JS插件plupload.js实现多图上传并显示进度条

来源：乐娱网

本文实例为大家分享了plupload.js多图上传的具体代码，供大家参考，具体内容如下

HTML代码：

<!DOCTYPE html>
 
<head>
<meta charset="utf-8" />
<meta name="viewport" content="initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no">
<title>多图上传</title>
<script type="text/javascript" src="jquery.min.js"></script>
<script type="text/javascript" src="plupload.full.min.js"></script>
</head>
<body>
<style type="text/css">
*{ margin:0px; padding:0px; font-family:Microsoft Yahei; box-sizing:border-box; -webkit-box-sizing:border-box;}
.demo{max-width:0px; margin:0 auto; min-width:320px;}
.ul_pics{ float:left;}
.ul_pics li{float:left; margin:0px; padding:0px; margin-left:5px; margin-top:5px; position:relative; list-style-type:none; border:1px solid #eee; width:80px; height:80px;}
.ul_pics li img{width:80px;height:80px;}
.ul_pics li i{ position:absolute; top:0px; right:-1px; background:red; cursor:pointer; font-style:normal; font-size:10px; width:14px; height:14px; text-align:center; line-height:12px; color:#fff;}
.progress{position:relative; margin-top:30px; background:#eee;} 
.bar {background-color: green; display:block; width:0%; height:15px; } 
.percent{position:absolute; height:15px; top:-18px; text-align:center; display:inline-block; left:0px; width:80px; color:#666; line-height:15px; font-size:12px; } 
.demo #btn{ width:80px; height:80px; margin-left:5px; margin-top:5px; border:1px dotted #c2c2c2; background:url(up.png) no-repeat center; background-size:30px auto; text-align:center; line-height:120px; font-size:30px; color:#666; float:left;}
</style>
<div class="demo">
 <a href="javascript:void(0)" id="btn"></a>
 <ul id="ul_pics" class="ul_pics clearfix">
 </ul> 
</div>
<script type="text/javascript">
var uploader = new plupload.Uploader({ //创建实例的构造方法
 runtimes: 'html5,flash,silverlight,html4', //上传插件初始化选用那种方式的优先级顺序
 browse_button: 'btn', // 上传按钮
 url: "upimgs.php?get=upimg", //远程上传地址
 flash_swf_url: 'plupload/Moxie.swf', //flash文件地址
 silverlight_xap_url: 'plupload/Moxie.xap', //silverlight文件地址
 filters: {
 max_file_size: '10mb', //最大上传文件大小（格式100b, 10kb, 10mb, 1gb）
 mime_types: [ //允许文件上传类型
 {title: "files", extensions: "jpg,png,gif"}
 ]
 },
 multipart_params:{ }, //文件上传附加参数
 file_data_name:"upimg", //文件上传的名称
 multi_selection: false, //true:ctrl多文件上传, false 单文件上传
 init: {
 FilesAdded: function(up, files) { //文件上传前
 if ($("#ul_pics").children("li").length > 5) {
 alert("您上传的图片太多了！");
 uploader.destroy();
 } else {
 var li = '';
 plupload.each(files, function(file) { //遍历文件
 li += "<li id='" + file['id'] + "'><div class='progress'><span class='bar'></span><span class='percent'>上传中 0%</span></div></li>";
 });
 $("#ul_pics").append(li);
 uploader.start();
 }
 },
 UploadProgress: function(up, file) { //上传中，显示进度条
 var percent = file.percent;
 $("#" + file.id).find('.bar').css({"width": percent + "%"});
 $("#" + file.id).find(".percent").text("上传中 "+percent + "%");
 },
 FileUploaded: function(up, file, info) { //文件上传成功的时候触发
 var data = eval("(" + info.response + ")");
 $("#" + file.id).html("<img src='" + this.url + "'/><i onclick='delimg(this)'>x</i><input type='hidden' name='' value='"+ this.url +"'>");
 },
 Error: function(up, err) { //上传出错的时候触发
 alert("error");
 }
 }
});
uploader.init();
 
function delimg(o){
 var src = $(o).prev().attr("src"); 
 $.post("upimgs.php?get=delimg&imgurl="+src,function(data){ 
 if(data==1){
 $(o).parent().remove();
 }
 }) 
}
</script>
</body>
</html>

PHP 代码：

<?php
 
$typeArr = array("jpg", "png", "gif");//允许上传文件格式 
$path = "files/";//上传路径 
 if (isset($_POST)) { 
 if($_GET['get']=="upimg"){
 $name = $_FILES['file']['name']; 
 $size = $_FILES['file']['size']; 
 $name_tmp = $_FILES['file']['tmp_name']; 
 if (empty($name)) { 
 echo json_encode(array("error"=>"您还未选择图片")); 
 exit; 
 } 
 $type = strtolower(substr(strrchr($name, '.'), 1)); //获取文件类型 
 
 if (!in_array($type, $typeArr)) { 
 echo json_encode(array("error"=>"清上传jpg,png或gif类型的图片！")); 
 exit; 
 } 
 if ($size > (1024 * 1024 * 10)) { 
 echo json_encode(array("error"=>"图片大小已超过10MB！")); 
 exit; 
 } 
 
 $pic_name = time() . rand(10000, 99999) . "." . $type;//图片名称 
 $pic_url = $path . $pic_name;//上传后图片路径+名称 
 if (move_uploaded_file($name_tmp, $pic_url)) { //临时文件转移到目标文件夹 
 echo json_encode(array("error"=>"0","pic"=>$pic_url,"name"=>$pic_name)); 
 } else { 
 echo json_encode(array("error"=>"上传有误，清检查服务器配置！")); 
 } 
 }
 if($_GET['get']=="delimg"){
 $imgsrc = $_GET['imgurl'];
 unlink($imgsrc);
 echo 1;
 }
}