input标签file类型，选择多个文件进行上传

来源：互联网发布：现代诗的欣赏知乎编辑：程序博客网时间：2024/05/21 06:19

html页面

<!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

<?phpprint_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));}?>

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