springboot接入dubbo-nacos注册中心
 2020-12-19  308ad5b7b2bfcd4fac78d69fd6cf58f0 99+   8 分钟   1.2 k0次访问

springboot接入dubbo-nacos注册中心

springboot接入dubbo-nacos注册中心

项目结构：

pro-parent

parent.pom

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <artifactId>pro-parent</artifactId>
    <groupId>removeif.io.java</groupId>
    <version>1.0-SNAPSHOT</version>
    <modelVersion>4.0.0</modelVersion>
    <packaging>pom</packaging>
    <modules>
        <module>service-api</module>
        <module>service-provider</module>
        <module>service-consumer</module>
    </modules>
</project>

暴露服务接口api

service-api.pom

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>pro-parent</artifactId>
        <groupId>removeif.io.java</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>service-api</artifactId>
</project>

service-api.class

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package io.github.removeif.springboot.api;

import io.github.removeif.springboot.dto.UserDTO;

/**
 * 用户服务 RPC Service 接口
 */
public interface UserRpcService {

    /**
     * 根据指定用户编号，获得用户信息
     *
     * @param id 用户编号
     * @return 用户信息
     */
    UserDTO get(Integer id);

}

package io.github.removeif.springboot.dto;

import java.io.Serializable;

/**
 * 用户信息 DTO
 */
public class UserDTO implements Serializable {

    /**
     * 用户编号
     */
    private Integer id;
    /**
     * 昵称
     */
    private String name;
    /**
     * 性别
     */
    private Integer gender;

    public Integer getId() {
        return id;
    }

    public UserDTO setId(Integer id) {
        this.id = id;
        return this;
    }

    public String getName() {
        return name;
    }

    public UserDTO setName(String name) {
        this.name = name;
        return this;
    }

    public Integer getGender() {
        return gender;
    }

    public UserDTO setGender(Integer gender) {
        this.gender = gender;
        return this;
    }
}


服务提供方service-provider

service-provider.pom

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-provider</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <!-- 引入定义的 Dubbo API 接口 -->
        <dependency>
            <artifactId>service-api</artifactId>
            <groupId>removeif.io.java</groupId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!-- 引入 Spring Boot 依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <!-- Dubbo Spring Cloud Starter -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <!-- Spring Cloud Nacos Service Discovery -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>

    </dependencies>

</project>

service-provider.yaml

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spring:
  application:
    name: user-service-provider
# dubbo 配置项，对应 DubboConfigurationProperties 配置类
dubbo:
  # Dubbo 应用配置
  application:
    name: user-service-provider # 应用名
  # Dubbo 注册中心配
  registry:
    address: nacos://127.0.0.1:8848 # 注册中心地址。可以配置多注册中心，可见 http://dubbo.apache.org/zh-cn/docs/user/references/registry/introduction.html 文档。
    group: dev #分组 可用于环境隔离，不同分组不能调用
    parameters[namespace]: dev # 空间管理
  # Dubbo 服务提供者协议配置
  protocol:
    port: -1 # 协议端口。使用 -1 表示随机端口。
    name: dubbo # 使用 `dubbo://` 协议。更多协议，可见 http://dubbo.apache.org/zh-cn/docs/user/references/protocol/introduction.html 文档
  # Dubbo 服务提供者配置
  provider:
    timeout: 1000 # 【重要】远程服务调用超时时间，单位：毫秒。默认为 1000 毫秒，可以根据自己业务修改
    UserRpcService:
      version: 1.0.0
  # 配置扫描 Dubbo 自定义的 @Service 注解，暴露成 Dubbo 服务提供者
  scan:
    base-packages: io.github.removeif.springboot.service

group以及namespace对应nacos中结构：

service-provider.class

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package io.github.removeif.springboot.service;

import io.github.removeif.springboot.api.UserRpcService;
import io.github.removeif.springboot.dto.UserDTO;
import org.apache.dubbo.config.annotation.DubboService;

@DubboService(version = "${dubbo.provider.UserRpcService.version}")
public class UserRpcServiceImpl implements UserRpcService {

