dubbo的入门

服务提供者（porvider）

一.导入相关依赖

二.创建applicationContext-service.xml文件

<?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">
     //唯一标识
    <dubbo:application name="dubboxdemo-service"/>
     //zookeeper地址
    <dubbo:registry address="zookeeper://192.168.0.100:2181"/>
    //配置协议和端口

<dubbo:protocol name="duboo" port="20880"/>

    //匹配相关服务
    <dubbo:annotation package="com.jiu.provider.impl" />

</beans>
三.web.xml

<!-- 加载spring容器的监听器 -->
<context-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:applicationContext*.xml</param-value>
</context-param>
<listener>      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

四.提供server服务方法

import com.alibaba.dubbo.config.annotation.Service;
@Service （此注解书dubbo相关包下的）
public class UserProviderImpl implements UserProvider {
    @Override
    public String providerTest() {
        return "ni hao  a con" ;
    }
}

服务消费者（concumer）

一.导入相关依赖

二.创建applicationContext-service.xml文件

<?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">
     //唯一标识
    <dubbo:application name="dubboxdemo-concumer"/>
     //zookeeper地址
    <dubbo:registry address="zookeeper://192.168.0.100:2181"/>
    //扫描contorller
    <dubbo:annotation package="com.jiu.controller" />

    //不需要先启动提供者
   <dubbo:consumer check="false"/>

</beans>
三.web。xml

<servlet>
  <servlet-name>springmvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <!-- 指定加载的配置文件 ，通过参数contextConfigLocation加载-->
  <init-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext-web.xml</param-value>
  </init-param>
</servlet>
<servlet-mapping>
  <servlet-name>springmvc</servlet-name>
  <url-pattern>/*.do</url-pattern>
</servlet-mapping>
四。编写controller接口

@Controller
@RequestMapping("/user")
publicclass UserController {
  @Reference
private UserProvider useProvider;
 @RequestMapping("/showName") 
@ResponseBody
 public String showName(){ 

useProvider.providerTest(); } }