Android 如何根据对象的另一个值获取特定的JSON对象？_Android_Json_Object

Android 如何根据对象的另一个值获取特定的JSON对象？

android json object

Android 如何根据对象的另一个值获取特定的JSON对象？,android,json,object,Android,Json,Object,我使用的json数组如下所示： {"GetReportResult": [ {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"}, {"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"}, {"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},

我使用的json数组如下所示：

{"GetReportResult":
  [
   {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"}, 
   {"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"},
   {"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},
   {"bulan":"5","total":"5703","type":"CHEESE1K","uang":"134929306"},
   {"bulan":"5","total":"648663","type":"ESL","uang":"6645764498"},
   {"bulan":"5","total":"51958","type":"WHP","uang":"631994613"},
   {"bulan":"6","total":"6190","type":"CHEESE1K","uang":"104527773"},
   {"bulan":"6","total":"443335","type":"ESL","uang":"4540123082"},
   {"bulan":"6","total":"30550","type":"ESL500ML","uang":"148302378"},
  ]
}

  total1  |   total2   |  total3
----------------------------------
  2448    |   2448     |  2448
  572476  |   572476   |  572476
  46008   |   46008    |  46008

  total1  |   total2   |  total3
----------------------------------
  6190    |   5703     |  2448
  443335  |   648663   |  572476
  30550   |   51958    |  46008

ArrayList < String > listBulan4 = new ArrayList < String > ();
  listBulan4.add(object.getString("total"));

这是我想要得到的特定对象的代码：

JSONArray  weeklyflash = json.getJSONArray("GetReportResult");
JSONObject e = weeklyflash.getJSONObject(i);     
String bulan = e.getString("bulan");

if (bulan == 6){
     map.put("total1", e.getString("total")); // I want the "total" values are from specified bulan (e.g. bulan == 6)
}
else if (bulan == 5){
     map.put("total2", e.getString("total")); // I want the "total" values are from specified bulan (e.g. bulan == 5)
}
else if (bulan == 4){
      map.put("total3", e.getString("total")); // I want the "total" values are from specified bulan (e.g. bulan == 4)
}

我得到的是这样的：

{"GetReportResult":
  [
   {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"}, 
   {"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"},
   {"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},
   {"bulan":"5","total":"5703","type":"CHEESE1K","uang":"134929306"},
   {"bulan":"5","total":"648663","type":"ESL","uang":"6645764498"},
   {"bulan":"5","total":"51958","type":"WHP","uang":"631994613"},
   {"bulan":"6","total":"6190","type":"CHEESE1K","uang":"104527773"},
   {"bulan":"6","total":"443335","type":"ESL","uang":"4540123082"},
   {"bulan":"6","total":"30550","type":"ESL500ML","uang":"148302378"},
  ]
}

  total1  |   total2   |  total3
----------------------------------
  2448    |   2448     |  2448
  572476  |   572476   |  572476
  46008   |   46008    |  46008

  total1  |   total2   |  total3
----------------------------------
  6190    |   5703     |  2448
  443335  |   648663   |  572476
  30550   |   51958    |  46008

ArrayList < String > listBulan4 = new ArrayList < String > ();
  listBulan4.add(object.getString("total"));

我想从指定的对象值中获取值（例如，我想从

“total”

中获取所有值，其中

“bulan”

=5）。怎么做？我想要的是这样的：

{"GetReportResult":
  [
   {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"}, 
   {"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"},
   {"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},
   {"bulan":"5","total":"5703","type":"CHEESE1K","uang":"134929306"},
   {"bulan":"5","total":"648663","type":"ESL","uang":"6645764498"},
   {"bulan":"5","total":"51958","type":"WHP","uang":"631994613"},
   {"bulan":"6","total":"6190","type":"CHEESE1K","uang":"104527773"},
   {"bulan":"6","total":"443335","type":"ESL","uang":"4540123082"},
   {"bulan":"6","total":"30550","type":"ESL500ML","uang":"148302378"},
  ]
}

  total1  |   total2   |  total3
----------------------------------
  2448    |   2448     |  2448
  572476  |   572476   |  572476
  46008   |   46008    |  46008

  total1  |   total2   |  total3
----------------------------------
  6190    |   5703     |  2448
  443335  |   648663   |  572476
  30550   |   51958    |  46008

