\u5E7F\u4E1C \u5E7F\u4E1C\u7701这是什么编码格式？解决办法

   /**      * 字符串转化为unicode      * @param gbString      * @return      */     public static String encodeUnicode(final String gbString) {         char[] utfBytes = gbString.toCharArray();         String unicodeBytes = "";         for (int byteIndex = 0; byteIndex < utfBytes.length; byteIndex++) {             String hexB = Integer.toHexString(utfBytes[byteIndex]);             if (hexB.length() <= 2) {                 hexB = "00" + hexB;             }             //unicodeBytes = unicodeBytes + "\\u" + hexB;             unicodeBytes = unicodeBytes + hexB;         }         System.out.println(unicodeBytes);         return unicodeBytes;     }     // unicode转化汉字     public static StringBuffer decodeUnicode(String utfStr) {         final StringBuffer buffer = new StringBuffer();         String charStr = "";         String operStr = utfStr;         for(int i =0 ; i < utfStr.length() ;i=+4){             charStr = operStr.substring(0, 4);             operStr = operStr.substring(4, operStr.length());             char letter = (char) Integer.parseInt(charStr, 16);             buffer.append(new Character(letter).toString());         }         return buffer;     }