springboot @value无法赋值

1解决方式
在类上在加@Compent

@Component
@EnableBinding(Sink.class)
public class ReceiveMessageListenerController

 @Value("${server.port}")
private String serverPort;

2静态属性使用set

@Component
@EnableBinding(Sink.class)
public class ReceiveMessageListenerController {
    private static String serverPort;

    @Value("${server.port}")
    public void setServerPort(String serverPort) {
        this.serverPort = serverPort;
    }

3通过@Autowired

  @Autowired
  private ReceiveMessageListenerController ( @Value("${server.port}")String  serverPort) {
    this.serverPort= serverPort;

  }