刷新页面时双重发送表单

Question

How can I avoid to submit again the form when I hit refresh of the browser? Thank you.

Answer 1

Have a look at the Post/Redirect/Get pattern, and the following article:

http://www.theserverside.com/tt/articles/article.tss?l=RedirectAfterPost

From the above link:

PRG pattern can be rephrased like this:

• Never show pages in response to POST
• Always load pages using GET
• Navigate from POST to GET using REDIRECT