一,ajaxfileupload
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/fn" %> <%@ taglib prefix="cus" uri="http://web.microcare.com/tag"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <script type="text/javascript" src="/tpl/html/common/ajaxfileupload/ajaxfileupload.js"></script> <c:import url="${contextpath}/tpl/html/appuploadjs.jsp" /> </head> <body> <input type=file id="appFile" name="appFile" onchange="getValue();" style="-moz-opacity:0;filter:alpha(opacity=0);opacity:0;position:absolute;left:166px;" /> <input id="appFilename" style="color: green;border: 1px solid green;width:300px;" /> <input type="button" value="File" style="border: 1px solid green;width:80px;" /> </body> </html>
<%@ page contentType="text/html;charset=UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%> <script type="text/javascript"> function getValue(){ document.getElementById('appFilename').value = document.getElementById('appFile').value; validateImage(); ajaxFileUpload(); } function ajaxFileUpload() { /* $("#loading") .ajaxStart(function(){ $(this).show(); }) .ajaxComplete(function(){ $(this).hide(); }); */ $.ajaxFileUpload ( { url:'/json/dff.action?op=App.upload', secureuri:false, fileElementId:'appFile', dataType: 'json', success: function (data, status) { alert("1"+data); alert("5"+data.data.errorCode); if(typeof(data.errorCode) != undefined) { alert(data.data.errorCode); } }, error: function (data, status, e) { alert("2"+data); alert("3"+status); alert("4"+e); } } ) return false; } //校验图片格式及大小 Add Date 2012-6-14 LIUYI function validateImage() { var tmpFileValue = document.getElementById('appFilename').value; //校验图片格式 if(/^.*?\.(apk|ipa)$/.test(tmpFileValue.toLowerCase())){ return true; } else { alert("只能上传apk和ipa格式的文件!"); return false; } if(file.value == ""){ alert("请选择上传的文件!"); return false; } } </script>
jQuery.extend({ createUploadIframe: function(id, uri) { //create frame var frameId = 'jUploadFrame' + id; var iframeHtml = '<iframe id="' + frameId + '" name="' + frameId + '" style="position:absolute; top:-9999px; left:-9999px"'; if(window.ActiveXObject) { if(typeof uri== 'boolean'){ iframeHtml += ' src="' + 'javascript:false' + '"'; } else if(typeof uri== 'string'){ iframeHtml += ' src="' + uri + '"'; } } iframeHtml += ' />'; jQuery(iframeHtml).appendTo(document.body); return jQuery('#' + frameId).get(0); }, createUploadForm: function(id, fileElementId, data) { //create form var formId = 'jUploadForm' + id; var fileId = 'jUploadFile' + id; var form = jQuery('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>'); if(data) { for(var i in data) { jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo(form); } } var oldElement = jQuery('#' + fileElementId); var newElement = jQuery(oldElement).clone(); jQuery(oldElement).attr('id', fileId); jQuery(oldElement).before(newElement); jQuery(oldElement).appendTo(form); //set attributes jQuery(form).css('position', 'absolute'); jQuery(form).css('top', '-1200px'); jQuery(form).css('left', '-1200px'); jQuery(form).appendTo('body'); return form; }, ajaxFileUpload: function(s) { // TODO introduce global settings, allowing the client to modify them for all requests, not only timeout s = jQuery.extend({}, jQuery.ajaxSettings, s); var id = new Date().getTime() var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=='undefined'?false:s.data)); var io = jQuery.createUploadIframe(id, s.secureuri); var frameId = 'jUploadFrame' + id; var formId = 'jUploadForm' + id; // Watch for a new set of requests if ( s.global && ! jQuery.active++ ) { jQuery.event.trigger( "ajaxStart" ); } var