替换上传文件的js插件

This commit is contained in:
季圣华
2020-04-12 23:41:56 +08:00
parent f0b49c21c8
commit 38e7cb6087
12 changed files with 348 additions and 1058 deletions

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@charset "utf-8";
/* CSS Document */
.uploadify-button{
float: left;
display:inline-block;
border:1px solid #808080;
background-color: #707070;
line-height:24px;
border-radius:12px;
padding:0 18px;
font-size:12px;
font-weight: 600;
font-family: '微软雅黑';
color:#FFF;
cursor:pointer;
text-decoration:none;
}
.uploadify-button:hover{
background-color: #888;
}
.uploadfile{
width:0;
}
.uploadify-queue .uploadify-queue-item{
list-style-type:none;
}
.uploadbtn,.delfilebtn,.showfilebtn{
display:inline-block;
border:1px solid #999;
line-height:24px;
border-radius:4px;
padding:0 18px;
font-size:12px;
color:#666;
cursor:pointer;
background:url(images/btnbg.png) repeat-x 0 0;
text-decoration:none;
}
.up_filename,.progressnum,.delfilebtn,.uploadbtn,.up_percent{
font-size:12px;
color:#666;
margin-left:10px;
}
.showfilebtn{
font-size:12px;
color: blue;
margin-left:10px;
border: 1px blue solid;
}
.uploadify-progress{
display:inline-block;
width:200px;
height:10px;
background-color:white;
border-radius:20px;
border:2px groove #666;
vertical-align:middle;
padding:0;
margin-left: 10px;
}
.uploadify-progress-bar{
width:0;
height:100%;
border-radius:20px;
background-color: #0099FF;
}

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(function($){
$.fn.Huploadify = function(opts){
var itemTemp = '<div id="${fileID}" class="uploadify-queue-item"><div class="uploadify-progress"><div class="uploadify-progress-bar"></div></div><span class="up_filename">${fileName}</span><span class="uploadbtn">上传</span><span class="delfilebtn">删除</span></div>';
var defaults = {
fileTypeExts:'',//允许上传的文件类型,格式'*.jpg;*.doc'
uploader:'',//文件提交的地址
auto:false,//是否开启自动上传
method:'post',//发送请求的方式get或post
multi:false,//是否允许选择多个文件
maxFileNumber:10, //最多能上传的文件数量
formData:null,//发送给服务端的参数,格式:{key1:value1,key2:value2}
fileObj:'jarFile',//在后端接受文件的参数:文件
fileObjName:'fileName',//在后端接受文件的参数:文件名称
fileSizeLimit:2048,//允许上传的文件大小单位KB
showUploadedPercent:true,//是否实时显示上传的百分比如20%
showUploadedSize:false,//是否实时显示已上传的文件大小如1M/2M
buttonText:'选择文件',//上传按钮上的文字
removeTimeout: 1000,//上传完成后进度条的消失时间
itemTemplate:itemTemp,//上传队列显示的模板
onUploadStart:null,//上传开始时的动作
onUploadSuccess:null,//上传成功的动作
onUploadComplete:null,//上传完成的动作
onUploadError:null, //上传失败的动作
onInit:null,//初始化时的动作
onCancel:null//删除掉某个文件后的回调函数可传入参数file
}
var option = $.extend(defaults,opts);
//将文件的单位由bytes转换为KB或MB若第二个参数指定为true则永远转换为KB
var formatFileSize = function(size,byKB){
if (size> 1024 * 1024&&!byKB){
size = (Math.round(size * 100 / (1024 * 1024)) / 100).toString() + 'MB';
}
else{
size = (Math.round(size * 100 / 1024) / 100).toString() + 'KB';
}
return size;
}
//根据文件序号获取文件
var getFile = function(index,files){
for(var i=0;i<files.length;i++){
if(files[i].index == index){
return files[i];
}
}
return false;
}
//将输入的文件类型字符串转化为数组,原格式为*.jpg;*.png
var getFileTypes = function(str){
var result = [];
