var xmlobj;  //定义XMLHttpRequest对象  

function CreateXMLHttpRequest()  

{  

if(window.ActiveXObject)  

                       //如果当前浏览器支持Active Xobject，则创建ActiveXObject对象  

{  

         //xmlobj = new ActiveXObject("Microsoft.XMLHTTP");

   try {

           xmlobj = new ActiveXObject("Msxml2.XMLHTTP");

            } catch (e) {

          try {

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

               } catch (E) {

                   xmlobj = false;

                     }

               }  

             }  

else if(window.XMLHttpRequest)  

                    //如果当前浏览器支持XMLHttp Request，则创建XMLHttpRequest对象  

{  

         xmlobj = new XMLHttpRequest();

}  

}  

function SubmitArticle(act,cityname,antique)                        //主程序函数  

{  

    CreateXMLHttpRequest();                     //创建对象

    //var parm = "act=firstweather" ;//构造URL参数

 //antique = escape(antique);

 var parm = "act=" + act + "&cityname=" + cityname + "&antique=" + antique;//构造URL参数

    //xmlobj.open("POST", "{dede:global.cfg_templeturl/}/../include/weather.php", true);  //调用weather.php

 xmlobj.open("POST", "/weather/include/weather.php", true);  //调用weather.php

 xmlobj.setRequestHeader("cache-control","no-cache");

 xmlobj.setRequestHeader("contentType","text/html;charset=uft-8") //指定发送的编码

    xmlobj.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");   //设置请求头信息  

    xmlobj.onreadystatechange = StatHandler;    //判断URL调用的状态值并处理  

    xmlobj.send(parm); //设置为发送给服务器数据  

}  

function post(URL, PARAMS) {

    var temp = document.createElement("form");

    temp.action = URL;

    temp.method = "post";

    temp.style.display = "none";

    for (var x in PARAMS) {

        var opt = document.createElement("textarea");

        opt.name = x;

        opt.value = PARAMS[x];

        // alert(opt.name)

        temp.appendChild(opt);

    }

    document.body.appendChild(temp);

    temp.submit();

    return temp;

}        

调用方法 如

post('pages/statisticsJsp/excel.action', {html :prnhtml,cm1:'sdsddsd',cm2:'haha'});