..306eef9e 100644
--- a/src/main/java/cn/hyperchain/sdk/request/MQRequest.java
+++ b/src/main/java/cn/hyperchain/sdk/request/MQRequest.java
@@ -1,19 +1,9 @@
 package cn.hyperchain.sdk.request;
 
-import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.MQResponse;
-import cn.hyperchain.sdk.response.Response;
 
-public class MQRequest<T extends MQResponse> extends Request<T> {
+public class MQRequest extends Request {
     public MQRequest(String method, ProviderManager providerManager, Class clazz, int... nodeIds) {
         super(method, providerManager, clazz, nodeIds);
     }
-
-    @Override
-    public T send() throws RequestException {
-        T response = super.send();
-
-        return response;
-    }
 }
diff --git a/src/main/java/cn/hyperchain/sdk/request/NodeRequest.java b/src/main/java/cn/hyperchain/sdk/request/NodeRequest.java
index ef4f25e2..f466b7f9 100644
--- a/src/main/java/cn/hyperchain/sdk/request/NodeRequest.java
+++ b/src/main/java/cn/hyperchain/sdk/request/NodeRequest.java
@@ -1,9 +1,8 @@
 package cn.hyperchain.sdk.request;
 
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.NodeResponse;
 
-public class NodeRequest<T extends NodeResponse> extends Request {
+public class NodeRequest extends Request {
 
     public NodeRequest(String method, ProviderManager providerManager, Class clazz, int... nodeIds) {
         super(method, providerManager, clazz, nodeIds);
diff --git a/src/main/java/cn/hyperchain/sdk/request/RadarRequest.java b/src/main/java/cn/hyperchain/sdk/request/RadarRequest.java
index 9d80a024..8f789b1d 100644
--- a/src/main/java/cn/hyperchain/sdk/request/RadarRequest.java
+++ b/src/main/java/cn/hyperchain/sdk/request/RadarRequest.java
@@ -1,17 +1,10 @@
 package cn.hyperchain.sdk.request;
 
-import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.Response;
 
-public class RadarRequest<T extends Response> extends Request {
+public class RadarRequest extends Request {
 
     public RadarRequest(String method, ProviderManager providerManager, Class clazz, int... nodeIds) {
         super(method, providerManager, clazz, nodeIds);
     }
-
-    @Override
-    public Response send() throws RequestException {
-        return super.send();
-    }
 }
diff --git a/src/main/java/cn/hyperchain/sdk/request/TxRequest.java b/src/main/java/cn/hyperchain/sdk/request/TxRequest.java
index ff7d7e27..1a2aef1b 100644
--- a/src/main/java/cn/hyperchain/sdk/request/TxRequest.java
+++ b/src/main/java/cn/hyperchain/sdk/request/TxRequest.java
@@ -2,7 +2,7 @@
 
 import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.TxResponse;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 
 public class TxRequest<T extends TxResponse> extends Request<T> {
     public TxRequest(String method, ProviderManager providerManager, Class<T> clazz, int... nodeIds) {
diff --git a/src/main/java/cn/hyperchain/sdk/response/block/BlockAvgTimeResponse.java b/src/main/java/cn/hyperchain/sdk/response/block/BlockAvgTimeResponse.java
new file mode 100644
index 00000000..6c9a77f6
--- /dev/null
+++ b/src/main/java/cn/hyperchain/sdk/response/block/BlockAvgTimeResponse.java
@@ -0,0 +1,30 @@
+package cn.hyperchain.sdk.response.block;
+
+import cn.hyperchain.sdk.response.Response;
+import com.google.gson.annotations.Expose;
+
+/**
+ * this class represents block average generate time response.
+ *
+ * @author dong
+ * @date 07/05/2019
+ */
+public class BlockAvgTimeResponse extends Response {
+    @Expose
+    private String result;
+
+    public String getResult() {
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "BlockAvgTimeResponse{" +
+                "result=" + result +
+                ", jsonrpc='" + jsonrpc + '\'' +
+                ", id='" + id + '\'' +
+                ", code=" + code +
+                ", message='" + message + '\'' +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/hyperchain/sdk/response/block/BlockCountResponse.java b/src/main/java/cn/hyperchain/sdk/response/block/BlockCountResponse.java
new file mode 100644
index 00000000..43c94085
--- /dev/null
+++ b/src/main/java/cn/hyperchain/sdk/response/block/BlockCountResponse.java
@@ -0,0 +1,48 @@
+package cn.hyperchain.sdk.response.block;
+
+import cn.hyperchain.sdk.response.Response;
+import com.google.gson.annotations.Expose;
+
+/**
+ * this class represents block count response.
+ *
+ * @author dong
+ * @date 07/05/2019
+ */
+public class BlockCountResponse extends Response {
+    private class BlockCount {
+        @Expose
+        private String sumOfBlocks;
+        @Expose
+        private String startBlock;
+        @Expose
+        private String endBlock;
+
+        @Override
+        public String toString() {
+            return "BlockCount{" +
+                    "sumOfBlocks='" + sumOfBlocks + '\'' +
+                    ", startBlock='" + startBlock + '\'' +
+                    ", endBlock='" + endBlock + '\'' +
+                    '}';
+        }
+    }
+
+    @Expose
+    private BlockCount result;
+
+    public BlockCount getResult() {
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "BlockCountResponse{" +
+                "result=" + result +
+                ", jsonrpc='" + jsonrpc + '\'' +
+                ", id='" + id + '\'' +
+                ", code=" + code +
+                ", message='" + message + '\'' +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/hyperchain/sdk/response/block/BlockNumberResponse.java b/src/main/java/cn/hyperchain/sdk/response/block/BlockNumberResponse.java
new file mode 100644
index 00000000..debc2241
--- /dev/null
+++ b/src/main/java/cn/hyperchain/sdk/response/block/BlockNumberResponse.java
@@ -0,0 +1,30 @@
+package cn.hyperchain.sdk.response.block;
+
+import cn.hyperchain.sdk.response.Response;
+import com.google.gson.annotations.Expose;
+
+/**
+ * this class represents block number response.
+ *
+ * @author dong
+ * @date 07/05/2019
+ */
+public class BlockNumberResponse extends Response {
+    @Expose
+    private String result;
+
+    public String getResult() {
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "BlockNumberResponse{" +
+                "result=" + result +
+                ", jsonrpc='" + jsonrpc + '\'' +
+                ", id='" + id + '\'' +
+                ", code=" + code +
+                ", message='" + message + '\'' +
+                '}';
+    }
+}
diff --git a/src/main/java/cn/hyperchain/sdk/response/BlockResponse.java b/src/main/java/cn/hyperchain/sdk/response/block/BlockResponse.java
similarity index 76%
rename from src/main/java/cn/hyperchain/sdk/response/BlockResponse.java
rename to src/main/java/cn/hyperchain/sdk/response/block/BlockResponse.java
index c5d94b44..a99a1d17 100644
--- a/src/main/java/cn/hyperchain/sdk/response/BlockResponse.java
+++ b/src/main/java/cn/hyperchain/sdk/response/block/BlockResponse.java
@@ -1,5 +1,7 @@
-package cn.hyperchain.sdk.response;
+package cn.hyperchain.sdk.response.block;
 
