iOS中http请求使用cookie

NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [cookieJar cookies]) {
   NSLog(@"%@", cookie);
}

这样就列出了所有已保存的cookie,如果当前为空怎么办呢？随便请求一个url喽

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL 
                                           cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData 
                                       timeoutInterval:3];
  
  [NSURLConnection sendSynchronousRequest:request 
                        returningResponse:nil
                                    error:nil];
  
  NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
  for (NSHTTPCookie *cookie in [cookieJar cookies]) {
    NSLog(@"%@", cookie);
  }

是不是得到了类似:

<NSHTTPCookie version:0 name:"PHPSESSID" value:"evf5rcboo8th1dnl53fs4ukmt2" expiresDate:(null) created:2012-03-13 14:28:13 +0000 (3.53342e+08) sessionOnly:TRUE  path:"/" isSecure:FALSE>

的东东？这就是cookie啦

怎么清空cookie呢？

NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
  [cookieProperties setObject:@"username" forKey:NSHTTPCookieName];
  [cookieProperties setObject:@"rainbird" forKey:NSHTTPCookieValue];
  [cookieProperties  forKey:NSHTTPCookieDomain];
  [cookieProperties  forKey:NSHTTPCookieOriginURL];
  [cookieProperties setObject:@"/" forKey:NSHTTPCookiePath];
  [cookieProperties setObject:@"0" forKey:NSHTTPCookieVersion];
 
  NSHTTPCookie *cookie = [NSHTTPCookie cookieWithProperties:cookieProperties];
  [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];

这样就可以了。输入一下，是不是得到了下面这样的结果：

<NSHTTPCookie version:0 name:"username" value:"rainbird" expiresDate:(null) created:2012-03-13 14:36:53 +0000 (3.53342e+08) sessionOnly:TRUE  path:"/" isSecure:FALSE>

其实ios的cookie就这么简单。如果mac也支持这么干的话，那以后写点登陆的脚本不是简单多了:)