Page cache troubles

When the system is launched, issues that are not noticed during normal development come one after another...

Today, I encountered a problem. Because of the page cache problem, the user did not set the browser to clear the page cache. As a result, the ticket numbers of many application forms are the same...

The final problem is solved. Although it is not solved, I would like to take this opportunity to learn how heroes solve the cache problem.

1. disable Client caching

<Meta HTTP-EQUIV = "Pragma" content = "no-Cache">
<Meta HTTP-EQUIV = "cache-control" content = "no-cache, must-revalidate">
<Meta HTTP-EQUIV = "expires" content = "wed, 26 Feb 1997 08:21:57 GMT">

2. Disable caching on the dynamic web page of the server. Add the following content:

Response. setheader ("Pragma", "No-Cache ");
Response. setheader ("cache-control", "No-Cache ");
Response. setdateheader ("expires", 0 );

The first two have been tried .... Finally, my colleagues used the filter to solve the problem.

(Httpservletresponse) Response). setheader ("Pragma", "No-Cache ");

(Httpservletresponse) Response). setheader ("cache-control", "No-Cache ");

(Httpservletresponse) Response). setheader ("expires", "0 ");

I didn't think of filters, but I still learned something.

Page cache troubles