I have encountered a weird problem. I was querying a database table for a list of words and was able to get the list. But I am not being able to update that table. The weird thing is, the logcat is showing Code 14 error. I uninstalled the app, re-ran it so the db is freshly copied, But nothing has changed.
Here's the dbHandler code:
public VocabDatabase(Context context) {
super(context, DB_NAME, null, 1);
this.myContext = context;
this.DB_PATH = context.getApplicationInfo().dataDir + "/databases/";
}
/**
* Creates a empty database on the system and rewrites it with your own database.
*/
public void createDataBase() throws IOException {
boolean dbExist = checkDataBase();
if (dbExist) {
//do nothing - database already exist
} else {
//By calling this method and empty database will be created into the default system path
//of your application so we are gonna be able to overwrite that database with our database.
this.getWritableDatabase();
try {
copyDataBase();
} catch (IOException e) {
throw new Error("Error copying database");
}
}
}
/**
* Check if the database already exist to avoid re-copying the file each time you open the application.
*
* #return true if it exists, false if it doesn't
*/
private boolean checkDataBase() {
this.getReadableDatabase();
SQLiteDatabase checkDB = null;
try {
String myPath = DB_PATH;
checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READWRITE);
} catch (SQLiteException e) {
e.printStackTrace();
}
if (checkDB != null) {
checkDB.close();
}
return (checkDB != null) ? true : false;
}
private boolean checkDataBaseAlt(){
File chkdb = new File(DB_PATH);
return chkdb.exists();
}
/**
* Copies your database from your local assets-folder to the just created empty database in the
* system folder, from where it can be accessed and handled.
* This is done by transfering bytestream.
*/
private void copyDataBase() throws IOException {
//Open your local db as the input stream
InputStream myInput = myContext.getAssets().open(DB_NAME);
// Path to the just created empty db
String outFileName = DB_PATH + DB_NAME;
//Open the empty db as the output stream
OutputStream myOutput = new FileOutputStream(outFileName);
//transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length = 0;
while ((length = myInput.read(buffer)) > 0) {
myOutput.write(buffer, 0, length);
}
//Close the streams
myOutput.flush();
myOutput.close();
myInput.close();
}
public void openDataBase() throws SQLException {
//Open the database
String myPath = DB_PATH + DB_NAME;
myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READWRITE);
}
#Override
public synchronized void close() {
if (myDataBase != null)
myDataBase.close();
super.close();
}
#Override
public void onCreate(SQLiteDatabase db) {
}
#Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (newVersion > oldVersion) {
try {
copyDataBase();
} catch (Exception e) {
e.printStackTrace();
}
}
}
// Add your public helper methods to access and get content from the database.
// You could return cursors by doing "return myDataBase.query(....)" so it'd be easy
// to you to create adapters for your views.
//add your public methods for insert, get, delete and update data in database.
public Cursor query(String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String having, String orderBy) {
SQLiteDatabase db = this.getWritableDatabase();
return db.query(table, columns, selection, selectionArgs, groupBy, having, orderBy);
}
public long insert(String table, String nullColumnHack, ContentValues contentValues) {
SQLiteDatabase db = this.getWritableDatabase();
return db.insert(table, nullColumnHack, contentValues);
}
public Cursor rawQuery(String string, String[] selectionArguments) {
SQLiteDatabase db = this.getWritableDatabase();
return db.rawQuery(string, selectionArguments);
}
public long update(String table, ContentValues contentValues, String whereClause, String[] whereArgs) {
SQLiteDatabase db = this.getWritableDatabase();
return db.update(table, contentValues, whereClause, whereArgs);
}
}
And here's the service code:
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
vdb = new VocabDatabase(this);
Toast.makeText(this, "Service started", Toast.LENGTH_SHORT).show();
createDB();
queryDB();
return super.onStartCommand(intent, flags, startId);
}
private void createDB() {
vdb.getWritableDatabase();
try {
vdb.createDataBase();
vdb.openDataBase();
} catch (Exception e) {
e.printStackTrace();
}
}
public void queryDB() {
String vet = "";
ArrayList<String> lister = new ArrayList<>();
Cursor cr = vdb.query(TABLE_NAME, null, null, null, null, null, null);
if (cr.moveToFirst()) {
do {
lister.add(cr.getString(0));
} while (cr.moveToNext());
}
cr.close();
String vet="";
for (String v : lister) {
vet += v + "\t";
}
}
The String-vet is displayed in the toast, and I can see all the words in the first column of the table. But I'm not able to update the rows.