ArrayList < String > listBulan4 = new ArrayList < String > ();
  listBulan4.add(object.getString("total"));

使用地图

地图中的关键点是您希望总计的bulan值

迭代数组并更新相关bulan值的和。

我认为这一行会产生问题

布朗=6

这样试试

布朗等于（“6”）

我想这对你有帮助

谢谢

我觉得你的代码很好。试试看

  if (bulan.equals("6")){
  map.put("total1", e.getString("total")); // I want the "total" values are from       specified bulan (e.g. bulan == 6)
}
else if (bulan.equals("5")){
     map.put("total2", e.getString("total")); // I want the "total" values are from specified bulan (e.g. bulan == 5)
 }
  else if (bulan.equals("4")){
     map.put("total3", e.getString("total")); // I want the "total" values are from specified bulan (e.g. bulan == 4)
}

给你

try {
    ArrayList < String > listBulan4 = new ArrayList < String > ();
    ArrayList < String > listBulan5 = new ArrayList < String > ();
    ArrayList < String > listBulan6 = new ArrayList < String > ();

    JSONObject jsonObject = new JSONObject("jsonString");

    JSONArray array = jsonObject.getJSONArray("GetReportResult");

    for (int i = 0; i < array.length(); i++) {
        JSONObject object = array.getJSONObject(i);

        int bulanValue = Integer.parseInt(object.getString("bulan"));

        switch (bulanValue) {
        case 4:
            listBulan4.add(object.getString("total"));
            break;
        case 5:
            listBulan5.add(object.getString("total"));
            break;
        case 6:
            listBulan6.add(object.getString("total"));
            break;
        }
    }

    Map < String, ArrayList < String >> map = new HashMap < String, ArrayList < String >> ();
    map.put("total1", listBulan6);
    map.put("total2", listBulan5);
    map.put("total3", listBulan4);

} catch (Exception e) {}

试试看{
ArrayListlistBulan4=新的ArrayList（）；
ArrayListlistBulan5=新的ArrayList（）；
ArrayListlistBulan6=新的ArrayList（）；
JSONObject JSONObject=新的JSONObject（“jsonString”）；
JSONArray数组=jsonObject.getJSONArray（“GetReportResult”）；
对于（int i=0；i>Map=newhashmap>（）；
map.put（“总计1”，列表6）；
map.put（“总计2”，列表5）；
map.put（“总计3”，列表4）；
}捕获（例外e）{}

下面是代码

package org.sample;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import org.json.JSONArray;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;

public class SOActivity extends Activity {

    String string = "{\"GetReportResult\":[{\"bulan\":\"4\",\"total\":\"2448\",\"type\":\"CHEESE1K\",\"uang\":\"8847823\"},{\"bulan\":\"4\",\"total\":\"572476\",\"type\":\"ESL\",\"uang\":\"5863408410\"},{\"bulan\":\"4\",\"total\":\"46008\",\"type\":\"ESL500ML\",\"uang\":\"234498301\"},{\"bulan\":\"5\",\"total\":\"5703\",\"type\":\"CHEESE1K\",\"uang\":\"134929306\"},{\"bulan\":\"5\",\"total\":\"648663\",\"type\":\"ESL\",\"uang\":\"6645764498\"},{\"bulan\":\"5\",\"total\":\"51958\",\"type\":\"WHP\",\"uang\":\"631994613\"},{\"bulan\":\"6\",\"total\":\"6190\",\"type\":\"CHEESE1K\",\"uang\":\"104527773\"},{\"bulan\":\"6\",\"total\":\"443335\",\"type\":\"ESL\",\"uang\":\"4540123082\"},{\"bulan\":\"6\",\"total\":\"30550\",\"type\":\"ESL500ML\",\"uang\":\"148302378\"}]}";
    Map < String, ArrayList < String >> map;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.settings);
        map = new HashMap < String, ArrayList < String >> ();
        try {
            ArrayList < String > listBulan4 = new ArrayList < String > ();
            ArrayList < String > listBulan5 = new ArrayList < String > ();
            ArrayList < String > listBulan6 = new ArrayList < String > ();

            JSONObject jsonObject = new JSONObject(string);