+import cn.hyperchain.sdk.response.Response;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 import com.google.gson.Gson;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
@@ -69,30 +71,12 @@ public String toString() {
         }
     }
 
-    private class BlockCount {
-        @Expose
-        private String sumOfBlocks;
-        @Expose
-        private String startBlock;
-        @Expose
-        private String endBlock;
-
-        @Override
-        public String toString() {
-            return "BlockCount{" +
-                    "sumOfBlocks='" + sumOfBlocks + '\'' +
-                    ", startBlock='" + startBlock + '\'' +
-                    ", endBlock='" + endBlock + '\'' +
-                    '}';
-        }
-    }
-
     /**
      * get block list.
      *
      * @return block list
      */
-    public List<Block> getBlocks() {
+    public List<Block> getResult() {
         ArrayList<Block> blocks = new ArrayList<>();
         if (result.isJsonArray()) {
             JsonArray jsonArray = result.getAsJsonArray();
@@ -106,18 +90,6 @@ public List<Block> getBlocks() {
         return blocks;
     }
 
-    public String getAvgGenerateTime() {
-        return result.getAsString();
-    }
-
-    public String getBlockNumber() {
-        return result.getAsString();
-    }
-
-    public BlockCount getBlocksCount() {
-        return gson.fromJson(result, BlockCount.class);
-    }
-
     @Override
     public String toString() {
         return "BlockResponse{" +
diff --git a/src/main/java/cn/hyperchain/sdk/response/MQResponse.java b/src/main/java/cn/hyperchain/sdk/response/mq/MQResponse.java
similarity index 89%
rename from src/main/java/cn/hyperchain/sdk/response/MQResponse.java
rename to src/main/java/cn/hyperchain/sdk/response/mq/MQResponse.java
index 49e29c0e..3f8a4997 100644
--- a/src/main/java/cn/hyperchain/sdk/response/MQResponse.java
+++ b/src/main/java/cn/hyperchain/sdk/response/mq/MQResponse.java
@@ -1,5 +1,6 @@
-package cn.hyperchain.sdk.response;
+package cn.hyperchain.sdk.response.mq;
 
+import cn.hyperchain.sdk.response.Response;
 import com.google.gson.Gson;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
@@ -14,6 +15,7 @@ public class MQResponse extends Response {
 
     /**
      * return list of queue names.
+     *
      * @return list of queue names
      */
     public List<String> getQueueNames() {
@@ -21,7 +23,7 @@ public List<String> getQueueNames() {
         Gson gson = new Gson();
         if (result.isJsonArray()) {
             JsonArray jsonArray = result.getAsJsonArray();
-            for (JsonElement element: jsonArray) {
+            for (JsonElement element : jsonArray) {
                 String name = gson.fromJson(element, String.class);
                 queue.add(name);
             }
diff --git a/src/main/java/cn/hyperchain/sdk/response/NodeResponse.java b/src/main/java/cn/hyperchain/sdk/response/node/NodeResponse.java
similarity index 88%
rename from src/main/java/cn/hyperchain/sdk/response/NodeResponse.java
rename to src/main/java/cn/hyperchain/sdk/response/node/NodeResponse.java
index 7c528ef2..e929fa2a 100644
--- a/src/main/java/cn/hyperchain/sdk/response/NodeResponse.java
+++ b/src/main/java/cn/hyperchain/sdk/response/node/NodeResponse.java
@@ -1,5 +1,6 @@
-package cn.hyperchain.sdk.response;
+package cn.hyperchain.sdk.response.node;
 
+import cn.hyperchain.sdk.response.Response;
 import com.google.gson.Gson;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
@@ -56,7 +57,7 @@ public String toString() {
      * get nodes info.
      * @return node info array
      */
-    public List<Node> getNodes() {
+    public List<Node> getResult() {
         List<Node> nodes = new ArrayList<>();
         Gson gson = new Gson();
         if (result.isJsonArray()) {
@@ -64,6 +65,9 @@ public List<Node> getNodes() {
             for (JsonElement jsonElement : jsonArray) {
                 nodes.add(gson.fromJson(jsonElement, Node.class));
             }
+        } else {
+            Node node = gson.fromJson(result, Node.class);
+            nodes.add(node);
         }
         return nodes;
     }
diff --git a/src/main/java/cn/hyperchain/sdk/response/RadarResponse.java b/src/main/java/cn/hyperchain/sdk/response/radar/RadarResponse.java
similarity index 77%
rename from src/main/java/cn/hyperchain/sdk/response/RadarResponse.java
rename to src/main/java/cn/hyperchain/sdk/response/radar/RadarResponse.java
index 0df83c5c..b1350fd5 100644
--- a/src/main/java/cn/hyperchain/sdk/response/RadarResponse.java
+++ b/src/main/java/cn/hyperchain/sdk/response/radar/RadarResponse.java
@@ -1,4 +1,6 @@
-package cn.hyperchain.sdk.response;
+package cn.hyperchain.sdk.response.radar;
+
+import cn.hyperchain.sdk.response.Response;
 
 public class RadarResponse extends Response {
 
diff --git a/src/main/java/cn/hyperchain/sdk/response/TxResponse.java b/src/main/java/cn/hyperchain/sdk/response/tx/TxResponse.java
similarity index 97%
rename from src/main/java/cn/hyperchain/sdk/response/TxResponse.java
rename to src/main/java/cn/hyperchain/sdk/response/tx/TxResponse.java
index 1415636b..32329de4 100644
--- a/src/main/java/cn/hyperchain/sdk/response/TxResponse.java
+++ b/src/main/java/cn/hyperchain/sdk/response/tx/TxResponse.java
@@ -1,5 +1,6 @@
-package cn.hyperchain.sdk.response;
+package cn.hyperchain.sdk.response.tx;
 
+import cn.hyperchain.sdk.response.Response;
 import com.google.gson.Gson;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
diff --git a/src/main/java/cn/hyperchain/sdk/service/BlockService.java b/src/main/java/cn/hyperchain/sdk/service/BlockService.java
index 944940bd..7b5b816b 100644
--- a/src/main/java/cn/hyperchain/sdk/service/BlockService.java
+++ b/src/main/java/cn/hyperchain/sdk/service/BlockService.java
@@ -1,7 +1,10 @@
 package cn.hyperchain.sdk.service;
 
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.BlockResponse;
+import cn.hyperchain.sdk.response.block.BlockAvgTimeResponse;
+import cn.hyperchain.sdk.response.block.BlockCountResponse;
+import cn.hyperchain.sdk.response.block.BlockNumberResponse;
+import cn.hyperchain.sdk.response.block.BlockResponse;
 
 import java.math.BigInteger;
 import java.util.ArrayList;
@@ -9,54 +12,167 @@
 /**
  * block service interface.
  *
- * @author dong
- * @date 07/04/2019
+ * @author Jianhui Dong
+ * @date 2019-07-05
  */
 public interface BlockService {
 
