Quick solution to Ajax caching problem under IE (get method)_javascript skills

After struggling for a long time, the program uses jquery’s load method to make requests. It’s strange why the request cannot be sent the second time. Baidu did some research, but I didn’t know that load is requested using the get method, so IE browser does not respond to

It's cached. I searched a lot of solutions online, and here is what I think is a more comprehensive solution. Mainly divided into client-side solution and server-side solution.

1. Client solution
IE access policy: Internet Options--Browsing History--Settings--Change the option of temporary Internet files to every visit It can also be used on web pages

1: Add a random function after the AJAX requested page, we can use the random time function

Add t=Math.random() after the URL sent by javascript
For example: URL "&" "t=" Math.random(); or new Date();

2: Add XMLHttpRequest.setRequestHeader("If-Modified-Since", "0") before XMLHttpRequest sends the request

Generally, the XMLHttpRequest here will not be used directly
You should be able to find code like this
XXXXX.send(YYYYYY);
Then, turn it into
XXXXX.setRequestHeader ("If-Modified-Since","0");
XXXXX.send(YYYYYY);

Practice has proven that both methods are very effective.
1. Add header("Cache-Control: no-cache, must-revalidate") on the server;
2. Add xmlHttpRequest.setRequestHeader("If -Modified-Since","0");
3. Add xmlHttpRequest.setRequestHeader("Cache-Control","no-cache"); before sending a request with ajax;
4. URL parameters in Ajax Add "?fresh=" Math.random(); //Of course the fresh parameter here can be chosen arbitrarily
5. The fourth method is similar to the third method, add "?timestamp=" after the URL parameter new Date().getTime(); //This method is recommended
6. Use POST instead of GET: Not recommended

2. Server-side solution:

Take Struts2 as an example:
Struts2 Server-side usage

Xml code

Copy code The code is as follows:

< /interceptor-stack>

Java code

Copy code The code is as follows:

public class CachingHeaderInterceptor extends AbstractInterceptor {

private static final long serialVersionUID = 1L;

public String intercept(ActionInvocation invocation) throws Exception {
ActionContext context = invocation.getInvocationContext();
HttpServletResponse response = (HttpServletResponse) context.get(StrutsStatics.HTTP_RESPONSE);
if (response ! = null) {
response.setHeader("Cache-Control", "no-cache");
response.setHeader("Pragma", "no-cache");
response.setHeader(" Expires", "-1");
}
return invocation.invoke();
}

}