URL解码/编码NSString [英] URL decoding/encoding NSString

问题描述

我正在使用three20的URL导航器，我想创建一个如下地图：

I am using three20's URL navigator and I want to create a map as follows:

[map from:[Group class] name:@"show" toURL:@"tt://group/(gid)/(name)"];

这里的问题名称可以是多个单词，因此中间有空格。
现在我需要对此 NSString 进行URL编码并对其进行解码。我该怎么做呢？
URL解码和编码的最简单方法是什么 NSString ？

The issue here name can be multiple words and so there is spaces in between. Now I need to URL encode this NSString and decode it back. How do I do this? What is the easiest way to URL decode and encode NSString?

推荐答案

- (NSString *)encodedURLString {
    NSString *result = (NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)self,
                                                                           NULL,                   
                                                                           CFSTR("?=&+"),          
                                                                           kCFStringEncodingUTF8); // encoding
    return [result autorelease];
}

- (NSString *)encodedURLParameterString {
    NSString *result = (NSString *)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
                                                                           (CFStringRef)self,
                                                                           NULL,
                                                                           CFSTR(":/=,!$&'()*+;[]@#?"),
                                                                           kCFStringEncodingUTF8);
    return [result autorelease];
}

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