多文件上报，确认文件存在
我正在尝试使用以下脚本将多个文件上传到该文件夹，它可以正常工作，只是在将文件上传到该文件夹之前不检查文件是否已存在。如果我第二次上载相同的文件，则显示状态为完成，然后再次上载相同的文件。我想检查同一文件夹中是否存在相同的文件，如果存在，则需要显示一条消息File already exists and would you like to override。
我试图更改jQuery，它不起作用。谁能帮我。
工作图像屏幕截图
<?php
if (isset($_POST) && $_SERVER['REQUEST_METHOD'] == "POST") {
$vpb_file_name = strip_tags($_FILES['upload_file']['name']); //File Name
$vpb_file_id = strip_tags($_POST['upload_file_ids']); // File id is gotten from the file name
$vpb_file_size = $_FILES['upload_file']['size']; // File Size
$vpb_uploaded_files_location = 'uploads/'; //This is the directory where uploaded files are saved on your server
$vpb_final_location = $vpb_uploaded_files_location . $vpb_file_name; //Directory to save file plus the file to be saved
//Without Validation and does not save filenames in the database
if (move_uploaded_file(strip_tags($_FILES['upload_file']['tmp_name']), $vpb_final_location)) {
//Display the file id
echo $vpb_file_id;
} else {
//Display general system error
echo 'general_system_error';
}
}
?>
</code>
function vpb_multiple_file_uploader(vpb_configuration_settings)
{
this.vpb_settings = vpb_configuration_settings;
this.vpb_files = "";
this.vpb_browsed_files = []
var self = this;
var vpb_msg = "Sorry, your browser does not support this application. Thank You!";
//Get all browsed file extensions
function vpb_file_ext(file) {
return (/[.]/.exec(file)) ? /[^.]+$/.exec(file.toLowerCase()) : '';
}
/* Display added files which are ready for upload */
//with their file types, names, size, date last modified along with an option to remove an unwanted file
vpb_multiple_file_uploader.prototype.vpb_show_added_files = function(vpb_value)
{
this.vpb_files = vpb_value;
if(this.vpb_files.length > 0)
{
var vpb_added_files_displayer = vpb_file_id = "";
for(var i = 0; i<this.vpb_files.length; i++)
{
//Use the names of the files without their extensions as their ids
var files_name_without_extensions = this.vpb_files[i].name.substr(0, this.vpb_files[i].name.lastIndexOf('.')) || this.vpb_files[i].name;
vpb_file_id = files_name_without_extensions.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '');
var vpb_file_to_add = vpb_file_ext(this.vpb_files[i].name);
var vpb_class = $("#added_class").val();
var vpb_file_icon;
//Check and display File Size
var vpb_fileSize = (this.vpb_files[i].size / 1024);
if (vpb_fileSize / 1024 > 1)
{
if (((vpb_fileSize / 1024) / 1024) > 1)
{
vpb_fileSize = (Math.round(((vpb_fileSize / 1024) / 1024) * 100) / 100);
var vpb_actual_fileSize = vpb_fileSize + " GB";
}
else
{
vpb_fileSize = (Math.round((vpb_fileSize / 1024) * 100) / 100)
var vpb_actual_fileSize = vpb_fileSize + " MB";
}
}
else
{
vpb_fileSize = (Math.round(vpb_fileSize * 100) / 100)
var vpb_actual_fileSize = vpb_fileSize + " KB";
}
//Check and display the date that files were last modified
var vpb_date_last_modified = new Date(this.vpb_files[i].lastModifiedDate);
var dd = vpb_date_last_modified.getDate();
var mm = vpb_date_last_modified.getMonth() + 1;
var yyyy = vpb_date_last_modified.getFullYear();
var vpb_date_last_modified_file = dd + '/' + mm + '/' + yyyy;
//File Display Classes
if( vpb_class == 'vpb_blue' ) {
var new_classc = 'vpb_white';
} else {
var new_classc = 'vpb_blue';
}
if(typeof this.vpb_files[i] != undefined && this.vpb_files[i].name != "")
{
//Check for the type of file browsed so as to represent each file with the appropriate file icon
if( vpb_file_to_add == "jpg" || vpb_file_to_add == "JPG" || vpb_file_to_add == "jpeg" || vpb_file_to_add == "JPEG" || vpb_file_to_add == "gif" || vpb_file_to_add == "GIF" || vpb_file_to_add == "png" || vpb_file_to_add == "PNG" )
{
vpb_file_icon = '<img src="images/images_file.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "doc" || vpb_file_to_add == "docx" || vpb_file_to_add == "rtf" || vpb_file_to_add == "DOC" || vpb_file_to_add == "DOCX" )
{
vpb_file_icon = '<img src="images/doc.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "pdf" || vpb_file_to_add == "PDF" )
{
vpb_file_icon = '<img src="images/pdf.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "txt" || vpb_file_to_add == "TXT" || vpb_file_to_add == "RTF" )
{
vpb_file_icon = '<img src="images/txt.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "php" )
{
vpb_file_icon = '<img src="images/php.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "css" )
{
vpb_file_icon = '<img src="images/general.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "js" )
{
vpb_file_icon = '<img src="images/general.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "html" || vpb_file_to_add == "HTML" || vpb_file_to_add == "htm" || vpb_file_to_add == "HTM" )
{
vpb_file_icon = '<img src="images/html.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "setup" )
