使用框架：
- jdk 1.8
- springboot-2.1.3
- dubbo-2.6
- spring-data-jpa-2.1.5
一、开发dubbo服务接口：
按照Dubbo官方开发建议，创建一个接口项目，该项目只定义接口和model类；
1、创建springboot工程 spring-boot-demo-dubbo-interface
坐标：
<groupId>com.example</groupId>
<artifactId>spring-boot-demo-dubbo-interface</artifactId>
<version>0.0.1-SNAPSHOT</version>添加spring-data-jpa 依赖：
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>2、创建model
package com.example.demo.model;
@Entity
public class User implements Serializable{
private static final long serialVersionUID = 1L;
@Id @GeneratedValue
private long id;
private String userName;
private String password;
private int age;
public long getId() {
return id;
}
//省略set get 方法3、创建接口：
package com.example.demo.service;
import com.example.demo.model.User;
public interface UserService {
public void save(User user);
public String sayHello(String word);
}4、使用命令 clean install 打包安装到maven仓库。
阿里巴巴提供的dubbo集成springboot开源项目；
参考文档：
https://github.com/apache/dubbo-spring-boot-project/blob/0.2.x/README_CN.md
本工程采用该项目的jar包进行继承：
<dependency>
<groupId>com.alibaba.boot</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>0.2.0</version>
</dependency>二、开发dubbo服务提供者:
1、创建一个Springboot项目spring-boot-demo-dubbo-provider并配置好相关的依赖；
pom.xml
<dependencies>
<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>
<!-- 加入springboot与dubbo集成的起步依赖 -->
<dependency>
<groupId>com.alibaba.boot</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>0.2.0</version>
</dependency>
<!-- 由于使用了zookeeper作为注册中心，则需要加入zookeeper的客户端jar包： -->
<dependency>
<groupId>com.101tec</groupId>
<artifactId>zkclient</artifactId>
<version>0.10</version>
</dependency>
<!-- spring-data-jpa -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- 添加接口服务 -->
<dependency>
<groupId>com.example</groupId>
<artifactId>spring-boot-demo-dubbo-interface</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
</dependencies>2、在Springboot的核心配置文件application.properties中配置dubbo的信息：
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.properties.hibernate.hbm2ddl.auto=create
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.properties.hibernate.format_sql=true
spring.jpa.show-sql=true
# 访问端口
server.port=8080
# dubbo配置
dubbo.application.name=springboot-dubbo-provider
dubbo.registry.address=zookeeper://192.168.146.128:21813、开发编写Dubbo的接口实现类：
package com.example.demo.service;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.alibaba.dubbo.config.annotation.Service;
import com.example.demo.model.User;
import com.example.demo.repository.UserRepository;
@Component //注册为spring bean
@Service // 这注解是dubbo提供的
public class UserServiceImpl implements UserService {
@Autowired
private UserRepository userRepository;
@Override
public void save(User user) {
userRepository.save(user);
}
@Override
public String sayHello(String word) {
return word;
}
}4、入口main程序启动Dubbo服务提供者：添加注解 @EnableDubbo
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
@SpringBootApplication
@EnableDubbo
public class SpringBootDemoDubboProviderApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDemoDubboProviderApplication.class, args);
}
}启动main ，服务发布到zookeeper 注册中心。
三、开发dubbo服务消费者：
1、创建一个Springboot项目spring-boot-demo-dubbo-consumer并配置好相关的依赖；
2、加入springboot与dubbo集成的起步依赖：(pom.xml 配置同上)
注意： 服务提供者 和 消费者都要配置 服务接口依赖
3、在Springboot的核心配置文件application.properties中配置dubbo的信息：
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/test?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=true
spring.datasource.username=root
spring.datasource.password=root
# WEB\u670D\u52A1\u7AEF\u53E3
server.port=8081
# dubbo\u914D\u7F6E
dubbo.application.name=springboot-dubbo-consumer
dubbo.registry.address=zookeeper://192.168.146.128:2181 4、编写一个Controller类，调用远程的Dubbo服务：
package com.example.demo.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import com.alibaba.dubbo.config.annotation.Reference;
import com.example.demo.model.User;
import com.example.demo.service.UserService;
@RestController
public class UserController {
@Reference //该注解是dubbo提供的
private UserService userService;
@RequestMapping("/say")
public String sayHello(String name) {
return userService.sayHello(name);
}
@RequestMapping("/save")
public void save() {
User u = new User();
u.setAge(20);
u.setPassword("123");
u.setUserName("zheng");
userService.save(u);
}
}5、启动类添加 开启dubbo 注解 @EnableDubbo
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
@SpringBootApplication
@EnableDubbo
public class SpringBootDemoDubboConsumerApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDemoDubboConsumerApplication.class, args);
}
}6、启动main方法。
7、调用远程接口：
http://localhost:8081/say?name=hello
一个SpringBoot基于Dubbo的服务接口开发完成。
原文地址：https://blog.51cto.com/14230003/2406570
时间： 2024-08-30 01:05:06