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Spring Cloud整合Dubbo3和Nacos2

千行 2022-12-25 阅读 100
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一、背景

​​Spring Cloud Alibaba​​​还没发布支持​​nacos2.*​​​和​​Dubbo3.*​​的版本支持，调试花了不少时间

二、项目目录规划

  • boot-dubbo-api
  • boot-dubbo-provider
  • boot-dubbo-comsumer

三、版本控制

<properties>
        <spring-boot.version>2.5.5</spring-boot.version>
        <spring-cloud.version>2020.0.4</spring-cloud.version>
        <spring-cloud-alibaba.version>2021.1</spring-cloud-alibaba.version>
    <dubbo.boot.version>3.0.3</dubbo.boot.version>
        <nacos.boot.version>2.0.3</nacos.boot.version>
</properties>

<dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${spring-boot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-client</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-console</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-config</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-naming</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-istio</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>

            <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-core</artifactId>
                <version>${nacos.boot.version}</version>
            </dependency>
    <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-api</artifactId>
            <version>${nacos.boot.version}</version>
        </dependency>

        <dependency>
                <groupId>com.alibaba.nacos</groupId>
                <artifactId>nacos-common</artifactId>
                <version>${nacos.boot.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo-spring-boot-starter</artifactId>
            <version>${dubbo.boot.version}</version>
        </dependency>

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
            <version>${dubbo.boot.version}</version>
        </dependency>

            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${spring-cloud-alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
    </dependencies>
    </dependencyManagement>

原本使用​​nacos:1.4.1​​​，但一直报找不到方法异常在​​dubbo-dependencies-bom​​​的pom文件，依赖了​​nacos-client:2.0.3​​​，所以如果升级​​dubbo3​​​必须先升级​​nacos-server:2.0.3​​​，在升级过程建议分两步走，先升级​​nacos:2.0.3​​​再升级​​dubbo3​​​，​​nacos2​​​使用了​​grpc​​​通信，还需要开放​​9848​​​和​​9849​​端口，具体​​Nacos升级到2.0.1心得​​

四、API模块

pom.xml

<dependencies>
        <dependency>
            <groupId>com.teddy</groupId>
            <artifactId>teddy-swagger-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>com.teddy</groupId>
            <artifactId>teddy-beans</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-api</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.nacos</groupId>
            <artifactId>nacos-common</artifactId>
        </dependency>

    </dependencies>

DTO

@Data
@ApiModel("查询用户")
public class FindUserRequest implements Serializable {

    private static final long serialVersionUID = 7385459305929436097L;
    @ApiModelProperty("账户名")
    private String name;
}

@ApiModel("用户信息")
@Getter
@Setter
@Accessors(chain = true)
public class UserDetailResponse implements Serializable {

    private static final long serialVersionUID = 8262316224267833278L;
    private Long id;
    private String name;
    private String nick;
    private Integer age;
    private Integer gender;
    private String phone;
    private String email;

}

SERVICE

public interface UserService {
    ApiResponse<UserDetailResponse> findByName(FindUserRequest request);

}

五、提供者模块

pom.xml

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

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

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

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

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

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>

        <dependency>
            <groupId>com.teddy</groupId>
            <artifactId>boot-dubbo-api</artifactId>
            <version>1.0.0</version>
        </dependency>
    </dependencies>

配置文件

  • ​​bootstrap.yml​​

server:
  port: 8121


spring:
  application:
    name: @artifactId@
  cloud:
    nacos:
      discovery:
        server-addr: ${NACOS_HOST:192.168.0.102}:${NACOS_PORT:8848}
        metadata:
          version: v100
          context-path: ${server.servlet.context-path}
      config:
        server-addr: ${spring.cloud.nacos.discovery.server-addr}
        file-extension: yml
        shared-configs:
          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}

  profiles:
    active: @profiles.active@

  • ​​application.yml​​

spring:
  profiles:
    active:
      dev
    include:
      - teddy
  mvc:
    throw-exception-if-no-handler-found: true

