http://fantasy.iteye.com/blog/67320

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用ajax：ajax发个异步请求的时候 调用一个div显示 数据正在加载中 ……”，

接收到请求的时候 关闭div就可以了

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在要加载jsp页面的html代码

下添加如下：

然后触发提交按钮事件的时候：sending.style.visibility= "visible "

OK!

如果需要等待的时间比较长，你可以把页面上的按钮在提交之后将按钮设置为buttonName.disabled=true，这样可以防止用户等不耐烦而再按。

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a{ color:#000; font-size:12px;text-decoration:none}

a:hover{ color:#900; text-decoration:underline}

#massage_box{ position:absolute; left:expression((body.clientWidth-40)/2); top:expression((body.clientHeight-40)/2); width:40px; height:40px;filter:dropshadow(color=#666666,offx=3,offy=3,positive=2); z-index:2; visibility:hidden}

#mask{ position:absolute; top:0; left:0; bottom:0;width:expression(body.scrollWidth); height:100%; background:#666; filter:ALPHA(opacity=60); z-index:1; visibility:hidden}

.massage{border:#036 solid; border-width:1 1 3 1; width:95%; height:95%; background:#fff; color:#036; font-size:12px; line-height:150%}

.header{background:#036; height:10%; font-family:Verdana, Arial, Helvetica, sans-serif; font-size:12px; padding:3 5 0 5; color:#fff}

function createXMLHttpRequest()

{

if(window.ActiveXObject)

{

xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

}

else

{

if(window.XMLHttpRequest)

{

xmlHttp = new XMLHttpRequest();

}

}

}

function LoadPageWait()

{

createXMLHttpRequest();

// var url = "http://extjs.com/deploy/ext-1.1/docs/";

var url = "http://www.163.com/";

// var url = "test.html";

xmlHttp.open("GET", url, true);

xmlHttp.onreadystatechange = goCallback;

xmlHttp.send(null);

}

function goCallback()

{

if(xmlHttp.readyState == 1)

{

// document.getElementById("Label1").innerHTML = "数据读取中.";

mask.style.visibility='visible';

massage_box.style.visibility='visible';

}

if(xmlHttp.readyState == 2)

{

// document.getElementById("Label1").innerHTML = "数据初始化.";

mask.style.visibility='visible';

massage_box.style.visibility='visible';

}

if(xmlHttp.readyState == 3)

{

// document.getElementById("Label1").innerHTML = "数据载入中.";

mask.style.visibility='visible';

massage_box.style.visibility='visible';

}

if(xmlHttp.readyState == 4)

{

// document.getElementById("Label1").innerHTML = "页面加载中.";

mask.style.visibility='visible';

massage_box.style.visibility='visible';

setTimeout("WriteData()", 1);

}

}

function WriteData()

{

window.location.replace("http://www.163.com/");

//window.location.replace("1.html");

return false;

}