我从服务器获取数据并存储在我的Android应用程序中，但我得到例外。
错误消息：JSONArray无法转换为JSONObject。
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
if (result) {
Log.d("response", response.toString());
JSONArray discoverArray = (JSONArray) response.optJSONArray("users");
ArrayList<Discover> discovers = new ArrayList<Discover>();
if (discoverArray != null) {
for (int i = 0; i < discoverArray.length(); i++) {
JSONObject discoverObj = (JSONObject) discoverArray.opt(i);
if (discoverObj != null) {
Discover discover = new Discover();
discover.setAge(discoverObj.optString("age"));
discover.setMutualFriend(discoverObj.optInt("mutualFriend"));
discover.setMutualInterest(discoverObj.optInt("mutualInterest"));
discover.setName(discoverObj.optString("name"));
discovers.add(discover);
}
}
}
logcat的：
org.json.JSONException：Value [{“locationCity”：null，“fbCityName”：“Százhalombatta”，“fbCityId”：“105979396100282”，“lastUpdate”：“2014-03-05 17:31:13” “区域”： “HU-HU”， “locationLongitude”： “20”， “图片”：[{ “顺序”：1， “ID”：假， “URL”：“HTTPS：//graph.facebook。 COM / 100001290188792 /图片/宽度= 600安培;高度= 600安培;类型=正方形 “}]，” 姓？ “：” 伊洛娜”， “androidPushType”：空， “反弹”： “0”， “androidPush”：空， “id”：“20916”，“subscribe”：“1”，“locationLatitude”：“47”，“facebook”：“100001290188792”，“name”：“KarácsonyIlona”，“性别”：“2”，“ dateRegister“：”2013-10-05 22:31:31“，”orientation“：”1“，”hash“：”37e8fd18cb29583879616c47ab87072e“，”iphonePush“：null，”locationRadius“：”30“，”fbLongitude“： “18.9333”，“firstname”：“Karácsony”，“lastLogin”：“2014-01-15 10:13:35”，“email”：“cusi28@freemail.hu”，“iphonePushType”：null，“dob”日期null， “活性”： “1”， “fbLatitude”： “47.3333”， “fbAccessToken”：“CAAFiaFvj7I0BABZBZBXVwfs6tBSjoIWL133Ehkuzv0y39KziqvfBYYsPs1ep0mb8nHwO6OXw82qwQOusyuO9R5Aq7QcvY4I3xWh0eoxRkp40VZB3ZBITu2Mq5ZAl0RtWLwIdqtIIKiZA 7Rh6WJz2cJRvKkHFm9TvzXTrUsVW6HvqeuYpL1q3sk“}，{”locationCity“：null，”fbCityName“：null，”fbCityId“：null，”lastUpdate“：”2013-11-24 22:33:01“，”locale“：”hu-HU“， “locationLongitude”： “20”， “图片”：[{ “顺序”：1， “ID”：假， “URL”：“https://graph.facebook.com/100001346586576/picture/?width=600&高度= 600安培;类型=正方形 “}]，” 姓 “：” Bognár”， “androidPushType”：空， “反弹”： “0”， “androidPush”：空， “ID”： “20954”， “订阅” ：“1”，“locationLatitude”：“47”，“facebook”：“100001346586576”，“名称”：“SzaszyBognár”，“性别”：“2”，“dateRegister”：“2013-10-06 22： 18:14" ， “定向”： “1”， “散列”： “f18cad1db764dd7fe394ac4e4707b84a”， “iphonePush”：NULL， “locationRadius”： “30”， “fbLongitude”：NULL， “姓名”： “Szaszy”，” lastLogin“：”2013-10-06 22:18:14“，”email“：null，”iphonePushType“：null，”dob“：null，”active“：”1“，”fbLatitude“：null，”fbAccessToken “：” CAAFiaFvj7I0BAHohcV2ZCbUZC8sx1vhv2ylYBehttW22kmyLz2YdVpoZAabxSQPWPzQwUZAyCQCDRTMxPZCH2buyOkxFrcX7cefZBMUD2rbFZAbLbQZA6gXnHJ4zWJsroh1mKOlnfRjoNkyXTpG4csLzfTfLLydUYHtNKOpAiQa1VLkrtrKFv1dz” }，{“locationCity”：“2231932”，“fbCityName”：null，“fbCityId”：null，“lastUpdate”：“2013-11-25 22:33:01”，“locale”：“hu-HU”， “locationLongitude”： “19.08333300000”， “图片”：[{ “顺序”：1， “ID”：假， “URL”：“https://graph.facebook.com/559072666/picture/?width=600&高度= 600安培;类型=正方形 “}]，” 姓 “：” Kerekes”， “androidPushType”：空， “反弹”： “0”， “androidPush”：空， “ID”： “20968”， “订阅” ：“1”，“locationLatitude”：“47.50000000000”，“facebook”：“559072666”，“名称”：“Zsofia Kerekes”，“性别”：“2”，“dateRegister”：“2013-10-07 10： 47:34" ， “定向”： “1”， “散列”： “4d9eb81eca14f5f362c2813c0c2fe3f3”， “iphonePush”：NULL， “locationRadius”： “10”， “fbLongitude”：NULL， “姓名”： “若菲奥”，” lastLogin“：”2013-10-07 10:47:34“，”email“：”zs.kerekes.13 @ gmail.com“，”iphonePushType“：null，”dob“：null，”active“：”1 “ ”fbLatitude“：空， ”fbAccessToken“：” CAAFiaFvj7I0BAKCdRjhUiNZBDkWcovRfoEJnKo2pkoYDpnW13PqptEr9FoIeJGLRD1f6dItf9sGhPcReWDdXY3qpEZCPFTp3YK6BOPaDzlY6834PFALImlFOF6uPQBnD2tIC0DYtCZAB1Jvr7jCD6at4MDIi9IHWiEUklj5cFLSzeirYZAhS0JcY7GOi9T org.json.JSONArray类型的0ZD“}]无法转换为JSONObject
