如何处理 jQuery AJAX 成功事件?
jqueryweb developmentfront end technology
要处理 jQuery AJAX 成功事件，请使用 ajaxSuccess() 方法。ajaxSuccess(callback) 方法会附加一个函数，该函数会在 AJAX 请求成功完成时执行。这是一个 AJAX 事件。
以下是此方法使用的所有参数的说明
- callback要执行的函数。事件对象、XMLHttpRequest 以及该请求使用的设置将作为参数传递给回调函数。
假设我们在 result.html 中有以下 HTML 内容
<h1>THIS IS RESULT...</h1>
示例
以下示例展示了此方法的用法 −
<html>
<head>
<title>jQuery ajaxSuccess() method</title>
<script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function() {
/* Global variable */
var count = 0;
$("#driver").click(function(event){
$('#stage0').load('result.html');
});
/* Gets called when request starts */
$(document).ajaxStart(function(){
count++;
$("#stage1").html("<h1>Starts, Count :" + count + "</h1>");
});
/* Gets called when request is sent */
$(document).ajaxSend(function(evt, req, set){
count++;
$("#stage2").html("<h1>Sends, Count :" + count + "</h1>");
$("#stage2").append("<h1>URL :" + set.url + "</h1>");
});
/* Gets called when request completes */
$(document).ajaxComplete(function(event,request,settings){
count++;
$("#stage3").html("<h1>Completes,Count:" + count + "</h1>");
});
/* Gets called when request is stopped */
$(document).ajaxStop(function(event,request,settings){
count++;
$("#stage4").html("<h1>Stops, Count :" + count + "</h1>");
});
/* Gets called when all request completes successfully */
$(document).ajaxSuccess(function(event,request,settings){
count++;
$("#stage5").html("<h1>Success,Count :" + count + "</h1>");
});
});
</script>
</head>
<body>
<p>Click on the button to load result.html file:</p>
<div id = "stage0" style = "background-color:blue;">
STAGE - 0
</div>
<div id = "stage1" style = "background-color:blue;">
STAGE - 1
</div>
<div id = "stage2" style = "background-color:blue;">
STAGE - 2
</div>
<div id = "stage3" style = "background-color:blue;">
STAGE - 3
</div>
<div id = "stage4" style = "background-color:blue;">
STAGE - 4
</div>
<div id = "stage5" style = "background-color:blue;">
STAGE - 5
</div>
<input type = "button" id = "driver" value="Load Data" />
</body>
</html>
