ios - UIWebview 启用 cookie

Question

我试图通过 UIWebView 访问需要 cookie 的特定 URL，但我无法访问它，因为 cookie 被禁用。所以我做了以下事情:

• 启用 cookie:

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

• 创建 NSURLConnection 并从响应中提取 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，它会成功加载，之后我也可以在 UIWebView 中加载相同的 URL。你能帮我解决这个问题吗？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"];
        }
    }
}