ios Cookie 问题

当你访问一个网站时，不管你愿意或者不愿意，NSURLRequest都会帮你主动记录下来你访问的站点设置的cookie，而且很负责任的，当你下次再访问这个站点时，NSURLRequest会拿着上次保存下来了的cookie继续去请求。

查看Cookie

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

NSHTTPCookieStorage *sharedHTTPCookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
    NSArray *cookies = [sharedHTTPCookieStorage cookiesForURL:[NSURL URLWithString:theURL]];
    NSEnumerator *enumerator = [cookies objectEnumerator];
    NSHTTPCookie *cookie;
    while (cookie = [enumerator nextObject]) {
        NSLog(@"COOKIE{name: %@, value: %@}", [cookie name], [cookie value]);
    }

 

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://blog.cnrainbird.com"]
                                           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 domain:"blog.cnrainbird.com" path:"/" isSecure:FALSE>

清空cookie

NSHTTPCookieStorage *cookieJar = [NSHTTPCookieStorage sharedHTTPCookieStorage];
  NSArray *_tmpArray = [NSArray arrayWithArray:[cookieJar cookies]];
  for (id obj in _tmpArray) {
    [cookieJar deleteCookie:obj];
  }

设置指定的cookie

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

http://rainbird.blog.51cto.com/211214/805173/