android：拷贝sqlite数据库到本地sd卡

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sqlite小型数据库，在开发的时候用于保存数据，在这不做关于它的介绍，本文只是写出了怎么拷贝应用的数据到本地sd卡中。如：一个数据库名为dandy.db的，拷贝到本地中叫seeker.db,代码如下：

/** * 拷贝数据库到sd卡 *  * @deprecated <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> */public static void copyDataBaseToSD(){ if (!Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {             return ;          } File dbFile = new File(MvpApplication.getApplication().getDatabasePath("dandy")+".db"); File file  = new File(Environment.getExternalStorageDirectory(), "seeker.db");  FileChannel inChannel = null,outChannel = null;  try {file.createNewFile();inChannel = new FileInputStream(dbFile).getChannel();outChannel = new FileOutputStream(file).getChannel();inChannel.transferTo(0, inChannel.size(), outChannel);} catch (Exception e) {LogUtils.e(TAG, "copy dataBase to SD error.");e.printStackTrace();}finally{try {if (inChannel != null) {inChannel.close();inChannel = null;}if(outChannel != null){outChannel.close();outChannel = null;}} catch (IOException e) {LogUtils.e(TAG, "file close error.");e.printStackTrace();}}}

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