iOS：WebView加载网址

Question

我试图在UIWebView打开以下URL，但无法加载而将其更改为：

 http://www.google.com

工作良好。

我要加载的网址是：

[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:@"%@%@%@%@%@",@"http://m.forrent.com/search.php?address=",[[bookListing objectForKey:@"Data"] objectForKey:@"zip"],@"&beds=&baths=&price_to=0#{\"lat\":\"0\",\"lon\":\"0\",\"distance\":\"25\",\"seed\":\"1622727896\",\"is_sort_default\":\"1\",\"sort_by\":\"\",\"page\":\"1\",\"startIndex\":\"0\",\"address\":\"",[[bookListing objectForKey:@"Data"] objectForKey:@"zip"],@"\",\"beds\":\"\",\"baths\":\"\",\"price_to\":\"0\"}"]]]];

更新：

我故意逃过双引号，否则它会给我一个错误。 我在浏览器中打开（在笔记本电脑上）检查了网址，它完全正常：

浏览器中的网址：

http://m.forrent.com/search.php?address=92115&beds=&baths=&price_to=0#{%22lat%22:%220%22,%22lon%22:%220%22,%22distance%22:%2225%22,%22seed%22:%221622727896%22,%22is_sort_default%22:%221%22,%22sort_by%22:%22%22,%22page%22:%221%22,%22startIndex%22:%220%22,%22address%22:%2292115%22,%22beds%22:%22%22,%22baths%22:%22%22,%22price_to%22:%220%22}

Answer 1

你的代码行看起来很复杂，但基本上它是一个非常简单的代码。

您应该将此代码从单行分解为多行，这些行更易读。 这也将允许您记录并检查您实际创建的URL，如下所示：

NSLog(@"My url: %@", urlString);

更新：我看到你添加了完整的网址。 Webview确实无法加载该URL（UIWebkit错误101）。

导致问题的url部分是params中跟随的'＃'字符和字典。 你应该url编码网址的那部分。

尝试这个：

NSString *address = @"http://m.forrent.com/search.php?";
NSString *params1 = @"address=92115&beds=&baths=&price_to=0";

// URL encode the problematic part of the url.
NSString *params2 = @"#{%22lat%22:%220%22,%22lon%22:%220%22,%22distance%22:%2225%22,%22seed%22:%221622727896%22,%22is_sort_default%22:%221%22,%22sort_by%22:%22%22,%22page%22:%221%22,%22startIndex%22:%220%22,%22address%22:%2292115%22,%22beds%22:%22%22,%22baths%22:%22%22,%22price_to%22:%220%22}";
params2 = [self escape:params2];

// Build the url and loadRequest
NSString *urlString = [NSString stringWithFormat:@"%@%@%@",address,params1,params2];
[self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:urlString]]];

我使用的转义方法：

- (NSString *)escape:(NSString *)text
{
    return (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes(NULL,
                                                                        (__bridge CFStringRef)text, NULL,
                                                                        (CFStringRef)@"!*'();:@&=+$,/?%#[]",
                                                                        kCFStringEncodingUTF8);
}

Answer 2

我会尝试编码您网址中的所有键/值项。 特别是花括号（{}）和散列（＃）符号可能会导致问题。