将接受到的 token 放在cookie里面

root是我的IP地址

   tokenStr = @"";
   root = @"";

    //保存 包含 accessToken的Cookies
    NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
    [cookieProperties setObject:@"accessToken"  forKey:NSHTTPCookieName]; //给cookie取名
    [cookieProperties setObject:tokenStr forKey:NSHTTPCookieValue];
    [cookieProperties setObject:@"/" forKey:NSHTTPCookiePath]; //存放目录
    NSString * domain = [NSURL URLWithString:root].host;
    [cookieProperties setObject:domain forKey:NSHTTPCookieDomain]; //设置域名
    NSHTTPCookie * httpCookie = [NSHTTPCookie cookieWithProperties:cookieProperties];
    [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:httpCookie]; //存入仓库

// 如果是token 每次登陆 或者动态监测过期时间 会改变等 保持cookie唯一 可以选择使用这个

//清除多余的token 
    NSHTTPCookieStorage *cookieStorage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
    NSArray *cookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
    NSLog(@"Cookie:%@",cookies);
    for (NSHTTPCookie *tempCookie in cookies)
    {
        [cookieStorage deleteCookie:tempCookie];
    }
    ```