Objective-c UrlEncode UrlDecode

@interface nsstring (Stringbydecodingurlformat)-(NSString *) Stringbydecodingurlformat; -(nsstring*) stringbyurlencodingstringparameter; @end

@implementationnsstring (Stringbydecodingurlformat)-(NSString *) stringbydecodingurlformat{NSString*result = [(NSString *) Self stringbyreplacingoccurrencesofstring:@"+"Withstring:@" "]; Result=[result stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding]; returnresult;}//encode-(nsstring*) stringbyurlencodingstringparameter{NSString*resultstr =Self ; Cfstringref originalstring=(__bridge cfstringref) self; Cfstringref leaveunescaped= Cfstr (" "); Cfstringref forceescaped= Cfstr ("!* ' ();: @&=+$,/?%#[]");    Cfstringref Escapedstr; Escapedstr=Cfurlcreatestringbyaddingpercentescapes (Kcfallocatordefault,                                                         Originalstring, leaveunescaped,        forceescaped, kCFStringEncodingUTF8); if(escapedstr) {nsmutablestring*MUTABLESTR = [nsmutablestring stringwithstring: (__bridge NSString *) ESCAPEDSTR];        Cfrelease (ESCAPEDSTR); [Mutablestr replaceoccurrencesofstring:@" "withstring:@"%20"Options:0Range:nsmakerange (0, [mutablestr length])]; ResultStr=Mutablestr; }    returnResultStr;}@end

The above code, if the classification of nsstring can be used directly

Objective-c UrlEncode UrlDecode