  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
    default-property-inclusion: NON-NULL
    deserialization:
      accept_empty_string_as_null_object: true

dubbo:
  scan:
    base-packages: com.teddy.rpc
  protocol:
    name: dubbo
    port: 8122
  registry:
    address: nacos://192.168.0.102:8848?username=nacos&password=nacos
  application:
    name: ${spring.application.name}

启动类

@EnableDiscoveryClient
@SpringBootApplication
public class BootDubboProvider {
    public static void main(String[] args) {
        SpringApplication.run(BootDubboProvider.class, args);
    }
}

服务实现层

@Slf4j
@Service
@DubboService
public class UserServiceImpl implements UserService {

    @Override
    public ApiResponse<UserDetailResponse> findByName(FindUserRequest request) {
        log.info("name:{}", request.getName());

        UserDetailResponse response = new UserDetailResponse()
                .setId(1L)
                .setName("zhangsan")
                .setNick("张三")
                .setAge(18)
                .setGender(1)
                .setPhone("13000000000")
                .setEmail("zhangsan@gmail.com");
        
        return ApiResponseBuilderUtil.success(response);
    }
}

六、服务消费者

pom.xml

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

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>

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

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

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

        <dependency>
            <groupId>org.apache.dubbo</groupId>
            <artifactId>dubbo</artifactId>
        </dependency>
        <dependency>
            <groupId>com.teddy</groupId>
            <artifactId>boot-dubbo-api</artifactId>
            <version>1.0.0</version>
        </dependency>
    </dependencies>

配置文件

  • ​​bootstrap.yml​​

server:
  port: 8131


spring:
  application:
    name: @artifactId@
  cloud:
    nacos:
      discovery:
        server-addr: ${NACOS_HOST:192.168.0.102}:${NACOS_PORT:8848}
        metadata:
          version: v100
          context-path: ${server.servlet.context-path}
      config:
        server-addr: ${spring.cloud.nacos.discovery.server-addr}
        file-extension: yml
        shared-configs:
          - application-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}

  profiles:
    active: @profiles.active@

  • ​​application.yml​​

spring:
  profiles:
    active:
      dev
    include:
      - teddy
  mvc:
    throw-exception-if-no-handler-found: true

  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8
    default-property-inclusion: NON-NULL
    deserialization:
      accept_empty_string_as_null_object: true

dubbo:
  protocol:
    name: dubbo
  registry:
    address: nacos://192.168.0.102:8848?username=nacos&password=nacos
  application:
    name: ${spring.application.name}

启动类

@EnableDiscoveryClient
@SpringBootApplication
public class BootDubboConsumer {
    public static void main(String[] args) {
        SpringApplication.run(BootDubboConsumer.class, args);
    }
}

rpc调用类

@Api(value = "用户前端控制器", tags = "用户前端控制器")
@RestController
@RequestMapping("/user")
public class UserController {

    @DubboReference
    private UserService userService;

    @ApiOperation("查找用户")
    @PostMapping("/findByName")
    public ApiResponse<UserDetailResponse> sayHello(@Validated @RequestBody FindUserRequest request) {
        return userService.findByName(request);
    }
}

七、使用

Spring Cloud整合Dubbo3和Nacos2_apache

八、注意事项

  1. nacos需要2.0.3，dubbo3使用的是nacos2.0.3的版本，使用1..，会报找不到方法异常，具体看​​dubbo-dependencies-bom​​的pom文件
  2. dubbo用的spring-boot-project项目下的，未来alibaba依赖需要更改，本文只做尝鲜
  3. dubbo-admin目前还不支持dubbo3
  4. dubbo3的新协议性能并不好，建议保守使用dubbo协议
  5. dubbo3升级注册信息为应用级注册，但是为了兼容以前版本保留了，接口级的注册信息
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