            JSONArray array = jsonObject.getJSONArray("GetReportResult");

            for (int i = 0; i < array.length(); i++) {
                JSONObject object = array.getJSONObject(i);

                int bulanValue = Integer.parseInt(object.getString("bulan"));

                switch (bulanValue) {
                case 4:
                    listBulan4.add(object.getString("total"));
                    break;
                case 5:
                    listBulan5.add(object.getString("total"));
                    break;
                case 6:
                    listBulan6.add(object.getString("total"));
                    break;
                }
            }

            map.put("total1", listBulan6);
            map.put("total2", listBulan5);
            map.put("total3", listBulan4);

        } catch (Exception e) {
            e.printStackTrace();
        }

        Log.i("test", map.toString());

    }

}

package org.sample；
导入java.util.ArrayList；
导入java.util.HashMap；
导入java.util.Map；
导入org.json.JSONArray；
导入org.json.JSONObject；
导入android.app.Activity；
导入android.os.Bundle；
导入android.util.Log；
公共类活动扩展了活动{
“总人数”是指“2448\”，“类型”是指，“类型”是指“CheSE11k，”，”，”，”，”，”，”，”类型类型是指“类型”是指“中国的一个1k\”，“黄”是指“884747823\”，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，布兰：“：“5\”，“总计：”“5703\”，“类型：”“奶酪1K\”，“黄”\“134929306\”，，，，，，“总人数”是指“648663\”，“类型”是指“ESL\”，“黄”是指“ESL\”，，“黄”是指“664592929306\”，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，，“总人数“：”6“，”总计“：”443335“，”类型“：”ESL“，”黄“：”4540123082“，“{”布朗“：\“6\”、“总计\”：“30550\”、“类型\”：“ESL500ML\”、“黄\”：“148302378\”}）；
Map>Map；
@凌驾
创建时的公共void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.settings）；
map=newhashmap>（）；
试一试{
ArrayListlistBulan4=新的ArrayList（）；
ArrayListlistBulan5=新的ArrayList（）；
ArrayListlistBulan6=新的ArrayList（）；
JSONObject JSONObject=新的JSONObject（字符串）；
JSONArray数组=jsonObject.getJSONArray（“GetReportResult”）；
对于（int i=0；i

您的代码似乎正确

哈希映射不允许重复密钥。您正在尝试放置重复密钥

因此，请尝试使用

ArrayList

诸如此类的事情：

{"GetReportResult":
  [
   {"bulan":"4","total":"2448","type":"CHEESE1K","uang":"8847823"}, 
   {"bulan":"4","total":"572476","type":"ESL","uang":"5863408410"},
   {"bulan":"4","total":"46008","type":"ESL500ML","uang":"234498301"},
   {"bulan":"5","total":"5703","type":"CHEESE1K","uang":"134929306"},
   {"bulan":"5","total":"648663","type":"ESL","uang":"6645764498"},
   {"bulan":"5","total":"51958","type":"WHP","uang":"631994613"},
   {"bulan":"6","total":"6190","type":"CHEESE1K","uang":"104527773"},
   {"bulan":"6","total":"443335","type":"ESL","uang":"4540123082"},
   {"bulan":"6","total":"30550","type":"ESL500ML","uang":"148302378"},
  ]
}

  total1  |   total2   |  total3
----------------------------------
  2448    |   2448     |  2448
  572476  |   572476   |  572476
  46008   |   46008    |  46008

  total1  |   total2   |  total3
----------------------------------
  6190    |   5703     |  2448
  443335  |   648663   |  572476
  30550   |   51958    |  46008

ArrayList < String > listBulan4 = new ArrayList < String > ();
  listBulan4.add(object.getString("total"));

ArrayListlistBulan4=newarraylist（）；
添加（object.getString（“total”）；

好的，我已经更改了它，但是

“total”

值不是来自

“bulan”

。等于（“6”），它来自所有

“bulan”

：（我没有得到它：（你能给我一个更具体的例子吗？你的代码的问题是你正在覆盖映射值。见我的回答值将在循环中被覆盖我得到了这个错误：

错误解析数据org.json.JSONException:Value类型为java.lang.String的jsonString不能转换为JSONObject

@blankon91而不是jsonString放入你的jsonString在这里我已经做了，你能检查一下更多细节吗：这是我在我的日志中得到的=06-28 13:50:18.448:I/test（366）：{}让我们看看