09-03 10:53:15.349: E/SQLiteLog(25173): (14) cannot open file at line 30191 of [00bb9c9ce4]
09-03 10:53:15.349: E/SQLiteLog(25173): (14) os_unix.c:30191: (2) open(/data/data/uk.org.nt.android.app1/databases/ntdb) -
09-03 10:53:15.359: E/SQLiteDatabase(25173): Failed to open database '/data/data/uk.org.nt.android.app1/databases/ntdb'.
09-03 10:53:15.359: E/SQLiteDatabase(25173): android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:209)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:193)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:804)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:789)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.dynamic.dao.HandbookDBHelper.getAttractionsFromDB(HandbookDBHelper.java:152)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.dynamic.dao.HandbookDBHelper.findAttractionsForDeletion(HandbookDBHelper.java:96)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.service.UpdateService.performDeletions(UpdateService.java:270)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.service.UpdateService.handleHttpResponse(UpdateService.java:138)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.dynamic.http.HTTPSHelper.onPostExecute(HTTPSHelper.java:91)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at uk.org.nt.android.dynamic.http.HTTPSHelper.onPostExecute(HTTPSHelper.java:1)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.os.AsyncTask.finish(AsyncTask.java:631)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.os.AsyncTask.access$600(AsyncTask.java:177)
09-03 10:53:15.359: E/SQLiteDatabase(25173): at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
public class HandbookDBHelper extends SQLiteOpenHelper {
public static final int REALM = 1; // handbook
private static final String LOG_TAG = "HandbookDBHelper";
// name of the database file for your application -- change to something
// appropriate for your app
// private static final String DATABASE_NAME = "ntdb";
// any time you make changes to your database objects, you may have to
// increase the database version
private static final int DATABASE_VERSION = 1;
File dbFile = null;
private static String DATABASE_NAME = "ntdb";
Context context;
static SimpleDateFormat pricesFormatter = new SimpleDateFormat("yyyy-MM-dd");
static final long EPOCH_DIFF = 978307200;
public HandbookDBHelper(Context context) {
super(context, DATABASE_NAME, null, 1); // set db version
this.context = context;
String fullDBName = context.getDatabasePath(DATABASE_NAME)
.getAbsolutePath();
dbFile = new File(fullDBName);
}
public void unpackDatabase() throws IOException {
OutputStream databaseOutputStream = new FileOutputStream(dbFile);
InputStream databaseInputStream;
byte[] buffer = new byte[1024];
int partSuffix = 0;
int dbId;
String dbPartPrefix = "partdb";
long bytesWritten = 0;
while ((dbId = context.getResources().getIdentifier(
dbPartPrefix + partSuffix, "raw", context.getPackageName())) != 0) {
databaseInputStream = context.getResources().openRawResource(dbId);
while ((databaseInputStream.read(buffer)) > 0) {
databaseOutputStream.write(buffer);
bytesWritten += 1024;
}
databaseInputStream.close();
partSuffix++;
}
databaseOutputStream.flush();
databaseOutputStream.close();
}
/**
* where an attraction exists on the database but does not exist in the
* incomming list.
*
*/
public Map<String, HandbookAttraction> findAttractionsForDeletion(
HandbookAttractions handbookAttractions) {
Map<String, HandbookAttraction> attractionsMap = getAttractionsFromDB();
for (HandbookAttraction handbookAttraction : handbookAttractions
.getHandbookAttractionsList()) {
if (attractionsMap.get(handbookAttraction.getUUID()) != null) {
attractionsMap.remove(handbookAttraction.getUUID());
}
}
return attractionsMap;
}
/**
*
* @param attractionsList
* @return
*/
public Map<String, HandbookAttraction> findAttractionsForUpdate(
HandbookAttractions handbookAttractions) {
Map<String, HandbookAttraction> attractionsMap = getAttractionsFromDB();
// compare versions
Log.d(LOG_TAG, "comparing versions");
for (HandbookAttraction handbookAttraction : handbookAttractions
.getHandbookAttractionsList()) {
HandbookAttraction dbAttraction = attractionsMap
.get(handbookAttraction.getUUID());
if (dbAttraction == null) {
Log.d(LOG_TAG, "NEW: " + handbookAttraction.getName());
} else if (dbAttraction.getVersion() < handbookAttraction
.getVersion()) {
Log.d(LOG_TAG, "UPDATE: " + handbookAttraction.getName()
+ " from " + dbAttraction.getVersion() + " to "
+ handbookAttraction.getVersion());
} else {
Log.d(LOG_TAG, "NO CHANGE: " + handbookAttraction.getName()
+ " was " + dbAttraction.getVersion() + " now "
+ handbookAttraction.getVersion());
attractionsMap.remove(dbAttraction.getUUID());
}
}
Log.d(LOG_TAG, "total number of additions or changes :"
+ attractionsMap.size());
// attractionsMap now contains attractions requiring update or addition.
return attractionsMap;
}
/**
* get the list of attractions from the DB and return them in a map keyed by
* UUID
*
* @return
*/
public Map<String, HandbookAttraction> getAttractionsFromDB() {
SQLiteDatabase attractionsDB = SQLiteDatabase.openDatabase(
dbFile.getAbsolutePath(), null, SQLiteDatabase.OPEN_READONLY);
Map<String, HandbookAttraction> attractionsMap = new Hashtable<String, HandbookAttraction>();
Cursor cursor = attractionsDB.rawQuery(
"select _id, ZVERSION, ZUUID from ZATTRACTION", null);
int cpos = 0;
cursor.moveToFirst();
while (cpos < cursor.getCount()) {
HandbookAttraction attraction = new HandbookAttraction();
attraction.setDbId(cursor.getInt(cursor
.getColumnIndexOrThrow("_id")));
attraction.setVersion(cursor.getInt(cursor
.getColumnIndexOrThrow("ZVERSION")));
attraction.setUUID(cursor.getString(cursor
.getColumnIndexOrThrow("ZUUID")));
attractionsMap.put(
cursor.getString(cursor.getColumnIndexOrThrow("ZUUID")),
attraction);
cpos++;
cursor.moveToPosition(cpos);
}
cursor.close();
attractionsDB.close();
Log.d(LOG_TAG, "loaded " + attractionsMap.size()
+ " attractions from db");
return attractionsMap;
}
public void showDb() {
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
}
/**
* perform update / addition for given attraction
*
* @param handbookAttractionDetail
*/
public void updateAttraction(
HandbookAttractionDetail handbookAttractionDetail) {
SQLiteDatabase attractionsDB = SQLiteDatabase.openDatabase(
dbFile.getAbsolutePath(), null, SQLiteDatabase.OPEN_READWRITE);
int attractionRowId = clearDownAttraction(handbookAttractionDetail,
attractionsDB);
boolean isNewAttraction = (attractionRowId == -1);
//
// now re-build
//
rebuildAttraction(handbookAttractionDetail, isNewAttraction);
attractionsDB.close();
}
答案 0 :(得分：0)
特别是，有一个openDatabase（）命令可以在给定文件路径的情况下访问数据库。
SQLiteDatabase db = SQLiteDatabase.openDatabase(path, null, 0);
只需将数据库的路径指定为路径变量，它就可以正常工作。