我是ajax的新手并且读了一些tuts来创建一个有多个按钮的lil脚本,并且点击每个脚本将在特定的div中加载一个php文件。因为我使用这个
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("1").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","feedchck.php",true);
xmlhttp.send();
}
动作按钮:
<button type="button" onclick="loadXMLDoc();">Request</button>
<div id="1">asdf</div>
我做到了这一部分,点击php文件正在加载完美。但因为它需要时间来处理它显示空白区域。因此可以在处理时显示加载图像或文本,完成后它会隐藏图像并显示文件内容吗? 感谢帮助:} 欢呼声
答案 0 :(得分:3)
<button type="button" onclick="loadXMLDoc();">Request</button>
<!--An empty tag - this be the loading image-->
<span id="loading"></span>
<div id="1">asdf</div>
<script>
function loadXMLDoc() {
var xmlhttp;
if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
else {// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("loading").innerHTML = ''; // Hide the image after the response from the server
document.getElementById("1").innerHTML = xmlhttp.responseText;
}
}
document.getElementById("loading").innerHTML = '<img src="../loading.gif" />'; // Set here the image before sending request
xmlhttp.open("GET", "feedchck.php", true);
xmlhttp.send();
}
</script>