Dubbox 框架消费端(二)

消费者开发步骤：

（1）创建Maven工程dubbox-customer，在pom.xml引入依赖，同“dubboxservice”工程。

（2）在webapps目录下WEB-INF 目录，并修改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"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         version="2.5">
    <!-- 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:springmvc.xml</param-value>
        </init-param>
    </servlet>

    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>


</web-app>

（3）拷贝业务接口

将“dubboxservice”工程的org.hlx.service 包下面的接口拷贝至此工程。

（4）编写Controller

package com.hlx.demo.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import org.hlx.service.UserService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;


/**
 * @Author HLX
 * @Date 2020/1/4 15:11
 */
@Controller
@RequestMapping("/user")
public class UserController {

    //远程调用接口(阿里巴巴)引用哦
    @Reference
    private UserService userService;

    @RequestMapping("/show") //映射路径
    @ResponseBody  //返回值直接输出
    public String showName(){ //如果没有 @ResponseBody 返回是跳转的页面了哦！
     return userService.getUserName();
    }
}

（5）编写spring配置文件

在src/java/resources下创建springmvc.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:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    
	<mvc:annotation-driven >
		<mvc:message-converters register-defaults="false">
			<!--springmvc转换器返回值为字符串-->
			<bean class="org.springframework.http.converter.StringHttpMessageConverter">  
				<constructor-arg value="UTF-8" />
			</bean>  
		</mvc:message-converters>	
	</mvc:annotation-driven>

	<!--消费方的名称-->
	<dubbo:application name="dubbox-web"/>
	<!--zookeeper服务IP及端口号-->
	<dubbo:registry address="zookeeper://192.168.25.128:2181"/>
	<!--扫描控制类-->
	<dubbo:annotation package="com.hlx.demo.controller"/>

</beans>

（6）测试运行

先启动zookeeper服务哦!