{
vpb_file_icon = '<img src="images/setup.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "video" )
{
vpb_file_icon = '<img src="images/video.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "real" )
{
vpb_file_icon = '<img src="images/real.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "psd" )
{
vpb_file_icon = '<img src="images/psd.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "fla" )
{
vpb_file_icon = '<img src="images/fla.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "xls" )
{
vpb_file_icon = '<img src="images/xls.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "swf" )
{
vpb_file_icon = '<img src="images/swf.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "eps" )
{
vpb_file_icon = '<img src="images/eps.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "exe" )
{
vpb_file_icon = '<img src="images/exe.gif" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "binary" )
{
vpb_file_icon = '<img src="images/binary.png" align="absmiddle" border="0" alt="" />';
}
else if( vpb_file_to_add == "zip" )
{
vpb_file_icon = '<img src="images/archive.png" align="absmiddle" border="0" alt="" />';
}
else
{
vpb_file_icon = '<img src="images/general.png" align="absmiddle" border="0" alt="" />';
}
//Assign browsed files to a variable so as to later display them below
vpb_added_files_displayer += '<tr id="add_fileID'+vpb_file_id+'" class="'+new_classc+'"><td>'+vpb_file_icon+' '+this.vpb_files[i].name.substring(0, 40)+'</td><td><span id="uploading_'+vpb_file_id+'"><span style=color:blue;>Ready</span></span></td><td>'+vpb_actual_fileSize+'</td><td><span id="remove'+vpb_file_id+'"><span class="vpb_files_remove_left_inner" onclick="vpb_remove_this_file(\''+vpb_file_id+'\',\''+this.vpb_files[i].name+'\');">Remove</span></span></td></tr></div>';
}
}
//Display browsed files on the screen to the user who wants to upload them
$("#add_files").append(vpb_added_files_displayer);
$("#added_class").val(new_classc);
}
}
//File Reader
vpb_multiple_file_uploader.prototype.vpb_read_file = function(vpb_e) {
if(vpb_e.target.files) {
self.vpb_show_added_files(vpb_e.target.files);
self.vpb_browsed_files.push(vpb_e.target.files);
} else {
alert('Sorry, a file you have specified could not be read at the moment. Thank You!');
}
}
function addEvent(type, el, fn){
if (window.addEventListener){
el.addEventListener(type, fn, false);
} else if (window.attachEvent){
var f = function(){
fn.call(el, window.event);
};
el.attachEvent('on' + type, f)
}
}
//Get the ids of all added files and also start the upload when called
vpb_multiple_file_uploader.prototype.vpb_starter = function() {
if (window.File && window.FileReader && window.FileList && window.Blob) {
var vpb_browsed_file_ids = $("#"+this.vpb_settings.vpb_form_id).find("input[type='file']").eq(0).attr("id");
document.getElementById(vpb_browsed_file_ids).addEventListener("change", this.vpb_read_file, false);
document.getElementById(this.vpb_settings.vpb_form_id).addEventListener("submit", this.vpb_submit_added_files, true);
}
else { alert(vpb_msg); }
}
//Call the uploading function when click on the upload button
vpb_multiple_file_uploader.prototype.vpb_submit_added_files = function(){ self.vpb_upload_bgin(); }
//Start uploads
vpb_multiple_file_uploader.prototype.vpb_upload_bgin = function() {
if(this.vpb_browsed_files.length > 0) {
for(var k=0; k<this.vpb_browsed_files.length; k++){
var file = this.vpb_browsed_files[k];
this.vasPLUS(file,0);
}
}
}
//Main file uploader
vpb_multiple_file_uploader.prototype.vasPLUS = function(file,file_counter)
{
if(typeof file[file_counter] != undefined && file[file_counter] != '')
{
//Use the file names without their extensions as their ids
var files_name_without_extensions = file[file_counter].name.substr(0, file[file_counter].name.lastIndexOf('.')) || file[file_counter].name;
var ids = files_name_without_extensions.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '');
var vpb_browsed_file_ids = $("#"+this.vpb_settings.vpb_form_id).find("input[type='file']").eq(0).attr("id");
var removed_file = $("#"+ids).val();
if ( removed_file != "" && removed_file != undefined && removed_file == ids )
{
self.vasPLUS(file,file_counter+1);
}
else
{
var dataString = new FormData();
dataString.append('upload_file',file[file_counter]);
dataString.append('upload_file_ids',ids);
$.ajax({
type:"POST",
url:this.vpb_settings.vpb_server_url,
data:dataString,
cache: false,
contentType: false,
processData: false,
beforeSend: function()
{
$("#uploading_"+ids).html('<div align="left"><img src="images/loadings.gif" width="80" align="absmiddle" title="Upload...."/></div>');
$("#remove"+ids).html('<div align="center" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:blue;">Uploading...</div>');
