springboot2.2.2集成dubbo的实现方法

程序员文章站 2022-07-02 09:26:25

最近在学习dubbo，想着作一些笔记，从来没有在csdn上面写过博客，今天献出第一次，哈哈，直接上代码一、创建父工程

最近在学习dubbo，想着作一些笔记，从来没有在csdn上面写过博客，今天献出第一次，哈哈，直接上代码

一、创建父工程

<?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">
  <modelversion>4.0.0</modelversion>
  <parent>
    <groupid>org.springframework.boot</groupid>
    <artifactid>spring-boot-starter-parent</artifactid>
    <version>2.2.2.release</version>
    <relativepath/>
  </parent>

  <groupid>com.dubbo</groupid>
  <artifactid>demo01</artifactid>
  <version>1.0.0</version>
  <packaging>pom</packaging>
  <description>spring boot2.x 整合 dubbo</description>

  <modules>
    <module>api</module>
    <module>provider</module>
    <module>consumer</module>
  </modules>

  <!--统一管理依赖版本-->
  <properties>
    <project.build.sourceencoding>utf-8</project.build.sourceencoding>
    <project.reporting.outputencoding>utf-8</project.reporting.outputencoding>
    <java.version>1.8</java.version>
    <dubbo.version>2.7.5</dubbo.version>
    <curator.version>4.2.0</curator.version>
    <!-- 连接zookeeper的依赖，我的zookeeper版本是3.4.14，感觉这个jar版本和zookeeper是大概保持一致的，但是引入3.4.14会报错，我试了下，从3.4.13开始就不行了 -->
    <zookeeper.version>3.4.12</zookeeper.version>
  </properties>

  <!--依赖定义-->
  <!--dependencymanagement 定义依赖版本号。子工程直接加依赖即可，不需要再次加版本号，便于统一维护版本号-->
  <dependencymanagement>
    <dependencies>
      <dependency>
        <groupid>org.apache.dubbo</groupid>
        <artifactid>dubbo-spring-boot-starter</artifactid>
        <version>${dubbo.version}</version>
      </dependency>
  <!-- zookeeper的api管理依赖 -->
      <dependency>
        <groupid>org.apache.curator</groupid>
        <artifactid>curator-recipes</artifactid>
        <version>${curator.version}</version>
      </dependency>
  <!-- zookeeper依赖 -->
      <dependency>
        <groupid>org.apache.zookeeper</groupid>
        <artifactid>zookeeper</artifactid>
        <version>${zookeeper.version}</version>
      </dependency>
    </dependencies>
  </dependencymanagement>

  <dependencies>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-devtools</artifactid>
      <scope>runtime</scope>
      <optional>true</optional>
    </dependency>
    <!-- 使用该依赖，idea需要安装插件，没有用过的自行百度一下吧 -->
    <dependency>
      <groupid>org.projectlombok</groupid>
      <artifactid>lombok</artifactid>
      <optional>true</optional>
    </dependency>
  </dependencies>
</project>

二、创建提供者与消费者共用的api

该模块没有什么好说的，提供者和消费者都需要使用的接口api，提供者和消费者都需要引入该模块

<?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>demo01</artifactid>
    <groupid>com.dubbo</groupid>
    <version>1.0.0</version>
  </parent>
  <modelversion>4.0.0</modelversion>

  <artifactid>api</artifactid>


</project>

// 注解都是lombok的，真的很方便
@data
@builder
@noargsconstructor
@allargsconstructor(access = accesslevel.private)
public class user implements serializable {
  private integer id;
  private string name;
  private integer age;
}

public interface userservice {
  user getuserbyid(integer id);
}

三、创建提供者

<?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>com.dubbo</groupid>
    <version>1.0.0</version>
    <artifactid>demo01</artifactid>
  </parent>

  <groupid>com.dubbo</groupid>
  <artifactid>provider</artifactid>
  <version>0.0.1-snapshot</version>
  <name>provider</name>
  <description>demo project for spring boot</description>

  <dependencies>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-web</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.dubbo</groupid>
      <artifactid>dubbo-spring-boot-starter</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.curator</groupid>
      <artifactid>curator-recipes</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.zookeeper</groupid>
      <artifactid>zookeeper</artifactid>
    </dependency>
    <!-- 导入公共接口依赖 -->
    <dependency>
      <groupid>com.dubbo</groupid>
      <artifactid>api</artifactid>
      <version>1.0.0</version>
    </dependency>

    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-test</artifactid>
      <scope>test</scope>
      <exclusions>
        <exclusion>
          <groupid>org.junit.vintage</groupid>
          <artifactid>junit-vintage-engine</artifactid>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-maven-plugin</artifactid>
      </plugin>
    </plugins>
  </build>

</project>

dubbo:
 application:
  # 应用名称
  name: user-provider
 protocol:
  # 协议名称
  name: dubbo
  # 协议端口
  port: 20880
 registry:
  # 注册中心地址
  address: zookeeper://192.168.104.231:2181

@springbootapplication
// 提供服务的应用必须配置此项
@dubbocomponentscan("com.dubbo.provider.service")
public class providerapplication {

  public static void main(string[] args) {
    springapplication.run(providerapplication.class, args);
  }

}

@component
// 该service是org.apache.dubbo.config.annotation.service
@service
public class userserviceimpl implements userservice {
  @override
  public user getuserbyid(integer id) {
    user user = user.builder()
        .id(id)
        .name("张三")
        .age(20 + id)
        .build();

    return user;
  }
}

四、创建消费者

<?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>com.dubbo</groupid>
    <version>1.0.0</version>
    <artifactid>demo01</artifactid>
  </parent>

  <groupid>com.dubbo</groupid>
  <artifactid>consumer</artifactid>
  <version>0.0.1-snapshot</version>
  <name>consumer</name>
  <description>demo project for spring boot</description>

  <dependencies>
    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-web</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.dubbo</groupid>
      <artifactid>dubbo-spring-boot-starter</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.curator</groupid>
      <artifactid>curator-recipes</artifactid>
    </dependency>

    <dependency>
      <groupid>org.apache.zookeeper</groupid>
      <artifactid>zookeeper</artifactid>
    </dependency>

    <!-- 导入公共接口依赖 -->
    <dependency>
      <groupid>com.dubbo</groupid>
      <artifactid>api</artifactid>
      <version>1.0.0</version>
    </dependency>

    <dependency>
      <groupid>org.springframework.boot</groupid>
      <artifactid>spring-boot-starter-test</artifactid>
      <scope>test</scope>
      <exclusions>
        <exclusion>
          <groupid>org.junit.vintage</groupid>
          <artifactid>junit-vintage-engine</artifactid>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupid>org.springframework.boot</groupid>
        <artifactid>spring-boot-maven-plugin</artifactid>
      </plugin>
    </plugins>
  </build>

</project>

# 端口
server:
 port: 8081
dubbo:
 application:
  name: user-consumer
 protocol:
  name: dubbo
  port: 20880
 registry:
  address: zookeeper://192.168.104.231:2181

@springbootapplication

public class consumerapplication {

  public static void main(string[] args) {
    springapplication.run(consumerapplication.class, args);
  }

}

@restcontroller
@requestmapping("/user")
public class consumercontroller {
  @reference
  private userservice userservice;

  @getmapping("/{id}")
  public user getuserbyid(@pathvariable int id) {
    return userservice.getuserbyid(id);
  }
}

五、启动并访问

先启动provider，启动结果如下

springboot2.2.2集成dubbo的实现方法