User login based on httpservlet.

User login based on httpservlet.

I did it based on https://blog.csdn.net/Evian_Tian/article/details/53644669. The process is still relatively clear, but after entering the user name and password and clicking login, the following error appears:
Insert picture description heretrouble everyone, thank you.

Guess you like

Origin blog.csdn.net/terrygu000/article/details/89279685