這兩天有個項目需求，在網(wǎng)上找了好多博文都不可以拿來就能實現(xiàn)（對于伸手黨怎么能行），為了避免浪費大家的時間我在這里給出一份一定可行的方法：

1、相關(guān)知識點介紹

1. iOS在UIWebView中獲取的cookie的方法：NSHTTPCookieStorage * nCookies = [NSHTTPCookieStorage sharedHTTPCookieStorage]
2. 再具體獲取某個域的餅干：NSArray* cookiesURL = [nCookies cookiesForURL：[NSURL URLWithString：@“你的URL”]];
3. 通過[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie]方法將 cookies來保存起來，但是這樣雖然可以保存cookies但是你應(yīng)用退出之后還是會丟失(其實是cookies過期的問題)，做好的方法是把cookies放到NSUserDefaults保存起來:

2、實現(xiàn)方法

• 簡單粗暴直接上碼：GitHub Demo歡迎star, 你的star就是對我最好的鼓勵.
  1.在UIWebView的代理方法中實現(xiàn)獲取cookies并將cookies放到NSUserDefaults保存起來：(void)webViewDidFinishLoad:(UIWebView *)webView中寫入
  需要注意的是你的CookieName，

 NSArray *nCookies = [[NSHTTPCookieStorage sharedHTTPCookieStorage] cookies];
    NSHTTPCookie *cookie;
    for (id c in nCookies)
    {
        if ([c isKindOfClass:[NSHTTPCookie class]])
        {
            cookie=(NSHTTPCookie *)c;
            if ([cookie.name isEqualToString:@"PHPSESSID"]) {
                NSNumber *sessionOnly = [NSNumber numberWithBool:cookie.sessionOnly];
                NSNumber *isSecure = [NSNumber numberWithBool:cookie.isSecure];
                NSArray *cookies = [NSArray arrayWithObjects:cookie.name, cookie.value, sessionOnly, cookie.domain, cookie.path, isSecure, nil];
                [[NSUserDefaults standardUserDefaults] setObject:cookies forKey:@"cookies"];
                break;
            }
        }
    }

2.獲取cookies：運行之后，UIWebview加載url之前獲取保存好的cookies，并設(shè)置cookies，

 NSArray *cookies =[[NSUserDefaults standardUserDefaults]  objectForKey:@"cookies"];
        NSMutableDictionary *cookieProperties = [NSMutableDictionary dictionary];
        [cookieProperties setObject:[cookies objectAtIndex:0] forKey:NSHTTPCookieName];
        [cookieProperties setObject:[cookies objectAtIndex:1] forKey:NSHTTPCookieValue];
        [cookieProperties setObject:[cookies objectAtIndex:3] forKey:NSHTTPCookieDomain];
        [cookieProperties setObject:[cookies objectAtIndex:4] forKey:NSHTTPCookiePath];
        NSHTTPCookie *cookieuser = [NSHTTPCookie cookieWithProperties:cookieProperties];
        [[NSHTTPCookieStorage sharedHTTPCookieStorage]  setCookie:cookieuser];

注意：要在[self.webView loadRequest:req];之前設(shè)置獲取cookies！
到現(xiàn)在為止你的應(yīng)用肯定就已經(jīng)實現(xiàn)了你想要的功能！
感謝樓下@440bd488f596這位同學(xué)提供的新方案，供大家參考：

NSArray *headeringCookie = [NSHTTPCookie cookiesWithResponseHeaderFields:
[NSDictionary dictionaryWithObject:
[[NSString alloc] initWithFormat:@"token=%@;",self.token]
forKey:@"Set-Cookie"]
forURL:url];

（其中連接上面實現(xiàn)的稍微有些問題，我在我這里已經(jīng)進(jìn)行了修改）功能實現(xiàn)參考鏈接

                                                                             ----By ZPengs