private void updateInDatabase(String up, String pot) {
ContentValues conval = new ContentValues();
conval.put(pot, "1");
try {
long res = vdb.update(TABLE_NAME, conval, "Word=?", new String[]{up});
} catch (Exception e) {
}
}
I've given the storage permissions to it and double checked the same.
Manifest File:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.example.hack.corrector">
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" tools:remove="android:maxSdkVersion"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".scrapeservice"/>
</application>
Error Log:
05-17 13:39:04.614 28088-28088/com.example.hack.corrector E/SQLiteLog: (14) cannot open file at line 31282 of [5a3022e081]
05-17 13:39:04.615 28088-28088/com.example.hack.corrector E/SQLiteLog: (14) os_unix.c:31282: (21) open(/data/user/0/com.example.hack.corrector/databases/) -
05-17 13:39:04.616 28088-28088/com.example.hack.corrector E/SQLiteDatabase: Failed to open database '/data/user/0/com.example.hack.corrector/databases/'.
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:207)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:191)
at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177)
at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:806)
at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:791)
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694)
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669)
at com.example.hakc.corrector.VocabDatabase.checkDataBase(VocabDatabase.java:81)
at com.example.hakc.corrector.VocabDatabase.createDataBase(VocabDatabase.java:48)
at com.example.hakc.corrector.scrapeservice.createDB(scrapeservice.java:48)
at com.example.hakc.corrector.scrapeservice.onStartCommand(scrapeservice.java:39)
at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:3049)
at android.app.ActivityThread.access$2300(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1479)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5571)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:745)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:635)
05-17 1
This issue if you are running your app on API level 23 or greater, because of the new real-time permissions model introduced in this. In these versions users grant permissions to apps while the app is running
For getting permissions at runtime, you will have to request the user. You can do that in following way:
Request Permission
String[] permissions = {Manifest.permission.WRITE_EXTERNAL_STORAGE};
requestPermissions(permissions, REQUEST_CODE); //REQUEST_CODE can be any Integer value
And check your Permission Result
#Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case REQUEST_CODE:
if(grantResults[0] == PackageManager.PERMISSION_GRANTED){
//Permission granted.
//Now you can try your database creating and writing stuff.
}
else{
//Permission denied.
}
break;
}
}
If this does not solve your problem then go to this link. Number of solutions are here for the same problem.
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
Like the exception tells :
Failed to open database '/data/user/0/com.example.hack.corrector/databases/'.
You are trying to open the SQLite DB with the variable DB_PATH set like
this.DB_PATH = context.getApplicationInfo().dataDir + "/databases/";
You don't set the name of the file, only set the directory path. databases/ is a directory.
Set a file name to your path :
this.DB_PATH = context.getApplicationInfo().dataDir + "/databases/my_db";
EDIT:
you have two DB name variable... you are using DB_NAME to open the connection with the helper (in the super constructor) then in the check method you used DB_PATH.
So you are able to get a connection from the helper
this.getWritableDatabase(); //Using the DB at `DB_NAME`
But will failed to get a connection with
String myPath = DB_PATH;
SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READWRITE);
Because you used DB_PATH here not DB_NAME. You are using 2 different DB path.
I believe you will find that the cannot open database error is not actually a failure, but an indication of the issue. That is the open error is encountered by the checkdataBase method because it cannot open the database as the message says. This, as it is trapped, does not result in a failure.
Rather what happens is that checkDatabase method returns false, because it cannot open the database, and so the database is copied from the assets every time the App is run. Thus undoing any changes from a previous run.
