Вставка в базу данных MySQL не работает - PullRequest
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Вставка в базу данных MySQL не работает

0 голосов
/ 18 мая 2018

У меня есть простая проблема при загрузке текстов из edittext в базу данных MySQL.В моем приложении я использовал библиотеку залпов, поэтому я следовал учебному пособию о том, как вставить в базу данных, поэтому я применяю все коды.Как только я нажимаю кнопку «Сохранить» в моем приложении.

Приложение закрывается без причины.Просто закрыл сразу, когда я нажал кнопку.

Signature.java 

private SignatureView signatureView;
OutputStream outputStream;
final String insertUrl = "http://192.168.1.101/myfile/insertStudent.php";
EditText txt1;
EditText txt2;
Button btnSave;
final RequestQueue requestQueue = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_signature);//see xml layout

    signatureView = findViewById(R.id.signature_view);
    int colorPrimary = ContextCompat.getColor(this, R.color.colorAccent);
    signatureView.setPenColor(colorPrimary);
    // or like signatureView.setPenColor(Color.RED)

    txt1 = (EditText) findViewById(R.id.FirstName);
    txt2 = (EditText) findViewById(R.id.LastName);
    btnSave = (Button) findViewById(R.id.Save) ;



    btnSave.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            StringRequest request = new StringRequest(Request.Method.POST, insertUrl, new Response.Listener<String>() {
                @Override
                public void onResponse(String response) {

                    System.out.println(response.toString());
                }
            }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {

                }
            }) {

                @Override
                protected Map<String, String> getParams() throws AuthFailureError {
                    Map<String, String> parameters = new HashMap<String, String>();
                    parameters.put("firstname", txt1.getText().toString());
                    parameters.put("lastname", txt2.getText().toString());
                    return parameters;
                }
            };
            requestQueue.add(request);
        }
    });
}

