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#2
fququ2007-01-15 18:55
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代码如下是ajax 基础编程里的例子,都跑不起来.
//simpleResponse.xml文件
Hello from the server!
//就以上一行文字在这个文件里.
//以下是simpleResponse.html文件,两个文件在同一个目录中,为执行的就是这个文件,为什么readyState取不到4,书上的所有例子都这样.是不是我配置有问题?请教了.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Simple XMLHttpRequest</title>
<script type="text/javascript">
var xmlHttp;
function createXMLHttpRequest() {
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
}
function startRequest() {
createXMLHttpRequest();
xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.open("GET", "simpleResponse.xml", true);
xmlHttp.send(null);
}
function handleStateChange() {
if(xmlHttp.readyState == 4) {
if(xmlHttp.status == 200) {
alert("The server replied with: " + xmlHttp.responseText);
}
}
}
</script>
</head>
<body>
<form action="#">
<input type="button" value="Start Basic Asynchronous Request" onclick="startRequest();"/>
</form>
</body>
</html>