我传递的数据会插入到我的MySQL数据库中，但在完成它的工作后，我的应用程序强制关闭，我真的无法弄明白，为什么！这是我的代码和LogCat
06-11 11:17:00.148: I/ApplicationPackageManager(29392): cscCountry is not German : INU
06-11 11:17:02.460: D/dalvikvm(29392): GC_EXTERNAL_ALLOC freed 182K, 47% free 2971K/5575K, external 962K/1036K, paused 42ms
06-11 11:17:15.531: D/dalvikvm(29392): GC_CONCURRENT freed 109K, 44% free 3272K/5831K, external 1129K/1615K, paused 4ms+4ms
06-11 11:17:15.546: E/JSON Parser(29392): Error parsing data org.json.JSONException: Value success of type java.lang.String cannot be converted to JSONObject
06-11 11:17:15.546: W/dalvikvm(29392): threadid=9: thread exiting with uncaught exception (group=0x40018578)
06-11 11:17:15.554: E/AndroidRuntime(29392): FATAL EXCEPTION: AsyncTask #1
06-11 11:17:15.554: E/AndroidRuntime(29392): java.lang.RuntimeException: An error occured while executing doInBackground()
06-11 11:17:15.554: E/AndroidRuntime(29392): at android.os.AsyncTask$3.done(AsyncTask.java:200)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:274)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.FutureTask.setException(FutureTask.java:125)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:308)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.lang.Thread.run(Thread.java:1019)
06-11 11:17:15.554: E/AndroidRuntime(29392): Caused by: java.lang.NullPointerException
06-11 11:17:15.554: E/AndroidRuntime(29392): at com.vesit.fragments.Registration$CreateNewProduct.doInBackground(Registration.java:81)
06-11 11:17:15.554: E/AndroidRuntime(29392): at com.vesit.fragments.Registration$CreateNewProduct.doInBackground(Registration.java:1)
06-11 11:17:15.554: E/AndroidRuntime(29392): at android.os.AsyncTask$2.call(AsyncTask.java:185)
06-11 11:17:15.554: E/AndroidRuntime(29392): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
06-11 11:17:15.554: E/AndroidRuntime(29392): ... 4 more
06-11 11:17:22.234: E/WindowManager(29392): Activity com.vesit.praxis.NavigationMain has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40558578 that was originally added here
06-11 11:17:22.234: E/WindowManager(29392): android.view.WindowLeaked: Activity com.vesit.praxis.NavigationMain has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40558578 that was originally added here
06-11 11:17:22.234: E/WindowManager(29392): at android.view.ViewRoot.<init>(ViewRoot.java:263)
06-11 11:17:22.234: E/WindowManager(29392): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:171)
06-11 11:17:22.234: E/WindowManager(29392): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:114)
06-11 11:17:22.234: E/WindowManager(29392): at android.view.Window$LocalWindowManager.addView(Window.java:424)
06-11 11:17:22.234: E/WindowManager(29392): at android.app.Dialog.show(Dialog.java:241)
06-11 11:17:22.234: E/WindowManager(29392): at com.vesit.fragments.Registration$CreateNewProduct.onPreExecute(Registration.java:64)
06-11 11:17:22.234: E/WindowManager(29392): at android.os.AsyncTask.execute(AsyncTask.java:391)
06-11 11:17:22.234: E/WindowManager(29392): at com.vesit.fragments.Registration$1.onClick(Registration.java:44)
06-11 11:17:22.234: E/WindowManager(29392): at android.view.View.performClick(View.java:2485)
06-11 11:17:22.234: E/WindowManager(29392): at android.view.View$PerformClick.run(View.java:9080)
06-11 11:17:22.234: E/WindowManager(29392): at android.os.Handler.handleCallback(Handler.java:587)
06-11 11:17:22.234: E/WindowManager(29392): at android.os.Handler.dispatchMessage(Handler.java:92)
06-11 11:17:22.234: E/WindowManager(29392): at android.os.Looper.loop(Looper.java:130)
06-11 11:17:22.234: E/WindowManager(29392): at android.app.ActivityThread.main(ActivityThread.java:3687)
06-11 11:17:22.234: E/WindowManager(29392): at java.lang.reflect.Method.invokeNative(Native Method)
06-11 11:17:22.234: E/WindowManager(29392): at java.lang.reflect.Method.invoke(Method.java:507)
06-11 11:17:22.234: E/WindowManager(29392): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
06-11 11:17:22.234: E/WindowManager(29392): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:625)
06-11 11:17:22.234: E/WindowManager(29392): at dalvik.system.NativeStart.main(Native Method)
这是代码
public class Registration extends Fragment {
private ProgressDialog pDialog;
JSONParser jsonParser = new JSONParser();
EditText inputFname;
EditText inputLname;
EditText inputEmail;
EditText inputEventname;
EditText inputContact;
private static String url_create_product = "http://rideconnect.url.ph/registration.php";
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.registration, container, false);
rootView.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.MATCH_PARENT ));
inputFname = (EditText) rootView. findViewById(R.id.inputFname);
inputLname = (EditText) rootView.findViewById(R.id.inputLname);
inputEmail = (EditText) rootView. findViewById(R.id.inputEmail);
inputContact = (EditText) rootView. findViewById(R.id.inputContact);
inputEventname = (EditText) rootView.findViewById(R.id.inputEventname);
Button btnCreateProduct = (Button) rootView. findViewById(R.id.btnCreateProduct);
btnCreateProduct.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
new CreateNewProduct().execute();
}
});
return rootView;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
setHasOptionsMenu(true);
}
class CreateNewProduct extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Generating Coupon. Please Wait... ");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
protected String doInBackground(String... args) {
String fname = inputFname.getText().toString();
String lname = inputLname.getText().toString();
String contact = inputContact.getText().toString();
String email = inputEmail.getText().toString();
String eventname = inputEventname.getText().toString();
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("fname", fname));
params.add(new BasicNameValuePair("lname", lname));
params.add(new BasicNameValuePair("contact", contact));
params.add(new BasicNameValuePair("email", email));
params.add(new BasicNameValuePair("eventname", eventname));
JSONObject json = jsonParser.makeHttpRequest(url_create_product,
"POST", params);
Log.d("Create Response", json.toString());
return null;
}
protected void onPostExecute() {
pDialog.dismiss();
}
}
}
答案 0 :(得分：1)
您的Link会将输出显示为简单字符串，如下所示：
success
您需要JSON作为输出：
{"result":"success"}
示例： json_encode(array("result" => "success"));
答案 1 :(得分：0)
有时候，当您从服务器获取数据时，当您编写String时会添加一些不需要的字符。所以试试这会对你有帮助。
而不是仅返回json对象从
返回return yourjSonObj;
到
return new JSONObject(json.substring(json.indexOf("{"), json.lastIndexOf("}") + 1)
答案 2 :(得分：0)
JSONObject json = jsonParser.makeHttpRequest(url_create_product, "POST", params);
您正在尝试将数据直接转换为JSON Object ..我认为您从服务器获取的数据不是JSON Obect类型..可以是Json Arrray ..如果您尝试将JSOn数组转换为json对象它通过例外.. 你应该测试来自服务器的数据是JSon对象的类型.. ??