我有一个将信息存储在表格中的应用程序,最终将其传输到PC。但是,我找不到有关如何将db文件从手机传输到PC的任何可靠信息。
答案 0 :(得分:0)
只需添加此权限即可显示:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
并像这样备份数据库:
public void copyFile()
{
try
{
File sd = Environment.getExternalStorageDirectory();
File data = Environment.getDataDirectory();
if (sd.canWrite())
{
String currentDBPath = "\\data\\your.package.name\\databases\\dabase_name"; /* REMEMBER TO CHANGE THIS */
String backupDBPath = "database_name";
File currentDB = new File(data, 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();
}
if(bool == true)
{
Toast.makeText(Settings.this, "Backup Complete", Toast.LENGTH_SHORT).show();
bool = false;
}
}
}
catch (Exception e) {
Log.w("Settings Backup", e);
}
}
现在您可以将其(从存储设备)手动传输到PC或上传到服务器