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JSONObject自动隐藏为null的属性的解决办法
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JSON字符串转JSONObject自动隐藏为null的属性
JSON中put的value=null，key=value会被隐藏掉
package hskw.chd;
import com.alibaba.fastjson.JSONObject;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
/**
* @author hskw
* @date 2019年4月4日
*/
public class JsonTest {
public static void main(String[] args) {
String json = "{\"msg\":\"success\",\"code\":0,\"data\":"
+ "{\"total\":1,\"size\":10,\"pages\":1,\"current\":1,"
+ "\"records\":[{\"id\":\"88db551925ea4822aeab2ddcd8c66dbe\","
+ "\"userId\":\"userId\",\"userName\":\"咨询人名称\","
+ "\"transId\":\"事项id\",\"reuserId\":null,\"consultCode\":"
+ "\"BH1554275529568\",\"telPhone\":\"电话\",\"title\":\"标题\","
+ "\"content\":\"咨询内容\",\"addDate\":null,\"reDate\":null,"
+ "\"reContent\":null,\"reType\":null,\"createBy\":null,"
+ "\"createDate\":null,\"updateBy\":null,\"updateDate\":null,"
+ "\"remarks\":\"备注\",\"delFlag\":\"0\"}]}}";
//将JSON字符串转换为JSONObject对象
JSONObject object = (JSONObject)JSONObject.parse(json);
//打印格式化后的JSON对象
System.out.println(toJson(object));
}
/**
* 对象——格式化后的Json
* @param object
* @return
*/
public static String toJson(Object object){
GsonBuilder gsonBuilder = new GsonBuilder();
gsonBuilder.setPrettyPrinting(); //生成格式化后的json
Gson gson = gsonBuilder.create();
return gson.toJson(object);
}
}
为null的属性已被隐藏（在其中，只是隐藏了），运行结果如下 ：
Fastjson的SerializerFeature序列化属性 QuoteFieldNames———-输出key时是否使用双引号,默认为true WriteMapNullValue——–是否输出值为null的字段,默认为false WriteNullNumberAsZero—-数值字段如果为null,输出为0,而非null WriteNullListAsEmpty—–List字段如果为null,输出为[],而非null WriteNullStringAsEmpty—字符类型字段如果为null,输出为”“,而非null WriteNullBooleanAsFalse–Boolean字段如果为null,输出为false,而非null 输出被隐藏的属性：
{ "msg": "success", "code": 0, "data": { "total": 1, "current": 1, "pages": 1, "size": 10, "records": [ { "updateDate": "", "transId": "事项id", "consultCode": "BH1554275529568", "userName": "咨询人名称", "title": "标题", "delFlag": "0", "userId": "userId", "addDate": "", "content": "咨询内容", "telPhone": "电话", "reType": "", "createBy": "", "updateBy": "", "reDate": "", "reContent": "", "id": "88db551925ea4822aeab2ddcd8c66dbe", "remarks": "备注", "reuserId": "", "createDate": "" } ] } } |
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