+    /**
+     * get latest block.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
     Request<BlockResponse> getLatestBlock(int... nodeIds);
 
+    /**
+     * @see BlockService#getBlocks(String, String, boolean, int...)
+     */
     Request<BlockResponse> getBlocks(BigInteger from, BigInteger to, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlocks(String, String, boolean, int...)
+     */
     Request<BlockResponse> getBlocks(String from, String to, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlocks(String, String, boolean, int...)
+     */
     Request<BlockResponse> getBlocks(BigInteger from, BigInteger to, boolean isPlain, int... nodeIds);
 
+    /**
+     * query the block of the specified block interval.
+     *
+     * @param from    start block number
+     * @param to      end block number
+     * @param isPlain default false, indicating that the returned block includes transaction information within the block.
+     *                If specified, the returned block does not include transactions within the block
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
     Request<BlockResponse> getBlocks(String from, String to, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlockByHash(String, boolean, int...)
+     */
     Request<BlockResponse> getBlockByHash(String blockHash, int... nodeIds);
 
+    /**
+     * get block by hash.
+     *
+     * @param blockHash block hash
+     * @param isPlain   default false, indicating that the returned block includes transaction information within the block.
+     *                  If specified, the returned block does not include transactions within the block
+     * @param nodeIds   specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
     Request<BlockResponse> getBlockByHash(String blockHash, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBatchBlocksByHash(ArrayList, boolean, int...)
+     */
     Request<BlockResponse> getBatchBlocksByHash(ArrayList<String> blockHashList, int... nodeIds);
 
+    /**
+     * get batch blocks based on hash list.
+     *
+     * @param blockHashList block hash list
+     * @param isPlain       default false, indicating that the returned block includes transaction information within the block.
+     *                      If specified, the returned block does not include transactions within the block
+     * @param nodeIds       specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
     Request<BlockResponse> getBatchBlocksByHash(ArrayList<String> blockHashList, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlockByNum(String, boolean, int...)
+     */
     Request<BlockResponse> getBlockByNum(BigInteger blockNumber, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlockByNum(String, boolean, int...)
+     */
     Request<BlockResponse> getBlockByNum(String blockNumber, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlockByNum(String, boolean, int...)
+     */
     Request<BlockResponse> getBlockByNum(String blockNumber, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBlockByNum(String, boolean, int...)
+     */
     Request<BlockResponse> getBlockByNum(BigInteger blockNumber, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBatchBlocksByNum(ArrayList, boolean, int...)
+     */
     Request<BlockResponse> getBatchBlocksByNum(ArrayList<Integer> blockNumberList, int... nodeIds);
 
+    /**
+     * @see BlockService#getBatchBlocksByStrNum(ArrayList, boolean, int...)
+     */
     Request<BlockResponse> getBatchBlocksByNum(ArrayList<Integer> blockNumberList, boolean isPlain, int... nodeIds);
 
+    /**
+     * @see BlockService#getBatchBlocksByStrNum(ArrayList, boolean, int...)
+     */
     Request<BlockResponse> getBatchBlocksByStrNum(ArrayList<String> blockNumberList, int... nodeIds);
 
+    /**
+     * query batch blocks based on block number list.
+     *
+     * @param blockNumberList block number list
+     * @param nodeIds         specific ids
+     * @param isPlain         default false, indicating that the returned block includes transaction information within the block.
+     *                        If specified, the returned block does not include transactions within the block
+     * @return {@link Request} of {@link BlockResponse}
+     */
     Request<BlockResponse> getBatchBlocksByStrNum(ArrayList<String> blockNumberList, boolean isPlain, int... nodeIds);
 
-    Request<BlockResponse> getAvgGenerateTimeByBlockNumber(BigInteger from, BigInteger to, int... nodeIds);
-
-    Request<BlockResponse> getAvgGenerateTimeByBlockNumber(String from, String to, int... nodeIds);
-
-    Request<BlockResponse> getBlocksByTime(BigInteger startTime, BigInteger endTime, int... nodeIds);
-
-    Request<BlockResponse> getBlocksByTime(String startTime, String endTime, int... nodeIds);
-
-    Request<BlockResponse> getChainHeight(int... nodeIds);
-
-    Request<BlockResponse> getGenesisBlock(int... nodeIds);
+    /**
+     * @see BlockService#getAvgGenerateTimeByBlockNumber(String, String, int...)
+     */
+    Request<BlockAvgTimeResponse> getAvgGenerateTimeByBlockNumber(BigInteger from, BigInteger to, int... nodeIds);
+
+    /**
+     * query block average generation time.
+     *
+     * @param from    start number of block
+     * @param to      end number of block
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
+    Request<BlockAvgTimeResponse> getAvgGenerateTimeByBlockNumber(String from, String to, int... nodeIds);
+
+    /**
+     * querying the count of blocks in a specified time interval.
+     *
+     * @param startTime start time
+     * @param endTime   end time
+     * @param nodeIds   specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
+    Request<BlockCountResponse> getBlocksByTime(BigInteger startTime, BigInteger endTime, int... nodeIds);
+
+    /**
+     * @see BlockService#getBlocksByTime(BigInteger, BigInteger, int...)
+     */
+    Request<BlockCountResponse> getBlocksByTime(String startTime, String endTime, int... nodeIds);
+
+    /**
+     * get the latest block number.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
+    Request<BlockNumberResponse> getChainHeight(int... nodeIds);
+
+    /**
+     * get the genesis block number.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link BlockResponse}
+     */
+    Request<BlockNumberResponse> getGenesisBlock(int... nodeIds);
 }
diff --git a/src/main/java/cn/hyperchain/sdk/service/MQService.java b/src/main/java/cn/hyperchain/sdk/service/MQService.java
index 5d43c15f..88077779 100644
--- a/src/main/java/cn/hyperchain/sdk/service/MQService.java
+++ b/src/main/java/cn/hyperchain/sdk/service/MQService.java
@@ -1,22 +1,65 @@
 package cn.hyperchain.sdk.service;
 
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.MQResponse;
+import cn.hyperchain.sdk.response.mq.MQResponse;
 
 import java.util.List;
 
 public interface MQService {
 
-
+    /**
+     * register mq queue.
+     *
+     * @param from        account address
+     * @param queueName   queue name that you want to name it
+     * @param routingkeys what message type you want to receive
+     * @param isVerbose   whether need to push transaction list when push block
+     * @param nodeIds     specific ids
+     * @return {@link Request} of {@link MQResponse}
+     */
     Request<MQResponse> registerQueue(String from, String queueName, List<String> routingkeys, Boolean isVerbose, int... nodeIds);
 
+    /**
+     * unregister mq queue.
+     *
+     * @param queueName     queue name
+     * @param exchangerName exchanger name
+     * @param from          account address
+     * @param nodeIds       specific ids
+     * @return {@link Request} of {@link Request}
+     */
     Request<MQResponse> unRegisterQueue(String from, String queueName, String exchangerName, int... nodeIds);
 
+    /**
+     * get all queue names.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link MQResponse}
+     */
     Request<MQResponse> getAllQueueNames(int... nodeIds);
 
