//定义XMLHttp实例
var xmlHttp;
function createXMLHttpRequest(){
//开始初始化XMLHttpRequest对象
if(window.ActiveXObject){
//IE浏览器
xmlHttp = new ActiveXObject(\"Microsoft.XMLHTTP\");
}else if(window.XMLHttpRequest){
//Mozilla浏览器
xmlHttp = new XMLHttpRequest();
}
if(xmlHttp){
//设置请求地址
xmlHttp.open(\"GET\",\"message.do?cmd=get\",true);
xmlHttp.onreadystatechange=setState;//设置回调函数
xmlHttp.send(null);
}
}
//回调函数
function setState(){
if(xmlHttp.readyState == 4){
if(xmlHttp.status == 200){
parseResults(xmlHttp.responseXML)
}
}
}
/*处理XML*/
function parseResults(xmlDOM) {
try{
var root = xmlDOM.documentElement;
var info = root.getElementsByTagName('message');
var out = \"\";
var message = null;
var current = null;
for(var i=0;i<info.length;i++){
message = info[i];
id = message.getElementsByTagName(\"id\")[0].firstChild.data;
title = message.getElementsByTagName(\"title\")[0].firstChild.data;
out=out+(i+1)+\".\"+\"<a style=\\"font-size:12px; color: #6D93C8; face: Tahoma\\" title='内容提要：\n\"
+title
+\"\n时间：\"
+title
+\"'\"+\" href=# >\"
+title
+\"</a><BR>\";
}
popmsg(\"<BR>\"+out);
}catch(exception){
// alert(\"出错了！\");
}
}/*右下角提示框*/
var oPopup = window.createPopup();
var popTop=50;
function popshow(){
oPopup.show(screen.width-250,screen.height-popTop,241,172);
}
function pophide(){
oPopup.hide();
}
function popmsg(msgstr){var winstr=\"<table valign=\\"top\\" style=\\"border: 1 solid #6D93C8\\" width=\\"241\\" height=\\"172\\" border=\\"0\\" cellpadding=\\"0\\" cellspacing=\\"0\\" >\";
winstr+=\"<tr><td bgcolor=\\"#BCCCDF\\" onClick=\\"parent.pophide();\\" valign=\\"top\\" align=\\"center\\" height=\\"20\\" style=\\"font-size:14px; color: #6D93C8; face: Tahoma;filter:Blur(add=1,direction=45,strength=8) \\">你有新短消息：</td></tr><tr><td valign=\\"top\\" align=\\"center\\"><table valign=\\"top\\" width=\\"90%\\" height=\\"110\\" border=\\"0\\" cellpadding=\\"0\\" cellspacing=\\"0\\">\";
winstr+=\"<tr><td valign=\\"top\\" style=\\"font-size:12px; color: #6D93C8; face: Tahoma\\">\"+msgstr+\"</td></tr></table></td></tr></table>\";
oPopup.document.body.innerHTML = winstr;
popshow();
setInterval('window.focus()',0); //让IE重获取焦点
}/*提示间隔时间*/
var secs=5;//第一次提示时间秒
function checkServer(secs){
for(i=1;i<=secs;i++) {
window.setTimeout(\"update(\" + i + \")\", i * 1000);
}
}
function update(num) {
if(num == secs) {
createXMLHttpRequest();
secs=1*60;//提示时间秒
for(i=1;i<=secs;i++) {
window.setTimeout(\"update(\" + i + \")\", i * 1000);
}
}
else {
printnr = secs-num;
}
}
checkServer(secs);
请求的XML内容
<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<messages>
<message>
<id>001</id>
<title>通知你今天来开会</title>
</message>
</messages>
如果XML要动态生成则用下面代码
<%@ page import=\"java.util.List,com.sunflower.model.Message\" contentType=\"text/xml;charset=utf-8\"%>
<%
response.setContentType(\"text/xml\");
response.setHeader(\"Cache-Control\", \"no-cache\");
List list = (List)request.getAttribute(\"messages\");
out.println(\"<messages>\");
if(list!=null)
for(int i=0;i<list.size();i++){
Message objM = (Message)list.get(i);
out.println(\"<message>\");
out.println(\"<id>\"+objM.getId()+\"</id>\");
out.println(\"<title>\"+objM.getTitle()+\"</title>\");
out.println(\"</message>\");
}
out.println(\"</messages>\");
%>
