我已经看到了有关此异常的其他问题,但所有这些问题似乎都通过解决方案解决了,即已存在指定主键的行。对我来说似乎并非如此。我尝试用双引号替换字符串中的所有单引号,但出现了同样的问题。
我正在尝试通过执行以下操作将一行插入到我创建的 SQLite 数据库的设置表中:
db.execSQL("DROP TABLE IF EXISTS "+Settings.SETTINGS_TABLE_NAME + ";");
db.execSQL(CREATE_MEDIA_TABLE);
db.execSQL(CREATE_SETTINGS_TABLE);
Cursor c = getAllSettings();
//If there isn't already a settings row, create a row full of defaults
if(c.getCount()==0){
ContentValues cv = new ContentValues();
cv.put(Settings.SETTING_UNIQUE_ID, "'"+Settings.uniqueID+"'");
cv.put(Settings.SETTING_DEVICE_ID, Settings.SETTING_DEVICE_ID_DEFAULT);
cv.put(Settings.SETTING_CONNECTION_PREFERENCE, Settings.SETTING_CONNECTION_PREFERENCE_DEFAULT);
cv.put(Settings.SETTING_AD_HOC_ENABLED, Settings.SETTING_AD_HOC_ENABLED_DEFAULT);
cv.put(Settings.SETTING_SERVER_ADDRESS, Settings.SETTING_SERVER_ADDRESS_DEFAULT);
cv.put(Settings.SETTING_RECORDING_MODE, Settings.SETTING_RECORDING_MODE_DEFAULT);
cv.put(Settings.SETTING_PREVIEW_ENABLED, Settings.SETTING_PREVIEW_ENABLED_DEFAULT);
cv.put(Settings.SETTING_PICTURE_RESOLUTION_X, Settings.SETTING_PICTURE_RESOLUTION_X_DEFAULT);
cv.put(Settings.SETTING_PICTURE_RESOLUTION_Y, Settings.SETTING_PICTURE_RESOLUTION_Y_DEFAULT);
cv.put(Settings.SETTING_VIDEO_RESOLUTION_X, Settings.SETTING_VIDEO_RESOLUTION_X_DEFAULT);
cv.put(Settings.SETTING_VIDEO_RESOLUTION_Y, Settings.SETTING_VIDEO_RESOLUTION_Y_DEFAULT);
cv.put(Settings.SETTING_VIDEO_FPS, Settings.SETTING_VIDEO_FPS_DEFAULT);
cv.put(Settings.SETTING_AUDIO_BITRATE_KBPS, Settings.SETTING_AUDIO_BITRATE_KBPS_DEFAULT);
cv.put(Settings.SETTING_STORE_TO_SD, Settings.SETTING_STORE_TO_SD_DEFAULT);
cv.put(Settings.SETTING_STORAGE_LIMIT_MB, Settings.SETTING_STORAGE_LIMIT_MB_DEFAULT);
this.db.insert(Settings.SETTINGS_TABLE_NAME, null, cv);
}
CREATE_SETTINGS_TABLE 字符串定义如下:
private static String CREATE_SETTINGS_TABLE = "CREATE TABLE IF NOT EXISTS " + Settings.SETTINGS_TABLE_NAME + "("
+ Settings.SETTING_UNIQUE_ID + " TEXT NOT NULL PRIMARY KEY, "
+ Settings.SETTING_DEVICE_ID + " TEXT NOT NULL , "
+ Settings.SETTING_CONNECTION_PREFERENCE + " TEXT NOT NULL CHECK("+Settings.SETTING_CONNECTION_PREFERENCE+" IN("+Settings.SETTING_CONNECTION_PREFERENCE_ALLOWED+")), "
+ Settings.SETTING_AD_HOC_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_AD_HOC_ENABLED+" IN("+Settings.SETTING_AD_HOC_ENABLED_ALLOWED+")), "
+ Settings.SETTING_SERVER_ADDRESS + " TEXT NOT NULL, "
+ Settings.SETTING_RECORDING_MODE + " TEXT NOT NULL CHECK("+Settings.SETTING_RECORDING_MODE+" IN("+Settings.SETTING_RECORDING_MODE_ALLOWED+")), "
+ Settings.SETTING_PREVIEW_ENABLED + " TEXT NOT NULL CHECK("+Settings.SETTING_PREVIEW_ENABLED+" IN("+Settings.SETTING_PREVIEW_ENABLED_ALLOWED+")), "
+ Settings.SETTING_PICTURE_RESOLUTION_X + " TEXT NOT NULL, "
+ Settings.SETTING_PICTURE_RESOLUTION_Y + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_RESOLUTION_X + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_RESOLUTION_Y + " TEXT NOT NULL, "
+ Settings.SETTING_VIDEO_FPS + " TEXT NOT NULL, "
+ Settings.SETTING_AUDIO_BITRATE_KBPS + " TEXT NOT NULL, "
+ Settings.SETTING_STORE_TO_SD + " TEXT NOT NULL CHECK("+Settings.SETTING_STORE_TO_SD+" IN("+Settings.SETTING_STORE_TO_SD_ALLOWED+")), "
+ Settings.SETTING_STORAGE_LIMIT_MB + " TEXT NOT NULL )";
但是,当我执行插入时,我总是得到:
03-19 19:37:36.974: ERROR/Database(386): Error inserting server_address='0.0.0.0' storage_limit='-1' connection='none' preview_enabled='0' sd_enabled='1' video_fps='15' audio_bitrate='96' device_id='-1' recording_mode='none' picture_resolution_x='-1' picture_resolution_y='-1' unique_id='000000000000000' adhoc_enable='0' video_resolution_x='320' video_resolution_y='240'