+    /**
+     * inform mq server of starting work.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link MQResponse}
+     */
     Request<MQResponse> informNormal(int... nodeIds);
 
+    /**
+     * get exchanger names.
+     *
+     * @param nodeIds specific ids
+     * @return {@link Request} of {@link MQResponse}
+     */
     Request<MQResponse> getExchangerName(int... nodeIds);
 
+    /**
+     * delete exchanger.
+     *
+     * @param exchangerName the name of exchange that you want to delete
+     * @param nodeIds       specific ids
+     * @return {@link Request} of {@link MQResponse}
+     */
     Request<MQResponse> deleteExchanger(String exchangerName, int... nodeIds);
 }
diff --git a/src/main/java/cn/hyperchain/sdk/service/NodeService.java b/src/main/java/cn/hyperchain/sdk/service/NodeService.java
index 08dafd02..f4cead30 100644
--- a/src/main/java/cn/hyperchain/sdk/service/NodeService.java
+++ b/src/main/java/cn/hyperchain/sdk/service/NodeService.java
@@ -1,7 +1,7 @@
 package cn.hyperchain.sdk.service;
 
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.NodeResponse;
+import cn.hyperchain.sdk.response.node.NodeResponse;
 
 public interface NodeService {
     Request<NodeResponse> getNodes(int... ids);
diff --git a/src/main/java/cn/hyperchain/sdk/service/RadarService.java b/src/main/java/cn/hyperchain/sdk/service/RadarService.java
index b6232c95..91f54d70 100644
--- a/src/main/java/cn/hyperchain/sdk/service/RadarService.java
+++ b/src/main/java/cn/hyperchain/sdk/service/RadarService.java
@@ -1,8 +1,16 @@
 package cn.hyperchain.sdk.service;
 
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.RadarResponse;
+import cn.hyperchain.sdk.response.radar.RadarResponse;
 
 public interface RadarService {
+    /**
+     * to listen contract.
+     *
+     * @param sourceCode      solidity source code
+     * @param contractAddress contract address
+     * @param nodeIds         specific ids
+     * @return {@link Request} of {@link RadarResponse}
+     */
     Request<RadarResponse> listenContract(String sourceCode, String contractAddress, int... nodeIds);
 }
diff --git a/src/main/java/cn/hyperchain/sdk/service/TxService.java b/src/main/java/cn/hyperchain/sdk/service/TxService.java
index 6d9bc487..3cff034e 100644
--- a/src/main/java/cn/hyperchain/sdk/service/TxService.java
+++ b/src/main/java/cn/hyperchain/sdk/service/TxService.java
@@ -2,7 +2,7 @@
 
 import cn.hyperchain.sdk.request.Request;
 import cn.hyperchain.sdk.response.ReceiptResponse;
-import cn.hyperchain.sdk.response.TxResponse;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 
 import java.math.BigInteger;
 import java.util.ArrayList;
diff --git a/src/main/java/cn/hyperchain/sdk/service/impl/BlockServiceImpl.java b/src/main/java/cn/hyperchain/sdk/service/impl/BlockServiceImpl.java
index b04844dc..bb555632 100644
--- a/src/main/java/cn/hyperchain/sdk/service/impl/BlockServiceImpl.java
+++ b/src/main/java/cn/hyperchain/sdk/service/impl/BlockServiceImpl.java
@@ -3,7 +3,10 @@
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.BlockRequest;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.BlockResponse;
+import cn.hyperchain.sdk.response.block.BlockAvgTimeResponse;
+import cn.hyperchain.sdk.response.block.BlockCountResponse;
+import cn.hyperchain.sdk.response.block.BlockNumberResponse;
+import cn.hyperchain.sdk.response.block.BlockResponse;
 import cn.hyperchain.sdk.service.BlockService;
 
 import java.math.BigInteger;
@@ -24,90 +27,53 @@ public BlockServiceImpl(ProviderManager providerManager) {
         this.providerManager = providerManager;
     }
 
-    /**
-     * get latest block.
-     *
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
     @Override
     public Request<BlockResponse> getLatestBlock(int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "latestBlock", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockResponseBlockRequest = new BlockRequest(BLOCK_PREFIX + "latestBlock", providerManager, BlockResponse.class, nodeIds);
         return blockResponseBlockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBlocks(String, String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlocks(BigInteger from, BigInteger to, int... nodeIds) {
         return getBlocks(from.toString(), to.toString(), nodeIds);
     }
 
-    /**
-     * @see BlockServiceImpl#getBlocks(String, String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlocks(String from, String to, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBlocks", providerManager, BlockResponse.class, nodeIds);
-        HashMap<String, String> params = new HashMap<>();
-        params.put("from", from);
-        params.put("to", to);
-        blockResponseBlockRequest.addParams(params);
-
-        return blockResponseBlockRequest;
+        return getBlocks(from, to, false, nodeIds);
     }
 
-    /**
-     * @see BlockServiceImpl#getBlocks(String, String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlocks(BigInteger from, BigInteger to, boolean isPlain, int... nodeIds) {
         return getBlocks(from.toString(), to.toString(), isPlain, nodeIds);
     }
 
-    /**
-     * query the block of the specified block interval.
-     *
-     * @param from    start block number
-     * @param to      end block number
-     * @param isPlain default false, indicating that the returned block includes transaction information within the block.
-     *                If specified, the returned block does not include transactions within the block
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
     public Request<BlockResponse> getBlocks(String from, String to, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBlocks", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getBlocks", providerManager, BlockResponse.class, nodeIds);
         HashMap<String, Object> params = new HashMap<>();
         params.put("from", from);
         params.put("to", to);
         params.put("isPlain", isPlain);
-        blockResponseBlockRequest.addParams(params);
+        blockRequest.addParams(params);
 
-        return blockResponseBlockRequest;
+        return blockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBlockByHash(String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlockByHash(String blockHash, int... nodeIds) {
         return getBlockByHash(blockHash, false);
     }
 
-    /**
-     * get block by hash.
-     *
-     * @param blockHash block hash
-     * @param isPlain   default false, indicating that the returned block includes transaction information within the block.
-     *                  If specified, the returned block does not include transactions within the block
-     * @param nodeIds   specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
     public Request<BlockResponse> getBlockByHash(String blockHash, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBlockByHash", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockResponseBlockRequest = new BlockRequest(BLOCK_PREFIX + "getBlockByHash", providerManager, BlockResponse.class, nodeIds);
 
         blockResponseBlockRequest.addParams(blockHash);
         blockResponseBlockRequest.addParams(isPlain);
@@ -115,53 +81,37 @@ public Request<BlockResponse> getBlockByHash(String blockHash, boolean isPlain,
         return blockResponseBlockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBatchBlocksByHash(ArrayList, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByHash(ArrayList<String> blockHashList, int... nodeIds) {
         return getBatchBlocksByHash(blockHashList, false);
     }
 
