android 读取SQLite android could not open the database in read/write mode错误

由于AndroidManifest.xml文件中uses-permission没有设置权限问题

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.INTERNET" />