Logcat 

   05-18 11:14:16.354 13227-13342/? E/dalvikvm: Could not find class 'java.beans.Transient', referenced from method com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support.<init>
05-18 11:14:16.354 13227-13342/? W/dalvikvm: VFY: unable to resolve const-class 5489 (Ljava/beans/Transient;) in Lcom/fasterxml/jackson/databind/introspect/JacksonAnnotationIntrospector$Java7Support;
05-18 11:14:16.354 13227-13342/? D/dalvikvm: VFY: replacing opcode 0x1c at 0x0003
05-18 11:14:16.354 13227-13342/? E/dalvikvm: Could not find class 'java.beans.ConstructorProperties', referenced from method com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support.findConstructorName
05-18 11:14:16.354 13227-13342/? W/dalvikvm: VFY: unable to resolve const-class 5488 (Ljava/beans/ConstructorProperties;) in Lcom/fasterxml/jackson/databind/introspect/JacksonAnnotationIntrospector$Java7Support;
05-18 11:14:16.354 13227-13342/? D/dalvikvm: VFY: replacing opcode 0x1c at 0x0006
05-18 11:14:16.354 13227-13342/? E/dalvikvm: Could not find class 'java.beans.Transient', referenced from method com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support.findTransient
05-18 11:14:16.354 13227-13342/? W/dalvikvm: VFY: unable to resolve const-class 5489 (Ljava/beans/Transient;) in Lcom/fasterxml/jackson/databind/introspect/JacksonAnnotationIntrospector$Java7Support;
05-18 11:14:16.354 13227-13342/? D/dalvikvm: VFY: replacing opcode 0x1c at 0x0000
05-18 11:14:16.354 13227-13342/? E/dalvikvm: Could not find class 'java.beans.ConstructorProperties', referenced from method com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector$Java7Support.hasCreatorAnnotation
05-18 11:14:16.354 13227-13342/? W/dalvikvm: VFY: unable to resolve const-class 5488 (Ljava/beans/ConstructorProperties;) in Lcom/fasterxml/jackson/databind/introspect/JacksonAnnotationIntrospector$Java7Support;
05-18 11:14:16.354 13227-13342/? D/dalvikvm: VFY: replacing opcode 0x1c at 0x0000
05-18 11:14:16.354 13227-13342/? W/nAnnotationIntrospector: Unable to load JDK7 annotation types; will have to skip
05-18 11:14:16.354 13227-13342/? W/System.err: WARNING: could not load Java7 Path class
05-18 11:14:26.614 13302-13302/? D/AndroidRuntime: Shutting down VM
05-18 11:14:26.614 13302-13302/? W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x9cc8cb20)
05-18 11:14:26.614 1521-1793/? D/audio_hw_primary: found out /dev/snd/pcmC0D0p
05-18 11:14:26.614 2048-2160/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-Application: Application crash has been observed. 
05-18 11:14:26.614 2048-13351/com.bluestacks.BstCommandProcessor W/BstCommandProcessor-Application: in sendHttpRequest, requestType is of CRASH_APP type but one of the requiredInfo is NULL, crashedApp = com.bluestacks.BstCommandProcessor.BstCrashedAppInfo@4e75e800
05-18 11:14:26.614 13302-13306/? D/dalvikvm: GC_CONCURRENT freed 99K, 23% free 3621K/4664K, paused 2ms+1ms, total 5ms
05-18 11:14:26.614 13302-13302/? I/Process: Sending signal. PID: 13302 SIG: 9
05-18 11:14:26.614 13302-13302/? D/AndroidRuntime: procName from cmdline: com.kyanogen.signature
05-18 11:14:26.614 13302-13302/? E/AndroidRuntime: in writeCrashedAppName, pkgName :com.kyanogen.signature
05-18 11:14:26.614 13302-13302/? D/AndroidRuntime: file written successfully with content: com.kyanogen.signature StringBuffer : ;com.kyanogen.signature
05-18 11:14:26.614 13302-13302/? E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.kyanogen.signature, PID: 13302
    java.lang.NullPointerException
        at com.kyanogen.signature.Signature$1.onClick(Signature.java:93)
        at android.view.View.performClick(View.java:4578)
        at android.view.View$PerformClick.run(View.java:18654)
        at android.os.Handler.handleCallback(Handler.java:733)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:136)
        at android.app.ActivityThread.main(ActivityThread.java:5021)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:827)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:643)
        at dalvik.system.NativeStart.main(Native Method)
05-18 11:14:26.624 1866-1911/system_process W/InputDispatcher: channel '4e9e40a4 com.kyanogen.signature/com.kyanogen.signature.Signature (server)' ~ Consumer closed input channel or an error occurred.  events=0x9
05-18 11:14:26.624 1866-1911/system_process E/InputDispatcher: channel '4e9e40a4 com.kyanogen.signature/com.kyanogen.signature.Signature (server)' ~ Channel is unrecoverably broken and will be disposed!
05-18 11:14:26.624 1866-2036/system_process W/InputDispatcher: Attempted to unregister already unregistered input channel '4e9e40a4 com.kyanogen.signature/com.kyanogen.signature.Signature (server)'
05-18 11:14:26.624 1866-3187/system_process I/ActivityManager: Process com.kyanogen.signature (pid 13302) has died.
05-18 11:14:26.624 1866-3187/system_process W/ActivityManager: Force removing ActivityRecord{4ea2f998 u0 com.kyanogen.signature/.Signature t68}: app died, no saved state
05-18 11:14:26.624 1866-2036/system_process I/WindowState: WIN DEATH: Window{4e9e40a4 u0 com.kyanogen.signature/com.kyanogen.signature.Signature}
05-18 11:14:26.624 1866-3187/system_process D/ActivityManager: TopActivityInfo, pkgName: com.bluestacks.appmart activityName: com.bluestacks.appmart/.MarketPageGrid callingPackage:   bstSpecialAppKeyboardHandlingEnabled = false
    Sending app_launch intent for appName: التطبيقات pkgName: com.bluestacks.appmart
05-18 11:14:26.624 1866-3187/system_process D/WindowManager: in computeScreenConfigurationLocked() -- hardKeyboardAvailable :true  mHardKeyboardAvailable :true   mHardKeyboardEnabled :true
05-18 11:14:26.644 2048-13353/com.bluestacks.BstCommandProcessor D/dalvikvm: GC_FOR_ALLOC freed 1900K, 27% free 7088K/9592K, paused 7ms, total 8ms
05-18 11:14:26.644 2062-2062/com.bluestacks.appmart D/com.bluestacks.appmartMainActivity: Onresume called
    InitViews called
05-18 11:14:26.664 2048-13353/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: command: home 
