• springboot 整合 dubbo 的简单实现

    文章目录

    springboot 整合 dubbo 的简单实现

    dubbo 简介

    Apache Dubbo 是一个高性能、基于 Java 的开源 RPC 框架。具备如下特征：

    • 基于透明接口的 RPC
    • 智能负载均衡
    • 自动服务注册和发现
    • 高扩展性
    • 运行时流量路由
    • 可视化服务治理

    在这里插入图片描述
    如图所示，dubbo 架构由以下角色构成：

    • Provider 服务提供者： 暴露服务的服务提供方。
    • Consumer 服务消费者： 调用远程服务的服务消费方
    • Registry 注册中心： 服务注册与发现的注册中心
    • Monitor 监控中心： 统计服务的调用次调和调用时间的监控中心

    springboot 整合 dubbo

    common 模块

    common 模块结构

    在这里插入图片描述

    pom 文件

    <?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.dubbo</groupId>
    <artifactId>common</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>common</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <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.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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    ProviderService 接口类

    package com.dubbo.common.service;

/**
 * @Author 听秋
 * @Description //TODO
 * @Date 14:47 2022/6/24
 * @Param
 * @return
 **/
public interface ProviderService {

    /**
     * 发布消息
     * @param message
     * @return
     */
    String sendMessage(String message);

}

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    provider 模块

    provider 模块结构

    在这里插入图片描述

    pom 文件

    <?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.dubbo</groupId>
    <artifactId>provider</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>provider</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <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>

        <!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo-spring-boot-starter -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.9</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo-dependencies-zookeeper -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-zookeeper</artifactId>
            <version>3.0.9</version>
            <type>pom</type>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.zookeeper/zookeeper -->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.8.0</version>
        </dependency>

        <dependency>
            <groupId>com.dubbo</groupId>
            <artifactId>common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.24</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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    application.yml 文件

    server:
  port: 8081

dubbo:
  application:
    name: dubbo-provider
  registry:
    address: zookeeper://127.0.0.1:2181
  #扫描service
  scan:
    base-packages: com.dubbo.provider.service.impl
  # 超时调用：dubbo 调用默认 1 秒钟超时。
  # 建议由服务提供方设置超时，因为一个方法需要执行多长时间，服务提供方更清楚。
  provider:
    timeout: 3000
  protocol:
    name: dubbo
    port: 20881

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    ProviderServiceImpl 实现类

    package com.dubbo.provider.service.impl;

import com.dubbo.common.service.ProviderService;
import lombok.extern.slf4j.Slf4j;
import org.apache.dubbo.config.annotation.DubboService;

/**
 * @ClassName ProviderServiceImpl
 * @Description TODO
 * @Author 听秋
 * @Date 2022/6/24 14:50
 * @Version 1.0
 **/
@DubboService
@Slf4j
public class ProviderServiceImpl implements ProviderService {


    /**
     * 发布消息
     *
     * @param message
     * @return
     */
    @Override
    public String sendMessage(String message) {
        log.info("发送消息：" + message);
        return "发送消息：" + message;
    }
}

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    启动类

    package com.dubbo.provider;

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

/**
 * @Author 听秋
 * @Description //TODO
 * @Date 20:01 2022/6/29
 * @Param
 * @return
 **/
@SpringBootApplication
@EnableDubbo
public class ProviderApplication {

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

}

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    consumer 模块

    consumer 模块结构

    在这里插入图片描述

    pom 文件

    <?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.7.1</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.dubbo</groupId>
    <artifactId>provider</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>consumer</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <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>

        <!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo-spring-boot-starter -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.9</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo-dependencies-zookeeper -->
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-dependencies-zookeeper</artifactId>
            <version>3.0.9</version>
            <type>pom</type>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.zookeeper/zookeeper -->
        <dependency>
            <groupId>org.apache.zookeeper</groupId>
            <artifactId>zookeeper</artifactId>
            <version>3.8.0</version>
        </dependency>

        <dependency>
            <groupId>com.dubbo</groupId>
            <artifactId>common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.24</version>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

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    application.yml 文件

    server:
  port: 8082

dubbo:
  application:
    name: dubbo-consumer
  registry:
    address: zookeeper://127.0.0.1:2181
  protocol:
    name: dubbo
    port: 20881

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    controller 类

    package com.dubbo.consumer.controller;

import com.dubbo.common.service.ProviderService;
import org.apache.dubbo.config.annotation.DubboReference;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * @ClassName ConsumerController
 * @Description TODO
 * @Author 听秋
 * @Date 2022/6/28 10:17
 * @Version 1.0
 **/
@RestController
public class ConsumerController {

    @DubboReference
    private ProviderService providerService;

    @GetMapping("/receive")
    public Object receive() {
        return providerService.sendMessage("调用provider");
    }

}

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    启动类

    package com.dubbo.consumer;

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

/**
 * @Author 听秋
 * @Description //TODO
 * @Date 20:08 2022/6/29
 * @Param 
 * @return 
 **/
@SpringBootApplication
@EnableDubbo
public class ConsumerApplication {

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

}

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    dubbo-admin

    dubbo-admin 的安装请参考 http://t.csdn.cn/CqKPl

    启动 provider 项目，可以看到 ProviderService 注册成功，如下图所示：

    在这里插入图片描述

    验证

    启动 consumer 项目，通过 postman 调用 http://localhost:8082/receive 接口，调用结果如下图所示：

    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/TQ20160412/article/details/125528054