我有一个页面执行 AJAX 调用并加载整个页面。加载的页面有一些 Javascript。 javascript 在加载时自行在页面上工作，但是当它被 AJAX 加载时，Javascript 不起作用。我不知道我错过了什么。
加载页面的代码
<html>
<script type="text/javascript">
function showfield(name){
if(name=='lstbox')document.getElementById('div1').style.display="block";
else document.getElementById('div1').style.display="none";
}
function hidefield() {
document.getElementById('div1').style.display='none';
}
</script>
<head>
</head>
<body onload="hidefield()">
<form action = "test2.php" method = "post">
Please enter a name for the App <input type = "text" name = "name">
<table border = "1"><tr><th>Choose a Label</th><th>Choose an element</th></tr>
<tr><td><input type = "text" name = "label1" /></td> <td>
<select name = "elementtype1" id="elementtype1" onchange="showfield(this.options[this.selectedIndex].value)">
<option value = 'select'> Select </option>
<option value='txtbox'>Text Box</option>
<option value='lstbox'>List Box</option>
<option value='chkbox'>Check Box</option>
<option value='radio'>Radio Button</option>
</select></td><td><div id="div1">Enter Listbox options: <input type="text" name="whatever1" /></div></td></tr>
</table>
<input type = "submit" value = "Submit">
</form>
</body>
</html>
加载(AJAX)页面的代码是
<html>
<head>
</head>
<body>
<script src="ajax.js" type="text/javascript"></script>
<script src="responseHTML.js" type="text/javascript"></script>
<div id="storage" style="display:none;">
</div>
<div id="displayed">
<FORM name="ajax" method="POST" action="">
<p>
<INPUT type="BUTTON" value="Get the Panel" ONCLICK="loadWholePage('appcreator.php')">
</p>
</FORM>
</div>
</body>
</html>
ajax.js 代码
function createXHR()
{
var request = false;
try {
request = new ActiveXObject('Msxml2.XMLHTTP');
}
catch (err2) {
try {
request = new ActiveXObject('Microsoft.XMLHTTP');
}
catch (err3) {
try {
request = new XMLHttpRequest();
}
catch (err1)
{
request = false;
}
}
}
return request;
}
responseHTML.js 代码
function getBody(content)
{
test = content.toLowerCase(); // to eliminate case sensitivity
var x = test.indexOf("<body");
if(x == -1) return "";
x = test.indexOf(">", x);
if(x == -1) return "";
var y = test.lastIndexOf("</body>");
if(y == -1) y = test.lastIndexOf("</html>");
if(y == -1) y = content.length; // If no HTML then just grab everything till end
return content.slice(x + 1, y);
}
/**
Loads a HTML page
Put the content of the body tag into the current page.
Arguments:
url of the other HTML page to load
id of the tag that has to hold the content
*/
function loadHTML(url, fun, storage, param)
{
var xhr = createXHR();
xhr.onreadystatechange=function()
{
if(xhr.readyState == 4)
{
//if(xhr.status == 200)
{
storage.innerHTML = getBody(xhr.responseText);
fun(storage, param);
}
}
};
xhr.open("GET", url , true);
xhr.send(null);
}
/**
Callback
Assign directly a tag
*/
function processHTML(temp, target)
{
target.innerHTML = temp.innerHTML;
}
function loadWholePage(url)
{
var y = document.getElementById("storage");
var x = document.getElementById("displayed");
loadHTML(url, processHTML, x, y);
}
/**
Create responseHTML
for acces by DOM's methods
*/
function processByDOM(responseHTML, target)
{
target.innerHTML = "Extracted by id:<br />";
// does not work with Chrome/Safari
//var message = responseHTML.getElementsByTagName("div").namedItem("two").innerHTML;
var message = responseHTML.getElementsByTagName("div").item(1).innerHTML;
target.innerHTML += message;
target.innerHTML += "<br />Extracted by name:<br />";
message = responseHTML.getElementsByTagName("form").item(0);
target.innerHTML += message.dyn.value;
}
function accessByDOM(url)
{
//var responseHTML = document.createElement("body"); // Bad for opera
var responseHTML = document.getElementById("storage");
var y = document.getElementById("displayed");
loadHTML(url, processByDOM, responseHTML, y);
}
最佳答案
通过 AJAX 加载到 HTML 中的 Javascript 将不会被执行。
如果要动态包含脚本，请附加 <script>标记到现有加载页面的 <head>元素。
关于Javascript 在 AJAX 调用时不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/5626571/