requestDone = false; // Create the request object var xml = {} if ( s.global ) jQuery.event.trigger("ajaxSend", [xml, s]); // Wait for a response to come back var uploadCallback = function(isTimeout) { var io = document.getElementById(frameId); try { if(io.contentWindow) { xml.responseText = io.contentWindow.document.body?io.contentWindow.document.body.innerHTML:null; xml.responseXML = io.contentWindow.document.XMLDocument?io.contentWindow.document.XMLDocument:io.contentWindow.document; }else if(io.contentDocument) { xml.responseText = io.contentDocument.document.body?io.contentDocument.document.body.innerHTML:null; xml.responseXML = io.contentDocument.document.XMLDocument?io.contentDocument.document.XMLDocument:io.contentDocument.document; } }catch(e) { jQuery.handleError(s, xml, null, e); } if ( xml || isTimeout == "timeout") { requestDone = true; var status; try { status = isTimeout != "timeout" ? "success" : "error"; // Make sure that the request was successful or notmodified if ( status != "error" ) { // process the data (runs the xml through httpData regardless of callback) var data = jQuery.uploadHttpData( xml, s.dataType ); // If a local callback was specified, fire it and pass it the data if ( s.success ) s.success( data, status ); // Fire the global callback if( s.global ) jQuery.event.trigger( "ajaxSuccess", [xml, s] ); } else jQuery.handleError(s, xml, status); } catch(e) { status = "error"; jQuery.handleError(s, xml, status, e); } // The request was completed if( s.global ) jQuery.event.trigger( "ajaxComplete", [xml, s] ); // Handle the global AJAX counter if ( s.global && ! --jQuery.active ) jQuery.event.trigger( "ajaxStop" ); // Process result if ( s.complete ) s.complete(xml, status); jQuery(io).unbind() setTimeout(function() { try { jQuery(io).remove(); jQuery(form).remove(); } catch(e) { jQuery.handleError(s, xml, null, e); } }, 100) xml = null } } // Timeout checker if ( s.timeout > 0 ) { setTimeout(function(){ // Check to see if the request is still happening if( !requestDone ) uploadCallback( "timeout" ); }, s.timeout); } try { var form = jQuery('#' + formId); jQuery(form).attr('action', s.url); jQuery(form).attr('method', 'POST'); jQuery(form).attr('target', frameId); if(form.encoding) { jQuery(form).attr('encoding', 'multipart/form-data'); } else { jQuery(form).attr('enctype', 'multipart/form-data'); } jQuery(form).submit(); } catch(e) { jQuery.handleError(s, xml, null, e); } jQuery('#' + frameId).load(uploadCallback ); return {abort: function () {}}; }, uploadHttpData: function( r, type ) { var data = !type; data = type == "xml" || data ? r.responseXML : r.responseText; // If the type is "script", eval it in global context if ( type == "script" ) jQuery.globalEval( data ); // Get the JavaScript object, if JSON is used. if ( type == "json" ) eval( "data = " + data ); // evaluate scripts within html if ( type == "html" ) jQuery("<div>").html(data).evalScripts(); return data; }, handleError: function( s, xhr, status, e ) { // If a local callback was specified, fire it if ( s.error ) { s.error.call( s.context || s, xhr, status, e ); } // Fire the global callback if ( s.global ) { (s.context ? jQuery(s.context) : jQuery.event).trigger( "ajaxError", [xhr, s, e] ); } } })
第二种为ajaxupload
上传文档: <script src="/js/common/AjaxUpload.js" type="text/javascript"></script> <div class="uploadFile"> <span id="doc"><input type="text" disabled="disabled" /></span> <input type="hidden" id="hidFileName" /> <input type="button" id="btnUploadFile" value="上传" /> <input type="button" id="btnDeleteFile" value="删除" /> </div> 上传图片: <div class="uploadImg"> <img id="imgShow" src="/images/nophoto.gif" /> <input type="hidden" id="hidImgName" /> <input type="button" id="btnUploadImg" value="上传" /> <input type="button" id="btnDeleteImg" value="删除" /> </div>
