目前互聯網公司,大部分項目都是基於分佈式,一個項目被拆分紅幾個小項目,這些小項目會分別部署在不一樣的計算機上面,這個叫作微服務。當一臺計算機的程序須要調用另外一臺計算機代碼的時候,就涉及遠程調用。此時dubbo就粉末登場了。java
idea新建工程後,刪除src文件夾,而後在gradle文件中輸入mysql
buildscript { repositories { maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' } mavenCentral() } dependencies { classpath 'org.springframework.boot:spring-boot-gradle-plugin:1.5.21.RELEASE' } } plugins { id 'java' } apply plugin: 'org.springframework.boot' apply plugin: 'war' group 'com.demoMuty' version '1.0-SNAPSHOT' sourceCompatibility = 1.8 repositories { maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' } mavenCentral() } dependencies { compile 'org.springframework.boot:spring-boot-starter-mail' compile 'org.springframework.boot:spring-boot-starter-thymeleaf' compile 'org.springframework.boot:spring-boot-starter-web' compile 'org.mybatis.spring.boot:mybatis-spring-boot-starter:1.3.4' compile 'com.alibaba.boot:dubbo-spring-boot-starter:0.1.0' compile 'com.101tec:zkclient:0.10' // developmentOnly 'org.springframework.boot:spring-boot-devtools' runtime 'mysql:mysql-connector-java' compile("com.baomidou:mybatis-plus-boot-starter:3.1.0") compile("com.baomidou:mybatis-plus-generator:3.1.1") compileOnly 'org.projectlombok:lombok' testCompile 'org.springframework.boot:spring-boot-starter-test' }
如圖所示
boolean做爲父工程,而後再見三個模塊
git
booleanone做爲父模塊 booleanteo做爲服務者模塊 booleanthree做爲消費者模塊github
而後在每一個模塊新建com.test包,在包下新建啓動類
web
@SpringBootApplication public class BaseApplication extends SpringBootServletInitializer { }
而後在每一個模塊的gradle文件中引入上面的依賴,而後在消費者模塊和生產者模塊的依賴中加入父模塊依賴,如圖spring
而後在booleantwo的生產者模塊的resource資源文件中加入dubbo文件sql
<?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 "> <!-- 提供方應用信息,用於計算依賴關係 --> <dubbo:application name="hello-world-app"/> <!-- 使用multicast廣播註冊中心暴露服務地址 --> <dubbo:registry address="zookeeper://localhost:2181"/> <!-- 用dubbo協議在20880端口暴露服務 --> <dubbo:protocol name="dubbo" port="20880"/> <!-- 聲明須要暴露的服務接口 --> <dubbo:service interface="com.test1.provider.DemoService" ref="demoService" group="hello-world-app" version="1.0.0" /> </beans>
在啓動類中加入註解tomcat
@ImportResource({"classpath:dubbo.xml"})
而後在booleantwo的消費者模塊的resource資源文件中加入dubbo文件mybatis
<?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 "> <!-- 提供方應用信息,用於計算依賴關係 --> <dubbo:application name="hello-world-app"/> <!-- 使用multicast廣播註冊中心暴露服務地址 --> <dubbo:registry address="zookeeper://localhost:2181"/> <!-- 生成遠程服務代理,能夠和本地bean同樣使用demoService --> <dubbo:reference interface="com.test1.provider.DemoService" group="hello-world-app" version="1.0.0" id="demoService"/> </beans>
在啓動類中加入註解app
@ImportResource({"classpath:dubbo.xml"})
在父模塊中寫dubbo接口
package com.test1.provider; /** * @author buer * create 2019/7/2 22:13 * description */ public interface DemoService { String sayHello(String name); }
而後在生產者模塊中寫dubbo實現類
package com.test1.dubbo; import com.test1.provider.DemoService; import org.springframework.stereotype.Service; /** * @author buer * create 2019/7/2 22:14 * description */ @Service("demoService") public class DemoServiceImpl implements DemoService { @Override public String sayHello(String name) { return "hello,dubbo"+name; } }
而後在消費者模塊中寫dubbo調用
package com.test1.controller; import com.test1.provider.DemoService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; /** * @author boolean * Date: 2019/7/2 19:48 * description: */ @RestController public class he { @Autowired private DemoService demoService; @RequestMapping("/he") public String hello(){ return "he"; } @RequestMapping("/chen") public String hello1(){ return demoService.sayHello("chen"); } }
最後添加war包
打開zkServer.cmd
啓動信息
若是啓動有亂碼的話
回到idea軟件 打開tomcat的設置 找到VM options:,而後輸入
-Dfile.encoding=UTF-8
代碼地址:
https://github.com/blackdogss/HelloWorld.git