Java 我的任务中有一些错误

我传递的数据确实会被插入到我的MySQL数据库中，但在它完成任务后，我的应用程序强制关闭，我真的不明白，为什么！这是我的代码和日志

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)

06-11 11:17:00.148:I/ApplicationPackageManager（29392）：CSC国家/地区不是德语：INU
06-11:17:02.460:D/dalvikvm（29392）：GC_外部分配释放182K，47%释放2971K/5575K，外部962K/1036K，暂停42ms
06-11:17:15.531:D/dalvikvm（29392）：GC_并发释放109K，44%释放3272K/5831K，外部1129K/1615K，暂停4ms+4ms
06-11:17:15.546:E/JSON解析器（29392）：解析数据org.JSON.JSONException时出错：java.lang.String类型的值成功无法转换为JSONObject
06-11:17:15.546:W/dalvikvm（29392）：threadid=9:线程以未捕获异常退出（组=0x40018578）
06-11:17:15.554:E/AndroidRuntime（29392）：致命异常：AsyncTask#1
06-11:17:15.554:E/AndroidRuntime（29392）：java.lang.RuntimeException:执行doInBackground（）时出错
06-11:17:15.554:E/AndroidRuntime（29392）：在android.os.AsyncTask$3.done（AsyncTask.java:200）
06-11:17:15.554:E/AndroidRuntime（29392）：位于java.util.concurrent.FutureTask$Sync.innerSetException（FutureTask.java:274）
06-11:17:15.554:E/AndroidRuntime（29392）：位于java.util.concurrent.FutureTask.setException（FutureTask.java:125）
06-11:17:15.554:E/AndroidRuntime（29392）：位于java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:308）
06-11:17:15.554:E/AndroidRuntime（29392）：在java.util.concurrent.FutureTask.run（FutureTask.java:138）
06-11:17:15.554:E/AndroidRuntime（29392）：位于java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1088）
06-11:17:15.554:E/AndroidRuntime（29392）：位于java.util.concurrent.ThreadPoolExecutor$Worker.run（ThreadPoolExecutor.java:581）
06-11:17:15.554:E/AndroidRuntime（29392）：在java.lang.Thread.run（Thread.java:1019）
06-11:17:15.554:E/AndroidRuntime（29392）：由以下原因引起：java.lang.NullPointerException
06-11:17:15.554:E/AndroidRuntime（29392）：在com.vesit.fragments.Registration$CreateNewProduct.doInBackground（Registration.java:81）
06-11:17:15.554:E/AndroidRuntime（29392）：在com.vesit.fragments.Registration$CreateNewProduct.doInBackground（Registration.java:1）
06-11:17:15.554:E/AndroidRuntime（29392）：在android.os.AsyncTask$2.call（AsyncTask.java:185）
06-11:17:15.554:E/AndroidRuntime（29392）：在java.util.concurrent.FutureTask$Sync.innerRun（FutureTask.java:306）
06-11:17:15.554:E/AndroidRuntime（29392）：。。。4更多
06-11:17:22.234:E/WindowManager（29392）：Activity com.vesit.praxis.NavigationMain泄漏了window com.android.internal.policy.impl.PhoneWindow$DecorView@40558578原来是加在这里的
06-11 11:17:22.234:E/WindowManager（29392）：android.view.WindowLeaked:Activity com.vesit.praxis.NavigationMain已泄漏window com.android.internal.policy.impl.PhoneWindow$DecorView@40558578原来是加在这里的
06-11:17:22.234:E/WindowManager（29392）：在android.view.ViewRoot（ViewRoot.java:263）上
06-11:17:22.234:E/WindowManager（29392）：在android.view.WindowManagerImpl.addView（WindowManagerImpl.java:171）
06-11:17:22.234:E/WindowManager（29392）：在android.view.WindowManagerImpl.addView（WindowManagerImpl.java:114）
06-11:17:22.234:E/WindowManager（29392）：在android.view.Window$LocalWindowManager.addView（Window.java:424）
06-11:17:22.234:E/WindowManager（29392）：在android.app.Dialog.show（Dialog.java:241）上
06-11:17:22.234:E/WindowManager（29392）：位于com.vesit.fragments.Registration$CreateNewProduct.onPreExecute（Registration.java:64）
06-11:17:22.234:E/WindowManager（29392）：在android.os.AsyncTask.execute（AsyncTask.java:391）
06-11:17:22.234:E/WindowManager（29392）：在com.vesit.fragments.Registration$1.onClick（Registration.java:44）
06-11:17:22.234:E/WindowManager（29392）：在android.view.view.performClick（view.java:2485）上
06-11:17:22.234:E/WindowManager（29392）：在android.view.view$PerformClick.run（view.java:9080）
06-11:17:22.234:E/WindowManager（29392）：位于android.os.Handler.handleCallback（Handler.java:587）
06-11:17:22.234:E/WindowManager（29392）：位于android.os.Handler.dispatchMessage（Handler.java:92）
06-11:17:22.234:E/WindowManager（29392）：在android.os.Looper.loop（Looper.java:130）上
06-11:17:22.234:E/WindowManager（29392）：位于android.app.ActivityThread.main（ActivityThread.java:3687）
06-11:17:22.234:E/WindowManager（29392）：位于java.lang.reflect.Method.Invokenactive（本机方法）
06-11:17:22.234:E/WindowManager（29392）：位于java.lang.reflect.Method.invoke（Method.java:507）
06-11:17:22.234:E/WindowManager（29392）：位于com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run（ZygoteInit.java:867）
06-11:17:22.234:E/WindowManager（29392）：位于com.android.internal.os.ZygoteInit.main（ZygoteInit.java:625）
06-11:17:22.234:E/WindowManager（29392）：在dalvik.system.NativeStart.main（本机方法）

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();
    }
}
}

公共类注册扩展片段{
私人对话；
JSONParser JSONParser=新的JSONParser（）；
编辑文本输入名称；
编辑文本输入名；
编辑文本输入电子邮件；
EditText inputEventname；
编辑文本输入联系人；
私有静态字符串url\u创建\u产品=”http://rideconnect.url.ph/registration.php";
@凌驾
创建视图上的公共视图（布局、充气机、视图组容器、，
Bundle savedInstanceState）{
视图根视图=充气机。充气（R.layout.registration，container，false）；
setLayoutParams（新的LayoutParams（LayoutParams.MATCH_父级，LayoutParams.MATCH_父级））；
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）；
输入事件
{"result":"success"}

return yourjSonObj;

return new JSONObject(json.substring(json.indexOf("{"), json.lastIndexOf("}") + 1)

JSONObject json = jsonParser.makeHttpRequest(url_create_product, "POST", params);