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Springboot整合dubbo+zookeeper

nlbz 2021-04-28 11:14 原文

1.创建一个springboot项目dubbo_springboot（删除一些没必要的文件）

2.创建module

​ 一、dubbo_comsumer(springboot)

​ 二、dubbo_interface(maven)

​ 三、dubbo_provider(springboot)

3.编写公共接口

package com.example;

public interface UserService {
    public String getUser(Long userId);
}

4.编写生产者dubbo_provider

###### 一、填加依赖

1.继承公共接口
<dependency>
	<artifactId>dubbo_interface</artifactId>
	<groupId>com.example</groupId>
	<version>0.0.1-SNAPSHOT</version>
</dependency>
2.添加dubbo和zookeeper客户端依赖
<dependency>
	<groupId>com.alibaba.boot</groupId>
	<artifactId>dubbo-spring-boot-starter</artifactId>
	<version>0.2.0</version>
</dependency>
<!-- zookeeper客户端 2.6以前的版本使用zkclient，dubbo 2.6+使用curator-->
<!--
<dependency>	
	<groupId>com.101tec</groupId>
	<artifactId>zkclient</artifactId>
	<version>0.10</version>
</dependency>
-->
<dependency>
	<groupId>org.apache.curator</groupId>
	<artifactId>curator-framework</artifactId>
	<version>2.12.0</version>
</dependency>
二、编写公共接口
package com.example.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.example.UserService;

@Service
public class UserServiceImpl implements UserService {
    @Override
    public String getUser(Long userId) {
        System.out.println("###会员服务接受参数开始userId:" + userId);
        if (userId == 1) {
            return "小明";
        }
        if (userId == 2) {
            return "小暗";
        }
        System.out.println("###会员服务接受参数结束###");
        return "未找到用户...";
    }
}

​ 注意：@Service（com.alibaba.dubbo.config.annotation.Service）

三、编写yml文件
server:
  port: 7003
dubbo:
  application:
     name: dubbo-provider    #服务名称
  registry:
    protocol: zookeeper     #注册中心的协议
    address: 127.0.0.1:2181 #注册中心的地址
  protocol:
      name: dubbo             #通信协议
      port: 20880             #通信端口
  monitor:
      protocol: registry
四、启动类填加@EnableDubbo注解
package com.example;

import com.alibaba.dubbo.config.spring.context.annotation.EnableDubbo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@EnableDubbo
@SpringBootApplication
public class DubboProvideApplication {

	public static void main(String[] args) {
		SpringApplication.run(DubboProvideApplication.class, args);
	}
}

五.编写消费者dubbo_consumer

###### 一、填加依赖

1.继承公共接口
<dependency>
	<artifactId>dubbo_interface</artifactId>
	<groupId>com.example</groupId>
	<version>0.0.1-SNAPSHOT</version>
</dependency>
2.添加dubbo和zookeeper客户端依赖
<dependency>
	<groupId>com.alibaba.boot</groupId>
	<artifactId>dubbo-spring-boot-starter</artifactId>
	<version>0.2.0</version>
</dependency>
<!-- zookeeper客户端 2.6以前的版本使用zkclient，dubbo 2.6+使用curator-->
<!--
<dependency>	
	<groupId>com.101tec</groupId>
	<artifactId>zkclient</artifactId>
	<version>0.10</version>
</dependency>
-->
<dependency>
	<groupId>org.apache.curator</groupId>
	<artifactId>curator-framework</artifactId>
	<version>2.12.0</version>
</dependency>
二、编写CallUserService实现类
package com.example.service;

import com.alibaba.dubbo.config.annotation.Reference;
import com.example.UserService;
import org.springframework.stereotype.Service;

@Service
public class CallUserService {
    @Reference
    private UserService userService;
    public String getUser(Long userId){
        return userService.getUser(userId);
    };
}

​ 注意：@Service（org.springframework.stereotype.Service）

​ @Reference(import com.alibaba.dubbo.config.annotation.Reference)

三、编写controller
import com.example.service.CallUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class CallController {
    @Autowired
    private CallUserService callUserService;
    @GetMapping("/get")
    public String get(){
        return callUserService.getUser(1l);
    }
}
四、编写yml文件
server:
  port: 7004
dubbo:
  application:
    name: dubbo-provider    #服务名称
  registry:
    protocol: zookeeper     #注册中心的协议
    address: 127.0.0.1:2181 #注册中心的地址
  monitor:
    protocol: registry

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