后台服务系统之编写服务消费方实现
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后台服务系统之编写服务消费方实现
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/xsd/maven-4.0.0.xsd"><parent><artifactId>learn-dubbo</artifactId><groupId>cn.learn.dubbo</groupId><version>1.0-SNAPSHOT</version></parent><modelVersion>4.0.0</modelVersion><artifactId>learn-dubbo-consumer</artifactId><dependencies><!--添加springboot依賴，非web項目--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter</artifactId></dependency><dependency><groupId>org.apache.zookeeper</groupId><artifactId>zookeeper</artifactId><version>3.4.13</version></dependency><dependency><groupId>com.github.sgroschupf</groupId><artifactId>zkclient</artifactId><version>0.1</version></dependency><!--引入service的依賴--><dependency><groupId>cn.learn.dubbo</groupId><artifactId>learn-dubbo-service</artifactId><version>1.0-SNAPSHOT</version></dependency></dependencies></project>
package cn.learn.dubbo;import cn.learn.dubbo.pojo.User;
import cn.learn.dubbo.service.UserService;
import com.alibaba.dubbo.config.annotation.Reference;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;import java.util.List;@RunWith(SpringRunner.class)
@SpringBootTest
public class UserServiceTest {@Reference(version = "1.0.0", loadbalance = "roundrobin")private UserService userService;@Testpublic void testQueryAll() {for (int i = 0; i < 100; i++) {System.out.println("開始調用遠程服務 >>>>>" + i);List<User> users = this.userService.queryAll();for (User user : users) {System.out.println(user);}try {Thread.sleep(1000);} catch (InterruptedException e) {e.printStackTrace();}}}}
package cn.learn.dubbo.service;import cn.learn.dubbo.pojo.User;import java.util.List;public interface UserService {/*** 查詢所有的用戶數據** @return*/List<User> queryAll();}
package cn.learn.dubbo.service.impl;import java.util.ArrayList;
import java.util.List;import cn.learn.dubbo.pojo.User;
import cn.learn.dubbo.service.UserService;
import com.alibaba.dubbo.config.annotation.Service;@Service(version = "${dubbo.service.version}") //聲明這是一個dubbo服務
public class UserServiceImpl implements UserService {/*** 實現查詢，這里做模擬實現，不做具體的數據庫查詢*/public List<User> queryAll() {List<User> list = new ArrayList<User>();for (int i = 0; i < 10; i++) {User user = new User();user.setAge(10 + i);user.setId(Long.valueOf(i + 1));user.setPassword("123456");user.setUsername("username_" + i);list.add(user);}System.out.println("---------Service 3------------");return list;}}
# Spring boot application
spring.application.name = learn-dubbo-consumer
server.port = 9091# 應用名稱
dubbo.application.name = dubbo-consumer-demo# zk注冊中心
dubbo.registry.address = zookeeper://localhost:2181
dubbo.registry.client = zkclient
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