IOS中对Url进行编码和解码

来源：互联网发布：gdi 高级编程编辑：程序博客网时间：2024/05/16 05:04

1.非ARC模式下

- (NSString *)encodeToPercentEscapeString: (NSString *) input
{
    // Encode all the reserved characters, per RFC 3986
    // (<http://www.ietf.org/rfc/rfc3986.txt>)
    NSString *outputStr = (NSString *) 
    CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
                                            (CFStringRef)input,
                                            NULL,
                                            (CFStringRef)@"!*'();:@&=+$,/?%#[]",
                                            kCFStringEncodingUTF8);
    return outputStr;
}

- (NSString *)decodeFromPercentEscapeString: (NSString *) input
{
    NSMutableString *outputStr = [NSMutableString stringWithString:input];
    [outputStr replaceOccurrencesOfString:@"+"
                               withString:@" "
                                  options:NSLiteralSearch
                                    range:NSMakeRange(0, [outputStr length])];

    return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}

2. ARC模式下

- (NSString *)encodeToPercentEscapeString: (NSString *) input
{
NSString* outputStr = (__bridge NSString *)CFURLCreateStringByAddingPercentEscapes(

NULL, /* allocator */

(__bridge CFStringRef)input,

NULL, /* charactersToLeaveUnescaped */

(CFStringRef)@"!*'();:@&=+$,/?%#[]",

kCFStringEncodingUTF8);

return outputStr;
}
- (NSString *)decodeFromPercentEscapeString: (NSString *) input
{
NSMutableString *outputStr = [NSMutableString stringWithString:input];
[outputStr replaceOccurrencesOfString:@"+"
withString:@""
options:NSLiteralSearch
range:NSMakeRange(0, [outputStr length])];

return [outputStr stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
}

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