[英]Error in sqllite programming in android
我正在设计一个用于Messenger的应用程序。我正在使用一个sqlite数据库来存储用户信息,但是却收到了此错误logcat。
05-19 22:24:00.211: E/SQLiteLog(8815): (1) no such table: pendingintents
05-19 22:24:00.251: E/SQLiteDatabase(8815): Error inserting message=aaaaaaaas receivername=Abc minutes=23 _id=-1092327224 seconds=28 month=4 year=2013 frequency=15 mins day=19 hour=22 numbertosend=(880) 037-6666
05-19 22:24:00.251: E/SQLiteDatabase(8815): android.database.sqlite.SQLiteException: no such table: pendingintents (code 1): , while compiling: INSERT INTO pendingintents(message,receivername,minutes,_id,seconds,month,year,frequency,day,hour,numbertosend) VALUES (?,?,?,?,?,?,?,?,?,?,?)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1467)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1339)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.xxxx.DatabaseCreator.InitializePendingIntents(DatabaseCreator.java:64)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.xxxx.Scheduler.addToDatabase(Scheduler.java:314)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.xxxx.Scheduler.access$20(Scheduler.java:311)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.xxxx.Scheduler$4.onClick(Scheduler.java:188)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.view.View.performClick(View.java:4204)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.view.View$PerformClick.run(View.java:17355)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.os.Handler.handleCallback(Handler.java:725)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.os.Handler.dispatchMessage(Handler.java:92)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.os.Looper.loop(Looper.java:137)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at android.app.ActivityThread.main(ActivityThread.java:5041)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at java.lang.reflect.Method.invokeNative(Native Method)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at java.lang.reflect.Method.invoke(Method.java:511)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
05-19 22:24:00.251: E/SQLiteDatabase(8815): at dalvik.system.NativeStart.main(Native Method)
05-19 22:24:00.251: E/SQLiteLog(8815): (1) no such table: pendingintents
我给表指定了“ pendingintents”名称。
这是我的sqlite助手类
public class SQLLiteOpenHelper extends SQLiteOpenHelper {
public static final String TABLE_PENDINGINTENT = "pendingintents";
public static final String COLUMN_ID = "_id";
public static final String COLUMN_HOUR = "hour";
public static final String COLUMN_MINUTES = "minutes";
public static final String COLUMN_SECONDS = "seconds";
public static final String COLUMN_YEAR = "year";
public static final String COLUMN_MONTH = "month";
public static final String COLUMN_DAY = "day";
public static final String COLUMN_FREQUENCY = "frequency";
public static final String COLUMN_NUMBERTOSEND = "numbertosend";
public static final String COLUMN_RECEIVERNAME = "receivername";
public static final String COLUMN_MESSAGE = "message";
private static final String DATABASE_NAME = "PendingIntentDatabase.db";
private static final int DATABASE_VERSION = 1;
private static final String DATABASE_CREATE = "CREATE TABLE " + TABLE_PENDINGINTENT + "(" + COLUMN_ID + " INTEGER PRIMARY KEY , " + COLUMN_HOUR +" INTEGER, " + COLUMN_MINUTES + " INTEGER, " + COLUMN_SECONDS + " INTEGER, " + COLUMN_YEAR + " INTEGER, " + COLUMN_MONTH + " INTEGER, " + COLUMN_DAY + " INTEGER, " + COLUMN_FREQUENCY + " String, " + COLUMN_NUMBERTOSEND + " String, " + COLUMN_RECEIVERNAME + " String, " + COLUMN_MESSAGE + " String " + ");";
