注：此项目使用了Zookeeper组件。

一、工程目录结构

二、创建工程项目

1、创建接口工程（cw-dubbo-api）

此工程就是一个maven工程。

（1）pom.xml

<?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>SpringBootDubboDemo</artifactId><groupId>cw-dubbo-demo</groupId><version>1.0.0</version></parent><modelVersion>4.0.0</modelVersion><artifactId>cw-dubbo-api</artifactId><properties><maven.compiler.source>8</maven.compiler.source><maven.compiler.target>8</maven.compiler.target></properties></project>

（2）创建接口类（LoginService）

package com.cw.dubbo.api;public interface LoginService {String login(String name, String pwd);
}

2、创建服务提供者工程（cw-dubbo-provider）

该工程是一个SpringBoot工程。

（1）pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>cw-dubbo-demo</groupId><artifactId>cw-dubbo-provider</artifactId><version>1.0.0</version><name>cw-dubbo-provider</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>cw-dubbo-demo</groupId><artifactId>cw-dubbo-api</artifactId><version>1.0.0</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--引入springboot整合dubbo的jar包--><dependency><groupId>com.alibaba.boot</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>0.2.0</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

（2）application.properties

server.port=8078# dubbo项目名
dubbo.application.name=cw-dubbo-providor# 注册中心地址
dubbo.registry.address=127.0.0.1:2181
# 指定注册中心为zookeeper
dubbo.registry.protocol=zookeeper# 指定通信协议
dubbo.protocol.name=dubbo
dubbo.protocol.port=20880
# 
dubbo.consumer.timeout=300000
dubbo.provider.timeout=300000# 连接监控中心，去注册中心直接发现，不配地址
dubbo.monitor.protocol=registry

（3）主类（CwDubboProviderApplication）

package com.cw.dubbo.provider;import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@EnableDubbo
@SpringBootApplication
public class CwDubboProviderApplication {public static void main(String[] args) {SpringApplication.run(CwDubboProviderApplication.class, args);}}

（4）LoginServiceImpl

package com.cw.dubbo.provider;import com.alibaba.dubbo.config.annotation.Service;
import com.cw.dubbo.api.LoginService;@Service
public class LoginServiceImpl implements LoginService {@Overridepublic String login(String name, String pwd) {return "name = " + name + ", pwd = " + pwd;}
}

3、创建服务调用者工程（cw-dubbo-consumer）

该工程是一个SpringBoot工程。

（1）pom.xml

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.4.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>cw-dubbo-demo</groupId><artifactId>cw-dubbo-consumer</artifactId><version>1.0.0</version><name>cw-dubbo-consumer</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>cw-dubbo-demo</groupId><artifactId>cw-dubbo-api</artifactId><version>1.0.0</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><!--引入springboot整合dubbo的jar包--><dependency><groupId>com.alibaba.boot</groupId><artifactId>dubbo-spring-boot-starter</artifactId><version>0.2.0</version></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

（2）application.properties

server.port=8079#应用名称
dubbo.application.name=cw-dubbo-consumer#注册中心地址(可以直接全地址)
dubbo.registry.address=zookeeper://127.0.0.1:2181dubbo.consumer.timeout=300000
dubbo.provider.timeout=300000#在注册中心找监控
dubbo.monitor.protocol=registry

（3）主类（CwDubboConsumerApplication）

package com.cw.dubbo.consumer;import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@EnableDubbo
@SpringBootApplication
public class CwDubboConsumerApplication {public static void main(String[] args) {SpringApplication.run(CwDubboConsumerApplication.class, args);}}

（4）LoginController

package com.cw.dubbo.consumer;import com.alibaba.dubbo.config.annotation.Reference;
import com.cw.dubbo.api.LoginService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;@RestController
public class LoginController {@Referenceprivate LoginService loginService;@RequestMapping(value = "/login", method = RequestMethod.GET)public String login(@RequestParam(name = "name") String name,@RequestParam(name = "pwd") String pwd){long start = System.currentTimeMillis();String str = loginService.login(name, pwd);long end = System.currentTimeMillis();return "duration = " + (end - start) + "ms, " + str;}
}

三、测试

先启动 cw-dubbo-provider 工程，然后在启动 cw-dubbo-consumer 工程。

启动成功后，在浏览器访问：http://localhost:8079/login?name=admin&pwd=123456

出现如下界面说明远程Dubbo调用成功。