代码实现native2assci

 1 public static void main(String[] args) {
 2         String unicode = "";
 3         String s="用户名";
 4         char[] charAry = new char[s.length()];
 5         for(int i=0; i<charAry.length; i++) {
 6           charAry[i] = (char)s.charAt(i);
 7            unicode+="\\u" + Integer.toString(charAry[i], 16);
 8         }
 9         System.out.println(unicode);
10     }