Question

我有一个看起来像这样的JSON

{  
   "uniqueId":"junk",
   "buildingId":"123",
   "famousFor":[  
      {  
         "famousForId":"asd",
         "name":"Gaming",
         "activeState":true
      }
   ],
   "openHours":[  
      {  
         "day":"Sunday",
         "timingsFrom":{  
            "time":"11:00",
            "meridian":"AM"
         },
         "timingsTo":{  
            "time":"11:59",
            "meridian":"PM"
         }
      }
   ],
   "uploadedImages":{  
      "coverPhoto":[  
         {  
            "imageUrl":"http://google.com/images/a123a.png",
            "activeState":false
         }
      ],
      "profilePhoto":[  
         {  
            "imageUrl":"http://google.com/images/a123a.png, 
                        "            activeState":false
         }
      ]
   },
   "fDescriptions":[  
      {  
         "fMapUrl":"http://google.com/images/a123a.png",
         "tag":"1"
      }
   ],
   "Outlets":[  
      {  
         "outletName":"Halo",
         "floorNumber":1,
         "category":"Gaming"
      }
   ]
}

现在，我必须创建一个GET API，该API实际上将为我提供具有空值的相同模板。返回对象时，它向我发送了空值。如何标准化外观相同的模板。我的对象看起来像这样。

public class EssentialDetails {

    @NotBlank(message=ApplicationUtil.MISSING_FIELD)
    @Valid
    @Pattern(regexp = "[0-9]+$",message="DP ID Must be Number")
    String dpId;
    @Id @NotBlank(message= ApplicationUtil.MISSING_FIELD)
    @Valid
    @Pattern(regexp = "[A-Za-z0-9]+$",message="Must Be Combination of Number and Letters")
    String tpId;
    @NotNull(message=ApplicationUtil.MISSING_FIELD)   @Valid
    List<FamousFor> famousFor;
    @NotNull(message=ApplicationUtil.MISSING_FIELD)  @Valid
    List<OpenHours> openHours;
    @NotNull(message=ApplicationUtil.MISSING_FIELD)  @Valid
    Pictures uploadedImages;
    @NotNull(message=ApplicationUtil.MISSING_FIELD) @Valid
    List<FloorDescription> floorDescriptions;
    @NotNull(message=ApplicationUtil.MISSING_FIELD)  @Valid
    List<Outlets> mallOutlets;

}

如何在模板中包含每个字段的情况下传递空模板？我正在使用Java 8和Spring Boot 2.0.6。

Answer 1

如果为空或为null，或者注释下方的某些有效值可以在模型属性的上方使用

@JsonInclude(ALWAYS)

从对象的对象创建Json对象模板

1 个答案: