我正在解析一个json，这是一个json object开始。它有一个数组html_attributions[]和另一个数组results[]
现在，当我从 中创建json字符串时URL，我可以看到我的 json 字符串即将到来。但是在从我拥有的 json 字符串创建 json 对象时illegalArugumentException，illegal character in scheme at index 0.
我的目标是从 json 中找到位置并在我的谷歌地图视图中标记它。
这是我的异步任务类..
class LocationJSON extends AsyncTask<String, Integer, Long> {
@Override
protected Long doInBackground(String... arg0) {
// TODO Auto-generated method stub
JSONParser jParser = new JSONParser();String url = jParser.getJSONStringFromUrl("https://maps.googleapis.com/maps/api/place/search/json?location=37.78583400,-122.40641700&radius=1500&types=gas_station&sensor=true&key=AIzaSyBIwW4m6xINOhM_j7hckMAbD3oks_fkLFc");
//main json abject
jsonObject = jParser.getJSONObject(url);
//get to the results array:
try {
JSONArray htmlArray = jsonObject.getJSONArray("html_attributions");
JSONArray resultsArray = jsonObject.getJSONArray("results");
//get to the geometry objects
for (int i = 0; i < resultsArray.length(); i++) {
JSONObject geometry = resultsArray.getJSONObject(i);
//get to the location object
JSONObject location = geometry.getJSONObject("location");
//get to the lat string
double lati = Double.parseDouble(location.getString("Lat"));
double longi = Double.parseDouble(location.getString("lng"));
//create a latlong object
place = new LatLng(lati,longi);
/*//set the map
Marker melbourne = map.addMarker(new MarkerOptions()
.position(place)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_launcher)));
//set the camera
cameraUpdate = CameraUpdateFactory.newLatLngZoom(place, 10);
map.animateCamera(cameraUpdate);*/
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Long result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
//set the map
Marker melbourne = map.addMarker(new MarkerOptions()
.position(place)
.icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_launcher)));
//set the camera
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(place, 10);
map.animateCamera(cameraUpdate);
}
}
//这是我的 jsonparser 类 public class JSONParser {
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
static JSONArray jArray = null;
// constructor
public JSONParser() {
}
public String getJSONStringFromUrl(String url) {
// Making HTTP request
try {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// return JSON String
return json;
}
public JSONObject getJSONObject(String url) {
// try parse the string to a JSON object
getJSONStringFromUrl(url);
try {
jObj = new JSONObject(json);
} catch (JSONException e) {
Log.e("JSON Parser Object",
"Error parsing jsonObject " + e.toString());
}
// return JSON String
return jObj;
}
public JSONArray getJSONArray(String url) {
// try parse the string to a JSON array
getJSONStringFromUrl(url);
try {
jArray = new JSONArray(json);
} catch (JSONException e) {
Log.e("JSON Parser Array",
"Error parsing jsonArray " + e.toString());
}
// return JSON String
return jArray;
}
}
这是json数据
{
"html_attributions": [
],
"results": [
{
"geometry": {
"location": {
"lat": 37.7774450,
"lng": -122.4048230
}
},
"icon": "http://maps.gstatic.com/mapfiles/place_api/icons/gas_station-71.png",
"id": "8e31a915604dd3597225152bfd3ec6f9bfa39395",
"name": "Chevron",
"photos": [
{
"height": 640,
"html_attributions": [
"From a Google User"
],
"photo_reference": "CnRiAAAADAcSOQpR_AW86egDLCWLpuEf00zuXUVFbcxh5-zCY5OzIUtJx764rn2mLnWTMA0xsz3AG7e0ZbU3n_GTJcOI0O15N1Va34GhUMiXirAw6h0DUETlElRwzvNjv1sQoFdimUYCOg-Us4ow9hoeq4cx-RIQSqRYof89YFdoVKRokkHN6RoUT4nJ4eofBuD1pJgwVeIKiaOlVo4",
"width": 480
}
],
"rating": 3.20,
"reference": "CnRkAAAAQ8TbCf9PqmO-_2-vgbFdrKE9j5PIknybR43IdTMziGYAuj5yOW3PcCCfLMgaeEM0ulLWU2WI3-YX14d1bza8tDYAEQlsP4JMTRT1RAeCm_CzhhhcZaB6UZ2Q2_f33iNHxMvoPumNwef6OXXmPQkusxIQ80SUv_R8odDO1dds5ovKZBoURT26TM5W2qKebWGQxfPE0SRgLwQ",
"types": [
"car_repair",
"gas_station",
"establishment"
],
"vicinity": "1000 Harrison Street, San Francisco"
},
],
"status": "OK"
}