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Je viens de commencer à développer une application android et j'ai rencontré cette erreur et je ne sais pas où j'ai fait mal. Je veux insérer les informations de connexion de mon utilisateur afin que je puisse saisir les détails lorsque mon utilisateurERREUR SQLiteDatabase: la table n'a pas de nom de colonne
connecté avec succès dans Ceci est mon logcat.
09-01 01:08:13.874: E/JSON(294): {"tag":"login","success":1,"error":0,"uid":"5040ef44839a09.93014710","user":{"name":"a","cname":"a","email":"[email protected]","created_at":"2012-09-01 01:07:16","updated_at":null}}
09-01 01:08:14.034: E/Database(294): Error inserting uid=5040ef44839a09.93014710 created_at=2012- 09-01 01:07:16 [email protected] cname=a name=a
09-01 01:08:14.034: E/Database(294): android.database.sqlite.SQLiteException: table login has no column named cname: , while compiling: INSERT INTO login(uid, created_at, email, cname, name) VALUES(?, ?, ?, ?, ?);
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteCompiledSql.native_compile(Native Method)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteCompiledSql.compile(SQLiteCompiledSql.java:91)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteCompiledSql.<init>(SQLiteCompiledSql.java:64)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:80)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:36)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteDatabase.compileStatement(SQLiteDatabase.java:1145)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1536)
09-01 01:08:14.034: E/Database(294): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1410)
09-01 01:08:14.034: E/Database(294): at com.stts.sparetimetradingsystem.library.DatabaseHandlerEmployer.addUser(DatabaseHandlerEmployer.java:83)
09-01 01:08:14.034: E/Database(294): at com.stts.sparetimetradingsystem.employer.LoginEmployerActivity$LoginEmployer$1.run(LoginEmployerActivity.java:134)
09-01 01:08:14.034: E/Database(294): at android.os.Handler.handleCallback(Handler.java:587)
09-01 01:08:14.034: E/Database(294): at android.os.Handler.dispatchMessage(Handler.java:92)
09-01 01:08:14.034: E/Database(294): at android.os.Looper.loop(Looper.java:123)
09-01 01:08:14.034: E/Database(294): at android.app.ActivityThread.main(ActivityThread.java:4627)
09-01 01:08:14.034: E/Database(294): at java.lang.reflect.Method.invokeNative(Native Method)
09-01 01:08:14.034: E/Database(294): at java.lang.reflect.Method.invoke(Method.java:521)
09-01 01:08:14.034: E/Database(294): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-01 01:08:14.034: E/Database(294): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-01 01:08:14.034: E/Database(294): at dalvik.system.NativeStart.main(Native Method)
09-01 01:08:15.174: E/AndroidRuntime(294): FATAL EXCEPTION: main
09-01 01:08:15.174: E/AndroidRuntime(294): java.lang.RuntimeException: Unable to destroy activity {com.stts.sparetimetradingsystem/com.stts.sparetimetradingsystem.employer.HomepageEmployerActivity}: java.lang.NullPointerException
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3655)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3673)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread.access$2900(ActivityThread.java:125)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.os.Handler.dispatchMessage(Handler.java:99)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.os.Looper.loop(Looper.java:123)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread.main(ActivityThread.java:4627)
09-01 01:08:15.174: E/AndroidRuntime(294): at java.lang.reflect.Method.invokeNative(Native Method)
09-01 01:08:15.174: E/AndroidRuntime(294): at java.lang.reflect.Method.invoke(Method.java:521)
09-01 01:08:15.174: E/AndroidRuntime(294): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-01 01:08:15.174: E/AndroidRuntime(294): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-01 01:08:15.174: E/AndroidRuntime(294): at dalvik.system.NativeStart.main(Native Method)
09-01 01:08:15.174: E/AndroidRuntime(294): Caused by: java.lang.NullPointerException
09-01 01:08:15.174: E/AndroidRuntime(294): at com.stts.sparetimetradingsystem.employer.HomepageEmployerActivity.onDestroy(HomepageEmployerActivity.java:340)
09-01 01:08:15.174: E/AndroidRuntime(294): at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3642)
09-01 01:08:15.174: E/AndroidRuntime(294): ... 11 more
