这是我的 JSON 响应，尝试解析此数据时出现 JSON 异常，如何解决此问题。
`{
"meta": {
"code": 200
},
"response": {
"venues": [
{
"id": "4d090451c26ba14344c11c17",
"name": "Hotel Grand Dhillon",
"contact": {
},
"location": {
"lat": 21.200844504492434,
"lng": 81.32280155700252,
"distance": 1457,
"country": "India",
"cc": "IN"
},
"categories": [
{
"id": "4bf58dd8d48988d1fa931735",
"name": "Hotel",
"pluralName": "Hotels",
"shortName": "Hotel",
"icon": {
"prefix": "https:\/\/foursquare.com\/img\/categories_v2\/travel\/hotel_",
"suffix": ".png"
},
"primary": true
}
],
"verified": false,
"restricted": true,
"stats": {
"checkinsCount": 97,
"usersCount": 55,
"tipCount": 2
},
"specials": {
"count": 0,
"items": [
]
},
"hereNow": {
"count": 0,
"groups": [
]
},
"referralId": "v-1381236272"
},
{
"id": "4d2155cf8629224ba2941a87",
"name": "Hotel Bhilai Niwas",
"contact": {
},
"location": {
"lat": 21.178341816944222,
"lng": 81.34224848671207,
"distance": 4447,
"city": "Bhilai",
"state": "Chhattisgarh",
"country": "India",
"cc": "IN"
},
"categories": [
{
"id": "4bf58dd8d48988d1fa931735",
"name": "Hotel",
"pluralName": "Hotels",
"shortName": "Hotel",
"icon": {
"prefix": "https:\/\/foursquare.com\/img\/categories_v2\/travel\/hotel_",
"suffix": ".png"
},
"primary": true
}
],
"verified": false,
"restricted": true,
"stats": {
"checkinsCount": 6,
"usersCount": 6,
"tipCount": 0
},
"specials": {
"count": 0,
"items": [
]
},
"hereNow": {
"count": 0,
"groups": [
]
},
"referralId": "v-1381236272"
},
我想在谷歌地图上显示 field ，在此之前我试图解析这个 JSON 响应 这是我的代码
jsonResult = inputStreamToString(
response.getEntity().getContent()).toString();
JSONObject object = new JSONObject(jsonResult);
venues = object.getJSONArray(TAG_VENUES);//getting exception here,cursor moving from here to catch block
ArrayList<HashMap<String, String>> venuesList = new ArrayList<HashMap<String, String>>();
// looping through All Contacts
for (int i = 0; i < venues.length(); i++) {
JSONObject c = venues.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String name = c.getString(TAG_NAME);
// Location is another JSONObject so
JSONObject location = venues.getJSONObject(i);
String lat = location.getString(TAG_LAT);
String lon = location.getString(TAG_LON);
String distance = location.getString(TAG_DISTANCE);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_ID, id);
map.put(TAG_NAME, name);
map.put(TAG_LAT, lat);
map.put(TAG_LON, lon);
map.put(TAG_DISTANCE, distance);
// adding HashList to ArrayList
venuesList.add(map);
在这里发布日志
10-08 23:21:39.310: W/System.err(21249): org.json.JSONException: No value for venue
10-08 23:21:39.310: W/System.err(21249): at org.json.JSONObject.get(JSONObject.java:354)
10-08 23:21:39.310: W/System.err(21249): at org.json.JSONObject.getJSONArray(JSONObject.java:544)
10-08 23:21:39.310: W/System.err(21249): at com.example.xxx.MainActivity$GetChildList.doInBackground(MainActivity.java:116)
10-08 23:21:39.310: W/System.err(21249): at com.example.xxx.MainActivity$GetChildList.doInBackground(MainActivity.java:1)
10-08 23:21:39.310: W/System.err(21249): at android.os.AsyncTask$2.call(AsyncTask.java:287)
10-08 23:21:39.310: W/System.err(21249): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
10-08 23:21:39.310: W/System.err(21249): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
10-08 23:21:39.310: W/System.err(21249): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
10-08 23:21:39.310: W/System.err(21249): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
10-08 23:21:39.310: W/System.err(21249): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
10-08 23:21:39.320: W/System.err(21249): at java.lang.Thread.run(Thread.java:856)
最佳答案
{ // json object node
"meta": {
"code": 200
},
"response": { // response is a json object
"venues": [ // venues is a json array
{代表json对象节点
[代表json数组节点
解析
JSONObject jb = new JSONObject("jsonstring");
JSONObject jb1 = jb.getJSONObject("response");
JSOnArray venues = jb1.getJSONArray("venues");
现在遍历json数组
{
"meta": {
"code": 200
},
"response": {
"venues": [ // json array venues
{ // json object node
"id": "4d090451c26ba14344c11c17",
"name": "Hotel Grand Dhillon",
"contact": {},
"location": { // json object location with in json object node
"lat": 21.200844504492434,
"lng": 81.32280155700252,
"distance": 1457,
"country": "India",
"cc": "IN"
}
}
]
}
}
for(int i=0;i<venues.length();i++)
{
JSONObject b = venues.getJSONObject(i);
String id = b.getString("id");
Log.i(".......",id);
JSONObject location = b.getJSONObject("location");
String lat = location.getString("lat");
Log.i(".......",lat);
}
关于android - 从 foursquare 的 JSONObject 获取 JSONarray 时出错，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19254853/