springboot2.0整合dubbo的示例代码

时间：2020-12-14 14:28:03|栏目：JAVA代码|点击：次

写在前面：

使用springboot作为web框架，方便开发许多，做分布式开发，dubbo又不可少，那么怎么整合在一起呢，

跟我学一遍，至少会用

注意，springboot2.0和springboot1.x与dubbo整合不一样，

1.环境

1.新建一个空的maven项目，作为父工程，新建moudle，，service（接口层，及实现层，没有具体分，），web（web层，springboot项目）

项目结构如下

父pom如下

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencyManagement>
    <dependencies>


      <dependency>
        <!-- Import dependency management from Spring Boot -->
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-dependencies</artifactId>
        <version>2.0.3.RELEASE</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
      <!--如果要把springboot工程打包成war执行，需要该jar-->
      <!--<dependency>-->
      <!--<groupId>org.springframework.boot</groupId>-->
      <!--<artifactId>spring-boot-legacy</artifactId>-->
      <!--<version>1.0.2.RELEASE</version>-->
      <!--</dependency>-->

      <dependency>
        <groupId>com.alibaba.boot</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>0.2.0</version>
      </dependency>

      <!--引入zookeeper的客户端工具-->
      <!-- https://mvnrepository.com/artifact/com.github.sgroschupf/zkclient -->
      <dependency>
        <groupId>com.github.sgroschupf</groupId>
        <artifactId>zkclient</artifactId>
        <version>0.1</version>
      </dependency>
    </dependencies>
  </dependencyManagement>

web层pom

 <dependencies>
    <dependency>
      <groupId>com.itzmn</groupId>
      <artifactId>dubbo-service</artifactId>
      <version>1.0-SNAPSHOT</version>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>com.alibaba.boot</groupId>
      <artifactId>dubbo-spring-boot-starter</artifactId>
    </dependency>

    <!--引入zookeeper的客户端工具-->
    <!-- https://mvnrepository.com/artifact/com.github.sgroschupf/zkclient -->
    <dependency>
      <groupId>com.github.sgroschupf</groupId>
      <artifactId>zkclient</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-test</artifactId>
      <scope>test</scope>
    </dependency>
  </dependencies>

service层

 <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <dependency>
      <groupId>com.alibaba.boot</groupId>
      <artifactId>dubbo-spring-boot-starter</artifactId>
    </dependency>

    <!--引入zookeeper的客户端工具-->
    <!-- https://mvnrepository.com/artifact/com.github.sgroschupf/zkclient -->
    <dependency>
      <groupId>com.github.sgroschupf</groupId>
      <artifactId>zkclient</artifactId>
    </dependency>
  </dependencies>

2.接口设计

在service模块新建接口，

接口实现类的注解，service一定是dubbo的注解

3.配置文件

# Spring boot application
spring.application.name = /springboot-dubbo
server.port = 9099
management.port = 9091

# Service version
demo.service.version = 1.0.0

# Base packages to scan Dubbo Components (e.g @Service , @Reference)
dubbo.scan.basePackages = com.itzmn.dubbo.service.impl

# Dubbo Config properties
## ApplicationConfig Bean
dubbo.application.id = springboot-dubbo
dubbo.application.name = springboot-dubbo

## ProtocolConfig Bean
dubbo.protocol.id = dubbo
dubbo.protocol.name = dubbo
dubbo.protocol.port = 20880

## RegistryConfig Bean
dubbo.registry.id = my-registry1
dubbo.registry.address = zookeeper://47.106.64.158:2181

在web层的配置文件中，配置，即可，前提，要先安装zookeeper，才能进行服务的注册，然后启动即可

4.消费者

配置

# Spring boot application
spring.application.name = dubbo-consumer-demo
server.port = 8080
management.port = 8081

# Service Version
demo.service.version = 1.0.0

# Dubbo Config properties
## ApplicationConfig Bean
dubbo.application.id = dubbo-consumer-demo
dubbo.application.name = dubbo-consumer-demo

## ProtocolConfig Bean
dubbo.protocol.id = dubbo
dubbo.protocol.name = dubbo
dubbo.protocol.port = 12345

只需将服务提供者的接口jar包引入，然后注入服务即可

注意，springboot2.0和springboot1.x与dubbo整合不一样，

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