Bỏ dấu tiếng Việt

package bodautiengview;

import java.text.Normalizer;
import java.util.regex.Pattern;

public class StringUtils {

    public static String unAccent(String s) {
        String temp = Normalizer.normalize(s, Normalizer.Form.NFD);
        Pattern pattern = Pattern.compile("\\p{InCombiningDiacriticalMarks}+");
//        return pattern.matcher(temp).replaceAll("");
        return pattern.matcher(temp).replaceAll("").replaceAll("Đ", "D").replace("đ", "d");
    }
}