-    /**
-     * get batch blocks based on hash list.
-     *
-     * @param blockHashList block hash list
-     * @param isPlain       default false, indicating that the returned block includes transaction information within the block.
-     *                      If specified, the returned block does not include transactions within the block
-     * @param nodeIds       specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByHash(ArrayList<String> blockHashList, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBatchBlocksByHash", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getBatchBlocksByHash", providerManager, BlockResponse.class, nodeIds);
         HashMap<String, Object> params = new HashMap<>();
         params.put("hashes", blockHashList);
         params.put("isPlain", isPlain);
-        blockResponseBlockRequest.addParams(params);
+        blockRequest.addParams(params);
 
-        return blockResponseBlockRequest;
+        return blockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBlockByNum(String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlockByNum(BigInteger blockNumber, int... nodeIds) {
         return getBlockByNum(blockNumber.toString());
     }
 
-    /**
-     * @see BlockServiceImpl#getBlockByNum(String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlockByNum(String blockNumber, int... nodeIds) {
         return getBlockByNum(blockNumber, false);
     }
 
-    /**
-     * @see BlockServiceImpl#getBlockByNum(String, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBlockByNum(BigInteger blockNumber, boolean isPlain, int... nodeIds) {
         return getBlockByNum(blockNumber.toString(), isPlain, nodeIds);
@@ -178,26 +128,22 @@ public Request<BlockResponse> getBlockByNum(BigInteger blockNumber, boolean isPl
      */
     @Override
     public Request<BlockResponse> getBlockByNum(String blockNumber, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBlockByNumber", providerManager, BlockResponse.class, nodeIds);
-        blockResponseBlockRequest.addParams(blockNumber);
-        blockResponseBlockRequest.addParams(isPlain);
-        return blockResponseBlockRequest;
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getBlockByNumber", providerManager, BlockResponse.class, nodeIds);
+        blockRequest.addParams(blockNumber);
+        blockRequest.addParams(isPlain);
+        return blockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBatchBlocksByNum(ArrayList, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByNum(ArrayList<Integer> blockNumberList, int... nodeIds) {
         return getBatchBlocksByNum(blockNumberList, false, nodeIds);
     }
 
-    /**
-     * @see BlockServiceImpl#getBatchBlocksByStrNum(ArrayList, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByNum(ArrayList<Integer> blockNumberList, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBatchBlocksByNumber", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockResponseBlockRequest = new BlockRequest(BLOCK_PREFIX + "getBatchBlocksByNumber", providerManager, BlockResponse.class, nodeIds);
         HashMap<String, Object> params = new HashMap<>();
         params.put("numbers", blockNumberList);
         params.put("isPlain", isPlain);
@@ -205,26 +151,16 @@ public Request<BlockResponse> getBatchBlocksByNum(ArrayList<Integer> blockNumber
         return blockResponseBlockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBatchBlocksByStrNum(ArrayList, boolean, int...)
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByStrNum(ArrayList<String> blockNumberList, int... nodeIds) {
         return getBatchBlocksByStrNum(blockNumberList, false, nodeIds);
     }
 
-    /**
-     * query batch blocks based on block number list.
-     *
-     * @param blockNumberList block number list
-     * @param nodeIds         specific ids
-     * @param isPlain         default false, indicating that the returned block includes transaction information within the block.
-     *                        If specified, the returned block does not include transactions within the block
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
     public Request<BlockResponse> getBatchBlocksByStrNum(ArrayList<String> blockNumberList, boolean isPlain, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBatchBlocksByNumber", providerManager, BlockResponse.class, nodeIds);
+        BlockRequest blockResponseBlockRequest = new BlockRequest(BLOCK_PREFIX + "getBatchBlocksByNumber", providerManager, BlockResponse.class, nodeIds);
         HashMap<String, Object> params = new HashMap<>();
         params.put("numbers", blockNumberList);
         params.put("isPlain", isPlain);
@@ -232,82 +168,52 @@ public Request<BlockResponse> getBatchBlocksByStrNum(ArrayList<String> blockNumb
         return blockResponseBlockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getAvgGenerateTimeByBlockNumber(String, String, int...)
-     */
+
     @Override
-    public Request<BlockResponse> getAvgGenerateTimeByBlockNumber(BigInteger from, BigInteger to, int... nodeIds) {
+    public Request<BlockAvgTimeResponse> getAvgGenerateTimeByBlockNumber(BigInteger from, BigInteger to, int... nodeIds) {
         return getAvgGenerateTimeByBlockNumber(from.toString(), to.toString(), nodeIds);
     }
 
-    /**
-     * query block average generation time.
-     *
-     * @param from    start number of block
-     * @param to      end number of block
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
-    public Request<BlockResponse> getAvgGenerateTimeByBlockNumber(String from, String to, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getAvgGenerateTimeByBlockNumber", providerManager, BlockResponse.class, nodeIds);
+    public Request<BlockAvgTimeResponse> getAvgGenerateTimeByBlockNumber(String from, String to, int... nodeIds) {
+        Request<BlockAvgTimeResponse> blockRequest = new BlockRequest(BLOCK_PREFIX + "getAvgGenerateTimeByBlockNumber", providerManager, BlockAvgTimeResponse.class, nodeIds);
         HashMap<String, String> params = new HashMap<>();
         params.put("from", from);
         params.put("to", to);
-        blockResponseBlockRequest.addParams(params);
-        return blockResponseBlockRequest;
+        blockRequest.addParams(params);
+        return blockRequest;
     }
 
-    /**
-     * querying the count of blocks in a specified time interval.
-     *
-     * @param startTime start time
-     * @param endTime   end time
-     * @param nodeIds   specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
+
     @Override
-    public Request<BlockResponse> getBlocksByTime(BigInteger startTime, BigInteger endTime, int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getBlocksByTime", providerManager, BlockResponse.class, nodeIds);
+    public Request<BlockCountResponse> getBlocksByTime(BigInteger startTime, BigInteger endTime, int... nodeIds) {
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getBlocksByTime", providerManager, BlockCountResponse.class, nodeIds);
         HashMap<String, Object> params = new HashMap<>();
         params.put("startTime", startTime);
         params.put("endTime", endTime);
-        blockResponseBlockRequest.addParams(params);
-        return blockResponseBlockRequest;
+        blockRequest.addParams(params);
+        return blockRequest;
     }
 
-    /**
-     * @see BlockServiceImpl#getBlocksByTime(BigInteger, BigInteger, int...)
-     */
+
     @Override
-    public Request<BlockResponse> getBlocksByTime(String startTime, String endTime, int... nodeIds) {
+    public Request<BlockCountResponse> getBlocksByTime(String startTime, String endTime, int... nodeIds) {
         return getBlocksByTime(new BigInteger(startTime), new BigInteger(endTime), nodeIds);
     }
 
 
-    /**
-     * get the latest block number.
-     *
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
     @Override
-    public Request<BlockResponse> getChainHeight(int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getChainHeight", providerManager, BlockResponse.class, nodeIds);
-        return blockResponseBlockRequest;
+    public Request<BlockNumberResponse> getChainHeight(int... nodeIds) {
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getChainHeight", providerManager, BlockNumberResponse.class, nodeIds);
+        return blockRequest;
     }
 
