How To Disable IE caching and use Ajax technology to update data in a timely manner

When I was working on an Ajax project today, I found a problem: After submitting data, I cannot retrieve the submitted data. After careful analysis, the system finds that there is no message to retrieve data in the background logs, and the frontend does not prompt "reading data. Therefore, it should be a problem of system cache, So Google will solve it. The method is as follows:

Method 1: Add response. setheader ("cache-control", "No-cache, must-revalidate") to the server code ");

Method 2: javascript is used to add a random number as a parameter in the URL when Ajax is submitted. Req. Open (URL + "&" + math. Random ).

Cause: in IE, if the URL submitted by XMLHttpRequest is the same as that in history, the cache is used and it is not submitted to the server. Therefore, you cannot obtain the data you just submitted.