复制代码 代码如下:
/// <summary>
/// 设置页面不被缓存
/// </summary>
private void SetPageNoCache()
{
Response.Buffer = true;
Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
Response.Expires = 0;
Response.CacheControl = "no-cache";
Response.AppendHeader("Pragma", "No-Cache");
}
/// 设置页面不被缓存
/// </summary>
private void SetPageNoCache()
{
Response.Buffer = true;
Response.ExpiresAbsolute = System.DateTime.Now.AddSeconds(-1);
Response.Expires = 0;
Response.CacheControl = "no-cache";
Response.AppendHeader("Pragma", "No-Cache");
}
1、取消缓存
（2）客户端取消
复制代码 代码如下:
<html>
<head>
<meta http-equiv="Expires" CONTENT="0">
<meta http-equiv="Cache-Control" CONTENT="no-cache">
<meta http-equiv="Pragma" CONTENT="no-cache">
</head>
<head>
<meta http-equiv="Expires" CONTENT="0">
<meta http-equiv="Cache-Control" CONTENT="no-cache">
<meta http-equiv="Pragma" CONTENT="no-cache">
</head>
（3）服务器具端取消：
服务器端：
复制代码 代码如下:
Response.Buffer = true;
Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
Response.Cache.SetExpires(DateTime.Now.AddDays(-1));
Response.Expires = 0;
Response.CacheControl = "no-cache";
Response.Cache.SetNoStore();
Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
Response.Cache.SetExpires(DateTime.Now.AddDays(-1));
Response.Expires = 0;
Response.CacheControl = "no-cache";
Response.Cache.SetNoStore();
Global里面：
复制代码 代码如下:
protected void Application_BeginRequest(Object sender, EventArgs e)
{
HttpContext.Current.Response.Cache.SetNoStore();
}
<%@ OutPutCache Location="None"%>
{
HttpContext.Current.Response.Cache.SetNoStore();
}
<%@ OutPutCache Location="None"%>
页面基类：
复制代码 代码如下:
public class PageBase : Page
{
public PageBase() {}
protected override OnLoad( EventArgs e ) {
Response.Cache.SetNoStore();
base.OnLoad();
}
}
{
public PageBase() {}
protected override OnLoad( EventArgs e ) {
Response.Cache.SetNoStore();
base.OnLoad();
}
}
最简单的办法 
学CSDN的这个论坛，在URL后面随机的加一些没用的参数，比如：
http://xxx/xxx/xxx.jpg?p=xxx
IE是用过URL来控制缓存的，这样就解决了