对象json字符串数组 java对象 java把json的字符串转换为json对象和数组

[Json——使用Json jar包实现Json字符串与Java对象或集合之间的互相转换]

1，[java将JSON字符串转换为实体类对象 @SuppressWarnings(unchecked)public static T jsonToObject(String jsonString, Class pojoCalss) {try{Object pojo;json格式的字符串

public class Demo {

5. public static void main(String[] args) throws Exception {

6. String str = "{\"a\":\"b\", \"c\":\"d\"}";

7. JSONObject a = new JSONObject(str);

8. System.out.println(a); // {"c":"d","a":"b"}

9. System.out.println(a.get("c")); // d

10. }

11.}

2，json数组的格式

其中AlarmRecord为javabean对象 字段包括a,b,a

public List getJson() throws Exception{

String str="[{"a":1,"b":"2","c":3}, {"a":1,"b":"2","c":3}]"

JSONArray jArray=JSONArray.fromObject(str);

List list=JSONArray.toList(jArray,AlarmRecord.class);

return list;

}

用的jar包请下载 附件[一行代码即可搞定，绕了n个圈才找到var jsonString ='{jsonSupportBean:{errorMessage:Duplicate label group name of 'Kevin6666'.,message:null,result:nu]