File upload progress bar with jQuery
I am trying to implement an AJAX file upload feature in my project. I am using jQuery for this; my code submits the data using AJAX. I also want to implement a file upload p
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JavaScript:
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var myParent = $(this).parent(); var filname= $('input[type=file]').val() if (filname) { $(this).parent().find('#progress-div').show(); $('#myform').ajaxSubmit({ // target: '#progress-div123',/**********only for response************/ beforeSubmit: function () { myParent.find('#progress-bar').width('0%'); }, uploadProgress: function (event, position, total, percentComplete) { myParent.find('#progress-bar').width(percentComplete + '%'); myParent.find('#progress-bar').html('<div id="progress-status">' + percentComplete + ' %</div>') }, success: function showResponse(responseText, statusText, xhr, $form) { //myParent.find('#progress-div').hide(10000); }, resetForm: false }); } return false; }); /***********Error msg if file not valid***************/ $('input[type=file]').change(function () { var val = $(this).val().toLowerCase(); var regex = new RegExp("(.*?)\.(pdf|txt|jpg|png|doc|docx|xlx|xls|xlsx|jpg|ppt|pptx|tif|tiff|\n\ bmp|pcd|gif|bmp|zip|rar|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv|stp|sldprt|sldasm|iges|igs|stl|x_t|step\n\ |stp|prt|asm|idw|iam|ipt|dxf|dwg|pdf|slddrw|dwf)$"); if (!(regex.test(val))) { $(this).val(''); alert('Please select correct file format'); } }); /*********End*****************/ }); </script>Styles:
<style> body{width:610px;} #uploadForm {border-top:#F0F0F0 2px solid;background:#FAF8F8;padding:10px;} #uploadForm label {margin:2px; font-size:1em; font-weight:bold;} .demoInputBox{padding:5px; border:#F0F0F0 1px solid; border-radius:4px; background-color:#FFF;} #progress-bar {background-color: #12CC1A;height:20px;color: #FFFFFF;width:0%;-webkit-transition: width .3s;-moz-transition: width .3s;transition: width .3s;} .btnSubmit{background-color:#09f;border:0;padding:10px 40px;color:#FFF;border:#F0F0F0 1px solid; border-radius:4px;} #progress-div { border: 1px solid #0fa015; border-radius: 4px; margin: -35px 2px 7px 295px; padding: 5px 0; text-align: center; width: 277px; } #targetLayer{width:100%;text-align:center;} </style>讨论(0) -
I've done this with jQuery only:
$.ajax({ xhr: function() { var xhr = new window.XMLHttpRequest(); xhr.upload.addEventListener("progress", function(evt) { if (evt.lengthComputable) { var percentComplete = evt.loaded / evt.total; percentComplete = parseInt(percentComplete * 100); console.log(percentComplete); if (percentComplete === 100) { } } }, false); return xhr; }, url: posturlfile, type: "POST", data: JSON.stringify(fileuploaddata), contentType: "application/json", dataType: "json", success: function(result) { console.log(result); } });讨论(0) -
check this out: http://hayageek.com/docs/jquery-upload-file.php I've found it accidentally on the net.
讨论(0) -
Note: This question is related to the jQuery form plugin. If you are searching for a pure jQuery solution, start here. There is no overall jQuery solution for all browser. So you have to use a plugin. I am using dropzone.js, which have an easy fallback for older browsers. Which plugin you prefer depends on your needs. There are a lot of good comparing post out there.
From the examples:
jQuery:
$(function() { var bar = $('.bar'); var percent = $('.percent'); var status = $('#status'); $('form').ajaxForm({ beforeSend: function() { status.empty(); var percentVal = '0%'; bar.width(percentVal); percent.html(percentVal); }, uploadProgress: function(event, position, total, percentComplete) { var percentVal = percentComplete + '%'; bar.width(percentVal); percent.html(percentVal); }, complete: function(xhr) { status.html(xhr.responseText); } }); });html:
<form action="file-echo2.php" method="post" enctype="multipart/form-data"> <input type="file" name="myfile"><br> <input type="submit" value="Upload File to Server"> </form> <div class="progress"> <div class="bar"></div > <div class="percent">0%</div > </div> <div id="status"></div>you have to style the progressbar with css...
讨论(0) -
If you are using jquery on your project, and do not want to implement the upload mechanism from scratch, you can use https://github.com/blueimp/jQuery-File-Upload.
They have a very nice api with multiple file selection, drag&drop support, progress bar, validation and preview images, cross-domain support, chunked and resumable file uploads. And they have sample scripts for multiple server languages(node, php, python and go).
Demo url: https://blueimp.github.io/jQuery-File-Upload/.
讨论(0) -
I have used the following in my project. you can try too.
ajax = new XMLHttpRequest(); ajax.onreadystatechange = function () { if (ajax.status) { if (ajax.status == 200 && (ajax.readyState == 4)){ //To do tasks if any, when upload is completed } } } ajax.upload.addEventListener("progress", function (event) { var percent = (event.loaded / event.total) * 100; //**percent** variable can be used for modifying the length of your progress bar. console.log(percent); }); ajax.open("POST", 'your file upload link', true); ajax.send(formData); //ajax.send is for uploading form data.讨论(0)
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