将SpringBoot工程集成Dubbo

1.创建父工程

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2.创建子工程consumer，provider

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3.初始化工程

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4.引入依赖

在provider和consumer中引入dubbo依赖

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>3.0.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-rpc-dubbo</artifactId>
            <version>3.0.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-zookeeper</artifactId>
            <version>3.0.7</version>
        </dependency>

5.新建common模块

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在common模块创建User类
User

@Data
@AllArgsConstructor
public class User implements Serializable {
    private String uid;
    private String username;
}

在common模块创建接口UserService

public interface UserService {
    public User getUser(String uid);
}

Provider

1.pom中添加依赖

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

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <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>
            <version>3.0.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-rpc-dubbo</artifactId>
            <version>3.0.7</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-registry-zookeeper</artifactId>
            <version>3.0.7</version>
        </dependency>
        <dependency>
            <groupId>com.hejiawang</groupId>
            <artifactId>common</artifactId>
            <version>0.0.1-SNAPSHOT</version>
            <scope>compile</scope>
        </dependency>

2.添加UserServiceImpl

使用@DubboService并且指定版本

@DubboService(version = "1.0")
public class UserServiceImpl implements UserService {
    public User getUser(String uid){
        User hejiawang = new User(uid,"hejiawang");
        return hejiawang;
    }
}

3.添加UserServiceImpl2

使用@DubboService并且指定版本

@DubboService(version = "2.0")
public class UserServiceImpl2 implements UserService {
    public User getUser(String uid){
        User hejiawang = new User(uid,"hejiawang");
        return hejiawang;
    }
}

4.在启动类中添加@EnableDubbo

@SpringBootApplication
@EnableDubbo
public class ConsumerApplication {

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

}

Consumer

1.pom中添加依赖

		<dependency>
			<groupId>org.apache.dubbo</groupId>
			<artifactId>dubbo-spring-boot-starter</artifactId>
			<version>3.0.7</version>
		</dependency>
		<dependency>
			<groupId>org.apache.dubbo</groupId>
			<artifactId>dubbo-rpc-dubbo</artifactId>
			<version>3.0.7</version>
		</dependency>
		<dependency>
			<groupId>org.apache.dubbo</groupId>
			<artifactId>dubbo-registry-zookeeper</artifactId>
			<version>3.0.7</version>
		</dependency>
		<dependency>
			<groupId>com.hejiawang</groupId>
			<artifactId>common</artifactId>
			<version>0.0.1-SNAPSHOT</version>
			<scope>compile</scope>
		</dependency>

2.添加OrderService

OrderService

@Service
public class OrderService {
    @DubboReference(version = "1.0")
    private UserService userService;

    public User getOrderService(String uid){
        return userService.getUser(uid);
    }
}

3.添加OrderController

OrderController

@RestController
public class OrderController {
    @Autowired
    OrderService orderService;

    @GetMapping("/user/{uid}")
    public User getUser(@PathVariable("uid") String uid) {
        return orderService.getOrderService(uid);

    }
}

4.启动类添加@EnableDubbo

@SpringBootApplication
@EnableDubbo
public class ConsumerApplication {

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

}