It is simple to diagnose/debug this using two lines of code.
by adding Log.d("DBEXISTCHK", "Method checkdataBase returned" + String.valueOf(dbExist));
as per :-
/**
* Creates a empty database on the system and rewrites it with your own database.
*/
public void createDataBase() throws IOException {
boolean dbExist = checkDataBase();
Log.d("DBEXISTCHK", "Method checkdataBase returned" + String.valueOf(dbExist)); //<<<<<<<<<< ADDED
if (dbExist) {
//do nothing - database already exist
} else {
//By calling this method and empty database will be created into the default system path
//of your application so we are gonna be able to overwrite that database with our database.
this.getWritableDatabase();
try {
copyDataBase();
} catch (IOException e) {
throw new Error("Error copying database");
}
}
}
and
by adding Log.d("DBCOPY","Database is being copied from the Assets.");
as per :-
private void copyDataBase() throws IOException {
Log.d("DBCOPY","Database is being copied from the Assets."); //<<<<<<<<<< ADDED
//Open your local db as the input stream
InputStream myInput = myContext.getAssets().open(DB_NAME);
// Path to the just created empty db
String outFileName = DB_PATH + DB_NAME;
//Open the empty db as the output stream
OutputStream myOutput = new FileOutputStream(outFileName);
//transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length = 0;
while ((length = myInput.read(buffer)) > 0) {
myOutput.write(buffer, 0, length);
}
//Close the streams
myOutput.flush();
myOutput.close();
myInput.close();
}
The resultant log would then be along similar to (note the last two lines):-
05-17 10:12:22.591 1152-1152/bcdbfa.basiccopydbfromassets E/SQLiteLog: (14) cannot open file at line 30174 of [00bb9c9ce4]
(14) os_unix.c:30174: (21) open(/data/data/bcdbfa.basiccopydbfromassets/databases/) -
05-17 10:12:22.591 1152-1152/bcdbfa.basiccopydbfromassets E/SQLiteDatabase: Failed to open database '/data/data/bcdbfa.basiccopydbfromassets/databases/'.
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:209)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:193)
at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177)
at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:804)
at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:789)
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694)
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669)
at bcdbfa.basiccopydbfromassets.VocabDatabase.checkDataBase(VocabDatabase.java:85)
at bcdbfa.basiccopydbfromassets.VocabDatabase.createDataBase(VocabDatabase.java:45)
at bcdbfa.basiccopydbfromassets.MainActivity.onCreate(MainActivity.java:18)
at android.app.Activity.performCreate(Activity.java:5008)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
05-17 10:12:22.591 1152-1152/bcdbfa.basiccopydbfromassets W/System.err: android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:209)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:193)
at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177)
at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:804)
at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:789)
05-17 10:12:22.599 1152-1152/bcdbfa.basiccopydbfromassets W/System.err: at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694)
at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669)
at bcdbfa.basiccopydbfromassets.VocabDatabase.checkDataBase(VocabDatabase.java:85)
at bcdbfa.basiccopydbfromassets.VocabDatabase.createDataBase(VocabDatabase.java:45)
at bcdbfa.basiccopydbfromassets.MainActivity.onCreate(MainActivity.java:18)
at android.app.Activity.performCreate(Activity.java:5008)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
05-17 10:12:22.599 1152-1152/bcdbfa.basiccopydbfromassets D/DBEXISTCHK: Method checkdataBase returnedfalse
05-17 10:12:22.599 1152-1152/bcdbfa.basiccopydbfromassets D/DBCOPY: Database is being copied from the Assets.
The Fix
The fix is even simpler, it is simply a matter of changing :-
String myPath = DB_PATH;
to
String myPath = DB_PATH + DB_NAME;
in the checkDatabase method.
In which case the result in the log (if the logging is left in) will be :-
05-17 10:30:49.809 1265-1265/? D/DBEXISTCHK: Method checkdataBase returnedtrue
Additional
Re the comment
only empty database with the same name is being created.
