JSON首字母大写问题

一般如果json中的字段和类里的属性相同,则不需要修改,如果不通则可以在类的属性上添加@JsonProperty  或者@JSONField

 但是如果JSON数据或者类中属性首字母大写的话,只能使用@JsonProperty,否则注入的值是null

比如

实体类

@Data
public class User extends Base{

    @JSONField( name ="Name" )
    private String Name;

    private List phones;
}

 接口

@RestController
public class UserController {

    private List list= new ArrayList<>();

    @PostMapping("/add")
    public String add(@RequestBody User user){
        list.add(user);
        return "ok";
    }


    @GetMapping("/list")
    public List list(){
        return list;
    }

}

发送的json数据

{
	"id":1,
	"Name":"jack",
	"createTime":"2018-12-14 10:10:11",
	"phones":[
			{"number":139,
			"addr":"中国移动"
			},
				{"number":139,
			"addr":"中国移动"
			}
		]
}

 

返回的数据,不但name值是空,而且修改了属性名,Name变成了name;

[
    {
        "id": 1,
        "createTime": "2018-12-14 10:10:11",
        "phones": [
            {
                "number": 139,
                "addr": "中国移动"
            },
            {
                "number": 139,
                "addr": "中国移动"
            }
        ],
        "name": null
    }
]

使用JsonProperty

@Data
public class User extends Base{

    @JsonProperty( value ="Name" )
    private String Name;

    private List phones;
}

 返回结果正常

[
    {
        "id": 1,
        "createTime": "2018-12-14 10:10:11",
        "phones": [
            {
                "number": 139,
                "addr": "中国移动"
            },
            {
                "number": 139,
                "addr": "中国移动"
            }
        ],
        "Name": "jack"
    }
]