Comment encoder l'URL du symbole @ dans le SDK iPhone?

Question

Utilisation de stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding pour encoder une URL NSString n'encode pas le symbole @. Quelle est la bonne façon de résoudre cela? Merci.

Answer 1

Ajouter ce après la ligne de code que vous avez déjà (et changer le récepteur, etc. à vos propres variables):

[escaped replaceOccurrencesOfString:@"@" withString:@"%40" options:NSCaseInsensitiveSearch range:wholeString]; 

Si vous voulez vous assurer que tout est codé, voici le meilleur chemin:

NSMutableString *escaped = [actionString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];  
[escaped replaceOccurrencesOfString:@"&" withString:@"%26" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"+" withString:@"%2B" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"," withString:@"%2C" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"/" withString:@"%2F" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@":" withString:@"%3A" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@";" withString:@"%3B" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"=" withString:@"%3D" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"?" withString:@"%3F" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"@" withString:@"%40" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@" " withString:@"%20" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"\t" withString:@"%09" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"#" withString:@"%23" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"<" withString:@"%3C" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@">" withString:@"%3E" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"\"" withString:@"%22" options:NSCaseInsensitiveSearch range:wholeString]; 
[escaped replaceOccurrencesOfString:@"\n" withString:@"%0A" options:NSCaseInsensitiveSearch range:wholeString]; 

(de Roger @Iphone SDk : Issue with ampersand in the URL string)

Answer 2

La meilleure façon de coder l'URL est avec cela, de mon blog http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/:

NSString * encodedString = (NSString *)CFURLCreateStringByAddingPercentEscapes(
    NULL, 
    (CFStringRef)unencodedString, 
    NULL, 
    (CFStringRef)@"!*'();:@&=+$,/?%#[]", 
    kCFStringEncodingUTF8);