This is because you are calling getWritableDatabase in the createDB method before calling the createDatabase method. That is, getWritableDatabase will, if there is no database, create an empty database (bar the sqlite_master table and for android the android_metadata table), and then invoke the onCreate method. So that explains why when the full path is correct that the copy of the database is circumvented and that the database empty database exists as a result.
And then the comment
But when I changed 'myPath' back to myPath = DB_Path; the entire
database got copied but the problem still persists.
When the path is incorrect the, as previously explained, the checkDatabase method will always return false and thus the copyDatabase method is invoked, this then works as the paths used are correct.
So
private void createDB() {
vdb.getWritableDatabase(); //<<<<<<<<<< The villainous line
try {
vdb.createDataBase();
vdb.openDataBase();
} catch (Exception e) {
e.printStackTrace();
}
}
should be
private void createDB() {
try {
vdb.createDataBase();
vdb.openDataBase();
} catch (Exception e) {
e.printStackTrace();
}
}
Obviously with all paths being the full path that include the name of the database.
I've figured out where the problem lies. It was in the service from which the query is done. In createDB() method, I've used vdb.getWritableDatabase(). When I commented it out, the query worked smoothly. Entire database copied, and queries are being handled perfectly. I need to check the 'update' though.. I sincerely thank you guys for hearing me and taking your time to help me solve this problem. It's thanks to your answers, I've learnt a lot about how databases are communicated with properly.
I am trying to connect to a MS SQL Server in Android and I am having the following error on the Logcat:
Process: za.co.plus94.rate, PID: 22863
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Lorg/ietf/jgss/GSSManager;
at net.sourceforge.jtds.jdbc.TdsCore.createGssToken(TdsCore.java:4400)
at net.sourceforge.jtds.jdbc.TdsCore.sendMSLoginPkt(TdsCore.java:1971)
at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:617)
at net.sourceforge.jtds.jdbc.JtdsConnection.<init>(JtdsConnection.java:371)
at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184)
at java.sql.DriverManager.getConnection(DriverManager.java:179)
at java.sql.DriverManager.getConnection(DriverManager.java:144)
at za.co.plus94.rate.Helpers.ConnectionClass.connClass(ConnectionClass.java:28)
at za.co.plus94.rate.RateKeywordActivity$SendSuggestion.doInBackground(RateKeywordActivity.java:108)
at za.co.plus94.rate.RateKeywordActivity$SendSuggestion.doInBackground(RateKeywordActivity.java:95)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.ClassNotFoundException: Didn't find class "org.ietf.jgss.GSSManager" on path: DexPathList[[zip file "/data/app/za.co.plus94.rate-2/base.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_dependencies_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_0_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_1_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_2_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_3_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_4_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_5_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_6_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_7_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_8_apk.apk", zip file "/data/app/za.co.plus94.rate-2/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/za.co.plus94.rate-2/lib/arm64, /vendor/lib64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at net.sourceforge.jtds.jdbc.TdsCore.createGssToken(TdsCore.java:4400)
at net.sourceforge.jtds.jdbc.TdsCore.sendMSLoginPkt(TdsCore.java:1971)
at net.sourceforge.jtds.jdbc.TdsCore.login(TdsCore.java:617)
at net.sourceforge.jtds.jdbc.JtdsConnection.<init>(JtdsConnection.java:371)
at net.sourceforge.jtds.jdbc.Driver.connect(Driver.java:184)
at java.sql.DriverManager.getConnection(DriverManager.java:179)
at java.sql.DriverManager.getConnection(DriverManager.java:144)
at za.co.plus94.rate.Helpers.ConnectionClass.connClass(ConnectionClass.java:28)
at za.co.plus94.rate.RateKeywordActivity$SendSuggestion.doInBackground(RateKeywordActivity.java:108)
at za.co.plus94.rate.RateKeywordActivity$SendSuggestion.doInBackground(RateKeywordActivity.java:95)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Suppressed: java.lang.ClassNotFoundException: org.ietf.jgss.GSSManager
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 17 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
I think the issue is coming from: java.lang.NoClassDefFoundError: Failed resolution of: Lorg/ietf/jgss/GSSManager; and I don't know how to resolve it.
