解析json时出现异常
{
"LIVE": {
"CONTENTS": [
{
"UID":"488b93abb60",
"NAME":"career will be in 2013",
"SHORTDSEC":"How Salman Shahrukhs career will be in 2013 Deepika Ranbir wish fans a Happy New Year more",
"SYNOPSIS":"",
"TITLE":"How Salman Shahrukhs career will be in 2013",
"SMALLIMAGE":"in_Traffic_PoliceBKBKM61.jpg",
"BIGIMAGE":"in_Traffic_PoliceBKBKM154.jpg",
"URL2G":"h_fans_a_Happy_New_Year_more.3gp",
"URL3G":"sh_fans_a_Happy_New_Year_more_3g.mp4"
},
{
"UID":"5b72b81cc632",
"NAME":"Is Mumbai police biased towards Salman",
"SHORTDSEC":"Is Mumbai police biased towards Salman Top 10 Bollywood controversies of 2012 more news",
"SYNOPSIS":"",
"TITLE":"Is Mumbai police biased towards Salman",
"SMALLIMAGE":"_police_biased_towards_Salman61.jpg",
"BIGIMAGE":"i_police_biased_towards_Salman154.jpg",
"URL2G":"10_Bollywood_controversies_of_2012_more_news.3gp",
"URL3G":"_Bollywood_controversies_of_2012_more_news_3g.mp4"
},
{
"UID":"5488b93abb60",
"NAME":"How Salman Shahrukhs career will be in 2013",
"SHORTDSEC":"How Salman Shahrukhs career will be in 2013 Deepika Ranbir wish fans a Happy New Year more",
"SYNOPSIS":"",
"TITLE":"How Salman Shahrukhs career will be in 2013",
"SMALLIMAGE":"be_in_Traffic_PoliceBKBKM61.jpg",
"BIGIMAGE":"raffic_PoliceBKBKM154.jpg",
"URL2G":"ans_a_Happy_New_Year_more.3gp",
"URL3G":"r_wish_fans_a_Happy_New_Year_more_3g.mp4"
},
]
}
}
源代码
public class GetData extends AsyncTask<String, Void, String> {
private ProgressDialog progress = null;
@Override
protected String doInBackground(String... params) {
return getJSONString(params[0]);
}
private String getJSONString(String url) {
String jsonString = null;
HttpURLConnection linkConnection = null;
try {
URL linkurl = new URL(url);
linkConnection = (HttpURLConnection) linkurl.openConnection();
int responseCode = linkConnection.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
InputStream linkinStream = linkConnection.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int j = 0;
while ((j = linkinStream.read()) != -1) {
baos.write(j);
}
byte[] data = baos.toByteArray();
jsonString = new String(data);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
if (linkConnection != null) {
linkConnection.disconnect();
}
}
return jsonString;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
progress = ProgressDialog.show(MainActivity.this, "", "Loading...");
}
@Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
if (null != progress && progress.isShowing()) {
progress.dismiss();
}
if (null == result || result.length() == 0) {
Toast.makeText(MainActivity.this, "No data found from web!!!",
Toast.LENGTH_SHORT).show();
MainActivity.this.finish();
} else {
try {
JSONObject mainJson = new JSONObject(result);
JSONObject jsonObject = mainJson.getJSONObject(OBJECT_NAME);
JSONArray jsonArray = jsonObject.getJSONArray(ARRAY_NAME);
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject objJson = jsonArray.getJSONObject(i);
Log.d("UID=", objJson.getString(UID));
Log.d("NAME=", objJson.getString(NAME));
Log.d("SHORTDESC=", objJson.getString(SHORTDSEC));
Log.d("TITLE=", objJson.getString(TITLE));
Log.d("SMALLIMAGE=", objJson.getString(SMALLIMAGE));
Log.d("BIGIMAGE=", objJson.getString("BIGIMAGE"));
Log.d("URL2G=", objJson.getString(URL2G));
Log.d("URL3G=", objJson.getString(URL3G));
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
异常,日志猫
org.json.JSONException: Value at 8 is null.
W/System.err( 833): at org.json.JSONArray.get(JSONArray.java:259)
W/System.err( 833): at org.json.JSONArray.getJSONObject(JSONArray.java:480)
W/System.err( 833): at com.example.chhotatv.MainActivity$GetData.onPostExecute(MainActivity.java:99)
W/System.err( 833): at com.example.chhotatv.MainActivity$GetData.onPostExecute(MainActivity.java:1)
W/System.err( 833): at android.os.AsyncTask.finish(AsyncTask.java:417)
W/System.err( 833): at android.os.AsyncTask.access$300(AsyncTask.java:127)
W/System.err( 833): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:429)
W/System.err( 833): at android.os.Handler.dispatchMessage(Handler.java:99)
W/System.err( 833): at android.os.Looper.loop(Looper.java:123)
W/System.err( 833): at android.app.ActivityThread.main(ActivityThread.java:4627)
W/System.err( 833): at java.lang.reflect.Method.invokeNative(Native Method)
W/System.err( 833): at java.lang.reflect.Method.invoke(Method.java:521)
W/System.err( 833): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
W/System.err( 833): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
W/System.err( 833): at dalvik.system.NativeStart.main(Native Method)