03-19 19:45:34.284: ERROR/Database(446): android.database.sqlite.SQLiteConstraintException: error code 19: constraint failed
似乎我的插入中的所有列都不为空。该行的主键必须是唯一的,因为它是表中唯一的行。因此,我唯一能想到的是我的 CHECK 条件不成立。以下是我正在使用的预定义字符串:
public static final String SETTING_UNIQUE_ID = "unique_id";
public static final String SETTING_DEVICE_ID = "device_id";
public static final String SETTING_DEVICE_ID_DEFAULT = "'-1'";
public static final String SETTING_CONNECTION_PREFERENCE = "connection";
public static final String SETTING_CONNECTION_PREFERENCE_3G = "'3g'";
public static final String SETTING_CONNECTION_PREFERENCE_WIFI = "'wifi'";
public static final String SETTING_CONNECTION_PREFERENCE_NONE = "'none'";
public static final String SETTING_CONNECTION_PREFERENCE_ALLOWED = SETTING_CONNECTION_PREFERENCE_3G+","+SETTING_CONNECTION_PREFERENCE_WIFI+","+SETTING_CONNECTION_PREFERENCE_NONE;
public static final String SETTING_CONNECTION_PREFERENCE_DEFAULT = SETTING_CONNECTION_PREFERENCE_NONE;
public static final String SETTING_AD_HOC_ENABLED = "adhoc_enable";
public static final String SETTING_AD_HOC_ENABLED_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_AD_HOC_ENABLED_DEFAULT = FALSE;
public static final String SETTING_SERVER_ADDRESS = "server_address";
public static final String SETTING_SERVER_ADDRESS_DEFAULT = "'0.0.0.0'";
public static final String SETTING_RECORDING_MODE = "recording_mode";
public static final String SETTING_RECORDING_MODE_VIDEO = "'video'";
public static final String SETTING_RECORDING_MODE_AUDIO = "'audio'";
public static final String SETTING_RECORDING_MODE_PICTURE = "'picture'";
public static final String SETTING_RECORDING_MODE_NONE = "'none'";
public static final String SETTING_RECORDING_MODE_ALLOWED = SETTING_RECORDING_MODE_VIDEO+","+SETTING_RECORDING_MODE_AUDIO+","+SETTING_RECORDING_MODE_PICTURE+","+SETTING_RECORDING_MODE_NONE;
public static final String SETTING_RECORDING_MODE_DEFAULT = SETTING_RECORDING_MODE_NONE;
public static final String SETTING_PREVIEW_ENABLED = "preview_enabled";
public static final String SETTING_PREVIEW_ENABLED_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_PREVIEW_ENABLED_DEFAULT = FALSE;
public static final String SETTING_PICTURE_RESOLUTION_X = "picture_resolution_x";
public static final String SETTING_PICTURE_RESOLUTION_X_DEFAULT = "'-1'";
public static final String SETTING_PICTURE_RESOLUTION_Y = "picture_resolution_y";
public static final String SETTING_PICTURE_RESOLUTION_Y_DEFAULT = "'-1'";
public static final String SETTING_VIDEO_RESOLUTION_X = "video_resolution_x";
public static final String SETTING_VIDEO_RESOLUTION_X_DEFAULT = "'320'";
public static final String SETTING_VIDEO_RESOLUTION_Y = "video_resolution_y";
public static final String SETTING_VIDEO_RESOLUTION_Y_DEFAULT = "'240'";
public static final String SETTING_VIDEO_FPS = "video_fps";
public static final String SETTING_VIDEO_FPS_DEFAULT = "'15'";
public static final String SETTING_AUDIO_BITRATE_KBPS = "audio_bitrate";
public static final String SETTING_AUDIO_BITRATE_KBPS_DEFAULT = "'96'";
public static final String SETTING_STORE_TO_SD = "sd_enabled";
public static final String SETTING_STORE_TO_SD_ALLOWED = TRUE+","+FALSE;
public static final String SETTING_STORE_TO_SD_DEFAULT = TRUE;
public static final String SETTING_STORAGE_LIMIT_MB = "storage_limit";
public static final String SETTING_STORAGE_LIMIT_MB_DEFAULT = "'-1'";
public static final String SETTING_CLIP_LENGTH_SECONDS = "clip_length";
public static final String SETTING_CLIP_LENGTH_SECONDS_DEFAULT = "'300'";
有人知道会发生什么吗?我很困惑。提前致谢。