<html>
<input type="text" id = "url" >
<input type="button" value="转换">
<script type="text/javascript" src="https://cdn.jsdelivr.net/npm/js-base64@3.6.0/base64.min.js"></script>
<script type="text/javascript">
var btn = document.querySelector('[type=button]');
<!--
btn.onclick = function () {
var previewUrl = document.getElementById("url").value+'&fullfilename=2222.xls'
window.open('http://localhost:8012/onlinePreview?url='+encodeURIComponent(Base64.encode(previewUrl)))
}
</script>
</html>
