html页面
[html] view plain copy <!DOCTYPE html> <html> <head> <meta charset="UTF-8"/> <title>xhr2</title> </head> <body> <div style="text-align:center;margin:100px"> <input type="file" id="file" name="file" multiple="multiple"><progress id="uploadprogress" min="0" max="100" value="0">0</progress> <button onclick="xhr2()">多文件上传</button> </div> <script> function xhr2(){ var xhr = new XMLHttpRequest();//第一步 //定义表单变量 var file = document.getElementById('file').files; //console.log(file.length); //新建一个FormData对象 var formData = new FormData(); //++++++++++ //追加文件数据 for(i=0;i<file.length;i++){ formData.append("file["+i+"]", file[i]); //++++++++++ } //formData.append("file", file[0]); //++++++++++ //post方式 xhr.open('POST', 'xhr2.php'); //第二步骤 xhr.upload.onprogress = function (event) { if (event.lengthComputable) { var complete = (event.loaded / event.total * 100 | 0); var progress = document.getElementById('uploadprogress'); progress.value = progress.innerHTML = complete; } }; //发送请求 xhr.send(formData); //第三步骤 //ajax返回 xhr.onreadystatechange = function(){ //第四步 if ( xhr.readyState == 4 && xhr.status == 200 ) { console.log( xhr.responseText ); } }; //设置超时时间 xhr.timeout = 100000; xhr.ontimeout = function(event){ alert('请求超时！'); } } </script> </body> </html> php处理页面 [php] view plain copy <?php print_r($_FILES["file"]); for($i=0;$i<count($_FILES["file"]['name']);$i++){ $name=$_FILES["file"]["name"][$i]; move_uploaded_file($_FILES["file"]["tmp_name"][$i],iconv("UTF-8","gb2312",$name)); }