springboot2.2.2集成dubbo的實(shí)現(xiàn)方法

更新時(shí)間：2020年01月20日 15:06:19 作者：Szr維

這篇文章主要介紹了springboot2.2.2集成dubbo的實(shí)現(xiàn)方法，文中通過(guò)示例代碼介紹的非常詳細(xì)，對(duì)大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價(jià)值，需要的朋友們下面隨著小編來(lái)一起學(xué)習(xí)學(xué)習(xí)吧

最近在學(xué)習(xí)dubbo，想著作一些筆記，從來(lái)沒(méi)有在csdn上面寫(xiě)過(guò)博客，今天獻(xiàn)出第一次，哈哈，直接上代碼

一、創(chuàng)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>

  <!--統(tǒng)一管理依賴版本-->
  <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>
    <!-- 連接zookeeper的依賴，我的zookeeper版本是3.4.14，感覺(jué)這個(gè)jar版本和zookeeper是大概保持一致的，但是引入3.4.14會(huì)報(bào)錯(cuò)，我試了下，從3.4.13開(kāi)始就不行了 -->
    <zookeeper.version>3.4.12</zookeeper.version>
  </properties>

  <!--依賴定義-->
  <!--dependencyManagement 定義依賴版本號(hào)。子工程直接加依賴即可，不需要再次加版本號(hào)，便于統(tǒng)一維護(hù)版本號(hào)-->
  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.apache.dubbo</groupId>
        <artifactId>dubbo-spring-boot-starter</artifactId>
        <version>${dubbo.version}</version>
      </dependency>
  <!-- zookeeper的api管理依賴 -->
      <dependency>
        <groupId>org.apache.curator</groupId>
        <artifactId>curator-recipes</artifactId>
        <version>${curator.version}</version>
      </dependency>
  <!-- zookeeper依賴 -->
      <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>
    <!-- 使用該依賴，idea需要安裝插件，沒(méi)有用過(guò)的自行百度一下吧 -->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>
  </dependencies>
</project>

二、創(chuàng)建提供者與消費(fèi)者共用的api

該模塊沒(méi)有什么好說(shuō)的，提供者和消費(fèi)者都需要使用的接口api，提供者和消費(fèi)者都需要引入該模塊

<?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、創(chuàng)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>
    <!-- 導(dǎo)入公共接口依賴 -->
    <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:
  # 應(yīng)用名稱
  name: user-provider
 protocol:
  # 協(xié)議名稱
  name: dubbo
  # 協(xié)議端口
  port: 20880
 registry:
  # 注冊(cè)中心地址
  address: zookeeper://192.168.104.231:2181

@SpringBootApplication
// 提供服務(wù)的應(yīng)用必須配置此項(xiàng)
@DubboComponentScan("com.dubbo.provider.service")
public class ProviderApplication {

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

}

@Component
// 該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("張三")
        .age(20 + id)
        .build();

    return user;
  }
}

四、創(chuàng)建消費(fèi)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>

    <!-- 導(dǎo)入公共接口依賴 -->
    <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、啟動(dòng)并訪問(wèn)

先啟動(dòng)provider，啟動(dòng)結(jié)果如下