SpringBoot整合Dubbo案例-创新互联
使用框架:
让客户满意是我们工作的目标,不断超越客户的期望值来自于我们对这个行业的热爱。我们立志把好的技术通过有效、简单的方式提供给客户,将通过不懈努力成为客户在信息化领域值得信任、有价值的长期合作伙伴,公司提供的服务项目有:域名申请、网络空间、营销软件、网站建设、朝天网站维护、网站推广。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:
com.example
spring-boot-demo-dubbo-interface
0.0.1-SNAPSHOT
添加spring-data-jpa 依赖:
org.springframework.boot
spring-boot-starter-data-jpa
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:
com.alibaba.boot
dubbo-spring-boot-starter
0.2.0
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
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-starter-test
test
com.alibaba.boot
dubbo-spring-boot-starter
0.2.0
com.101tec
zkclient
0.10
org.springframework.boot
spring-boot-starter-data-jpa
mysql
mysql-connector-java
runtime
com.example
spring-boot-demo-dubbo-interface
0.0.1-SNAPSHOT
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://192.168.146.128:2181
3、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。
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