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This article mainly explains "how to achieve demo based on dubbo protocol". The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to achieve demo based on dubbo protocol".

Description: this article is based on redhat6 to do demo,jdk and other environments are ready. It is recommended that java developers understand the linux system.

The demo project is shown in the figure:

The running result is shown in the figure:

2. Create a new API service: com.enson.demo.service.DubboService

Code:

Package com.enson.demo.service;public interface DubboService {public String printWord (String word);}

3. Implementation API: com.enson.demo.service.impl.DubboServiceImpl

Code:

Package com.enson.demo.service.impl;import java.text.SimpleDateFormat;import java.util.Date;import com.enson.demo.service.DubboService;public class DubboServiceImpl implements DubboService {@ Override public String printWord (String word) {String outWord = new SimpleDateFormat ("[yyyy-MM-dd HH:mm:ss]") .format (new Date ()) + word; System.err.println (outWord) Return outWord;}}

4. Create provider.xml

5. Create a test.Provider class as the entry for service registration:

Package test;import java.io.IOException;import org.springframework.context.support.ClassPathXmlApplicationContext;public class Provider {public static void main (String [] args) throws IOException {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext (new String [] {"provider.xml"}); context.start (); System.in.read (); / / press any key to exit}}

The above completes the writing of the service provider.

6. Create com.enson.custom.action.DubboAction

Package com.enson.custom.action;import com.enson.demo.service.DubboService;public class DubboAction {public DubboService dubboService; / / Spring method injects public void setDubboService (DubboService dubboService) {this.dubboService = dubboService;} public String printWord () {System.out.println ("action printWord is executed!") ; return this.dubboService.printWord ("Hello World"); / / execute remote method}}

7. Create cstom.xml

8. Create a consumer class: test.Custom

Package test;import org.springframework.context.support.ClassPathXmlApplicationContext;import com.enson.custom.action.DubboAction;public class Custom {public static void main (String [] args) {ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext (new String [] {"consumer.xml"}); context.start (); DubboAction dubboAction = (DubboAction) context.getBean ("dubboAction") / / get the remote service agent String word = dubboAction.printWord (); / / execute the remote method System.out.println (word); / / display the call result}}

Test:

1. Start zookeeper.

2. Execute Provider. Run as java application

3. Execute Custom. Run as java application

Just check the console.

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