dubbo在idea上的简单实现

1.新建项目

项目命名为dubbotest，然后分别通过Moudle建立produce，dubbo_api和consumer

此处选maven-archetype-quickstart是可以的，什么都不选也没问题

其他两个类似，不同的是创建consumer是需要选择web

最终项目目录如下：

2、①修改dubbotest的pom.xml文件：

 

  4.0.0
 
  com.wj
  dubbo_demo
  1.0-SNAPSHOT
 
  dubbo_demo
  http://www.example.com
 
  
    UTF-8
    1.7
    1.7
    0.3.0
    2.5.3
    2.8.4
    4.3.6.RELEASE
    1.8
    UTF-8
  
 
  
    
      com.alibaba
      dubbo
      2.5.3
      
        
          org.springframework
          spring
        
      
    
    
      com.github.sgroschupf
      zkclient
      0.1
    
    
    
      org.springframework
      spring-core
      ${spring.version}
    
    
      org.springframework
      spring-beans
      ${spring.version}
    
    
      org.springframework
      spring-context
      ${spring.version}
    
    
      org.springframework
      spring-jdbc
      ${spring.version}
    
    
      org.springframework
      spring-web
      ${spring.version}
    
    
      org.springframework
      spring-webmvc
      ${spring.version}
    
    
      org.springframework
      spring-aop
      ${spring.version}
    
    
      org.springframework
      spring-tx
      ${spring.version}
    
    
      org.springframework
      spring-orm
      4.3.12.RELEASE
    
    
      org.springframework
      spring-context-support
      ${spring.version}
    
    
      org.springframework
      spring-test
      ${spring.version}
    
    
      org.springframework
      spring-jms
      4.2.1.RELEASE
    
    
      org.aspectj
      aspectjrt
      1.7.4
    
    
      org.aspectj
      aspectjweaver
      1.6.11
    
  
 
  
    dubbo_api
    dubbo_consumer
    dubbo_provider
  
 

②修改product里的pom文件

 

    
        dubbo_demo
        com.wj
        1.0-SNAPSHOT
    
    4.0.0
    com.wj
    dubbo_provider
    dubbo_provider
    http://www.example.com
 
    
        UTF-8
        1.7
        1.7
    
 
    
        
            com.wj
            dubbo_api
            1.0-SNAPSHOT
            compile
        
    
 

③dubbo_api里的pom文件

 

    
        dubbo_demo
        com.wj
        1.0-SNAPSHOT
    
    4.0.0
 
    com.wj
    dubbo_api
 
    dubbo_api
    http://www.example.com
 
    
        UTF-8
        1.7
        1.7
    
 
    
        
            junit
            junit
            4.11
            test
        
    
 

④consumer里的pom文件

 

    
        dubbo_demo
        com.wj
        1.0-SNAPSHOT
    
    4.0.0
 
    com.wj
    dubbo_consumer
 
    dubbo_consumer
    
    http://www.example.com
 
    
        UTF-8
        1.7
        1.7
    
 
    
        
            com.wj
            dubbo_api
            1.0-SNAPSHOT
            compile
        
    

3、配置文件和编写代码：

①在dubbo_api中定义服务接口：

package com.wj.service;
 
public interface HelloService {
    String sayHello(String name);
}

②在produce中实现接口：

package com.wj.impl;
 
import com.wj.service.HelloService;
 
public class HelloServiceImpl implements HelloService{
    @Override
    public String sayHello(String name) {
        return "Hello World！";
    }
}

③produce项目中的resource文件包含dubbo-produce.xml和springmvc.xml配置文件，没有resource，自己新建，并标记为Resources Root

其中dubbo-produce.xml如下：

springmvc.xml:

④编写测试类:

package com.wj.test;
 
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
import java.io.IOException;
 
public class ProviderTest {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("classpath:springmvc.xml");
        context.start();
        System.out.println("Dubbo provider");
        try {
            System.in.read();   // 按任意键退出
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
}
 

⑤consumer在resource下新建dubbo-consumer.xml:

springmvc.xml:

⑥消费者测试类：

package com.wj.test;
 
import com.wj.service.HelloService;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
import java.io.IOException;
 
public class ConsumerTest {
    public static void main(String[] args) {
        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[] { "classpath:springmvc.xml" });
 
        context.start();
        HelloService demoService = (HelloService) context.getBean("helloService");
 
        System.out.println(demoService.sayHello("Hello World!wj"));
        try {
            System.in.read();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
 
}

4、按照先后顺序，首先启动Zookeeper：zkServer.cmd 然后启动服务生产者测试类，最后启动服务消费者的测试类，当控制台输出以下结果，则代表成功。

log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment).
log4j:WARN Please initialize the log4j system properly.
Dubbo provider start...

Process finished with exit code 1
log4j:WARN Please initialize the log4j system properly.
Hello World！