05-18 11:14:26.664 2048-13353/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-CommandHandler: Launching home Activity, intent: Intent { act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 }
05-18 11:14:26.664 2240-2240/com.bluestacks.appguidance D/GuidanceScreen.Utils: checkAdExists() called with: context = [android.app.ReceiverRestrictedContext@4e730eb4], hostPackageName = [com.bluestacks.appmart], ignoreOccurrence = [true], adScreenService = [null], forceLaunch = [false], doNotSendStats = [false]
05-18 11:14:26.674 1866-3188/system_process D/dalvikvm: GC_FOR_ALLOC freed 2936K, 34% free 10993K/16644K, paused 12ms, total 12ms
05-18 11:14:26.694 1866-3188/system_process D/dalvikvm: GC_FOR_ALLOC freed 2719K, 35% free 10899K/16644K, paused 9ms, total 9ms
05-18 11:14:26.704 1866-1884/system_process D/WindowManager: Sending appClickStats request with data: [package=com.bluestacks.appmart, appname=التطبيقات, appver=16.68, clickloc=system_server]
05-18 11:14:26.704 1866-3188/system_process I/ActivityManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.HOME] flg=0x10200000 cmp=com.bluestacks.appmart/.MarketPageGrid} from pid 2048
05-18 11:14:26.724 1866-2066/system_process D/dalvikvm: GC_FOR_ALLOC freed 2574K, 35% free 10925K/16644K, paused 11ms, total 11ms
05-18 11:14:26.724 1866-3188/system_process D/ActivityManager: TopActivityInfo, pkgName: com.bluestacks.appmart activityName: com.bluestacks.appmart.MarketPageGrid callingPackage: com.bluestacks.BstCommandProcessor  bstSpecialAppKeyboardHandlingEnabled = false
05-18 11:14:26.724 1866-2409/system_process D/InputMethodManagerService: packageName=com.bluestacks.appmart.MarketPageGrid, activityName=null
05-18 11:14:26.744 1866-2066/system_process D/dalvikvm: GC_FOR_ALLOC freed 2558K, 35% free 10964K/16644K, paused 11ms, total 11ms
05-18 11:14:26.744 2048-13353/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: response: {"result":"ok"}
05-18 11:14:26.744 2240-2240/com.bluestacks.appguidance D/GuidanceScreen..AppLaunchReceiver: same as previous package, returning com.bluestacks.appmart
05-18 11:14:26.744 1983-4272/com.android.inputmethod.latin W/Binder: Caught a RuntimeException from the binder stub implementation.
    java.lang.NullPointerException
        at android.inputmethodservice.IInputMethodWrapper.setSessionEnabled(IInputMethodWrapper.java:280)
        at com.android.internal.view.IInputMethod$Stub.onTransact(IInputMethod.java:129)
        at android.os.Binder.execTransact(Binder.java:404)
        at dalvik.system.NativeStart.run(Native Method)
05-18 11:14:26.744 1866-3188/system_process D/ActivityManager: Sending app_launch intent for appName: التطبيقات pkgName: com.bluestacks.appmart
05-18 11:14:26.744 1866-2409/system_process W/InputMethodManagerService: Got RemoteException sending setActive(false) notification to pid 13302 uid 10062
05-18 11:14:26.774 1866-2409/system_process D/dalvikvm: GC_FOR_ALLOC freed 2655K, 35% free 10924K/16644K, paused 10ms, total 10ms
05-18 11:14:26.774 1866-3673/system_process I/ActivityManager: Setting mBooting value to false, currently mBooted = true
05-18 11:14:26.794 1866-2409/system_process D/dalvikvm: GC_FOR_ALLOC freed 2603K, 35% free 10932K/16644K, paused 12ms, total 12ms
05-18 11:14:26.804 2048-13357/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: command: muteappplayer
05-18 11:14:26.804 2048-13357/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-Application: in isSystemReady, isBootCompleted true External storage status: mounted  External storage dir :/storage/sdcard  isExternalStorageRemovable:true
    returning from waitForSystemReady,  isSystemReady = true
05-18 11:14:26.804 2048-13357/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: response: {"result":"ok"}
05-18 11:14:26.814 2048-13358/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: command: StopApp com.kyanogen.signature
05-18 11:14:26.814 2048-13358/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-Application: in isSystemReady, isBootCompleted true External storage status: mounted  External storage dir :/storage/sdcard  isExternalStorageRemovable:true
    returning from waitForSystemReady,  isSystemReady = true
    in isSystemReady, isBootCompleted true External storage status: mounted  External storage dir :/storage/sdcard  isExternalStorageRemovable:true
    returning from waitForSystemReady,  isSystemReady = true
05-18 11:14:26.814 2048-13358/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-CommandHandler: Package : com.kyanogen.signature doesn't exist in secure applist, so setting isSecureAppsReady flag
05-18 11:14:26.824 2048-13358/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-CommandHandler: Broadcasting STOP_APP intent with data: {"package":"com.kyanogen.signature","isArmApp":false} isArmApp: false
05-18 11:14:26.824 2048-13358/com.bluestacks.BstCommandProcessor D/BstCommandProcessor-httpd: response: {"result":"ok"}
05-18 11:14:27.124 1866-1879/system_process D/WindowManager: topDisplayedActivityInfo, appToken: Token{4e9a76f8 ActivityRecord{4e9488ac u0 com.bluestacks.appmart/.MarketPageGrid t1}}

Ответы [ 2 ]

0 голосов
/ 18 мая 2018

Я решил ошибку.Решение заключается в создании такого объекта -> requestQueue = Volley.newRequestQueue (getApplicationContext ());

0 голосов
/ 18 мая 2018

Я понятия не имею, как RequestQueue или что-то еще о том, что вы пытаетесь сделать, работает, но из предложенного мною URL можно немного помочь: 

RequestQueue mRequestQueue;

// Instantiate the cache
Cache cache = new DiskBasedCache(getCacheDir(), 1024 * 1024); // 1MB cap

// Set up the network to use HttpURLConnection as the HTTP client.
Network network = new BasicNetwork(new HurlStack());

// Instantiate the RequestQueue with the cache and network.
mRequestQueue = new RequestQueue(cache, network);

// Start the queue
mRequestQueue.start();

Это выглядиткак минимальный пролог к ​​процессу, так как RequestQueue требует двух аргументов: Cache и Network.Надеюсь, это поможет.

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