java html中文汉字 反转义

 import org.apache.commons.lang.StringEscapeUtils;  

 public class EscapeHtml {  

     /**
      * @param args
      */
     public static void main(String[] args) {
         String aac = StringEscapeUtils.escapeHtml("啦啦啦");
         System.out.println(aac);
         String aa = StringEscapeUtils.unescapeHtml(aac);
         System.out.println(aa);
     }
 }