@PostMapping("/payment")
    public UserDTO post(@RequestBody final UserDTO userDTO) {
        return userDTO;
    }
")
public class HttpTestController {

    /**
Post user dto.

@param userDTO the user dto
@return the user dto
shenyu-examples/shenyu-examples-springmvc/src/main/java/org/apache/shenyu/examples/springmvc/controller/HttpTestController.java