[JQuery tutorial] jquery getting started instance tutorial 3 ajax application

We are in the last chapter jquery Beginners Introductory example teaching two user registration (simple form verification) (/html/jqueryjiaocheng/200807/17-519.html)

There's a line of statements inside

$.get ("php/user_register.php", {act:$ (this). attr ("IDs"), v:$ (This). Val ()},function (TXT) {
msg.html (TXT);

})

This is a simple example of jquery ajax application

What is Ajax

Ajax is all called "Asynchronous JavaScript and XML" (Asynchronous JavaScript and XML), a Web development technology that creates interactive Web applications.

If you are not very clear please refer to http://baike.baidu.com/view/1641.htm

Now let's look at jquery's support for Ajax.

First, let's talk about $.get.

$.get (URL, params, callback)

Request Mount Remote page with Get method

return value: XMLHttpRequest

Parameters:

• URL (String): The URL address where the page is loaded.
• params (MAP): (optional) key/value pair parameters sent to the server.
• Callback (function): (optional) functions that are executed when a remote page is loaded to completion.

Instance:
For example file Demo1 HTML code as follows
<a href= "javascript:void (0)" >demo</a>
<div id= "Show" style= "Border:solid 1px #FF6600" > added in Content:</div>

The get.html code is as follows
<strong>ajax Get content </strong>

Now I'm going to implement the click Demo to load the get.html content into the div.

<script language= "JavaScript" >
<!--
$ ("document"). Ready (function () {
$ ("a"). Click (function () {//div binding Sentinel Event
$.get ("get.html", function (data) {
$ ("#show"). HTML ($ ("#show"). HTML () + "<br>" +data);
})
})
})
-->
</SCRIPT>

If you need to take parameters only
$.get ("get.html", {parameter name 1: Parameter 1 value), parameter name 2: Parameter 2 value},function (data) {
$ ("#show"). HTML (data);
})

$.post (URL, params, callback)

mount a remote page in HTTP POST mode

return value: XMLHttpRequest

Parameters:

• URL (String): The URL address where the page is loaded.
• params (MAP): (optional) key/value pair parameters sent to the server.
• Callback (function): (optional) functions that are executed when data is loaded into completion.

About $.post Demo I'm not going to write it. and $.get exactly the same just one is get way request one is post mode request