iPhone URL编码问题

Question

Have a slight problem. Trying to post XML to a server. To do this, I have to encode the XML string in URL format.

NSString *encodedString = [NSString stringWithFormat:@"xmlValue=%@",[post stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding]];

That's what I have and it works for all the characters EXCEPT the '='. This does not get converted to %3D. Has anyone else ever had this problem before? Am I specifying the wrong encoding type? I have tried "NSUTF8StringEncoding" as well.

This is a little piece of the XML string:

@"<xml-service application=\"broadcast\" type=\"REQUEST\"><identity token=\"xxxxxxxx\".....

Any help would be appreciated! Thanks

Answer 1

This should solve your problem:

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

Source

Answer 2

You can try this. I found this helpful.

NSString *sampleUrl = @"http://www.google.com/search.jsp?params=Java Developer";
NSString* encodedUrl = [sampleUrl stringByAddingPercentEscapesUsingEncoding:
 NSASCIIStringEncoding];