Java实现 中文转换成Unicode编码 和 Unicode编码转换成中文

想要实现中文字符转换为Unicode编码的话主要用到的是一个这样的包，自己可以去API文档里面查看下的

java.util.Properties;

直接进入主题吧，主要是

 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();
         }
     }