Dubbo3.0.7+Nacos2.0.3整合服务注册及发现

news2024/11/25 22:15:34

Dubbo3的新特性和修改这里就不再赘述了，个人认为主要是注册的颗粒度的改变，把之前的接口级改成了应用级，减少了注册列表的数量更易于维护。

服务端：

pom.xml

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>3.0.7</version>
        </dependency>

        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>2.0.4</version>
        </dependency>
</dependencies>

启动服务类：

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

/**
 * Hello world!
 *
 */
@SpringBootApplication
@EnableDubbo(scanBasePackages = "cn.com.auth.service")
public class App 
{
    public static void main( String[] args )
    {
        SpringApplication.run(App.class, args);
    }
}

配置文件application.properties

spring.application.name=user
server.port=9989
dubbo.application.name=auth
dubbo.protocol.id=dubbo
dubbo.protocol.name=dubbo
dubbo.protocol.port=-1
dubbo.registry.address=nacos://localhost:8848
dubbo.registry.register-mode=instance

编写接口作为服务service

package cn.com.auth.api;
public interface AuthService {

    public String call(String str);
    
}

实现类

package cn.com.auth.service;

import cn.com.auth.api.AuthService;
import org.apache.dubbo.config.annotation.DubboService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
@DubboService
public class AuthServiceImpl implements AuthService {

    private Logger logger = LoggerFactory.getLogger(AuthServiceImpl.class);

    @Override
    public String call(String str) {
        return "hello"+str;
    }
}

把接口类放在一个module下，打包上传私服，以供客户端引用

       <dependency>
            <groupId>cn.com.auth</groupId>
            <artifactId>auth_api</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

客户端：

pom.xml 这里需要把服务端的auth_api引入

<dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>org.apache.dubbo</groupId>
      <artifactId>dubbo</artifactId>
      <version>3.0.7</version>
    </dependency>

    <dependency>
      <groupId>com.alibaba.nacos</groupId>
      <artifactId>nacos-client</artifactId>
      <version>2.0.4</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>cn.com.auth</groupId>
      <artifactId>auth_api</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
  </dependencies>

服务启动类：

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

/**
 * Hello world!
 *
 */
@SpringBootApplication
@EnableDubbo
public class App 
{
    public static void main( String[] args )
    {

        SpringApplication.run(App.class, args);

    }
}

application.properties

spring.application.name=client
server.port=8080
dubbo.application.name=client
dubbo.protocol.id=dubbo
dubbo.protocol.name=dubbo
dubbo.cloud.subscribed-services=auth
dubbo.registry.address=nacos://localhost:8848?register-consumer-url=true

对外http服务Controller类，调用dubbo服务auth_api的接口

import cn.com.auth.api.AuthService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class CustomerController {
    @DubboReference
    AuthService service;



    @PostMapping("/call")
    public String call(){

        return  service.call("call");
    }
}

启动服务端和客户端，查看nacos注册情况