如何在没有互联网连接的情况下从 Android 设备访问 mysql 数据库？

Question

I am implementing an app which has a database that contains millions of values and is located on a PC(Server) . Now provided, I won't have an active internet connection, what option do I have to connect with the mysql database? Is it possible to implement this using a wireless LAN?

Answer 1

如果您必须离线访问，我唯一的想法是将数据加载到 xml 或 JSON 文件中，尽管这不是一种有效或安全的方式（取决于您的数据是什么），这可能是您的一个选择

Answer 2

Yes you can connect it without the internet all you have to do is start the Wifi hotspot of your mobile device and connect your laptop to the wifi network of your mobile

the mobile and the PC(server)should be on the same network assuming that you are using XAMPP server go to the folder where you installed XAMPP on PC and search for httpd-xampp config file inside XAMPP\\apache\\conf\\extra

<LocationMatch "^/(?i:(?:xampp|security|licenses|phpmyadmin|webalizer|server-status|server-info))">
   # Require local
ErrorDocument 403 /error/XAMPP_FORBIDDEN.html.var
</LocationMatch>

find and comment the Require local

Now grant the privileges to the database user to connect with % ie any host

Open Command Prompt and type ipconfig there you will find the IpV4 address

use that address for the connection string ie.

connection=DriverManager.getConnection("jdbc:mysql://192.168.x.xxx/databasename","username","password");

and you can connect get the connection to the database

Android with mysql connectivity without JSON or PHP Android with mysql connectivity

Answer 3

Yes you can do it using wireless Lan.

check this link: https://blogs.msdn.microsoft.com/varund/2010/09/02/create-a-sql-server-database-on-a-network-shared-drive/