Detailed explanation of ajax-get() method instances in jQuery

Use get, post and ajax methods in jquery to transfer data to the server. Let’s continue to learn the ajax-get() method in jQuery through this article. Please see below for detailed introduction.

Example

Use AJAX GET request to change the text of div element:

$("button").click(function(){
 $.get("demo_ajax_load.txt", function(result){
 $("div").html(result);
 });
});

Try it yourself

Definition and Usage

get() method loads information through a remote HTTP GET request.

This is a simple GET request function to replace the complex $.ajax. The callback function can be called when the request is successful. If you need to execute a function on error, use $.ajax.

Grammar

$(selector).get(url,data,success(response,status,xhr),dataType)

Detailed description

This function is the abbreviation of Ajax function , equivalent to:

$.ajax({
 url: url,
 data: data,
 success: success,
 dataType: dataType
});

According to the different MIME types of the response, the return data passed to the success callback function is also different. These data can be XML root elements, text strings, JavaScript file or JSON object. You can also pass the textual status of the response to the success callback function.

With jQuery 1.4, you can also pass an XMLHttpRequest object to the success callback function.

Example

Request test.php web page, ignore the return value:

$.get("test.php");

More examples

Example 1

Request the test.php web page, send 2 parameters, ignore the return value:

$.get("test.php", { name: "John", time: "2pm" } );

Example 2

Display test.php return value (HTML or XML, depending on the return value):

$.get("test.php", function(data){
 alert("Data Loaded: " + data);
});

Example 3

Display test.cgi return value (HTML or XML, depending on Return value), add a set of request parameters:

$.get("test.cgi", { name: "John", time: "2pm" },
 function(data){
 alert("Data Loaded: " + data);
 });

Jquery ajax’s $.get() usage detailed explanation

js file

$(document).ready(function(){
 $("form").submit(function(event) {event.preventDefault()})//取消submit的默认行为
 $("form input[type='submit']").click(function(){
 var url = $('form').attr('action'); // 取Form中要提交的链接
 var param = {}; // 组装发送参数
 param['name'] = $('form input[name=name]').val();
 param['age'] = $('form input[name=age]').val();
 $.get(url, param, function(dom) { $('div.get').append(dom) }) ; // 发送并显示返回内容
 });
})

html file

<form action="ajax.php" method="get">
Name: <input type="text" name="name" />
Age: <input type="text" name="age" />
<input type="submit" />
</form>
<div class="get">这是ajax的get方法</div>

php file

error_reporting(0);
 if($_GET["name"]=="kitty")
{
 $name= "you are the lucky";
}
else
$name=$_GET["name"];
$age=$_GET["age"];
echo "<div> ".$name." ".$age."</div>";

The above introduction is the detailed explanation of the ajax-get() method example in jQuery shared by this article. I hope you like it. .

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