    @Override
    public UserDTO get(Integer id) {
        return new UserDTO().setId(id)
                .setName("没有昵称：" + id)
                .setGender(id % 2 + 1); // 1 - 男；2 - 女
    }

}


package io.github.removeif.springboot;

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

@SpringBootApplication
@EnableDubbo
public class ProviderApplication {

    public static void main(String[] args) {
        // 启动 Spring Boot 应用
        SpringApplication.run(ProviderApplication.class, args);
    }

}

消费方service-consumer

service-consumer.pom

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>service-consumer</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <!-- 引入定义的 Dubbo API 接口 -->
        <dependency>
            <artifactId>service-api</artifactId>
            <groupId>removeif.io.java</groupId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

        <!-- Dubbo Spring Cloud Starter -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-dubbo</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>

        <!-- 引入 Spring Boot 依赖 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>

        <!-- Spring Cloud Nacos Service Discovery -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
    </dependencies>

</project>

service-consumer.ymal

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spring:
  application:
    name: user-service-consumer
# dubbo 配置项，对应 DubboConfigurationProperties 配置类
dubbo:
  # Dubbo 应用配置
  application:
    name: user-service-consumer # 应用名
  # Dubbo 注册中心配置
  registry:
    address: nacos://127.0.0.1:8848 # 注册中心地址。可以配置多注册中心，可见 http://dubbo.apache.org/zh-cn/docs/user/references/registry/introduction.html 文档。
    group: dev #分组
    parameters[namespace]: dev # 空间管理
  # Dubbo 消费者配置
  consumer:
    timeout: 1000 # 【重要】远程服务调用超时时间，单位：毫秒。默认为 1000 毫秒，可以根据自己业务修改
    UserRpcService:
      version: 1.0.0
  protocol:
    port: -1
    name: dubbo

service-consumer.class

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package io.github.removeif.springboot;

import io.github.removeif.springboot.api.UserRpcService;
import io.github.removeif.springboot.dto.UserDTO;
import org.apache.dubbo.config.annotation.DubboReference;
import org.apache.dubbo.config.spring.context.annotation.EnableDubbo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.CommandLineRunner;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.stereotype.Component;

@SpringBootApplication
@EnableDubbo
public class ConsumerApplication {

    public static void main(String[] args) {
        // 启动 Spring Boot 应用
        ConfigurableApplicationContext context = SpringApplication.run(ConsumerApplication.class, args);
    }

    @Component
    public class UserRpcServiceTest implements CommandLineRunner {

        private final Logger logger = LoggerFactory.getLogger(getClass());

        @DubboReference(version = "${dubbo.consumer.UserRpcService.version}")
        private UserRpcService userRpcService;

        @Override
        public void run(String... args) throws Exception {
            UserDTO user = userRpcService.get(1);
            logger.info("[run][发起一次 Dubbo RPC 请求，获得用户为({})", user);
        }
    }
}

启动provider，在启动consumer后可以看到控制台

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2020-12-19 11:36:49.219  INFO 16272 --- [           main] c.a.c.n.registry.NacosServiceRegistry    : nacos registry, DEFAULT_GROUP user-service-consumer 192.168.88.1:20881 register finished
2020-12-19 11:36:49.228  INFO 16272 --- [           main] s.ConsumerApplication$UserRpcServiceTest : [run][发起一次 Dubbo RPC 请求，获得用户为(io.github.removeif.springboot.dto.UserDTO@79696332)
2020-12-19 11:36:49.231  INFO 16272 --- [           main] c.a.n.client.config.impl.ClientWorker    : [fixed-localhost_8848] [subscribe] user-service-consumer+DEFAULT_GROUP
2020-12-19 11:36:49.231  INFO 16272 --- [           main] c.a.nacos.client.config.impl.CacheData   : [fixed-localhost_8848] [add-listener] ok, tenant=, dataId=user-service-consumer, group=DEFAULT_GROUP, cnt=1

springboot接入dubbo-nacos注册中心

https://removeif.github.io/java/frame/springboot-dubbo-nacos-example.html

发布于

2020-12-19

更新于

2023-04-28

许可协议

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