Wie URL-codieren Sie das @ -Symbol im iPhone SDK?

Question

Verwenden von stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding zu URL-encode codiert ein NSString das @ -Symbol nicht. Was ist der richtige Weg, um dies zu lösen? Vielen Dank.

Answer 1

Fügen Sie diese nach der Codezeile Sie bereits (den Hörer ab und ändern, usw. zu Ihrer eigenen Variablen) haben:

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

Wenn Sie sicherstellen möchten, dass alles codiert ist, hier ist der beste übrigens:

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]; 

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

Answer 2

Der beste Weg, zu kodieren URL mit diesem ist, von meinem Blog-Post http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/:

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