我不想用 jquery $.ajax 调用 asp.net 服务器端代码。所以我写了一个纯 javascript ajax 文件。但是当我调用 webmethod 时，这不起作用。任何人都可以帮我解决这个问题吗？非常感谢你 。
ajax.js：
var ajax = {
_params: null,
_callback: null,
_xhr: null,
_createXHR: function () {
if (window.ActiveXObject) {
_xhr = new ActiveXObject("Microsoft.XMLHTTP"); //IE
}
else if (window.XMLHttpRequest) {
_xhr = new XMLHttpRequest(); //FireFox,Chrome et.
}
},
_ajaxcallback: function () {
if (_xhr.readyState == 4) {
if (_xhr.status == 200) {
_callback.call(this, _xhr.responseText)
}
}
},
_changeParams: function () {
var args = arguments[0];
var s = "";
for (var i in args) {
s += "&" + i + "=" + args[i];
}
_params = s;
},
get: function (url, params, callback) {
_callback = callback;
ajax._createXHR();
ajax._changeParams(params);
if (null != _xhr) {
_xhr.open('get', url + '?' + _params, true);
_xhr.onreadystatechange = ajax._ajaxcallback;
_xhr.send();
}
},
post: function (url, params, callback) {
_callback = callback;
ajax._createXHR();
ajax._changeParams(params);
if (null != _xhr) {
_xhr.open('post', url, true);
_xhr.onreadystatechange = ajax._ajaxcallback;
_xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
_xhr.send(_params);
}
}
}
WebForm1.aspx
<head runat="server">
<title></title>
<script src="ajax.js" type="text/javascript"></script>
<script type="text/javascript">
function ajaxtest() {
var uid = document.getElementById("txtuid").value;
var pwd = document.getElementById("txtpwd").value;
ajax.post("WebForm1.aspx/GetModel", "{ 'uid':" + uid + ", 'pwd':" + pwd + " }", function (data) {
alert(data);
});
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input type="text" id="txtuid" value="eeee" />
<input type="text" value="222" id="txtpwd" onblur="ajaxtest()"/>
WebForm1.cs：
[WebMethod]
public static string GetModel(string uid,string pwd)
{
return "1";
}