dubbo

生产者

  项目结构

IDemoService.java:

     package com.test.dubbo.service;

public interface IDemoService {
    
    public String sayHello(String name);

}

DemoServiceImpl .java
import com.alibaba.dubbo.config.annotation.Service;
import com.test.dubbo.service.IDemoService;

public class DemoServiceImpl  implements IDemoService {
     /*
     * (non-Javadoc)
     *
     * @see com.test.dubbo.service.IDemoService#sayHello(java.lang.String)
     */
    public String sayHello(String name) {
        return "Hello Dubbo,Hello " + name;
    }

}

dubbo-provider.xml

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"

xsi:schemaLocation="http://www.springframework.org/schema/beans       

    http://www.springframework.org/schema/beans/spring-beans.xsd       

    http://code.alibabatech.com/schema/dubbo        

    http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="dubbo" />
    
    <dubbo:protocol name="dubbo" port="20880" />    

    <!-- 使用zookeeper注册中心暴露服务地址 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181" />

  <bean id="demoService" class="com.test.dubbo.service.impl.DemoServiceImpl" />    
    <!-- 声明需要暴露的服务接口 -->
    <dubbo:service  ref="demoService" interface="com.test.dubbo.service.IDemoService"/>

</beans> 
 
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    id="WebApp_ID" version="3.0">
    <display-name>dubbo-service</display-name>
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
        <welcome-file>index.htm</welcome-file>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>default.html</welcome-file>
        <welcome-file>default.htm</welcome-file>
        <welcome-file>default.jsp</welcome-file>
    </welcome-file-list>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:dubbo-provider.xml
        </param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
</web-app>


dubbo-consumer.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
    xsi:schemaLocation="http://www.springframework.org/schema/beans          
    http://www.springframework.org/schema/beans/spring-beans.xsd          
    http://code.alibabatech.com/schema/dubbo          
    http://code.alibabatech.com/schema/dubbo/dubbo.xsd">

    <!-- 提供方应用信息，用于计算依赖关系 -->
    <dubbo:application name="dubbo-consumer" />

    <!-- 使用multicast广播注册中心暴露服务地址 -->
    <!-- <dubbo:registry address="multicast://224.5.6.7:1234" /> -->

    <!-- 使用zookeeper注册中心暴露服务地址 -->
    <dubbo:registry address="zookeeper://127.0.0.1:2181" />

    <!-- 声明需要暴露的服务接口 -->
    <dubbo:reference id="demoService"  interface="com.test.dubbo.service.IDemoService"/>

</beans>  

package com.test.dubbo;

import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.test.dubbo.service.IDemoService;

public class TestPro {
	 public static void main(String[] args) {
	        ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(
	                "dubbo-consumer.xml");
	        context.start();
	        IDemoService demoService = (IDemoService) context.getBean("demoService"); // 获取远程服务代理
	        String hello = demoService.sayHello("world"); // 执行远程方法
	        System.out.println(hello);
	    }

}
运行TestPro.java