?? sample8_1.htm
字號:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>無標題文檔</title>
<script language="javascript">
var http_request = false;
function send_request(url) {//初始化、指定處理函數、發(fā)送請求的函數
http_request = false;
//開始初始化XMLHttpRequest對象
if(window.XMLHttpRequest) { //Mozilla 瀏覽器
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType) {//設置MiME類別
http_request.overrideMimeType('text/xml');
}
}
else if (window.ActiveXObject) { // IE瀏覽器
try {
http_request = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
http_request = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e) {}
}
}
if (!http_request) { // 異常，創(chuàng)建對象實例失敗
window.alert("不能創(chuàng)建XMLHttpRequest對象實例.");
return false;
}
http_request.onreadystatechange = processRequest;
// 確定發(fā)送請求的方式和URL以及是否同步執(zhí)行下段代碼
http_request.open("GET", url, true);
http_request.send(null);
}
// 處理返回信息的函數
function processRequest() {
if (http_request.readyState == 4) { // 判斷對象狀態(tài)
if (http_request.status == 200) { // 信息已經成功返回，開始處理信息
var returnObj = http_request.responseXML;
var xmlobj = http_request.responseXML;
var employees = xmlobj.getElementsByTagName("employee");
var feedbackStr = "";
for(var i=0;i<employees.length;i++) { // 循環(huán)讀取employees.xml的內容
var employee = employees[i];
feedbackStr += "員工：" + employee.getAttribute("name");
feedbackStr += " 職位：" + employee.getElementsByTagName("job")[0].firstChild.data;
feedbackStr += " 工資：" + employee.getElementsByTagName("salary")[0].firstChild.data;
feedbackStr += "\r\n";
}
alert(feedbackStr);
} else { //頁面不正常
alert("您所請求的頁面有異常。");
}
}
}
</script>
</head>
<body>
<input type="button" name="read" value="讀取XML" onClick="send_request('employees.xml')">
</body>
</html>
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