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+---
+title: "Dubbo to ServiceComb 迁移指南"
+lang: cn
+ref: dubbo_to_servicecomb
+permalink: /cn/docs/dubbo_to_servicecomb/
+excerpt: "Dubbo to ServiceComb 迁移指南"
+last_modified_at: 2017-11-27T11:08:00+08:00
+author: Sean Yin
+redirect_from:
+ - /theme-setup/
+---
+
+Dubbo和Java chassis底层都使用了Spring的依赖注入和bean管理系统，所以使用Dubbo的服务迁移到ServiceComb工作量较小，
+主要改动在依赖和配置方面。
+
+本文示例代码可在[Java chassis](https://github.com/ServiceComb/ServiceComb-Java-Chassis/tree/master/samples)中获取。
+
+## 服务提供方
+### 替换依赖
+将对dubbo的依赖替换为对Java chassis的依赖
+
+Dubbo
+```xml
+
+ com.alibaba
+ dubbo
+ ${dubbo.version}
+
+```
+
+Java chassis
+```xml
+
+
+
+ io.servicecomb
+ java-chassis-dependencies
+ ${java.chassis.version}
+ pom
+ import
+
+
+
+
+
+
+ io.servicecomb
+ transport-highway
+
+
+ io.servicecomb
+ transport-rest-vertx
+
+
+ io.servicecomb
+ provider-pojo
+
+
+```
+
+### 替换服务接口注释
+以 `@Service` 注释方式暴露的服务接口，用 `@RpcSchema` 替代
+
+Dubbo
+```java
+import com.alibaba.dubbo.config.annotation.Service;
+
+@Service
+public class SomeServiceImpl implements SomeService {
+ // ...
+}
+```
+
+Java chassis
+```java
+@RpcSchema(schemaId = "someServiceEndpoint")
+public class SomeServiceImpl implements SomeService {
+ // ...
+}
+```
+
+### 修改提供方启动入口
+
+Dubbo
+```java
+public class ProviderMain
+{
+
+ public static void main(String[] args) throws Exception
+ {
+ @SuppressWarnings(
+ { "resource", "unused" })
+ ApplicationContext context = new ClassPathXmlApplicationContext("conf/applicationContext.xml");
+ System.out.println("Dubbo provider started successfully...");
+
+ System.in.read();
+ }
+}
+```
+
+Java chassis
+```java
+public class ProviderMain
+{
+
+ public static void main(String[] args) throws Exception
+ {
+ Log4jUtils.init();
+ BeanUtils.init();
+
+ System.out.println("ServiceComb provider started successfully...");
+ }
+}
+```
+
+### 修改服务提供方配置
+Dubbo服务通过一个XML文件同时配置了服务接口、服务注册中心地址、服务监听端口等所有内容。
+```xml
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+Java chassis也同样提供了以XML文件暴露服务接口的方式，但其他服务配置则通过 `microservice.yaml` 文件提供。
+```xml
+
+
+
+
+
+
+```
+
+```yaml
+APPLICATION_ID: my-application
+service_description:
+ name: service-provider
+ version: 0.0.1
+cse:
+ service:
+ registry:
+ address: http://127.0.0.1:30100 # 服务注册中心地址
+ rest:
+ address: 0.0.0.0:8080 # 服务REST端口
+```
+
+## 服务消费方
+### 替换依赖
+将对Dubbo的依赖替换为对Java chassis的依赖
+
+Dubbo
+```xml
+
+ com.alibaba
+ dubbo
+ ${dubbo.version}
+
+```
+
+Java chassis
+```xml
+
+
+
+ io.servicecomb
+ java-chassis-dependencies
+ ${java.chassis.version}
+ pom
+ import
+
+
+
+
+
+
+ io.servicecomb
+ transport-highway
+
+
+ io.servicecomb
+ transport-rest-vertx
+
+
+ io.servicecomb
+ provider-pojo
+
+
+```
+
+### 修改消费方启动入口
+Dubbo
+```java
+public class ConsumerMain
+{
+
+ public static void main(String[] args) throws Exception
+ {
+ @SuppressWarnings(
+ { "resource", "unused" })
+ ApplicationContext context = new ClassPathXmlApplicationContext("conf/applicationContext.xml");
+ System.out.println("Dubbo Consumer started successfully...");
+
+ System.in.read();
+ }
+}
+```
+
+Java chassis
+```java
+public class ConsumerMain
+{
+
+ public static void main(String[] args) throws Exception
+ {
+ Log4jUtils.init();
+ BeanUtils.init();
+
+ System.out.println("ServiceComb Consumer started successfully...");
+ }
+}
+```
+
+### 服务异步调用
+Dubbo
+```java
+ SomeService someService = (SomeService) context.getBean("someServiceRef");
+ String hello = someService.sayHello("world");
+ Future future = RpcContext.getContext().getFuture();
+ return future.get();
+```
+
+Java chassis
+```java
+ ApplicationContext context = BeanUtils.getContext();
+ SomeService someService = (SomeService) context.getBean("someServiceRef");
+
+ CompletableFuture future = CompletableFuture.supplyAsync(() -> someService.sayHello("world"));
+ return future.get();
+```
+
+### 修改服务提供方配置
+Dubbo服务通过一个XML文件同时配置了远程服务提供方接口、服务注册中心地址、服务监听端口等所有内容。
+```xml
+
+
+
+
+
+
+
+
+
+
+
+
+```
+
+Java chassis也同样提供了以XML文件引用远程服务提供方接口的方式，但其他服务配置则通过 `microservice.yaml` 文件提供。
+```xml
+
+
+
+
+
+
+
+
+```
+
+```yaml
+APPLICATION_ID: my-application
+service_description:
+ name: service-consumer
+ version: 0.0.1
+cse:
+ service:
+ registry:
+ address: http://127.0.0.1:30100
+```