[
{
"active": "1",
"androidPush": null,
"androidPushType": null,
"bounce": "0",
"dateRegister": "2013-10-05 22:31:31",
"dob": null,
"email": "dwdwdwd",
"facebook": "wsda",
"fbAccessToken": "wdwdw",
"fbCityId": "105979396100282",
"fbCityName": "Sz\u00e1zhalombatta",
"fbLatitude": "47.3333",
"fbLongitude": "18.9333",
"firstname": "Kar\u00e1csony",
"gender": "2",
"hash": "wwwwwwwwww",
"id": "20916",
"iphonePush": null,
"iphonePushType": null,
"lastLogin": "2014-01-15 10:13:35",
"lastUpdate": "2014-03-05 17:31:13",
"lastname": "dd",
"locale": "hu-HU",
"locationCity": null,
"locationLatitude": "47",
"locationLongitude": "20",
"locationRadius": "30",
"orientation": "1",
"pictures": [
{
"id": false,
"order": 1,
"url": "dddd"
}
],
"subscribe": "1"
},
{
"active": "1",
"androidPush": null,
"androidPushType": null,
"bounce": "0",
"dateRegister": "2013-10-06 22:18:14",
"dob": null,
"email": null,
"facebook": "ddddd",
"fbAccessToken": "dddwdwdw",
"fbCityId": null,
"fbCityName": null,
"fbLatitude": null,
"fbLongitude": null,
"firstname": "dwdwdw",
"gender": "2",
"hash": "ddwdw",
"id": "20954",
"iphonePush": null,
"iphonePushType": null,
"lastLogin": "2013-10-06 22:18:14",
"lastUpdate": "2013-11-24 22:33:01",
"lastname": "wdwdw",
"locale": "hu-HU",
"locationCity": null,
"locationLatitude": "47",
"locationLongitude": "20",
"locationRadius": "30",
"name": "ddddr",
"orientation": "1",
"pictures": [
{
"id": false,
"order": 1,
"url": "wwwww"
}
],
"subscribe": "1"
},
{
"active": "1",
"androidPush": null,
"androidPushType": null,
"bounce": "0",
"dateRegister": "2013-10-07 10:47:34",
"dob": null,
"email": "asdasd",
"facebook": "ddddd",
"fbAccessToken": "dddd",
"fbCityId": null,
"fbCityName": null,
"fbLatitude": null,
"fbLongitude": null,
"firstname": "ddwwda",
"gender": "2",
"hash": "dwwdwdwdw",
"id": "20968",
"iphonePush": null,
"iphonePushType": null,
"lastLogin": "2013-10-07 10:47:34",
"lastUpdate": "2013-11-25 22:33:01",
"lastname": "ddddd",
"locale": "hu-HU",
"locationCity": "2231932",
"locationLatitude": "47.50000000000",
"locationLongitude": "19.08333300000",
"locationRadius": "10",
"name": "wwwwwww",
"orientation": "1",
"pictures": [
{
"id": false,
"order": 1,
"url": "photo"
}
],
"subscribe": "1"
}
]
非常感谢你的帮助。
答案 0 :(得分：0)
替换
JSONObject discoverObj = (JSONObject) discoverArray.opt(i);
与
JSONObject discoverObj = discoverArray.getJSONObject(i);
查看以下代码
@Override
protected void onPostExecute(Boolean result) {
super.onPostExecute(result);
if (result) {
Log.d("response", response.toString());
JSONArray discoverArray = (JSONArray) response.optJSONArray("users");
ArrayList<Discover> discovers = new ArrayList<Discover>();
if (discoverArray != null) {
for (int i = 0; i < discoverArray.length(); i++) {
JSONObject discoverObj = discoverArray.getJSONObject(i);
if (discoverObj != null) {
Discover discover = new Discover();
discover.setAge(discoverObj.optString("age"));
discover.setMutualFriend(discoverObj.optInt("mutualFriend"));
discover.setMutualInterest(discoverObj.optInt("mutualInterest"));
discover.setName(discoverObj.optString("name"));
discovers.add(discover);
}
}
}