将json格式数据重复的数据，值相加后移除一条

import net.sf.json.JSONArray;

import net.sf.json.JSONObject;

/**

 * 艺馨测试类

 * @author yltd

 *

 */

public class JsonToJava {

public static void main(String[] args) {

String jsonString = "[{\"time\":\"2018/12/14\",\"value\":\"2\"},{\"time\":\"2018/12/15\",\"value\":\"5\"},{\"time\":\"2018/12/16\",\"value\":\"4\"},{\"time\":\"2018/12/17\",\"value\":\"7\"},{\"time\":\"2018/12/18\",\"value\":\"2\"},{\"time\":\"2018/12/19\",\"value\":\"3\"},{\"time\":\"2018/12/20\",\"value\":\"5\"},{\"time\":\"2018/12/20\",\"value\":\"6\"},{\"time\":\"2018/12/19\",\"value\":\"3\"},{\"time\":\"2018/12/18\",\"value\":\"2\"},{\"time\":\"2018/12/17\",\"value\":\"3\"},{\"time\":\"2018/12/16\",\"value\":\"6\"},{\"time\":\"2018/12/15\",\"value\":\"2\"},{\"time\":\"2018/12/14\",\"value\":\"1\"}]";

getPersons(jsonString);

}

public static JSONArray getPersons(String jsonString) {

JSONArray jsonArray = JSONArray.fromObject(jsonString); //将json转换成json数组

System.out.println(jsonArray);

for(int i=0;i<jsonArray.size();i++){ //循环对比

JSONObject jObject_one=jsonArray.getJSONObject(i);

for (int j = i; j < jsonArray.size()-1; j++) {

JSONObject jObject_tow=jsonArray.getJSONObject(j+1);

if(jObject_one.get("time").equals(jObject_tow.get("time"))){//判断两个时间是否相同，相同时 值相加

   String key = jObject_one.getString("time");

           int value = Integer.valueOf(jObject_one.getString("value")) +Integer.valueOf(jObject_tow.getString("value"));

           //修改值

           jObject_one.put("time", key);

           jObject_one.put("value", value);

           //将json数组中的第二个时间移除

           jsonArray.remove(j+1);

           

}

}

        }

System.out.println("数组移除后："+jsonArray);

return jsonArray;

    }

}

=================结果：============

[{"time":"2018/12/14","value":"2"},{"time":"2018/12/15","value":"5"},{"time":"2018/12/16","value":"4"},{"time":"2018/12/17","value":"7"},{"time":"2018/12/18","value":"2"},{"time":"2018/12/19","value":"3"},{"time":"2018/12/20","value":"5"},{"time":"2018/12/20","value":"6"},{"time":"2018/12/19","value":"3"},{"time":"2018/12/18","value":"2"},{"time":"2018/12/17","value":"3"},{"time":"2018/12/16","value":"6"},{"time":"2018/12/15","value":"2"},{"time":"2018/12/14","value":"1"}]

数组移除后：

[{"time":"2018/12/14","value":3},{"time":"2018/12/15","value":7},{"time":"2018/12/16","value":10},{"time":"2018/12/17","value":10},{"time":"2018/12/18","value":4},{"time":"2018/12/19","value":6},{"time":"2018/12/20","value":11}]