 
-    /**
-     * get the genesis block number.
-     *
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link BlockResponse}
-     */
     @Override
-    public Request<BlockResponse> getGenesisBlock(int... nodeIds) {
-        BlockRequest<BlockResponse> blockResponseBlockRequest = new BlockRequest<>(BLOCK_PREFIX + "getGenesisBlock", providerManager, BlockResponse.class, nodeIds);
-        return blockResponseBlockRequest;
+    public Request<BlockNumberResponse> getGenesisBlock(int... nodeIds) {
+        BlockRequest blockRequest = new BlockRequest(BLOCK_PREFIX + "getGenesisBlock", providerManager, BlockNumberResponse.class, nodeIds);
+        return blockRequest;
     }
 }
 
diff --git a/src/main/java/cn/hyperchain/sdk/service/impl/MQServiceImpl.java b/src/main/java/cn/hyperchain/sdk/service/impl/MQServiceImpl.java
index d460affb..7b58b690 100644
--- a/src/main/java/cn/hyperchain/sdk/service/impl/MQServiceImpl.java
+++ b/src/main/java/cn/hyperchain/sdk/service/impl/MQServiceImpl.java
@@ -3,7 +3,7 @@
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.MQRequest;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.MQResponse;
+import cn.hyperchain.sdk.response.mq.MQResponse;
 import cn.hyperchain.sdk.service.MQService;
 
 import java.util.HashMap;
@@ -18,19 +18,9 @@ public MQServiceImpl(ProviderManager providerManager) {
         this.providerManager = providerManager;
     }
 
-
-    /**
-     * register mq queue.
-     * @param from account address
-     * @param queueName queue name that you want to name it
-     * @param routingkeys what message type you want to receive
-     * @param isVerbose whether need to push transaction list when push block
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link MQResponse}
-     */
     @Override
     public Request<MQResponse> registerQueue(String from, String queueName, List<String> routingkeys, Boolean isVerbose, int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<MQResponse>(MQ_PREFIX + "register", providerManager, MQResponse.class, nodeIds);
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "register", providerManager, MQResponse.class, nodeIds);
 
         Map<String, Object> params = new HashMap<>();
         params.put("from", from);
@@ -43,67 +33,42 @@ public Request<MQResponse> registerQueue(String from, String queueName, List<Str
 
     }
 
-    /**
-     * get all queue names.
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link MQResponse}
-     */
     @Override
-    public Request<MQResponse> getAllQueueNames(int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<>(MQ_PREFIX + "getAllQueueNames", providerManager, MQResponse.class, nodeIds);
+    public Request<MQResponse> unRegisterQueue(String from, String queueName, String exchangerName, int... nodeIds) {
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "unRegister", providerManager, MQResponse.class, nodeIds);
+        mqResponseMQRequest.addParams(queueName);
+        mqResponseMQRequest.addParams(exchangerName);
+        mqResponseMQRequest.addParams(from);
+        mqResponseMQRequest.addParams("");
         return mqResponseMQRequest;
     }
 
-    /**
-     * inform mq server of starting work.
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link MQResponse}
-     */
+
     @Override
-    public Request<MQResponse> informNormal(int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<>(MQ_PREFIX + "informNormal", providerManager, MQResponse.class, nodeIds);
-        mqResponseMQRequest.addParams("");
+    public Request<MQResponse> getAllQueueNames(int... nodeIds) {
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "getAllQueueNames", providerManager, MQResponse.class, nodeIds);
         return mqResponseMQRequest;
     }
 
-    /**
-     * unregister mq queue.
-     * @param queueName queue name
-     * @param exchangerName exchanger name
-     * @param from account address
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link Request}
-     */
+
     @Override
-    public Request<MQResponse> unRegisterQueue(String from, String queueName, String exchangerName, int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<>(MQ_PREFIX + "unRegister", providerManager, MQResponse.class, nodeIds);
-        mqResponseMQRequest.addParams(queueName);
-        mqResponseMQRequest.addParams(exchangerName);
-        mqResponseMQRequest.addParams(from);
+    public Request<MQResponse> informNormal(int... nodeIds) {
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "informNormal", providerManager, MQResponse.class, nodeIds);
         mqResponseMQRequest.addParams("");
         return mqResponseMQRequest;
     }
 
-    /**
-     * get exchanger names.
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link MQResponse}
-     */
+
     @Override
     public Request<MQResponse> getExchangerName(int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<>(MQ_PREFIX + "getExchangerName", providerManager, MQResponse.class, nodeIds);
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "getExchangerName", providerManager, MQResponse.class, nodeIds);
         return mqResponseMQRequest;
     }
 
-    /**
-     * delete exchanger.
-     * @param exchangerName the name of exchange that you want to delete
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link MQResponse}
-     */
+
     @Override
     public Request<MQResponse> deleteExchanger(String exchangerName, int... nodeIds) {
-        MQRequest<MQResponse> mqResponseMQRequest = new MQRequest<>(MQ_PREFIX + "deleteExchanger", providerManager, MQResponse.class, nodeIds);
+        MQRequest mqResponseMQRequest = new MQRequest(MQ_PREFIX + "deleteExchanger", providerManager, MQResponse.class, nodeIds);
         mqResponseMQRequest.addParams(exchangerName);
         return mqResponseMQRequest;
     }
diff --git a/src/main/java/cn/hyperchain/sdk/service/impl/NodeServiceImpl.java b/src/main/java/cn/hyperchain/sdk/service/impl/NodeServiceImpl.java
index 06862335..49a339df 100644
--- a/src/main/java/cn/hyperchain/sdk/service/impl/NodeServiceImpl.java
+++ b/src/main/java/cn/hyperchain/sdk/service/impl/NodeServiceImpl.java
@@ -3,11 +3,10 @@
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.NodeRequest;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.NodeResponse;
+import cn.hyperchain.sdk.response.node.NodeResponse;
 import cn.hyperchain.sdk.service.NodeService;
 
 public class NodeServiceImpl implements NodeService {
-
     private ProviderManager providerManager;
     private static final String NODE_PREFIX = "node_";
 
@@ -17,7 +16,7 @@ public NodeServiceImpl(ProviderManager providerManager) {
 
     @Override
     public Request<NodeResponse> getNodes(int... ids) {
-        NodeRequest<NodeResponse> nodeRequest = new NodeRequest<NodeResponse>(NODE_PREFIX + "getNodes", providerManager, NodeResponse.class, ids);
+        NodeRequest nodeRequest = new NodeRequest(NODE_PREFIX + "getNodes", providerManager, NodeResponse.class, ids);
         return nodeRequest;
     }
 }
diff --git a/src/main/java/cn/hyperchain/sdk/service/impl/RadarServiceImpl.java b/src/main/java/cn/hyperchain/sdk/service/impl/RadarServiceImpl.java
index aa3fc0f2..a6ac01eb 100644
--- a/src/main/java/cn/hyperchain/sdk/service/impl/RadarServiceImpl.java
+++ b/src/main/java/cn/hyperchain/sdk/service/impl/RadarServiceImpl.java
@@ -3,7 +3,7 @@
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.RadarRequest;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.RadarResponse;
+import cn.hyperchain.sdk.response.radar.RadarResponse;
 import cn.hyperchain.sdk.service.RadarService;
 
 import java.util.HashMap;
@@ -17,16 +17,10 @@ public RadarServiceImpl(ProviderManager providerManager) {
         this.providerManager = providerManager;
     }
 