Here is my DB Connection method class:
public Connection connClass(String username, String password, String database, String server){
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
Connection connection = null;
String ConnectionURL = null;
try{
Class.forName("net.sourceforge.jtds.jdbc.Driver");
ConnectionURL = "jdbc:jtds:sqlserver://" + server + ";databaseName=" + database + ";user" + username + ";password" + password + ";";
connection = DriverManager.getConnection(ConnectionURL);
}catch (SQLException ex){
Log.e("CONNECTION", ex.getMessage());
}catch(ClassNotFoundException ex){
Log.e("CONNECTION", ex.getMessage());
}catch (Exception ex){
Log.e("CONNECTION", ex.getMessage());
}
return connection;
}
}
I have enabled MultiDex as well.
Try using a previous version of jtds, ver. 1.2.7 to be exact. Try using that one it worked for me when i tried it
Make this change
Class.forName("net.sourceforge.jtds.jdbc.Driver");
ConnectionURL = "jdbc:jtds:sqlserver://" + server + "/" + database;
connection = DriverManager.getConnection(ConnectionURL, username, password);
i'm having problem understanding what is the error with opening the database since my program works fine but it displays this error.can anyone help me in understanding this.
this is how i check the database exists in the main
private boolean checkDataBase(){
SQLiteDatabase checkDB = null;
try {
checkDB = SQLiteDatabase.openDatabase("Event.db", null, SQLiteDatabase.OPEN_READONLY);
checkDB.close();
}
catch (SQLiteException e) {
eventDB = new DatabaseEvent(this);
}
return checkDB != null;
}
i'm getting this error i don't know how to fix?
E/SQLiteDatabase: Failed to open database 'MyACtion.db'.
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:209)
at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:193)
at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185)
at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177)
In the onCreate method of DatabaseEvent class change the SQL from:
db.execSQL("CREATE TABLE... ;");
to
db.execSQL("CREATE TABLE... "); // NO SEMI-COLON
also, in your checkDataBase method, you're not opening the same database you are creating in DatabaseEvent. Instead call:
DatabaseEvent db = new DatabaseEvent(context);
db.getReadableDatabase();
Am using Parse DB for my backend , used method like Login,SaveInBackground,FindInBackGround, most of the function is working except, One function which uses SaveInBackground(){....} other method with same SaveInBackground () is working
This is the method for which the error occurred
private void xxdatat(final ParseObject receiverObject) {
ParseObject obj = new ParseObject(Constants.XXX);
obj.put("SENDER_ID", objdata); //parse object type
obj.put("RECIEIVER_ID", Robjdata); //parse object type
obj.put("REQUEST_TYPE", stingdata); //String type
obj.saveInBackground(new SaveCallback() {
#Override
public void done(ParseException e) {
if (e==null) {
DialogUtil.showDialog(mContext, "working");
} else {
DialogUtil.showDialog(mContext,"Not working");
}
}
});
I surfed through the internet and find some solutions to be made in parse configuration file.
Parse.initialize(new Parse.Configuration.Builder(this)
.applicationId(APP_ID)
.clientKey(CLIENT_KEY)
.addNetworkInterceptor(new ParseLogInterceptor())
.server("https://parse.xxxyyyzzz.com/parse/")
.build());
The link is completed by "/"
As observed there are errors while converting the data from parse to JSONObject and the exception is also JSONException.
