在ISO-8859-1中编码NSURL [英] encoding NSURL in ISO-8859-1

问题描述

我有一个包含TextFields的ViewController，我需要将这些值发送到专用的HTTP服务。
我主要担心的是编码类型，因为这个应用程序是法语版，可能包含一些重音符号（'é'，'è'等等...）但我还需要正确格式化我的字段，因为它也可能包含空格....

I have a ViewController containing TextFields and I would need to send those values to a dedicated HTTP service. My main concern comes from the encoding type, as this app is in French and may contain some accents ('é', 'è', etc,...) but also I need to format correctly my fields as it may contain spaces as well....

我尝试使用不同的方法，但我在服务器端仍然有错误的编码。

I tried to use different ways but I still have a wrong encoding on the server side.

这是我的代码示例：

    let url_to_request = "http://11.22.33.44:8080/SRV/addRepertoire"

    var params = "owner=\(User.sharedInstance.email)&adresse=\(adresse.text!)&nom=\(nom.text!)&telephone=\(telephone.text!)&commentaires=\(commentaires.text!)"

    //trying to encode in ISO-8859-1
    let dt = NSString(CString: params, encoding: NSISOLatin1StringEncoding)
    //preparing string to be used in a NSURL
    let final_url = dt!.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())

    print("URL loadRepertoire: \(url_to_request+"?"+final_url!)")

例如，字段nom包含bébé，其编码为b％C4％82％C5％A0b％C4％82％C5％A0，而我的服务器期待b％E9b％E9

for instance, field "nom" contains "bébé" which is encoded "b%C4%82%C5%A0b%C4%82%C5%A0" whereas my server is expecting "b%E9b%E9"

EDIT2：

我试图使用以下内容：

        let url_to_request = "http://11.22.33.44:8080/SRV/addRepertoire"

    let params = "owner=\(User.sharedInstance.email)&adresse=\(adresse.text!)&nom=\(nom.text!)&telephone=\(telephone.text!)&commentaires=\(commentaires.text!)"

    let tmp_url = url_to_request + "?" + params
    let final_url = tmp_url.stringByAddingPercentEncodingWithAllowedCharacters(NSCharacterSet.URLQueryAllowedCharacterSet())!

    print("URL addRepertoire: \(final_url)")

但结果仍然是：

b%C3%83%C2%A9b%C3%83%C2%A9, diplayed bébé instead of bébé

推荐答案

stringByAddingPercentEncodingWithAllowedCharacters 总是使用UTF-8表示，所以我担心你可能需要自己动手。

stringByAddingPercentEncodingWithAllowedCharacters always uses UTF-8 representation, so I'm afraid you may need to do it yourself.

extension String {
    func stringByAddingPercentEncodingForISOLatin1() -> String? {
        let allowedCharacterSet = NSCharacterSet(charactersInString:
                    "0123456789"
                    + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
                    + "abcdefghijklmnopqrstuvwxyz"
                    + "_-.~"
                    + "=&" //You'd better remove this and encode each param.
        )
        if let data = self.dataUsingEncoding(NSISOLatin1StringEncoding) {
            var result = ""
            for i in 0..<data.length {
                let ch = UnsafePointer<UInt8>(data.bytes)[i]
                if ch >= 0x80 || !allowedCharacterSet.characterIsMember(unichar(ch)) {
                    result += String(format: "%%%02X", ch)
                } else {
                    result.append(UnicodeScalar(ch))
                }
            }
            return result
        } else {
            return nil
        }
    }
}
"bébé".stringByAddingPercentEncodingForISOLatin1()! //->"b%E9b%E9"

这篇关于在ISO-8859-1中编码NSURL的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！