dubbox入门小demo

• linux系统搭建环境
  安装tomcat和zookeeper注册中心，如果是在同一台机器，zookeeper端口号是2181,不用进行修改.
• 服务提供者开发
  创建业务接口
  @Service要用阿里巴巴dubbo提供的注解，并在web.xml配置springlistener,
  在spring配置文件中，配置如下

<dubbo:application name="dubboxdemo-service"/>  
<dubbo:registry address="zookeeper://192.168.25.128:2181"/> 
<dubbo:annotation package="cn.itcast.dubboxdemo.service" /> 

• 服务消费者开发
  web.xml配置

 <!-- 解决post乱码 -->
	<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>		
  <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>
</web-app>

• Controller类代码
  @Controller
  @RequestMapping("/user")
  public class UserController {
  @Reference
  private UserService userService;
  @RequestMapping("/showName")
  @ResponseBody
  public String showName(){
  return userService.getName();
  }

拷贝服务提供者业务服务包和接口
spring配置如下

<mvc:annotation-driven >
		<mvc:message-converters register-defaults="false">
			<bean class="org.springframework.http.converter.StringHttpMessageConverter">  
				<constructor-arg value="UTF-8" />
			</bean>  
		</mvc:message-converters>	
	</mvc:annotation-driven>
	<!-- 引用dubbo 服务 -->
	<dubbo:application name="dubboxdemo-web" />
	<dubbo:registry address="zookeeper://192.168.25.132:2181"/>
     <dubbo:annotation package="cn.itcast.dubboxdemo.controller" />
</beans>

浏览器输入http://localhost:8082/user/showName.do，查看测试结果

dubbox2.8.4需要jdk1.8支持