},
success:function(response)
{
setTimeout(function() {
var response_brought = response.indexOf(ids);
if ( response_brought != -1) {
$("#uploading_"+ids).html('<div align="left" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:blue;">Completed</div>');
$("#remove"+ids).html('<div align="center" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:gray;">Uploaded</div>');
} else {
var fileType_response_brought = response.indexOf('file_type_error');
if ( fileType_response_brought != -1) {
var filenamewithoutextension = response.replace('file_type_error&', '').substr(0, response.replace('file_type_error&', '').lastIndexOf('.')) || response.replace('file_type_error&', '');
var fileID = filenamewithoutextension.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '');
$("#uploading_"+fileID).html('<div align="left" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:red;">Invalid File</div>');
$("#remove"+fileID).html('<div align="center" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:orange;">Cancelled</div>');
} else {
var filesize_response_brought = response.indexOf('file_size_error');
if ( filesize_response_brought != -1) {
var filenamewithoutextensions = response.replace('file_size_error&', '').substr(0, response.replace('file_size_error&', '').lastIndexOf('.')) || response.replace('file_size_error&', '');
var fileID = filenamewithoutextensions.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '');
$("#uploading_"+fileID).html('<div align="left" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:red;">Exceeded Size</div>');
$("#remove"+fileID).html('<div align="center" style="font-family:Verdana, Geneva, sans-serif;font-size:11px;color:orange;">Cancelled</div>');
} else {
var general_response_brought = response.indexOf('general_system_error');
if ( general_response_brought != -1) {
alert('Sorry, the file was not uploaded...');
}
else { /* Do nothing */}
}
}
}
if (file_counter+1 < file.length ) {
self.vasPLUS(file,file_counter+1);
}
else {}
},2000);
}
});
}
}
else { alert('Sorry, this system could not verify the identity of the file you were trying to upload at the moment. Thank You!'); }
}
this.vpb_starter();
}
function vpb_remove_this_file(id, filename)
{
if(confirm('If you are sure to remove the file: '+filename+' then click on OK otherwise, Cancel it.'))
{
$("#vpb_removed_files").append('<input type="hidden" id="'+id+'" value="'+id+'">');
$("#add_fileID"+id).slideUp();
}
return false;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<title>Multiple File Upload using Ajax, Jquery and PHP</title>
<link href="css/bootstrap.css" rel="stylesheet" type="text/css" media="screen">
<link rel="stylesheet" type="text/css" href="css/DT_bootstrap.css">
</head>
<script src="js/jquery.min.js" type="text/javascript"></script>
<script src="js/bootstrap.js" type="text/javascript"></script>
<script type="text/javascript" charset="utf-8" language="javascript" src="js/jquery.dataTables.js"></script>
<script type="text/javascript" charset="utf-8" language="javascript" src="js/DT_bootstrap.js"></script>
<script type="text/javascript" src="js/jquery_1.5.2.js"></script>
<script type="text/javascript" src="js/vpb_uploader.js"></script>
<script type="text/javascript">
$(document).ready(function()
{
// Call the main function
new vpb_multiple_file_uploader
({
vpb_form_id: "form_id", // Form ID
autoSubmit: true,
vpb_server_url: "upload.php"
});
});
</script>
<style>
body {
font-family:Verdana, Geneva, sans-serif;
}
span{
color:red;
cursor:pointer;
}
</style>
<body>
<center>
<h2 style="color:blue; text-align:center;">Multiple Files Upload</h2>
<form name="form_id" id="form_id" action="javascript:void(0);" enctype="multipart/form-data" style="width:800px; margin-top:20px;">
<input type="file" name="vasplus_multiple_files" id="vasplus_multiple_files" multiple="multiple" style="padding:5px;"/>
<input type="submit" value="Upload" style="padding:5px;"/>
</form>
<table class="table table-striped table-bordered" style="width:60%;" id="add_files">
<thead>
<tr>
<th style="color:blue; text-align:center;">File Name</th>
<th style="color:blue; text-align:center;">Status</th>
<th style="color:blue; text-align:center;">File Size</th>
<th style="color:blue; text-align:center;">Action</th>
<tr>
</thead>
<tbody>
</tbody>
</table>
</center>
</body>
</html>
0 个答案:
没有答案
相关问题
最新问题
- 我写了这段代码，但我无法理解我的错误
- 我无法从一个代码实例的列表中删除 None 值，但我可以在另一个实例中。为什么它适用于一个细分市场而不适用于另一个细分市场？
- 是否有可能使 loadstring 不可能等于打印？卢阿
- java中的random.expovariate()
- Appscript 通过会议在 Google 日历中发送电子邮件和创建活动
- 为什么我的 Onclick 箭头功能在 React 中不起作用？
- 在此代码中是否有使用“this”的替代方法？
- 在 SQL Server 和 PostgreSQL 上查询，我如何从第一个表获得第二个表的可视化
- 每千个数字得到
- 更新了城市边界 KML 文件的来源？