NSURL带有花括号 [英] NSURL with Curly Braces

问题描述

NSURL不支持在网址中使用花括号（即{}）。我的应用程序需要与需要在URL中使用花括号的服务器通信。我正在考虑使用桥接器以Python或C ++编写网络代码，甚至考虑重写NSURL的C代码以使其接受花括号。我的远程服务器不接受百分比转义。

NSURL does not support the use of curly braces (i.e. {}) in URLs. My application needs to talk to a server that requires the use of curly braces in the URL. I'm considering using bridges to write the networking code in Python or C++, or even rewriting the C code for NSURL to make it accept curly braces. Percent escapes are not accepted by my remote server.

我还有其他好的选择吗？

Do I have any other good alternatives?

编辑：解释为什么addPercentEscapesUsingEncoding等在这里对我不起作用。

Explained why addingPercentEscapesUsingEncoding and the like don't work for me here.

推荐答案

如果你逃避括号，它会对你有用吗？

Will it work for you if you escape the braces?

此代码：

// escape {} with %7B and %7D
NSURL *url = [NSURL URLWithString:@"http://somesite.com/%7B7B643FB915-845C-4A76-A071-677D62157FE07D%7D.htm"];
NSLog(@"%@", url);

// {} don't work and return null
NSURL *badurl = [NSURL URLWithString:@"http://somesite.com/{7B643FB915-845C-4A76-A071-677D62157FE07D}.htm"];
NSLog(@"%@", badurl);

输出：

2011-11-30 21:25:06.655 Craplet[48922:707] http://somesite.com/%7B7B643FB915-845C-4A76-A071-677D62157FE07D%7D.htm
2011-11-30 21:25:06.665 Craplet[48922:707] (null)

因此，转义似乎有效

以下是您可以通过编程方式转义网址的方法：

Here's how you can programmatically escape the url:

NSString *escapedUrlString = [unescaped stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding];

编辑：

在下面的评论中，你说你的服务器不会接受编码的大括号，还有其他选择。首先，我会尝试修复服务器。如果那是不可能的......我没有用括号等尝试过这个......但是NS网络类下面的层是CFNetworking。

In your comment below, you said your server won't accept encoded braces and was there any other alternatives. First, I would try and get the server fixed. If that's not possible ... I haven't tried this with braces etc... but the layer below NS networking classes is CFNetworking.

看到这个：

http://developer.apple.com/library/ios/#documentation/Networking/Conceptual/CFNetwork/CFHTTPTasks/CFHTTPTasks.html#//apple_ref/doc/uid/TP30001132- CH5-SW2

来自该文档：

 CFStringRef url = CFSTR("http://www.apple.com");
 CFURLRef myURL = CFURLCreateWithString(kCFAllocatorDefault, url, NULL);
 CFStringRef requestMethod = CFSTR("GET");

 ....

再一次，没试过，我快用完了。可能会稍后尝试，但如果图层不起作用，您的第一个选项是向下移动。

Once again, haven't tried it and I'm running out. might try it later but if a layer isn't working your first options are to move down the stack.

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