-    /**
-     * to listen contract.
-     * @param sourceCode solidity source code
-     * @param contractAddress contract address
-     * @param nodeIds specific ids
-     * @return {@link Request} of {@link RadarResponse}
-     */
+
     @Override
     public Request<RadarResponse> listenContract(String sourceCode, String contractAddress, int... nodeIds) {
-        RadarRequest<RadarResponse> radarResponseRequest = new RadarRequest<RadarResponse>(RADAR_PRE + "registerContract", providerManager, RadarResponse.class, nodeIds);
+        RadarRequest radarResponseRequest = new RadarRequest(RADAR_PRE + "registerContract", providerManager, RadarResponse.class, nodeIds);
         Map<String, Object> metas = new HashMap<>();
         metas.put("source", sourceCode);
         metas.put("address", contractAddress);
diff --git a/src/main/java/cn/hyperchain/sdk/service/impl/TxServiceImpl.java b/src/main/java/cn/hyperchain/sdk/service/impl/TxServiceImpl.java
index ece7bd7c..4f5f016c 100644
--- a/src/main/java/cn/hyperchain/sdk/service/impl/TxServiceImpl.java
+++ b/src/main/java/cn/hyperchain/sdk/service/impl/TxServiceImpl.java
@@ -5,7 +5,7 @@
 import cn.hyperchain.sdk.request.Request;
 import cn.hyperchain.sdk.request.TxRequest;
 import cn.hyperchain.sdk.response.ReceiptResponse;
-import cn.hyperchain.sdk.response.TxResponse;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 import cn.hyperchain.sdk.service.TxService;
 
 import java.math.BigInteger;
diff --git a/src/test/java/cn/hyperchain/sdk/service/BlockServiceTest.java b/src/test/java/cn/hyperchain/sdk/service/BlockServiceTest.java
index e66fab01..ef5a2708 100644
--- a/src/test/java/cn/hyperchain/sdk/service/BlockServiceTest.java
+++ b/src/test/java/cn/hyperchain/sdk/service/BlockServiceTest.java
@@ -6,10 +6,15 @@
 import cn.hyperchain.sdk.common.utils.FileUtil;
 import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
+import cn.hyperchain.sdk.request.BlockRequest;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.BlockResponse;
 import cn.hyperchain.sdk.response.ReceiptResponse;
-import cn.hyperchain.sdk.response.TxResponse;
+import cn.hyperchain.sdk.response.Response;
+import cn.hyperchain.sdk.response.block.BlockAvgTimeResponse;
+import cn.hyperchain.sdk.response.block.BlockCountResponse;
+import cn.hyperchain.sdk.response.block.BlockNumberResponse;
+import cn.hyperchain.sdk.response.block.BlockResponse;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 import cn.hyperchain.sdk.transaction.Transaction;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
@@ -90,7 +95,7 @@ public static void deploy() throws RequestException {
     public void testGetLatestBlock() throws RequestException {
         Request<BlockResponse> blockResponseBlockRequest = blockService.getLatestBlock();
         BlockResponse blockResponse = blockResponseBlockRequest.send();
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -98,7 +103,7 @@ public void testGetBlocks() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlocks(BigInteger.valueOf(1), BigInteger.valueOf(2));
         BlockResponse blockResponse = blockResponseRequest.send();
         System.out.println(blockResponse);
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -106,7 +111,7 @@ public void testGetBlocks1() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlocks(String.valueOf(1), String.valueOf(2));
         BlockResponse blockResponse = blockResponseRequest.send();
         System.out.println(blockResponse);
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -115,7 +120,7 @@ public void testGetBlocks2() throws RequestException {
         BlockResponse blockResponse = blockResponseRequest.send();
 
         System.out.println(blockResponse);
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -125,17 +130,18 @@ public void testGetBlocks3() throws RequestException {
         BlockResponse blockResponse = blockResponseRequest.send();
 
         System.out.println(blockResponse);
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
     public void testGetBlockByHash() throws RequestException {
         String blockHash = blockHashes.get(0);
+//        String blockHash = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
 
         Request<BlockResponse> blockResponseRequest = blockService.getBlockByHash(blockHash);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -149,7 +155,7 @@ public void testGetBatchBlocksByHash() throws RequestException {
         Request<BlockResponse> responseRequest = blockService.getBatchBlocksByHash(blockHashes);
         BlockResponse blockResponse = responseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -162,7 +168,7 @@ public void testGetBatchBlocksByHash1() throws RequestException {
 
         Request<BlockResponse> responseRequest = blockService.getBatchBlocksByHash(blockHashes, true);
         BlockResponse blockResponse = responseRequest.send();
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -172,7 +178,7 @@ public void testGetBlockByNum() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlockByNum(blockNum);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -182,7 +188,7 @@ public void testGetBlockByNum1() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlockByNum(blockNum);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -192,7 +198,7 @@ public void testGetBlockByNum2() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlockByNum(blockNum, false);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -202,7 +208,7 @@ public void testGetBlockByNum3() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBlockByNum(blockNum, false);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -214,7 +220,7 @@ public void testGetBatchBlocksByNum() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBatchBlocksByNum(blockNums);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -226,7 +232,7 @@ public void testGetBatchBlocksByNum1() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBatchBlocksByNum(blockNums, false);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -238,7 +244,7 @@ public void testGetBtachBlocksByStrNum() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBatchBlocksByStrNum(blockNums);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -250,7 +256,7 @@ public void testGetBtachBlocksByStrNum1() throws RequestException {
         Request<BlockResponse> blockResponseRequest = blockService.getBatchBlocksByStrNum(blockNums, false);
         BlockResponse blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocks());
+        System.out.println(blockResponse.getResult());
     }
 
     @Test
@@ -258,10 +264,10 @@ public void testGetAvgGenerateTimeByBlockNumber() throws RequestException {
         BigInteger from = BigInteger.valueOf(1);
         BigInteger to = BigInteger.valueOf(2);
 
-        Request<BlockResponse> blockResponseRequest = blockService.getAvgGenerateTimeByBlockNumber(from, to);
-        BlockResponse blockResponse = blockResponseRequest.send();
+        Request<BlockAvgTimeResponse> blockRequest = blockService.getAvgGenerateTimeByBlockNumber(from, to);
+        BlockAvgTimeResponse blockResponse = blockRequest.send();
 
-        System.out.println(blockResponse.getAvgGenerateTime());
+        System.out.println(blockResponse);
     }
 
     @Test
@@ -269,10 +275,10 @@ public void testGetAvgGenerateTimeByBlockNumber1() throws RequestException {
         String from = String.valueOf(1);
         String to = String.valueOf(2);
 
