UIWebview启用cookie

Question

我正在尝试通过UIWebView访问需要Cookie的特定网址，但由于禁用了Cookie，因此无法访问该网址。所以我做了以下事情：

• 启用Cookie：

  NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
  
  [cookieStorage setCookieAcceptPolicy:NSHTTPCookieAcceptPolicyAlways];
  

• 创建了NSURLConnection并从响应中提取了Cookie：

  NSArray *cookies = [ NSHTTPCookie cookiesWithResponseHeaderFields: [ httpResponse allHeaderFields ] forURL:response.URL];
  
  [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookies: cookies forURL: response.URL mainDocumentURL:nil];
  

但这都没有帮助。但是，如果我在safari中启动URL，则会成功加载，之后我也可以在UIWebView中加载相同的URL。你可以帮我解决这个问题，如何为UIWebView启用cookie？

提前致谢

Answer 1

创建NSURLRequest后，将sharedHTTPCookieStorage中的所有Cookie复制到NSURLRequest：

NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPShouldHandleCookies:YES];
[self addCookies:cookies forRequest:request];
[_webView loadRequest:request];

并添加addCookies:forRequest方法

- (void)addCookies:(NSArray *)cookies forRequest:(NSMutableURLRequest *)request
{
    if ([cookies count] > 0)
    {
        NSHTTPCookie *cookie;
        NSString *cookieHeader = nil;
        for (cookie in cookies)
        {
            if (!cookieHeader)
            {
                cookieHeader = [NSString stringWithFormat: @"%@=%@",[cookie name],[cookie value]];
            }
            else
            {
                cookieHeader = [NSString stringWithFormat: @"%@; %@=%@",cookieHeader,[cookie name],[cookie value]];
            }
        }
        if (cookieHeader)
        {
            [request setValue:cookieHeader forHTTPHeaderField:@"Cookie"];
        }
    }
}