如何将http状态添加到所有响应dto（数据传输对象）？

Question

public class BaseDto {

 private int code;
 private boolean success;

 public BaseDto() {
    this.code = HttpStatus.OK.value();
    this.success = HttpStatus.OK.is2xxSuccessful();
 }

}

当然，我是通过如下扩展来使用这个类的：

@ApiModel("User")
public class UserDto extends BaseDto {
    private String email;
    private String username;
    // stuffs
}

如果我在使用此结构时处理用户请求，我将得到：

{
  code: 200,
  success: true,
  email: "",
  username: ""
}

{
  "code": 0,
  "createdAt": "2016-05-17T21:59:37.512Z",
  "id": "string",
  "likes": [
    {
      "code": 0,
      "createdAt": "2016-05-17T21:59:37.512Z",
      "deviceType": "string",
      "email": "string",
      "fbAccessToken": "string",
      "fbId": "string",
      "followers": [
        {}
      ],
      "followings": [
        {}
      ],
      "id": "string",
      "profileImage": "string",
      "success": true,
      "token": "string",
      "udid": "string",
      "updatedAt": "2016-05-17T21:59:37.512Z",
      "username": "string",
      "version": 0
    }
  ],
  "pictures": [
    "string"
  ],
  "postedBy": {
    "code": 0,
    "createdAt": "2016-05-17T21:59:37.512Z",
    "deviceType": "string",
    "email": "string",
    "fbAccessToken": "string",
    "fbId": "string",
    "followers": [
      {}
    ],
    "followings": [
      {}
    ],
    "id": "string",
    "profileImage": "string",
    "success": true,
    "token": "string",
    "udid": "string",
    "updatedAt": "2016-05-17T21:59:37.512Z",
    "username": "string",
    "version": 0
  },
  "success": true,
  "text": "string",
  "updatedAt": "2016-05-17T21:59:37.512Z",
  "userId": "string",
  "userIds": [
    "string"
  ],
  "version": 0
}

Answer 1

您可以创建响应并设置HttpStatus。在AppUtil类中编写一个方法，如下所示：

public static ResponseEntity<ResponseEnvelope> successResponse(Object data,
        int messageCode, String message) {
    ResponseEnvelope envelope = new ResponseEnvelope(data, true, message,
            messageCode);
    ResponseEntity<ResponseEnvelope> responseEntity = new ResponseEntity<>(
            envelope, HttpStatus.OK);
    return responseEntity;
}

在SuccessResponse方法中，可以在ResponseEnvelope中设置Data对象，该对象将与HttpStatus一起在要返回的ResponseEntity中发送。

在这里查看我以前的答案