How to solve this issue? Thanks in advance.
com.parse.ParseRequest$ParseRequestException: bad json response
at com.parse.ParseRequest.newTemporaryException(ParseRequest.java:290)
at com.parse.ParseRESTCommand.onResponseAsync(ParseRESTCommand.java:308)
at com.parse.ParseRequest$3.then(ParseRequest.java:137)
at com.parse.ParseRequest$3.then(ParseRequest.java:133)
at bolts.Task$15.run(Task.java:917)
at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
at bolts.Task.completeAfterTask(Task.java:908)
at bolts.Task.continueWithTask(Task.java:715)
at bolts.Task.continueWithTask(Task.java:726)
at bolts.Task$13.then(Task.java:818)
at bolts.Task$13.then(Task.java:806)
at bolts.Task$15.run(Task.java:917)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: org.json.JSONException: Value <html> of type java.lang.String cannot be converted to JSONObject
at org.json.JSON.typeMismatch(JSON.java:111)
at org.json.JSONObject.<init>(JSONObject.java:160)
at org.json.JSONObject.<init>(JSONObject.java:173)
at com.parse.ParseRESTCommand.onResponseAsync(ParseRESTCommand.java:298)
at com.parse.ParseRequest$3.then(ParseRequest.java:137)
at com.parse.ParseRequest$3.then(ParseRequest.java:133)
at bolts.Task$15.run(Task.java:917)
at bolts.BoltsExecutors$ImmediateExecutor.execute(BoltsExecutors.java:105)
at bolts.Task.completeAfterTask(Task.java:908)
at bolts.Task.continueWithTask(Task.java:715)
at bolts.Task.continueWithTask(Task.java:726)
at bolts.Task$13.then(Task.java:818)
at bolts.Task$13.then(Task.java:806)
at bolts.Task$15.run(Task.java:917)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Finally solved this issues by creating a new table in db with same structure and different name.
Now there is no issues working fine.
My program should work as follows:
1.Copy the new database in the program folder
2.Import the records from the old database to the new one.
But I for some reason get an exception. Why?
protected Object doInBackground(Object[] objects) {
String LOCAL_DATABASE_PATH = getApplicationInfo().dataDir + File.separator +
"databases" + File.separator;
File fileDir = new File(LOCAL_DATABASE_PATH);
if (!fileDir.exists())
fileDir.mkdirs();
File tempFile = new File(LOCAL_DATABASE_PATH + DATABASE_NAME);
try {
tempFile.createNewFile(); // here I catch exception
InputStream is = SplashActivity.this.getAssets().open(
DATABASE_NAME);
FileOutputStream os = new FileOutputStream(new File(
LOCAL_DATABASE_PATH, DATABASE_NAME));
int bufferLength = 0;
byte[] buffer = new byte[2048];
while ((bufferLength = is.read(buffer)) > 0) {
os.write(buffer, 0, bufferLength);
}
Preferences.getInstance(SplashActivity.this).
set(Preferences.IS_DATABASE_COPYING_ON_DEVICE, true);
is.close();
os.close();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
I am getting the following error
java.io.IOException: open failed: EACCES (Permission denied)
08-28 09:32:27.977 32558-32558/com.DriverNotes.AndroidMobileClientTest D/libEGL﹕ loaded /system/lib/egl/libGLES_hawaii.so
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.io.File.createNewFile(File.java:948)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at com.DriverNotes.AndroidMobileClientTest.SplashActivity$DataBaseLoadTask.doInBackground(SplashActivity.java:73)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:287)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:234)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
08-28 09:32:27.977 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.lang.Thread.run(Thread.java:856)
08-28 09:32:27.987 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ Caused by: libcore.io.ErrnoException: open failed: EACCES (Permission denied)
08-28 09:32:27.987 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at libcore.io.Posix.open(Native Method)
08-28 09:32:27.987 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
08-28 09:32:27.987 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ at java.io.File.createNewFile(File.java:941)
08-28 09:32:27.987 32558-32587/com.DriverNotes.AndroidMobileClientTest W/System.err﹕ ... 7 more
When creating the tempFile try using the fileDir you already created to get sure it exists.
File tempFile = new File(fileDir, DATABASE_NAME);
Before you create a new file you should check if it already exists by calling its exits() method. And then instead of opening it again you should actually keep on using it. Or at least close it before opening again.
if(!tempFile.exists())
tempFile.createNewFile();
InputStream is = SplashActivity.this.getAssets().open(
DATABASE_NAME);
FileOutputStream os = new FileOutputStream(tempFile);
Create you FileOutPutStream using the tempFile or close tempFile to get sure your file is not locked.