diff --git a/src/main/java/com/alibaba/fastjson/JSONObject.java b/src/main/java/com/alibaba/fastjson/JSONObject.java
index 24203f1fd1..5a42425cfd 100644
--- a/src/main/java/com/alibaba/fastjson/JSONObject.java
+++ b/src/main/java/com/alibaba/fastjson/JSONObject.java
@@ -109,8 +109,14 @@ public boolean containsValue(Object value) {
     public Object get(Object key) {
         Object val = map.get(key);
 
-        if (val == null && key instanceof Number) {
-            val = map.get(key.toString());
+        if (val == null) {
+            if (key instanceof Number
+                    || key instanceof Character
+                    || key instanceof Boolean
+                    || key instanceof UUID
+            ) {
+                val = map.get(key.toString());
+            }
         }
 
         return val;
diff --git a/src/test/java/com/alibaba/json/bvt/issue_3300/Issue3356.java b/src/test/java/com/alibaba/json/bvt/issue_3300/Issue3356.java
new file mode 100644
index 0000000000..a761a945c4
--- /dev/null
+++ b/src/test/java/com/alibaba/json/bvt/issue_3300/Issue3356.java
@@ -0,0 +1,21 @@
+package com.alibaba.json.bvt.issue_3300;
+
+import com.alibaba.fastjson.JSONObject;
+import junit.framework.TestCase;
+
+import java.util.UUID;
+
+public class Issue3356 extends TestCase {
+    public void test_for_issue() throws Exception {
+        UUID uuid = UUID.randomUUID();
+
+        JSONObject object = new JSONObject();
+        object.put("1", "1");
+        object.put(uuid.toString(), uuid.toString());
+        object.put("A", "A");
+        object.put("true", "true");
+        assertEquals("1", object.get(1));
+        assertEquals("true", object.get(true));
+        assertEquals("A", object.get('A'));
+    }
+}