推SQLite数据库文件到手机 [英] push sqlite database file into phone
问题描述
我需要把SQLite数据库文件到手机应用程序的存储位置。
我试过<一个href=\"http://stackoverflow.com/questions/20834241/how-to-use-adb-command-to-push-a-file-on-device-without-sd-card\">this我的应用程序包database.But不working.Is有什么办法?
我在设备外壳使用下面的命令尝试过,但得到的设备没有找到消息。
壳@机器人:亚行推MY_DB_FILE /数据/数据/ MY_PACKAGE_NAME /数据库/
打电话时,你希望你的数据库文件如下所示的write()方法。它会在您的设备的根文件夹中的文件backupname.db(您可以更改backupDBPath字符串.db文件的名称)
私人无效的write()抛出IOException
文件SD = Environment.getExternalStorageDirectory(); 如果(sd.canWrite()){ 字符串currentDBPath = DatabaseHelper.DATABASE_NAME;
字符串backupDBPath =backupname.db;
文件currentDB =新的文件(getDBPath(),currentDBPath);
文件的某个backupdb =新的文件(SD,backupDBPath); 如果(currentDB.exists()){
FileChannel SRC =新的FileInputStream(currentDB).getChannel();
FileChannel DST =新的FileOutputStream(某个backupdb).getChannel();
dst.transferFrom(源,0,src.size()); src.close();
dst.close(); }
}
}私人字符串getDBPath(){ 如果(Build.VERSION.SDK_INT&GT; = Build.VERSION_ codeS.JELLY_BEAN_MR1){
返回getFilesDir()getAbsolutePath()代替(文件,数据库)+文件分割符。;
}其他{
返回getFilesDir()的getPath()+ getPackageName()+/数据库/。
}
}
I need to push sqlite database file to phone app storage location. I tried this for my app package database.But not working.Is there any way?
I have tried using below command in device shell, but getting device not found message.
shell@android: adb push MY_DB_FILE /data/data/MY_PACKAGE_NAME/databases/
Call the write() method shown below whenever you want your database file. It will create a backupname.db file in the root folder of your device.(you can change the name of the .db file in the backupDBPath string)
private void write() throws IOException {
File sd = Environment.getExternalStorageDirectory();
if (sd.canWrite()) {
String currentDBPath = DatabaseHelper.DATABASE_NAME;
String backupDBPath = "backupname.db";
File currentDB = new File(getDBPath(), currentDBPath);
File backupDB = new File(sd, backupDBPath);
if (currentDB.exists()) {
FileChannel src = new FileInputStream(currentDB).getChannel();
FileChannel dst = new FileOutputStream(backupDB).getChannel();
dst.transferFrom(src, 0, src.size());
src.close();
dst.close();
}
}
}
private String getDBPath() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
return getFilesDir().getAbsolutePath().replace("files", "databases") + File.separator;
} else {
return getFilesDir().getPath() + getPackageName() + "/databases/";
}
}
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