jquery requests the servlet to implement AJAX asynchronous requests

Ajax can send asynchronous requests without a flush effect, but using JavaScript is cumbersome, and query provides some encapsulated ways to make the operation easier:

$.ajax () Method:

function SendRequest () {        $.ajax ({            "Hello",            "GET            ",            "txt", "name= Zhangsan ",            function(result) {                alert (result.responsetext);            }}        );    

$.get () Method:

function Sendrequestbyget () {        $.get("Hello", "Name=lisi",function(result) {            alert (result);        });    }

$.post () Method:

function Sendrequestbypost () {        $.post("Hello", "Name=wangwu",function(result) {            alert ( result);}        );    

$.load () Method:

The     //load code is equivalent using the following $get () method    /*     $get (URL, data,  function (result) {                //Populates the result data into a page element        $ ("#h2"). HTML (result);       });     */    function load () {        $ ("H2"). Load ("Hello", "Name=hahaha");    }

The hello file for the above asynchronous request:

protected void DoPost (httpservletrequest req, HttpServletResponse resp)             throws servletexception, IOException {        String name=req.getparameter ("name");        Resp.getwriter (). print (name);    }

jquery requests the servlet to implement AJAX asynchronous requests