var arr1 = str.split(";");
for(var i=0,len=arr1.length;i<len;i++){
result.push(arr1[i].split(".").pop());
}
return result;
}
this.each(function(){
var _this = $(this);
//先添加上file按钮和上传列表
var instanceNumber = $('.uploadify').length+1;
var inputStr = '<input id="select_btn_'+instanceNumber+'" class="selectbtn" style="display:none;" type="file" name="fileselect[]"';
inputStr += option.multi ? ' multiple' : '';
inputStr += ' accept="';
inputStr += getFileTypes(option.fileTypeExts).join(",");
inputStr += '"/>';
inputStr += '<a id="file_upload_'+instanceNumber+'-button" href="javascript:void(0)" class="uploadify-button">';
inputStr += option.buttonText;
inputStr += '</a>';
var uploadFileListStr = '<div id="file_upload_'+instanceNumber+'-queue" class="uploadify-queue"></div>';
_this.append(inputStr+uploadFileListStr);
//创建文件对象
var fileObj = {
fileInput: _this.find('.selectbtn'), //html file控件
uploadFileList : _this.find('.uploadify-queue'),
url: option.uploader, //ajax地址
fileFilter: [], //过滤后的文件数组
filter: function(files) { //选择文件组的过滤方法
var arr = [];
if(this.uploadFileList.find('.uploadify-queue-item:visible').length>=option.maxFileNumber) {
alert('只能上传' + option.maxFileNumber + '个文件!');
} else {
var typeArray = getFileTypes(option.fileTypeExts);
if(typeArray.length>0){
for(var i=0,len=files.length;i<len;i++){
var thisFile = files[i];
if(parseInt(formatFileSize(thisFile.size,true))>option.fileSizeLimit){
alert('文件'+thisFile.name+'大小超出限制!');
continue;
}
if($.inArray(thisFile.name.split('.').pop(),typeArray)>=0){
arr.push(thisFile);
}
else{
alert('文件'+thisFile.name+'类型不允许!');
}
}
}
}
return arr;
},
//文件选择后
onSelect: function(files){
for(var i=0,len=files.length;i<len;i++){
var file = files[i];
//处理模板中使用的变量
var $html = $(option.itemTemplate.replace(/\${fileID}/g,'fileupload_'+instanceNumber+'_'+file.index).replace(/\${fileName}/g,file.name).replace(/\${fileSize}/g,formatFileSize(file.size)).replace(/\${instanceID}/g,_this.attr('id')));
//如果是自动上传,去掉上传按钮
if(option.auto){
$html.find('.uploadbtn').remove();
}
this.uploadFileList.append($html);
//判断是否显示已上传文件大小
if(option.showUploadedSize){
var num = '<span class="progressnum"><span class="uploadedsize">0KB</span>/<span class="totalsize">${fileSize}</span></span>'.replace(/\${fileSize}/g,formatFileSize(file.size));
$html.find('.uploadify-progress').after(num);
}
//判断是否显示上传百分比
if(option.showUploadedPercent){
var percentText = '<span class="up_percent">0%</span>';
$html.find('.uploadify-progress').after(percentText);
}
//判断是否是自动上传
if(option.auto){
this.funUploadFile(file);
}
else{
//如果配置非自动上传,绑定上传事件
$html.find('.uploadbtn').on('click',(function(file){
return function(){fileObj.funUploadFile(file);}
})(file));
}
//为删除文件按钮绑定删除文件事件
$html.find('.delfilebtn').on('click',(function(file){
return function(){fileObj.funDeleteFile(file.index);}
})(file));
}
},
onProgress: function(file, loaded, total) {
var eleProgress = _this.find('#fileupload_'+instanceNumber+'_'+file.index+' .uploadify-progress');
var percent = (loaded / total * 100).toFixed(2) +'%';
if(option.showUploadedSize){