-        Request<BlockResponse> blockResponseRequest = blockService.getAvgGenerateTimeByBlockNumber(from, to);
-        BlockResponse blockResponse = blockResponseRequest.send();
+        Request<BlockAvgTimeResponse> blockRequest = blockService.getAvgGenerateTimeByBlockNumber(from, to);
+        BlockAvgTimeResponse blockAvgTimeResponse = blockRequest.send();
 
-        System.out.println(blockResponse.getAvgGenerateTime());
+        System.out.println(blockAvgTimeResponse);
     }
 
     @Test
@@ -282,10 +288,10 @@ public void testGetBlocksByTime() throws RequestException {
         BigInteger endTime = BigInteger.valueOf(1559193987434588900L);
 
 
-        Request<BlockResponse> blockResponseRequest = blockService.getBlocksByTime(startTime, endTime);
-        BlockResponse blockResponse = blockResponseRequest.send();
+        BlockRequest blockResponseRequest = (BlockRequest) blockService.getBlocksByTime(startTime, endTime);
+        Response blockResponse = blockResponseRequest.send();
 
-        System.out.println(blockResponse.getBlocksCount());
+        System.out.println(blockResponse);
     }
 
     @Test
@@ -294,24 +300,25 @@ public void testGetBlocksByTime1() throws RequestException {
         String startTime = String.valueOf(1559549200);
         String endTime = String.valueOf(1559549300);
 
-        Request<BlockResponse> blockResponseRequest = blockService.getBlocksByTime(startTime, endTime);
-        BlockResponse blockResponse = blockResponseRequest.send();
+        Request<BlockCountResponse> blockRequest = blockService.getBlocksByTime(startTime, endTime);
+        BlockCountResponse blockResponse = blockRequest.send();
 
-        System.out.println(blockResponse.getBlocksCount());
+        System.out.println(blockResponse);
     }
 
     @Test
     public void testGetChainHeight() throws RequestException {
-        Request<BlockResponse> blockResponseRequest = blockService.getChainHeight();
-        BlockResponse blockResponse = blockResponseRequest.send();
+        Request<BlockNumberResponse> blockRequest = blockService.getChainHeight();
+        BlockNumberResponse blockNumberResponse = blockRequest.send();
 
-        System.out.println(blockResponse.getBlockNumber());
+        System.out.println(blockNumberResponse);
+        System.out.println(blockNumberResponse.getResult());
     }
 
     @Test
     public void testGetGenesisBlock() throws RequestException {
-        Request<BlockResponse> blockResponseRequest = blockService.getGenesisBlock();
-        BlockResponse blockResponse = blockResponseRequest.send();
-        System.out.println(blockResponse.getBlockNumber());
+        Request<BlockNumberResponse> blockRequest = blockService.getGenesisBlock();
+        BlockNumberResponse blockNumberResponse = blockRequest.send();
+        System.out.println(blockNumberResponse.getResult());
     }
 }
diff --git a/src/test/java/cn/hyperchain/sdk/service/MQServiceTest.java b/src/test/java/cn/hyperchain/sdk/service/MQServiceTest.java
index 746c9ea4..1423d77e 100644
--- a/src/test/java/cn/hyperchain/sdk/service/MQServiceTest.java
+++ b/src/test/java/cn/hyperchain/sdk/service/MQServiceTest.java
@@ -3,7 +3,7 @@
 import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.MQResponse;
+import cn.hyperchain.sdk.response.mq.MQResponse;
 import org.junit.Before;
 import org.junit.Test;
 
diff --git a/src/test/java/cn/hyperchain/sdk/service/NodeServiceTest.java b/src/test/java/cn/hyperchain/sdk/service/NodeServiceTest.java
index 2ca87cca..cc1541c2 100644
--- a/src/test/java/cn/hyperchain/sdk/service/NodeServiceTest.java
+++ b/src/test/java/cn/hyperchain/sdk/service/NodeServiceTest.java
@@ -2,17 +2,16 @@
 
 import cn.hyperchain.sdk.exception.RequestException;
 import cn.hyperchain.sdk.provider.ProviderManager;
-import cn.hyperchain.sdk.response.NodeResponse;
+import cn.hyperchain.sdk.response.node.NodeResponse;
 import org.junit.Test;
 
 public class NodeServiceTest {
-
     private ProviderManager providerManager = Common.providerManager;
     private NodeService nodeService = ServiceManager.getNodeService(providerManager);
 
     @Test
     public void testGetNode() throws RequestException {
         NodeResponse nodeResponse = nodeService.getNodes().send();
-        System.out.println(nodeResponse.getNodes());
+        System.out.println(nodeResponse.getResult());
     }
 }
diff --git a/src/test/java/cn/hyperchain/sdk/service/RadarServiceTest.java b/src/test/java/cn/hyperchain/sdk/service/RadarServiceTest.java
index 158a58da..aa01d2f2 100644
--- a/src/test/java/cn/hyperchain/sdk/service/RadarServiceTest.java
+++ b/src/test/java/cn/hyperchain/sdk/service/RadarServiceTest.java
@@ -5,12 +5,10 @@
 import cn.hyperchain.sdk.common.solidity.Abi;
 import cn.hyperchain.sdk.common.utils.FileUtil;
 import cn.hyperchain.sdk.exception.RequestException;
-import cn.hyperchain.sdk.provider.DefaultHttpProvider;
-import cn.hyperchain.sdk.provider.HttpProvider;
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.Request;
-import cn.hyperchain.sdk.response.RadarResponse;
 import cn.hyperchain.sdk.response.ReceiptResponse;
+import cn.hyperchain.sdk.response.radar.RadarResponse;
 import cn.hyperchain.sdk.transaction.Transaction;
 import org.junit.BeforeClass;
 import org.junit.Ignore;
@@ -19,9 +17,7 @@
 import java.io.IOException;
 
 public class RadarServiceTest {
-    private static String url = "localhost:8081";
-    private static HttpProvider httpProvider = new DefaultHttpProvider.Builder().setUrl(url).build();
-    private static ProviderManager providerManager = new ProviderManager.Builder().providers(httpProvider).build();
+    private static ProviderManager providerManager = Common.soloProviderManager;
     private static RadarService radarService = ServiceManager.getRadarService(providerManager);
     private static String contractAddress = null;
 
diff --git a/src/test/java/cn/hyperchain/sdk/service/TxServiceTest.java b/src/test/java/cn/hyperchain/sdk/service/TxServiceTest.java
index 116be480..fee7772e 100644
--- a/src/test/java/cn/hyperchain/sdk/service/TxServiceTest.java
+++ b/src/test/java/cn/hyperchain/sdk/service/TxServiceTest.java
@@ -8,7 +8,7 @@
 import cn.hyperchain.sdk.provider.ProviderManager;
 import cn.hyperchain.sdk.request.Request;
 import cn.hyperchain.sdk.response.ReceiptResponse;
-import cn.hyperchain.sdk.response.TxResponse;
+import cn.hyperchain.sdk.response.tx.TxResponse;
 import cn.hyperchain.sdk.transaction.Transaction;
 import org.junit.BeforeClass;
 import org.junit.Ignore;