Ceci est mon code SQLiteDatabase com.stts de paquet .sparetimetradingsystem.library;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DatabaseHandlerEmployer extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "stts";
// Login table name
private static final String TABLE_LOGIN = "login";
// Login Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_NAME = "name";
private static final String KEY_CNAME = "cname";
private static final String KEY_EMAIL = "email";
private static final String KEY_UID = "uid";
private static final String KEY_CREATED_AT = "created_at";
public DatabaseHandlerEmployer(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase dbe) {
// ORIGINAL
/*String CREATE_LOGIN_TABLE = "CREATE TABLE " + TABLE_LOGIN + "("
+ KEY_ID + " INTEGER PRIMARY KEY,"
+ KEY_NAME + " TEXT,"
+ KEY_CNAME + " TEXT,"
+ KEY_EMAIL + " TEXT UNIQUE,"
+ KEY_UID + " TEXT,"
+ KEY_CREATED_AT + " TEXT" + ")";
dbe.execSQL(CREATE_LOGIN_TABLE);*/
// TESTING HERE
dbe.execSQL("CREATE TABLE " + TABLE_LOGIN + "("
+ KEY_ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
+ KEY_NAME + " TEXT NOT NULL,"
+ KEY_CNAME + " TEXT,"
+ KEY_EMAIL + " TEXT UNIQUE NOT NULL,"
+ KEY_UID + " TEXT NOT NULL,"
+ KEY_CREATED_AT + " TEXT NOT NULL);"
);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase dbe, int oldVersion, int newVersion) {
// Drop older table if existed
dbe.execSQL("DROP TABLE IF EXISTS " + TABLE_LOGIN);
// Create tables again
onCreate(dbe);
}
/**
* Storing user details in database
* */
//public void addUser(String name, String email, String uid, String created_at) {
public void addUser(String name, String cname, String email, String uid, String created_at) {
SQLiteDatabase dbe = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, name); // Name
values.put(KEY_CNAME, cname); // CName
values.put(KEY_EMAIL, email); // Email
values.put(KEY_UID, uid); // UID
values.put(KEY_CREATED_AT, created_at); // Created At
// Inserting Row
dbe.insert(TABLE_LOGIN, null, values);
dbe.close(); // Closing database connection
}
/**
* Getting user data from database
* */
/*public HashMap<String, String> getUserDetails(){
HashMap<String,String> user = new HashMap<String,String>();
String selectQuery = "SELECT * FROM " + TABLE_LOGIN;
SQLiteDatabase dbe = this.getReadableDatabase();
Cursor cursor = dbe.rawQuery(selectQuery, null);
// Move to first row
cursor.moveToFirst();
if(cursor.getCount() > 0){
user.put("name", cursor.getString(1));
user.put("cname", cursor.getString(2));
user.put("email", cursor.getString(3));
user.put("uid", cursor.getString(4));
user.put("created_at", cursor.getString(5));
}
cursor.close();
dbe.close();
// return user
return user;
}*/
public String getCName()
{
String[] col = new String[] {KEY_NAME};
SQLiteDatabase dbe = this.getReadableDatabase();
Cursor c = dbe.query(TABLE_LOGIN, col, null, null, null, null, null);
String res = "";
int iCname = c.getColumnIndex(KEY_NAME);
for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext())
{
res = res + c.getString(iCname);
}
c.close();
dbe.close();
return res;
}
public String getEmail()
{
String[] col = new String[] {KEY_EMAIL};
SQLiteDatabase dbe = this.getReadableDatabase();
Cursor c = dbe.query(TABLE_LOGIN, col, null, null, null, null, null);
String res = "";
int iEmail = c.getColumnIndex(KEY_EMAIL);
for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext())
{
res = res + c.getString(iEmail);
}
c.close();
dbe.close();
return res;
}
/**
* Getting user login status
* return true if rows are there in table
* */
public int getRowCount() {
String countQuery = "SELECT * FROM " + TABLE_LOGIN;
SQLiteDatabase dbe = this.getReadableDatabase();
Cursor cursor = dbe.rawQuery(countQuery, null);
int rowCount = cursor.getCount();
dbe.close();
cursor.close();
// return row count
return rowCount;
}
/**
* Re crate database
* Delete all tables and create them again
* */
public void resetTables(){
SQLiteDatabase dbe = this.getWritableDatabase();
// Delete All Rows
dbe.delete(TABLE_LOGIN, null, null);
dbe.close();
}
}
Je veux savoir où est le problème à l'origine de l'erreur. aidez s'il vous plaît! Merci!
Avez-vous changé vous table après les premiers essais? Comme dans, en ajoutant des colonnes? – Swayam
Oui, vous devrez peut-être effacer les données si vous aviez modifié la table. – Proxy32
no. J'utilise la même table nommée login. et j'ai ajouté dans cname comme ma colonne supplémentaire. Après avoir ajouté dans cette colonne mon application s'est écrasée. puis-je savoir quelle est la cause première? –