厌倦了闪动的页面？来试试 javascript+WebService 吧！
相信大家也遇到过这样的情况，在B/S的系统中即时的发送短消息，一般的办法是定时的刷新页面，但如果你也像我一样厌倦了不停闪动的页面，不妨来试试javascript+WebService的解决方法。
//deptCode是部门编号，用来检测是否有未读信息
function MoniMsg(deptCode)
{
var deptCode = document.getElementById("DeptCode").value;
var myWebService="http://122.124.6.70/khmis/websvr/KH_Msg.asmx ";
var myMethod="http://tempuri.org/hasNewMsg";
var requestHttp=new ActiveXObject("Microsoft.XMLHTTP");
var s=""; s=s + "<?xml version =\"1.0\" encoding=\"gb2312\"?>\n"
s=s + "<soap:Envelope "
s=s + " xmlns:xsi=\" http://www.w3.org/2001/XMLSchema-instance""
s=s + " xmlns:xsd=\"http://www.w3.org/2001/XMLSchema""
s=s + " xmlns:soap=\"n'http://schemas.xmlsoap.org/soap/envelope/">n"
s=s + " <soap:Body>\n";
//------------写入输入参数-----------------------------------------------
s = s + " <hasNewMsg xmlns=\"n'http://tempuri.org/">n";
s = s + " <deptCode>"+ deptCode +"</deptCode>\n";
s = s + " </hasNewMsg>\n";
//-----------------------------------------------------------------------
s=s + " </soap:Body>\n"
s=s + " </soap:Envelope>"
//这里是重点哟！
requestHttp.Open("POST",myWebService,false);
requestHttp.SetRequestheader("Content-Type","text/xml;Charset=gb2312");
requestHttp.SetRequestheader("SOAPAction", myMethod);
requestHttp.Send(s);
res = requestHttp.ResponseXML;
var pos1 = res.xml.indexOf("<hasNewMsgResult>");
var pos2 = res.xml.indexOf("</hasNewMsgResult>");
var len = pos2 - pos1 - ("<hasNewMsgResult>").length;
var result = res.xml.substr(pos1 + ("<hasNewMsgResult>").length , len);
if (document.getElementById("IsHasHistoryMsg").value == "no")
{
}
else
{
if (result == "true")
{
document.getElementById("msg").innerHTML ="<A href='javascript:ShowNewMsg(deptCode)' style='color:blue;text-decoration:none' > <img src='../Images/mail.gif' border=0 alt='点击查看' style='POSITION: relative; TOP: 5px' id='img1' name='img1'></a>";
}
else
{
document.getElementById("msg").innerHTML ="<A href='javascript:ShowAllMsg(deptCode)' style='color:blue;text-decoration:none'><img src='../Images/mail2.gif' border=0 alt='点击查看历史留言' style='LEFT: 10px; POSITION: relative; TOP:6px'></a>";
}
}
}
//WebService的代码很简单，就是查询数据库返回一个bool值，就不在这里写了，相信大家都能明白。函数在页面里这样使用window.setTimeout("MoniMsg("+deptCode+")",5000);，说完了，要不要赶快试一下？
