iOS UIWebView 通过 cookie 完成自动登录实例

1、相关介绍

iOS在UIWebView中获取的cookie的方法：NSHTTPCookieStorage * nCookies = [NSHTTPCookieStorage sharedHTTPCookieStorage];

再具体获取某个域的cookie：NSArray* cookiesURL = [nCookies cookiesForURL:[NSURL URLWithString:@"你的URL"]];

通过[[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:userCookie]方法将 cookies来保存起来，但是这样虽然可以保存cookies但是你应用退出之后还是会丢失(其实是cookies过期的问题)，做好的方法是把cookies放到NSUserDefaults保存起来.

2、实现

1.在UIWebView的代理方法中实现获取cookies并将cookies放到NSUserDefaults保存起来：- (void)webViewDidFinishLoad:(UIWebView*)webView中写入

- (void)webViewDidFinishLoad:(UIWebView*)webView{
  
  NSArray *nCookies = [[NSHTTPCookieStoragesharedHTTPCookieStorage] cookies];
  for (NSHTTPCookie *cookie in nCookies){
    if ([cookie isKindOfClass:[NSHTTPCookie class]]){
      
      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.获取cookies：运行之后，UIWebView加载url之前获取保存好的cookies，并设置cookies，

NSArray *cookies =[[NSUserDefaults standardUserDefaults] objectForKey:@"cookies"];
  if (cookies.count >0) {
    NSMutableDictionary *cookieProperties = [NSMutableDictionarydictionary];
    [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 = [NSHTTPCookiecookieWithProperties:cookieProperties];
    [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookieuser];
  }

注意：要在[self.webView loadRequest:req];之前设置获取cookies！

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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iOS UIWebView 通过 cookie 完成自动登录实例

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