[英]Android sqlite insert is not inserting
i have this little gps locaton inserting code but thats not insert into the database: 我有这个小gps locaton插入代码但不插入数据库:
db.setVersion(1);
db.setLocale(Locale.getDefault());
db.setLockingEnabled(true);
final String gps = "CREATE TABLE IF NOT EXISTS GPS_Values ("
+ "id INTEGER PRIMARY KEY AUTOINCREMENT, Latitude float(10, 6), Longitude float(10, 6), cur_timestamp TIMESTAMP);";
db.execSQL(gps);
and the inserting lines: 和插入行:
// GPS
public class MyLocationListener implements LocationListener {
public void onLocationChanged(Location loc) {
loc.getLatitude();
loc.getLongitude();
ContentValues gps_values = new ContentValues();
gps_values.put("Latitude", loc.getLatitude());
gps_values.put("Longitutde", loc.getLongitude());
try {
db.beginTransaction();
db.insert("GPS_Values", null, gps_values);
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
String Text = "My current location is: " + "Latitude = "
+ loc.getLatitude() + "\nLongitude = " + loc.getLongitude();
Toast.makeText(getApplicationContext(), Text, Toast.LENGTH_SHORT)
.show();
}
public void onProviderDisabled(String provider) {
Toast.makeText(getApplicationContext(), "Gps Disabled",
Toast.LENGTH_SHORT).show();
}
public void onProviderEnabled(String provider) {
Toast.makeText(getApplicationContext(), "Gps Enabled",
Toast.LENGTH_SHORT).show();
}
public void onStatusChanged(String provider, int status, Bundle extras) {
}
}// gps vége
when tring to get location everithing works fine but the inserting. 当获得位置的时候,工作正常,但插入。
i have similar code with tha accelerator and that works fine. 我有加速器类似的代码,工作正常。
pls help me 请帮助我
请尝试使用insertOrThrow
, - 如果您的数据库约束不允许特定插入,它将抛出异常,那么您将能够弄清楚。
There a typo in the column you're inserting to: 您要插入的列中有拼写错误:
gps_values.put("Longitutde", loc.getLongitude());
Should be 应该
gps_values.put("Longitude", loc.getLongitude());
The insert()
call returns -1 if an error occurred, but you aren't checking the return value. 如果发生错误, insert()
调用返回-1,但您没有检查返回值。 It's generally easier to use insertOrThrow
instead, which throws an exception on error. 通常使用insertOrThrow
更容易,这会在出错时抛出异常。
您尝试在“Longitutde”中插入,但您创建了“经度”字段
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