1 import org.apache.commons.lang.StringEscapeUtils;   2    3 public class EscapeHtml {   4    5     /**  6      * @param args  7      */   8     public static void main(String[] args) {   9         String aac = StringEscapeUtils.escapeHtml("啦啦啦");  10         System.out.println(aac);  11         String aa = StringEscapeUtils.unescapeHtml(aac);  12         System.out.println(aa);  13     }  14 }