about using $. Selection and viewing of Ajax () control buttons

Front-end JSP page code:

Please select a version:
<br/>
<div>
Push version: <input type= "button" id= "post1" class = "ver" value= "Push"/><br/>
Response version: <input type= "button" id= "post2" class = "ver" value= "Response"/><br/>
Current version view: <button id= "Post3" value= "VerCheck" > View </button>
</div>
<br/>
<br/>
<div id = "Result" ></div>
<script src= "<%=path%>/js/jquery.min.js" ></script>
<script src= "<%=path%>/js/verselect.js" ></script>

JS Control Code:

$ (function () {
$ (' #post1 '). Click (function () {
Alert (1);
$ (' #result '). innerhtml= "";
var vers = "0";
$.ajax ({
DataType: "HTML",
Type: ' POST ',
url:g.basepath+ '/verselect.do ',
Data: {
Vers
},
Success:function (data) {
$ (' #result '). HTML (data)
}
});
})
$ (' #post2 '). Click (function () {
Alert (2);
$ (' #result '). innerhtml= "";
var vers = "1";
$.ajax ({
DataType: "HTML",
Type: ' POST ',
url:g.basepath+ '/verselect.do ',
Data: {
Vers
},
Success:function (data) {
$ (' #result '). HTML (data)
}
});
})
$ (' #post3 '). Click (function () {
Alert (3);
$ (' #result '). innerhtml= "";
var ver = $ (' #post3 '). Val ();
$.ajax ({
DataType: "HTML",
Type: ' POST ',
url:g.basepath+ '/verselect.do ',
Data: {
Ver
},
Success:function (data) {
$ (' #result '). HTML (data)
}
});
})
})

Background request processing, where post submission requests are used

Import java.io.IOException;
Import Java.util.concurrent.atomic.AtomicBoolean;

Import javax.servlet.ServletException;
Import Javax.servlet.http.HttpServlet;
Import Javax.servlet.http.HttpServletRequest;
Import Javax.servlet.http.HttpServletResponse;

public class Verselectservlet extends HttpServlet {

public static Version = FALSE;

@Override
protected void doget (HttpServletRequest request, httpservletresponse response)
Throws Servletexception, IOException {
DoPost (request, response);
}

@Override
protected void DoPost (HttpServletRequest request,
HttpServletResponse response) throws Servletexception, IOException {
String vers = Request.getparameter ("vers");
if ("1". Equals (vers)) {
Response.getwriter (). Print ("Switched to current version");

Version = Ture;
}
if ("0". Equals (vers)) {
Response.getwriter (). Write ("Switched to current version");

Version = FALSE;

}
String ver = request.getparameter ("ver");
if ("VerCheck". Equals (ver)) {
if (!version) {
Response.getwriter (). Write ("Currently 0 version");
}
if (version) {
Response.getwriter (). Write ("Currently 1 version");
}
}
}
}

about using $. Selection and viewing of Ajax () control buttons