js自动下载文件到本地的实现代码_javascript技巧

}
}else if(window.XMLHttpRequest)
{
ajax = new XMLHttpRequest();
}

return ajax;
}
//js自动下载文件到本地
var xh;
function getXML(geturl) {
alert(geturl);
xh = InitAjax();
xh.onreadystatechange = getReady;
xh.open("GET", geturl, true);
xh.send();
}

function getReady() {

//alert(xh.readyState);
if (xh.readyState == 4) {
alert(xh.status);
if (xh.status == 200) {
saveFile("d:\dd.gif");
return true;
}
else
{ return false; }
}
else
return false;
}

function saveFile(tofile) {
alert(tofile);
var objStream;
var imgs;
imgs = xh.responseBody;
objStream = new ActiveXObject("ADODB.Stream");
objStream.Type = 1;
objStream.open();
objStream.write(imgs);
objStream.SaveToFile(tofile)
}
//getXML("http://10.76.3.116/2.bmp");
//js自动下载文件到本地结束