android程序读取项目中已经存在的数据库

 

String databaseFilename = DATABASE_PATH + "/" + DATABASE_NAME;

02	File dir = new File(DATABASE_PATH);

03	if (!dir.exists())

04	dir.mkdir();

05	if (!(new File(databaseFilename)).exists()) {

06	InputStream is = context.getResources().openRawResource(R.raw.jobexam);

07	FileOutputStream fos = new FileOutputStream(databaseFilename);

08	byte[] buffer = new byte[8192];

09	int count = 0;

10	while ((count = is.read(buffer)) > 0) {

11	fos.write(buffer, 0, count);

12

}

13	fos.close();

14	is.close();

15

}

16	db = SQLiteDatabase.openOrCreateDatabase(databaseFilename, null);