A brief analysis of value transfer between JSP pages

This paper analyzes the problem of value transfer between JSP pages. Share with you for your reference, as follows:

The simplest one is the href in the < a > tag,

Write in a.jsp:

Then receive in b.jsp:

This method is relatively simple, but I also found some problems. For example, it cannot be loaded dynamically. The value is attached when the page is loaded. For example,

I have a < Select > tag, which dynamically cascades some provinces and cities. Then I want to take the value in < Select > at this time, and I can't pass it through href again, because I select the value in < Select > after the page is loaded. I do this personally,

I hope this article will help you in JSP programming.