Because no random number is added , the system will think that we are jumping to the same page , but it is not.
The bug I encountered was that I wanted to jump to the upload page, but jumped to the login page .
it's actually really easy
Use PageServlet to specifically handle file jumps under WEB-INF. Why is there no way to jump to other pages?
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Origin blog.csdn.net/weixin_42995083/article/details/105483167
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