我正在为学校项目开发一个Android应用程序，当Eclipse调用代码来咨询数据库时会抛出这个错误：
D/dalvikvm(2011): Not late-enabling CheckJNI (already on)
I/SQLite(2011): Inicio de aplicación SQLite
I/SQLite(2011): Aplicación SQLite creada correctamente :)
I/Choreographer(2011): Skipped 61 frames! The application may be doing too much work on its main thread.
I/Choreographer(2011): Skipped 69 frames! The application may be doing too much work on its main thread.
D/gralloc_goldfish(2011): Emulator without GPU emulation detected.
E/SQLiteLog(2011): (1) no such column: significado
D/AndroidRuntime(2011): Shutting down VM
W/dalvikvm(2011): threadid=1: thread exiting with uncaught exception (group=0xb1d5eb20)
E/AndroidRuntime(2011): FATAL EXCEPTION: main
E/AndroidRuntime(2011): Process: com.tutorial.pasanaku, PID: 2011
E/AndroidRuntime(2011): android.database.sqlite.SQLiteException: no such column: significado (code 1): , while compiling: SELECT significado FROM mi_tabla WHERE palabra=casa
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
E/AndroidRuntime(2011): at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
E/AndroidRuntime(2011): at com.tutorial.pasanaku.DataBaseHelper.consulta(DataBaseHelper.java:145)
E/AndroidRuntime(2011): at com.tutorial.pasanaku.AlfaActivity$1.onClick(AlfaActivity.java:52)
E/AndroidRuntime(2011): at android.view.View.performClick(View.java:4438)
E/AndroidRuntime(2011): at android.view.View$PerformClick.run(View.java:18422)
E/AndroidRuntime(2011): at android.os.Handler.handleCallback(Handler.java:733)
E/AndroidRuntime(2011): at android.os.Handler.dispatchMessage(Handler.java:95)
E/AndroidRuntime(2011): at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(2011): at android.app.ActivityThread.main(ActivityThread.java:5017)
E/AndroidRuntime(2011): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(2011): at java.lang.reflect.Method.invoke(Method.java:515)
E/AndroidRuntime(2011): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
E/AndroidRuntime(2011): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
E/AndroidRuntime(2011): at dalvik.system.NativeStart.main(Native Method)
I/Process(2011): Sending signal. PID: 2011 SIG: 9
以下是加载现有数据库的代码。它位于“DataBaseHelper”类中。
public class DataBaseHelper extends SQLiteOpenHelper{
//The Android's default system path of your application database.
private static String DB_PATH = "/data/data/com.tutorial.pasanaku/databases/";
private static String DB_NAME = "dbTest";
private SQLiteDatabase myDataBase;
private final Context myContext;
/**
* Constructor
* Takes and keeps a reference of the passed context in order to access to the application assets and resources.
* @param context
*/
public DataBaseHelper(Context context) {
super(context, DB_NAME, null, 1);
this.myContext = context;
}
“搜索”按钮的代码
button1.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
//Intent intent = new Intent(AlfaActivity.this, Activity.class);
//startActivity(intent);
final String palabra;
final String mostrar;
palabra=editText1.getText().toString();
mostrar=databasehelper.consulta(palabra);
textview2.setText(mostrar);
}
我认为问题在于我没有将数据库放在正确的路径中。我把它放在“assets”文件夹中。这是错的吗？