message SongServerRequest {
    required string song_name = 1;   
} 
enum Foo {       
  FIRST_VALUE = 1;       
  SECOND_VALUE = 2;   
} 

    <properties>
        <java.version>8</java.version>
        <nacos.version>2.2.5.RELEASE</nacos.version>
        <mapstruct.version>1.3.1.Final</mapstruct.version>
        <grpc.starter.version>2.10.1.RELEASE</grpc.starter.version>
        <grpc.client.version>2.10.1.RELEASE</grpc.client.version>
        <lombok.version>1.18.12</lombok.version>
        <fastjson.version>1.2.76</fastjson.version>
        <freemarker.verson>2.3.28</freemarker.verson>
        <nacos.client>2.0.0</nacos.client>
    </properties>
    <dependency>
       <groupId>net.devh</groupId>
       <artifactId>grpc-client-spring-boot-starter</artifactId>
       <version>${grpc.client.version}</version>
    </dependency>
    <dependency>
        <groupId>net.devh</groupId>
        <artifactId>grpc-server-spring-boot-starter</artifactId>
        <version>${grpc.starter.version}</version>
    </dependency>

<dependencies>
        <dependency>
            <groupId>net.devh</groupId>
            <artifactId>grpc-server-spring-boot-starter</artifactId>
        </dependency>
    </dependencies>
    <build>
        <extensions>
            <extension>
                <groupId>kr.motd.maven</groupId>
                <artifactId>os-maven-plugin</artifactId>
                <version>1.6.2</version>
            </extension>
        </extensions>
        <plugins>
            <plugin>
                <groupId>org.xolstice.maven.plugins</groupId>
                <artifactId>protobuf-maven-plugin</artifactId>
                <version>0.6.1</version>
                <configuration>
                    <protocArtifact>com.google.protobuf:protoc:3.12.0:exe:${os.detected.classifier}</protocArtifact>
                    <pluginId>grpc-java</pluginId>
                    <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.34.1:exe:${os.detected.classifier}</pluginArtifact>
                    <!--設(shè)置grpc生成代碼到指定路徑-->
                    <outputDirectory>${project.basedir}/src/main/java</outputDirectory>
                    <!--生成代碼前是否清空目錄-->
                    <clearOutputDirectory>false</clearOutputDirectory>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>compile</goal>
                            <goal>compile-custom</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <!-- 設(shè)置多個源文件夾 -->
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>build-helper-maven-plugin</artifactId>
                <version>3.0.0</version>
                <executions>
                    <!-- 添加主源碼目錄 -->
                    <execution>
                        <id>add-source</id>
                        <phase>generate-sources</phase>
                        <goals>
                            <goal>add-source</goal>
                        </goals>
                        <configuration>
                            <sources>
                                <source>${project.basedir}/src/main/gen</source>
                                <source>${project.basedir}/src/main/java</source>
                            </sources>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

syntax = "proto3";
option java_multiple_files = true;
option java_package = "com.yx.grpc.user";
service UserService {
  rpc queryUser(UserRequest) returns (UserReply) {}
}
message UserRequest {
  int64 id = 2;
}
message UserReply {
  int32 code = 1;
  string msg = 2;
  bool success = 3;
  message Data {
    UserPb userPb = 1;
  }
  Data data = 4;
}
message UserPb {
  int64 id = 1;
  string name = 2;
  string sex = 3;
}

@GrpcService
public class UserServiceImpl  extends UserServiceGrpc.UserServiceImplBase{
    @Override
    public void queryUser(UserRequest request, StreamObserver<UserReply> responseObserver) {
        UserReply.Builder userReply =  UserReply.newBuilder();
        TblUser tblUser = new TblUser(11L, "syx", "nan");
        userReply.setCode(200).setMsg("SUCCESS").setSuccess(true);
        userReply.setData(UserReply.Data.newBuilder()
                .setUserPb(UserPb.newBuilder()
                        .setId(tblUser.getId())
                .setName(tblUser.getName())
                .setSex(tblUser.getSex())));
        responseObserver.onNext(userReply.build());
        responseObserver.onCompleted();
        super.queryUser(request, responseObserver);
    }
}

grpc:
  client:
    GLOBAL:
      negotiation-type: plaintext
      enable-keep-alive: true
      keep-alive-without-calls: true

@Configuration
public class MessageConverter {
    @Bean
    public HttpMessageConverters protobufHttpMessageConverter() {
        ProtobufHttpMessageConverter protobufHttpMessageConverter = new ProtobufHttpMessageConverter();
        protobufHttpMessageConverter.setSupportedMediaTypes(Lists.newArrayList(MediaType.APPLICATION_JSON, MediaType.parseMediaType(MediaType.TEXT_PLAIN_VALUE + ";charset=ISO-8859-1")));
        return new HttpMessageConverters(protobufHttpMessageConverter);
    }
}

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @GrpcClient("yx-grpc-service")
    UserServiceGrpc.UserServiceFutureStub futureStub;
    @RequestMapping(value="/queryUser/{id}")
    public UserReply queryUser(@PathVariable Integer id)  {
        UserReply userReply = null;
        try {
            userReply = futureStub.queryUser(UserRequest.newBuilder().setId(id).build()).get();
            return userReply;
        } catch (Exception e) {
        }
        return userReply;
    }
}