jqeury servelt ajax

$(function(){
 $('#ajaxBtn').click(function(){
  $.ajax({
   type : "POST",
   url : "test.qr",
   async : true,
   dataType : "html",
   data:{
    ajaxValue:"한글",
    ajaxValue2:"20"
   },
   success : function(data){
    alert(decodeURIComponent(data));
   },
   error : function(xhr){
    alert("error html = " + xhr.statusText)
   }
  });
 });
});

 

 

 

------------------servlet----------------------------

 

req.setCharacterEncoding("utf-8");
  String value = req.getParameter("ajaxValue");
  String value2 = req.getParameter("ajaxValue2");
  /*HashMap<String, String> map = new HashMap<String, String>();
  map.put("value", value);
  map.put("value2", value2);
  */
  PrintWriter out = resp.getWriter();
  
  out.println(URLEncoder.encode(value, "utf-8"));
  out.println(URLEncoder.encode(value2, "utf-8"));
  out.close();