public SQLLiteOpenHelper(Context context, String name,
CursorFactory factory, int version) {
super(context, DATABASE_NAME, factory, DATABASE_VERSION);
// TODO Auto-generated constructor stub
}
@Override
public void onCreate(SQLiteDatabase arg0) {
// TODO Auto-generated method stub
arg0.execSQL(DATABASE_CREATE);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + TABLE_PENDINGINTENT);
onCreate(db);
}
}
数据库插入在这里完成”
public ValueInsertion InitializePendingIntents(int id, int hour, int mins, int secs, int year, int month, int day, String frequency, String number, String name, String message )
{
ContentValues val= new ContentValues();
val.put(SQLLiteOpenHelper.COLUMN_ID, id);
val.put(SQLLiteOpenHelper.COLUMN_HOUR, hour);
val.put(SQLLiteOpenHelper.COLUMN_MINUTES, mins);
val.put(SQLLiteOpenHelper.COLUMN_SECONDS, secs);
val.put(SQLLiteOpenHelper.COLUMN_YEAR, year);
val.put(SQLLiteOpenHelper.COLUMN_MONTH, month);
val.put(SQLLiteOpenHelper.COLUMN_DAY, day);
val.put(SQLLiteOpenHelper.COLUMN_FREQUENCY, frequency);
val.put(SQLLiteOpenHelper.COLUMN_NUMBERTOSEND, number);
val.put(SQLLiteOpenHelper.COLUMN_RECEIVERNAME, name);
val.put(SQLLiteOpenHelper.COLUMN_MESSAGE, message);
database.insert(SQLLiteOpenHelper.TABLE_PENDINGINTENT, null,val);
Cursor cursor = database.query(SQLLiteOpenHelper.TABLE_PENDINGINTENT,
allColumns, SQLLiteOpenHelper.COLUMN_ID + " = " + id, null,
null, null, null);
cursor.moveToFirst();
ValueInsertion newPendingIntent = cursorForPI(cursor);
cursor.close();
return newPendingIntent;
}
您还需要确保执行创建表的sql语句:
DATABASE_CREATE = "CREATE TABLE " + TABLE_PENDINGINTENT + "(" + COLUMN_ID + " INTEGER PRIMARY KEY , " + COLUMN_HOUR +" INTEGER, " + COLUMN_MINUTES + " INTEGER, " + COLUMN_SECONDS + " INTEGER, " + COLUMN_YEAR + " INTEGER, " + COLUMN_MONTH + " INTEGER, " + COLUMN_DAY + " INTEGER, " + COLUMN_FREQUENCY + " String, " + COLUMN_NUMBERTOSEND + " String, " + COLUMN_RECEIVERNAME + " String, " + COLUMN_MESSAGE + " String " + ");";
下面的语句很清楚:
05-19 22:24:00.211: E/SQLiteLog(8815): (1) no such table: pendingintents
该表未创建-出于任何原因。 要澄清的是,如果要执行升级,则会删除该表-之后便没有recreate语句...
程序点。 您命名创建表 DATABASE_CREATE
的字符串。 它应该是create_table_pendingintents
,或者不像DATABASE_CREATE
那样容易引起误解
编辑
如果您在sql执行期间遇到错误,请尝试将代码包装在错误陷阱中-建议您在执行数据库操作时随时使用:
try{
db.execSQL(DATABASE_CREATE_MY_TABLE);
}catch(SQLiteException e){
Log.v(CLASS,"Error: [{"+CLASS+"}{database}[onCreate] Exception: "+e.getMessage());
}
private static final String DATABASE_CREATE = "CREATE TABLE " + TABLE_PENDINGINTENT + "(" + COLUMN_ID + " INTEGER PRIMARY KEY , " + COLUMN_HOUR +" INTEGER, " + COLUMN_MINUTES + " INTEGER, " + COLUMN_SECONDS + " INTEGER, " + COLUMN_YEAR + " INTEGER, " + COLUMN_MONTH + " INTEGER, " + COLUMN_DAY + " INTEGER, " + COLUMN_FREQUENCY + " String, " + COLUMN_NUMBERTOSEND + " String, " + COLUMN_RECEIVERNAME + " String, " + COLUMN_MESSAGE + " String " + ");";
public SQLLiteOpenHelper(Context context, String name,CursorFactory factory, intversion) {
super(context, DATABASE_NAME, factory, DATABASE_VERSION);
// TODO Auto-generated constructor stub
}
@Override
public void onCreate(SQLiteDatabase arg0) {
// TODO Auto-generated method stub
db.execSQL(DATABASE_CREATE );
}
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