在UIWebView中加载具有身份验证的网站

时间：2013-12-09 13:22:18

标签： html ios iphone uiwebview

在我的应用中，我要加载一个网站。要访问此网站，我需要向服务器发送身份验证，并且我想在UIWebView中显示此页面的内容。我试图通过使用此代码来解决它：

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    NSString *stringUrl = @"http://54.204.6.246/magento8/acquista";
    [self sendRequestToUrl:stringUrl withMethod:@"GET"];
}

- (id)sendRequestToUrl:(NSString*)URL withMethod:(NSString*)method {
    NSURL *finalUrl;
    if ([method isEqualToString:@"GET"]) {
        finalUrl = [NSURL URLWithString:URL];
    } else {
        NSLog(@"Metodo non previsto");
    }
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:finalUrl];
    [request setHTTPMethod:method];
    NSString *authStr = [NSString stringWithFormat:@"%@:%@", @"user", @"password"];
    NSData *authData = [authStr dataUsingEncoding:NSUTF8StringEncoding];
    NSString *authValue = [NSString stringWithFormat:@"Basic %@", [authData base64EncodedString]];
    [request setValue:authValue forHTTPHeaderField:@"Authorization"];
    [request setValue:@"x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:@"Content-type"];

    NSURLConnection *connection = [NSURLConnection connectionWithRequest:request delegate:self];
    if (connection) {
        [connection start];
    }
    return connection;
}

-(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    recivedData = [[NSMutableData alloc]init];
}

-(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [recivedData appendData:data];
}
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    NSLog(@"%@", [NSString stringWithUTF8String:[recivedData bytes]]);
    [self.webViewPayment loadData: recivedData MIMEType:@"text/html" textEncodingName:@"UTF-8" baseURL:nil];
}

在我的NSLog中，我看到网站的HTML，如果我将此HTML粘贴到文件中，并尝试打开它，我可以看到该页面没有问题。这是HTML代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Acquista</title>
<meta name="description" content="Default Description" />
<meta name="keywords" content="Magento, Varien, E-commerce" />
<meta name="robots" content="INDEX,FOLLOW" />
<link rel="icon" href="http://54.204.6.246/magento8/skin/frontend/default/default/favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="http://54.204.6.246/magento8/skin/frontend/default/default/favicon.ico" type="image/x-icon" />
<!--[if lt IE 7]>
<script type="text/javascript">
//<![CDATA[
    var BLANK_URL = 'http://54.204.6.246/magento8/js/blank.html';
    var BLANK_IMG = 'http://54.204.6.246/magento8/js/spacer.gif';
//]]>
</script>
<![endif]-->
<link rel="stylesheet" type="text/css" href="http://54.204.6.246/magento8/skin/frontend/default/default/css/styles.css" media="all" />
<link rel="stylesheet" type="text/css" href="http://54.204.6.246/magento8/skin/frontend/base/default/css/widgets.css" media="all" />
<link rel="stylesheet" type="text/css" href="http://54.204.6.246/magento8/skin/frontend/default/default/css/print.css" media="print" />
<script type="text/javascript" src="http://54.204.6.246/magento8/js/prototype/prototype.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/lib/ccard.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/prototype/validation.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/scriptaculous/builder.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/scriptaculous/effects.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/scriptaculous/dragdrop.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/scriptaculous/controls.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/scriptaculous/slider.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/varien/js.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/varien/form.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/varien/menu.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/mage/translate.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/mage/cookies.js"></script>
<!--[if lt IE 8]>
<link rel="stylesheet" type="text/css" href="http://54.204.6.246/magento8/skin/frontend/default/default/css/styles-ie.css" media="all" />
<![endif]-->
<!--[if lt IE 7]>
<script type="text/javascript" src="http://54.204.6.246/magento8/js/lib/ds-sleight.js"></script>
<script type="text/javascript" src="http://54.204.6.246/magento8/skin/frontend/base/default/js/ie6.js"></script>
<![endif]-->

<script type="text/javascript">
//<![CDATA[
Mage.Cookies.path     = '/magento8';
Mage.Cookies.domain   = '.54.204.6.246';
//]]>
</script>

<script type="text/javascript">
//<![CDATA[
optionalZipCountries = ["HK","IE","MO","PA"];
//]]>
</script>
<script type="text/javascript">//<![CDATA[
        var Translator = new Translate([]);
        //]]></script></head>
<body class="page-empty  cms-page-view cms-acquista">
    <div>
                        <div class="std"><div style="background-color: #f5f5f5;">
<p><img style="display: block; margin-left: auto; margin-right: auto;" src="http://oi42.tinypic.com/34gsdcl.jpg" alt="" width="320" height="110" /></p>
</div></div>                    </div>
</body>
</html>

当我尝试在iPhone / iPhone模拟器上加载页面时，它会显示一个空白页面。我正在使用的代码有什么问题？

使用上述代码后我所看到的图像

当我尝试加载HTML时，你可以看到我的模拟器显示的内容Dinesh在他的回答中向我展示并使用我的代码：

enter image description here

网站应该是这样的：

enter image description here

2 个答案:

答案 0 :(得分：0)

在-(void)connectionDidFinishLoading:(NSURLConnection *)connection

检查你的self.webViewPayment是否有一些有效的地址（不应该是零）

如果以上不起作用，请尝试此

-(void)connectionDidFinishLoading:(NSURLConnection *)connection function
{
    NSString* respString = [NSString stringWithUTF8String:[recivedData bytes]];
   [self.webViewPayement loadHTMLString:respString baseURL:nil]; 
}

在你的。

答案 1 :(得分：0)

注意：

这不起作用：

[request setValue:@"x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:@"Content-type"];

MIME类型x-www-form-urlencoded没有任何参数。所以，你不能设置一个字符集。更重要的是，语法无效。您的服务器可能会抱怨并向您发送400（不良请求）。

改为使用

[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-type"];

AFAIK，客户端无法为form-urlencoded参数指定字符编码。通常，字符编码由服务器在返回表单时给出。当客户端无法从表单中推断出字符编码时 - 或者根本没有表单时，例如在REST API中，客户端应该使用 Unicode UTF-8 。

好奇：你从哪里获得这种格式错误的内容？

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