下面小编就为大家带来一篇原生javascript实现文件异步上传的实例讲解。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧 效果图: 代码:(demo33.jsp) <%@ page contentType="text/html;charset=UTF-8" language="java" %> demo33.jsp 名称 文件 确定 function ajaxUploadFile() { var formData = new FormData(); var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp = new XMLHttpRequest(); }else {// code for IE6, IE5 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.open("POST","/data",true); xmlhttp.setRequestHeader("X-Requested-With", "XMLHttpRequest"); formData.append("name",document.getElementById("text").value); formData.append("file",document.getElementById("file").files[0]); xmlhttp.send(formData); xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4) { if (xmlhttp.status==200) { console.log("上传成功"+xmlhttp.responseText); }else { console.log("上传失败"+xmlhttp.responseText); } } } } 登录后复制