1.string轉unicode

 public static String string2Unicode(String string) {
        StringBuffer unicode = new StringBuffer();
        for (int i = 0; i < string.length(); i++) {
            // 取出每一個字元
            char c = string.charAt(i);
            // 轉換為unicode
            unicode.append("\\u" + Integer.toHexString(c));
        }
        return
 
 unicode.toString();
    }

2.unicode轉string

public static String unicode2String(String unicode) {
        StringBuffer string = new StringBuffer();
        String[] hex = unicode.split("\\\\u");
        for (int i = 1; i < hex.length; i++) {
            // 轉換出每一個程式碼點
            int data = Integer.parseInt(hex[i], 16
 
);
            // 追加成string
            string.append((char) data);
        }
        return string.toString();
    }