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Android - How to Convert String to utf-8 in android

I can't convert a String to UTF-8 in android. please help me!!

s1=URLEncoder.encode("臺北市")

result : %EF%BF%BDO%EF%BF%BD_%EF%BF%BD%EF%BF%BD

But "臺北市" should be encoded as "%E8%87%BA%E5%8C%97%E5%B8%82"

like image 704
林子洋 Avatar asked Jun 29 '15 06:06

林子洋


2 Answers

public class StringFormatter {

    // convert UTF-8 to internal Java String format
    public static String convertUTF8ToString(String s) {
        String out = null;
        try {
            out = new String(s.getBytes("ISO-8859-1"), "UTF-8");
        } catch (java.io.UnsupportedEncodingException e) {
            return null;
        }
        return out;
    }

    // convert internal Java String format to UTF-8
    public static String convertStringToUTF8(String s) {
        String out = null;
        try {
            out = new String(s.getBytes("UTF-8"), "ISO-8859-1");
        } catch (java.io.UnsupportedEncodingException e) {
            return null;
        }
        return out;
    }

}

You can convert your string using StringFormatter class to your code.

You want to convert to UTF-8:

String normal="This normal string".
String utf=StringFormatter.convertStringToUTF8(normal);

You want to convert UTF-8 to normal format:

String normal=StringFormatter.convertUTF8ToString(normal);
like image 141
Paras Santoki Avatar answered Oct 10 '22 23:10

Paras Santoki


In http://developer.android.com/reference/java/net/URLEncoder.html you can read that the you used is deprecated and that you should use static String encode(String s, String charsetName)

So URLEncoder.encode("臺北市", "utf-8") should do the trick.

like image 26
sonic Avatar answered Oct 11 '22 00:10

sonic