springboot+dubbo+nacos整合_springboot dubbo nacos

一，创建一个springboot项目

二，创建consumer-server和provider-server

provider-server

1,引入maven坐标

<!-- nacos服务注册发现 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.2.RELEASE</version>
        </dependency>
        <!-- dubbo依赖 -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>com.fan</groupId>
            <artifactId>provider-server</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

1.创建service

public interface HelloService {
    String sayHello(String name);
}

1.2实现

public class HelloServiceimpl implements HelloService{
    @Override
    public String sayHello(String name) {
        return "张三"+name;
    }
}

1.3application.properties

server.port=8080
spring.application.name=dubbo-demo-provider
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
dubbo.protocol.name=dubbo
dubbo.protocol.port=-1
dubbo.registry.address=nacos://127.0.0.1:8848
dubbo.application.name=dubbo-demo-provider
dubbo.consumer.check=false

consumer-server

1.引入maven坐标

<!-- nacos服务注册发现 -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.2.RELEASE</version>
        </dependency>
        <!-- dubbo依赖 -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>com.fan</groupId>
            <artifactId>provider-server</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>
 
        <dependency>
            <groupId>com.fan</groupId>
            <artifactId>provider-server</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

2创建controller

@RestController
public class MainController
{
    @DubboReference
    private HelloService helloService;
    @GetMapping("/")
    public String index()
    {
        return helloService.sayHello("dubbo");
    }
}

3application.properties

server.port=9090
spring.application.name=dubbo-demo-consumer
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
dubbo.protocol.name=dubbo
dubbo.protocol.port=-1
dubbo.registry.address=nacos://127.0.0.1:8848
dubbo.application.name=dubbo-demo-consumer
dubbo.consumer.check=false

nacos启动后启动项目

然后访问9090端口发现报错

在provider-server启动类加上@EnableDubbo 重新启动查看 还是报错检查发现HelloServiceimpl中忘记了@DubboService 加上重新启动测试

完成

三，配置文件说明

server.port=8080 #应用端口
spring.application.name=dubbo-demo-provider #服务名称
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848 #将服务注册到nacos
dubbo.protocol.name=dubbo #使用协议
dubbo.protocol.port=-1 #调用协议地址
dubbo.registry.address=nacos://127.0.0.1:8848 #dubbo注册中心
dubbo.application.name=dubbo-demo-provider #dubbo服务名称
dubbo.consumer.check=false #dubbo启动时检查

前面使用了spring-cloud-starter-alibaba-nacos-discovery的jar

也可以使用。流程也是一样的

 <!--dubbo和nacos-->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>2.7.8</version>
        </dependency>
 
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-nacos</artifactId>
            <version>2.7.8</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-client</artifactId>
            <version>1.1.4</version>
        </dependency>

注意

dubbo.protocol.port=20881

这个端口有一样的应用会启动不起来