独角兽企业重金招聘Python工程师标准>>>
jQuery+php+ajax实现无刷新上传文件功能，还带有上传进度条动画效果，支持图片、视频等大文件上传。
js代码：
<script type='text/javascript' src='js/jquery-2.0.3.min.js'></script> <script type='text/javascript' src='js/jquery.form.js'></script> <script type="text/javascript"> function filesize(ele) { var filesize = (ele.files[0].size / 1024/1024).toFixed(2); $('#big').html(filesize+"MB"); $('#text').html(ele.files[0].name); } $(document).ready(function(e) { var progress = $(".progress"); var progress_bar = $(".progress-bar"); var percent = $('.percent'); $("#del").click(function(){ var objFile=document.getElementsByTagName('input')[2]; objFile.value=""; $("#list").hide(); }); $("#uploadphoto").change(function(){ $("#list").show(); }); $("#ups").click(function(){ var file = $("#uploadphoto").val(); if(file!=""){ $('#uped').html("上传中……"); $("#myupload").ajaxSubmit({ dataType: 'json', //数据格式为json beforeSend: function() { //开始上传 var percentVal = '0%'; progress_bar.width(percentVal); percent.html(percentVal); }, uploadProgress: function(event, position, total, percentComplete) { var percentVal = percentComplete + '%'; //获得进度 progress_bar.width(percentVal); //上传进度条宽度变宽 percent.html(percentVal); //显示上传进度百分比 }, success: function(data) { if(data.status == 1){ var src = data.url; $('#uped').html("上传成功"); //var attstr= '<img src="'+src+'">'; //$(".imglist").append(attstr); //$(".res").html("上传图片"+data.name+"成功，图片大小："+data.size+"K,文件地址："+data.url); }else{ $(".res").html(data.content); }}, error:function(xhr){ //上传失败 alert("上传失败"); }}); } else{ alert("请选择视频文件"); } }); }); </script>
upload.php源代码：
<?php $picname = $_FILES['uploadfile']['name']; $picsize = $_FILES['uploadfile']['size']; if ($picname != "") { if ($picsize > 00000) { //限制上传大小 echo '{"status":0,"content":"图片大小不能超过2M"}'; exit; } $type = strstr($picname, '.'); //限制上传格式 if ($type != ".gif" && $type != ".jpg" && $type != "png" && $type != ".mp4"&& $type != ".rar") { echo '{"status":2,"content":"文件格式不对！"}'; exit; } $rand = rand(100, 999); $pics = uniqid() . $type; //命名图片名称 //上传路径 $pic_path = "images/". $pics; move_uploaded_file($_FILES['uploadfile']['tmp_name'], $pic_path); $myfile = fopen("1/".date("His")."testfile.txt", "w"); } $size = round($picsize/1024,2); //转换成kb echo '{"status":1,"name":"'.$picname.'","url":"'.$pic_path.'","size":"'.$size.'","content":"上传成功"}';?>
如果觉得《jQuery+php+ajax实现无刷新上传文件功能》对你有帮助，请点赞、收藏，并留下你的观点哦！
