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  • (五)消费Dubbo服务

    前面我们搞了发布Dubbo服务,发布的服务就是用来消费的,所以我们这里来调用服务,消费下;

    创建maven项目 dubbo-demo-consumer

    pom.xml配置下:

     1 <dependencies>
     2     <dependency>
     3         <groupId>com.alibaba</groupId>
     4         <artifactId>dubbo</artifactId>
     5         <version>2.6.0</version>
     6     </dependency>
     7     <dependency>
     8         <groupId>com.101tec</groupId>
     9         <artifactId>zkclient</artifactId>
    10         <version>0.10</version>
    11     </dependency>
    12     <dependency>
    13         <groupId>org.apache.curator</groupId>
    14         <artifactId>curator-framework</artifactId>
    15         <version>4.0.1</version>
    16     </dependency>
    17     <dependency>
    18         <groupId>com.alibaba</groupId>
    19         <artifactId>fastjson</artifactId>
    20         <version>1.2.46</version>
    21     </dependency>
    22     <dependency>
    23         <groupId>log4j</groupId>
    24         <artifactId>log4j</artifactId>
    25         <version>1.2.17</version>
    26     </dependency>
    27     <dependency>
    28         <groupId>org.slf4j</groupId>
    29         <artifactId>slf4j-api</artifactId>
    30         <version>1.7.25</version>
    31     </dependency>
    32     <dependency>
    33         <groupId>org.apache.commons</groupId>
    34         <artifactId>commons-lang3</artifactId>
    35         <version>3.4</version>
    36     </dependency>
    37     <dependency>
    38         <groupId>io.netty</groupId>
    39         <artifactId>netty-all</artifactId>
    40         <version>4.0.35.Final</version>
    41     </dependency>
    42 </dependencies>

    再搞个dubbo-demo-consumer.xml

     1 <?xml version="1.0" encoding="UTF-8"?>
     2 <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     3        xmlns:dubbo="http://code.alibabatech.com/schema/dubbo"
     4        xmlns="http://www.springframework.org/schema/beans"
     5        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
     6        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd">
     7 
     8     <!-- 消费方应用名,用于计算依赖关系,不是匹配条件,不要与提供方一样 -->
     9     <dubbo:application name="demo-consumer"/>
    10 
    11     <!-- 使用zookeeper注册中心暴露服务地址 -->
    12     <dubbo:registry address="zookeeper://127.0.0.1:2181"/>
    13 
    14     <!-- 生成远程服务代理,可以和本地bean一样使用demoProviderService  check属性,启动的时候是否检查 一般设置为false 启动的时候不检查-->
    15     <dubbo:reference id="demoProviderService" check="false" interface="com.wishwzp.service.DemoProviderService"/>
    16 
    17 </beans>

    创建接口DemoProviderService.java

     1 package com.wishwzp.service;
     2 
     3 /**
     4  * 服务提供者接口
     5  * @author Administrator
     6  *
     7  */
     8 public interface DemoProviderService {
     9 
    10     public String sayHello(String name);
    11 }

    搞个测试类ConsumerTest:

     1 import com.wishwzp.service.DemoProviderService;
     2 import org.springframework.context.support.ClassPathXmlApplicationContext;
     3 
     4 import java.io.IOException;
     5 
     6 public class ConsumerTest {
     7 
     8     public static void main(String[] args) {
     9         ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext(new String[]{"dubbo-demo-consumer.xml"});
    10         context.start();
    11         DemoProviderService demoProviderService=(DemoProviderService) context.getBean("demoProviderService");
    12         String result=demoProviderService.sayHello("你好");
    13         System.out.println("远程调用结果:"+result);
    14         try {
    15             System.in.read();
    16         } catch (IOException e) {
    17             // TODO Auto-generated catch block
    18             e.printStackTrace();
    19         }
    20         context.close();
    21     }
    22 }

    运行结果 远程调用结果:服务001

    说明远程调用成功;

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  • 原文地址:https://www.cnblogs.com/wishwzp/p/9441106.html
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