ios webview清除缓存

UIWebView清除Cookie：

//清除cookies
NSHTTPCookie *cookie;
NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (cookie in [storage cookies]) 
{
    [storage deleteCookie:cookie];
}      

UIWebView清除缓存：
      

//清除UIWebView的缓存
[[NSURLCachesharedURLCache] removeAllCachedResponses];      
   

By ItNoob.Matrix 链接 http://www.cnblogs.com/ItNoob
      

NSURLCache * cache = [NSURLCache sharedURLCache];
      

[cache removeAllCachedResponses];
      

[cache setDiskCapacity:0];
      

[cache setMemoryCapacity:0];