Android中可扩展ListView的JSON解析

Question

我是Android的新手，我想在Android中制作Expandable Listview ，但是在解析json时遇到问题。 我想解析以下json：

[
  {
    "ref": "000051",
    "name": "DURA GREEN",
    "desc": "DURA GREEN 30 TO 0",
    "price": "29.000",
    "skus": [
      {
        "barcode": "000051046008",
        "color": "KHAKI R",
        "size": "42",
        "price": "29.00"
      },
      {
        "barcode": "000051046009",
        "color": "KHAK",
        "size": "44",
        "price": "29.00"
      }
    ]
  },
  {
    "ref": "000072",
    "name": "WHITE DURA",
    "desc": "WHITE DURABLE 30 - 54",
    "price": "29.000",
    "skus": [
      {
        "barcode": "000072043010",
        "color": "WHITE L",
        "size": "48",
        "price": "29.00"
      },
      {
        "barcode": "000072043011",
        "color": "WHITE L",
        "size": "50",
        "price": "29.00"
      }
    ]
  },
  {
    "ref": "000078",
    "name": "EBAY KARLSON",
    "desc": "SMART WHITE TROUSERS WITH PRIE",
    "price": "34.000",
    "skus": [
      {
        "barcode": "000078042002",
        "color": "WHITE R",
        "size": "30",
        "price": "34.00"
      }
    ]
  },
  {
    "ref": "000053",
    "name": "DURA BLACK",
    "desc": "DURA BLACK WAIST 30 TO 54",
    "price": "19.000",
    "skus": [
      {
        "barcode": "000053038004",
        "color": "BLACK S",
        "size": "36",
        "price": "19.00"
      }
    ]
  },
  {
    "ref": "000080",
    "name": "DURA WHITE  EBY",
    "desc": "WHITE DURABLE 30 - 44",
    "price": "34.000",
    "skus": [
      {
        "barcode": "000080042007",
        "color": "WHITE R",
        "size": "51",
        "price": "37.00"
      }
    ]
  },
  {
    "ref": "000025",
    "name": "DURABLEPRESS",
    "desc": "DURABLEPRESS 30 TO 50 WAIST",
    "price": "19.000",
    "skus": [
      {
        "barcode": "000025022002",
        "color": "NAVY S",
        "size": "30",
        "price": "19.00"
      },
      {
        "barcode": "000025022003",
        "color": "NAVY S",
        "size": "30",
        "price": "19.00"
      }
    ]
  }
]

LogCat将错误显示为：

08-03 23：38：34.664：W / System.err（23554）：org.json.JSONException：索引2超出范围[0..2）08-03 23：38：34.674：W / System.err（ 23554）：位于org.json.JSONArray.get（JSONArray.java:282）08-03 23：38：34.674：W / System.err（23554）：位于org.json.JSONArray.getJSONObject（JSONArray.java:510 ）08-03 23：38：34.674：W / System.err（23554）：位于com.example.webservice.NetworkOperation.SearchList（NetworkOperation.java:654）08-03 23：38：34.674：W / System.err （23554）：位于com.example.webservice.NetworkOperation.doInBackground（NetworkOperation.java:98）08-03 23：38：34.674：W / System.err（23554）：位于com.example.webservice.NetworkOperation.doInBackground（ NetworkOperation.java:1）08-03 23：38：34.674：W / System.err（23554）：at android.os.AsyncTask $ 2.call（AsyncTask.java:288）08-03 23：38：34.674：W /System.err(23554）：在java.util.concurrent.FutureTask.run（FutureTask.java:237）08-03 23：38：34.674：W / System.err（23554）：在android.os.AsyncTask $ SerialExecutor $ 1.run（AsyncTask.java:231）08-03 23：38：34.674：W / System.err（23554）：at java.util .concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112）08-03 23：38：34.674：W / System.err（23554）：at java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:587） 08-03 23：38：34.674：W / System.err（23554）：at java.lang.Thread.run（Thread.java:841）

使用的代码是：

try {
            group_list = new ArrayList<Model_Search_Group>();
            ArrayList<Model_Search_Child> child_list;
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            result = httpClient.execute(postRequest, responseHandler);
            System.out.println("---result" + result);
            JSONArray jsonarray = new JSONArray(result);
            for (int i = 0; i < jsonarray.length(); i++) {
                child_list = new ArrayList<Model_Search_Child>();
                JSONObject jsonObj = jsonarray.getJSONObject(i);
                System.out.println("---json" + jsonObj);
                Model_Search_Group data = new Model_Search_Group();
                data.setItemRef((jsonObj.getString("ref")));
                data.setName((jsonObj.getString("name")));
                data.setDesc((jsonObj.getString("desc")));
                data.setPrice((jsonObj.getString("price")));
                JSONArray obj2 = jsonObj.getJSONArray("skus");

                for (int j = 0; j < obj2.length(); j++) {
                    JSONObject json = obj2.getJSONObject(i);
                    System.out.println("---json" + json);
                    Model_Search_Child data2 = new Model_Search_Child();
                    data2.setBarcode((json.getString("barcode")));
                    data2.setColor((json.getString("color")));
                    data2.setSize((json.getString("size")));
                    data2.setPrice(json.getString("price"));
                    child_list.add(data2);
                }

                data.setChildItems(child_list);
                group_list.add(data);
                System.out.println("groupsize" + group_list.size());
            }

Answer 1

在第二个for循环中，替换JSONObject json = obj2.getJSONObject(i); 通过JSONObject json = obj2.getJSONObject(j);