Springboot 2 RSocket应用程序启动后立即停止，没有错误消息。

Question

我只是使用RSocket初学者选择了一个springboot应用程序示例：

构建，然后运行可运行的jar将给出以下日志：

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.2.1.RELEASE)

2019-12-04 09:45:20.985  INFO 12928 --- [           main] com.example.DemoApplication         : Starting DemoApplication on XXX with PID 1234 (demo/target/classes started by me in ~/demo)
2019-12-04 09:45:20.987  INFO 12928 --- [           main] com.example.DemoApplication         : No active profile set, falling back to default profiles: default
2019-12-04 09:45:21.761  INFO 12928 --- [           main] com.example.DemoApplication         : Started DemoApplication in 1.172 seconds (JVM running for 2.378)

Process finished with exit code 0

问题是Springboot主线程不需要等待RSocket请求就会立即停止。我想问题是RSocket服务器没有启动，所以我尝试添加一个RSocket控制器，如下所示：

@Controller
public class DemoController {

    @MessageMapping("retreiveSomeData")
    public Mono<Data> retreiveAccount(String criteria) {
        return Mono.just(new Data());
    }

}

相同结果^^

任何使用RSocket和SpringBoot的人都能找到一种“漂亮”的方式来迫使Springboot线程等待？

Answer 1

解决方案是添加一个RSocket配置。

只需添加以下application.yaml：

# application.yaml
spring:
  rsocket:
    server:
      port: 7000

然后Netty服务器将在端口7000上启动：

  .   ____          _            __ _ _
  /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
  ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
  \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
  =========|_|==============|___/=/_/_/_/
  :: Spring Boot ::        (v2.2.1.RELEASE)

INFO 4472 --- [           main] com.example.DemoApplication       : Starting DemoApplication on ...
INFO 4472 --- [           main] com.example.DemoApplication       : No active profile set, falling back to default profiles: default
INFO 4472 --- [           main] o.s.b.rsocket.netty.NettyRSocketServer   : Netty RSocket started on port(s): 7000
INFO 4472 --- [           main] com.example.DemoApplication       : Started DemoApplication in 2.704 seconds (JVM running for 3.142)