package Test01;

 import java.util.Properties;

 public class Test {

     public static void main(String[] args) {

         String s = "简介";

         String tt = gbEncoding(s);

         System.out.println(decodeUnicode("\\u7b80\\u4ecb"));

         System.out.println(HTMLDecoder.decode("开始"));

         String s1 = "\u7b80\u4ecb";

         System.out.println(s.indexOf("\\"));

         }

     public static String gbEncoding(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;

             }

         System.out.println("unicodeBytes is: " + unicodeBytes);

         return unicodeBytes;            }

     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进制parse整形字符串。

             buffer.append(new Character(letter).toString());

             start = end;

             }

         return buffer.toString();

         }

     }