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| AJAX之xmlHttp |
| 来源：转载 人气：1388 录入时间：2007-11-8 |
<script type="text/javascript" language="javascript">
<!--
//以XML求取数据
function XmlPost(theEmail)
{
var webFileUrl = "../User/CheckUser.aspx?LogonName=" + theEmail;
var result = "";
if (window.ActiveXObject) {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
else if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
}
//var xmlHttp = new ActiveXObject("MSXML2.XMLHTTP");
xmlHttp.open("POST", webFileUrl, false);
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttp.send("");
xmlHttp.onreadystatechange=function()
{
if (xmlHttp.readyState==4)
{
result = xmlHttp.responseText;
}
}
if(xmlHttp.status!=200)
{
alert ('网络故障(xmlHttp.status='+xmlHttp.status+')，请稍后再试！');
}
result = xmlHttp.responseText;
result = result.substring(0,result.indexOf("?EX"));
if(result != "false")
{
return true;
}
else
{
return false;
}
}
//-->
</script>''' <summary>
''' 检测用户是否存在<文件名：../User/CheckUser.aspx>
''' </summary>
''' <remarks>Created by dzh @2006/06/27 18:22</remarks>
Partial Class Web_User_CheckUser
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Request.QueryString("LogonName") Is Nothing Then
Response.Write("false" + "?EX")
Response.End()
Exit Sub
End If
If (New EasyClick.EasyBusiness.UserBusiness).GetUserByLogonName(Request.QueryString("LogonName").ToString) Is Nothing Then
Response.Write("false" + "?EX")
Response.End()
Exit Sub
Else
Response.Write("true" + "?EX")
Response.End()
Exit Sub
End If
End Sub
End Class
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