火狐3.5以上
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>孟宪会之AJAX跨域请求测试</title>
</head>
<body>
<input type='button' value='开始测试' onclick='crossDomainRequest()' />
<div ></div>
<script type="text/javascript">
//<![CDATA[
var xhr = new XMLHttpRequest();
var url = 'http://192.168.0.94:8080/now.php';
function crossDomainRequest() {
document.getElementById("content").innerHTML = "开始……";
if (xhr) {
xhr.open('GET', url, true);
xhr.onreadystatechange = handler;
xhr.send();
} else {
document.getElementById("content").innerHTML = "不能创建 XMLHttpRequest";
}
}
function handler(evtXHR) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
var response = xhr.responseText;
document.getElementById("content").innerHTML = "结果：" + response;
} else {
document.getElementById("content").innerHTML = "不允许跨域请求。";
}
}
else {
document.getElementById("content").innerHTML += "<br/>执行状态 readyState：" + xhr.readyState;
}
}
//]]>
</script>
</body>
</html>
下面是IE8上以的
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>孟宪会之AJAX跨域请求测试</title>
</head>
<body>
<input type='button' value='开始测试' onclick='crossDomainRequest()' />
<div + xhr.responseText;
}
</script>
</body>
</html>