eleProgress.nextAll('.progressnum .uploadedsize').text(formatFileSize(loaded));
eleProgress.nextAll('.progressnum .totalsize').text(formatFileSize(total));
}
if(option.showUploadedPercent){
eleProgress.nextAll('.up_percent').text(percent);
}
eleProgress.children('.uploadify-progress-bar').css('width',percent);
}, //文件上传进度
/* 开发参数和内置方法分界线 */
//获取选择文件file控件
funGetFiles: function(e) {
// 获取文件列表对象
var files = e.target.files;
//继续添加文件
files = this.filter(files);
for(var i=0,len=files.length;i<len;i++){
this.fileFilter.push(files[i]);
}
this.funDealFiles(files);
return this;
},
//选中文件的处理与回调
funDealFiles: function(files) {
var fileCount = _this.find('.uploadify-queue .uploadify-queue-item').length;//队列中已经有的文件个数
for(var i=0,len=files.length;i<len;i++){
files[i].index = ++fileCount;
files[i].id = files[i].index;
}
//执行选择回调
this.onSelect(files);
return this;
},
//删除对应的文件
funDeleteFile: function(index) {
for (var i = 0,len=this.fileFilter.length; i<len; i++) {
var file = this.fileFilter[i];
if (file.index == index) {
this.fileFilter.splice(i,1);
_this.find('#fileupload_'+instanceNumber+'_'+index).fadeOut();
option.onCancel&&option.onCancel(file);
break;
}
}
return this;
},
//文件上传
funUploadFile: function(file) {
var xhr = false;
try{
xhr=new XMLHttpRequest();//尝试创建 XMLHttpRequest 对象,除 IE 外的浏览器都支持这个方法。
}catch(e){
xhr=ActiveXobject("Msxml12.XMLHTTP");//使用较新版本的 IE 创建 IE 兼容的对象Msxml2.XMLHTTP
}
if (xhr.upload) {
// 上传中
xhr.upload.addEventListener("progress", function(e) {
fileObj.onProgress(file, e.loaded, e.total);
}, false);
// 文件上传成功或是失败
xhr.onreadystatechange = function(e) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
//校正进度条和上传比例的误差
var thisfile = _this.find('#fileupload_'+instanceNumber+'_'+file.index);
thisfile.find('.uploadify-progress-bar').css('width','100%');
option.showUploadedSize&&thisfile.find('.uploadedsize').text(thisfile.find('.totalsize').text());
option.showUploadedPercent&&thisfile.find('.up_percent').text('100%');
option.onUploadSuccess&&option.onUploadSuccess(file, xhr.responseText);
//在指定的间隔时间后删掉进度条
setTimeout(function(){
_this.find('#fileupload_'+instanceNumber+'_'+file.index).fadeOut();
},option.removeTimeout);
} else {
option.onUploadError&&option.onUploadError(file, xhr.responseText);
}
option.onUploadComplete&&option.onUploadComplete(file,xhr.responseText);
//清除文件选择框中的已有值
fileObj.fileInput.val('');
}
};
option.onUploadStart&&option.onUploadStart();
// 开始上传
xhr.open(option.method, this.url, true);
xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
var fd = new FormData();
fd.append(option.fileObj, file);
fd.append(option.fileObjName, file.name);
if(option.formData){
for(key in option.formData){
fd.append(key,option.formData[key]);
}
}
xhr.send(fd);
}
},
init: function() {
//文件选择控件选择
if (this.fileInput.length>0) {
this.fileInput.change(function(e) {
fileObj.funGetFiles(e);
});
}
//点击上传按钮时触发file的click事件
_this.find('.uploadify-button').on('click',function(){
_this.find('.selectbtn').trigger('click');
});
option.onInit&&option.onInit();
}
};
//初始化文件对象
fileObj.init();
});
}
})(jQuery)