jquery Ajax submission form from Action Pass value to JSP implementation summary _ajax related

JSP page：

Copy Code code as follows:

var Clienttel = $ ("#clientTel"). Val ();
var ActivityID = $ ("#activityId"). Val ();
$.ajax ({
Type: "POST",//Send mode
URL: "/arweb/reserve/savecode.action",//Path
Data: "clienttel=" +clienttel+ "&activityid=" +activityid,
Success:function (text) {$ ("#randomCode"). val (text);
Error:function (text) {alert ("Sorry, the user ID does not exist, please enter the correct user ID");}
});

Action Class：

Copy Code code as follows:

HttpServletResponse res = Servletactioncontext.getresponse ();
Res.reset ();
Res.setcontenttype ("Text/html;charset=utf-8");
PrintWriter pw = Res.getwriter ();
Pw.print (random);
Pw.flush ();
Pw.close ();

Pw.print (random); The random here is the value to be passed to the JSP, in the JSP, Success:function (text) Here is the text that receives the value from the action.