Question

我有以下错误类：

private static class GenericError extends Error {
        private int code;
        private String message;
        private Date timestamp;

        public GenericError(String message, int code, String message1) {
            super(message);
            this.code = code;
            this.message = message1;
            this.timestamp = new Date();
        }

        public int getCode() {
            return code;
        }

        @Override
        public String getMessage() {
            return message;
        }

        public Date getTimestamp() {
            return timestamp;
        }
    }
    private static class ConfirmResponse extends GenericError {
        private String confirmMessage;
        private String instructions;


        public ConfirmResponse(String message, int code, String message1, String confirmMessage, String instructions) {
            super(message, code, message1);
            this.confirmMessage = confirmMessage;
            this.instructions = instructions;
        }

        public String getConfirmMessage() {
            return confirmMessage;
        }

        public String getInstructions() {
            return instructions;
        }
    }

我正在使用它：

@RequestMapping(value="login", method=RequestMethod.POST,  produces = {MediaType.APPLICATION_JSON_VALUE })
    FbLoginResponse login(@RequestBody Body body) throws IOException, InvalidKeySpecException,
            NoSuchAlgorithmException, ConfirmLogin, ClassNotFoundException, ConfirmResponse {

            ... 
            ... 
            ... 
            ... 

            ConfirmResponse r = new ConfirmResponse("Error", 111, "An account already exists under this email",
                    "Please confirm your account",
                    "Log in with your prev account");

            throw r;

但我得到的回答不正确：

{
  "timestamp": 1467604509746,
  "status": 500,
  "error": "Internal Server Error",
  "exception": "com.userapi.spring.controller.UserController$ConfirmResponse",
  "message": "An account already exists under this email",
  "path": "/user/login/fac

ebook"
}

我还尝试扩展例外，这会产生相同的消息。

修改

我希望能够将多个不同的 类对象 返回给客户端。所以，如果出现错误，我可以返回

new Error("Error occured")

如果我需要返回我可以做的自定义消息

return new CustomMessage("Check your Email!);

当我定义控制器的返回类型时，我不能这样做，例如

LoginResp login(@RequestBody UserFacebookLoginContext body)

... I can only return LoginResp, I cannot return ErrorResponse, or CustomResponse

基本上我想要的是返回多种类型的类，例如

 AnyResp login(@RequestBody UserFacebookLoginContext body)
 if error ... return new ErrorResponse("something went wrong");

 if requires-custom ... return new CustomResponse ("Please check your email");

Answer 1

我将给你一个例子，说明我如何使用ResponseEntity来处理不同的对象

@RequestMapping(value = "/all", method = RequestMethod.GET)
public ResponseEntity<?> getAll() {
    List<Transferencia> list = transferenciaDAO.getAll();
    if (!list.isEmpty()) {
        return new ResponseEntity<>(list, HttpStatus.OK);
    } else {//here you can return any type of object doing your respective control of field.
        JsonResponse msj = new JsonResponse("Error", "List empty");
        return new ResponseEntity<>(msj, HttpStatus.NOT_FOUND);
    }
}

如果您不想返回任何错误。你可以返回类似的东西：

return new ResponseEntity<>(HttpStatus.NOT_FOUND);

Spring返回自定义消息未按预期返回

修改

1 个答案: