//中文轉Unicode
      public static String gbEncoding(final String gbString) {   //gbString = "測試"
          char[] utfBytes = gbString.toCharArray();   //utfBytes = [測, 試]
          String unicodeBytes = "";   
          for (int byteIndex = 0; byteIndex < utfBytes.length; byteIndex++) {   
              String hexB = Integer.toHexString(utfBytes[byteIndex]);   //轉換為16進位制整型字串
                if (hexB.length() <= 2) {   
                    hexB = "00" + hexB;   
               }   
               unicodeBytes = unicodeBytes + "\\u" + hexB;   
          }   
          System.out.println("unicodeBytes is: " + unicodeBytes);   
          return unicodeBytes;   
      }
 

//Unicode轉中文
      public static String decodeUnicode(final String dataStr) {   
         int start = 0;   
         int end = 0;   
         final StringBuffer buffer = new StringBuffer();   
         while (start > -1) {   
             end = dataStr.indexOf("\\u", start + 2);   
             String charStr = "";   
             if (end == -1) {   
                 charStr = dataStr.substring(start + 2, dataStr.length());   
             } else {   
                 charStr = dataStr.substring(start + 2, end);   
             }   
             char letter = (char) Integer.parseInt(charStr, 16); // 16進位制parse整形字串。   
             buffer.append(new Character(letter).toString());   
             start = end;   
         }   
         return buffer.toString();   
      }