window.onload = function() { init(); //初始化 } //初始化 function init() { //初始化文档上传 var btnFile = document.getElementById("btnUploadFile"); var doc = document.getElementById("doc"); var hidFileName = document.getElementById("hidFileName"); document.getElementById("btnDeleteFile").onclick = function() { DelFile(doc, hidFileName); }; g_AjxUploadFile(btnFile, doc, hidFileName); //初始化图片上传 var btnImg = document.getElementById("btnUploadImg"); var img = document.getElementById("imgShow"); var hidImgName = document.getElementById("hidImgName"); document.getElementById("btnDeleteImg").onclick = function() { DelImg(img, hidImgName); }; g_AjxUploadImg(btnImg, img, hidImgName); } var g_AjxTempDir = "/file/temp/"; //文档上传 function g_AjxUploadFile(btn, doc, hidPut, action) { var button = btn, interval; new AjaxUpload(button, { action: ((action == null || action == undefined) ? '/Common/UploadHandler.ashx?fileType=file' : action), data: {}, name: 'myfile', onSubmit: function(file, ext) { if (!(ext && /^(rar|zip|pdf|pdfx|txt|csv|xls|xlsx|doc|docx|RAR|ZIP|PDF|PDFX|TXT|CSV|XLS|XLSX|DOC|DOCX)$/.test(ext))) { alert("您上传的文档格式不对,请重新选择!"); return false; } }, onComplete: function(file, response) { flagValue = response; if (flagValue == "1") { alert("您上传的文档格式不对,请重新选择!"); } else if (flagValue == "2") { alert("您上传的文档大于2M,请重新选择!"); } else if (flagValue == "3") { alert("文档上传失败!"); } else { hidPut.value = response; doc.innerHTML="<a href='" + g_AjxTempDir + response + "' target='_blank'>" + response + "</a>"; } } }); } //图片上传 function g_AjxUploadImg(btn, img, hidPut) { var button = btn, interval; new AjaxUpload(button, { action: '/Common/UploadHandler.ashx?fileType=img', data: {}, name: 'myfile', onSubmit: function(file, ext) { if (!(ext && /^(jpg|JPG|png|PNG|gif|GIF)$/.test(ext))) { alert("您上传的图片格式不对,请重新选择!"); return false; } }, onComplete: function(file, response) { flagValue = response; if (flagValue == "1") { alert("您上传的图片格式不对,请重新选择!"); } else if (flagValue == "2") { alert("您上传的图片大于200K,请重新选择!"); } else if (flagValue == "3") { alert("图片上传失败!"); } else { hidPut.value = response; img.src = g_AjxTempDir + response; } } }); } //删除文档 function DelFile(doc, hidPut) { hidPut.value = ""; doc.innerHTML = "<input type=\"text\" disabled=\"disabled\" />"; } //删除图片 function DelImg(img, hidPut) { hidPut.value = ""; img.src = "/images/nophoto.gif"; }
/*上传文件*/ .uploadFile{margin-bottom:10px;} /*上传图片*/ .uploadImg{} .uploadImg img{width:102px; height:64px; border:1px solid #CCCCCC; display: block;}
/** * AJAX Upload ( http://valums.com/ajax-upload/ ) * Copyright (c) Andris Valums * Licensed under the MIT license ( http://valums.com/mit-license/ ) * Thanks to Gary Haran, David Mark, Corey Burns and others for contributions */ (function () { /* global window */ /* jslint browser: true, devel: true, undef: true, nomen: true, bitwise: true, regexp: true, newcap: true, immed: true */ /** * Wrapper for FireBug's console.log */ function log() { if (typeof(console) != 'undefined' && typeof(console.log) == 'function') { Array.prototype.unshift.call(arguments, '[Ajax Upload]'); console.log(Array.prototype.join.call(arguments, ' ')); } } /** * Attaches event to a dom element. * @param {Element} el * @param type event name * @param fn callback This refers to the passed element */ function addEvent(el, type, fn) { if (el.addEventListener) { el.addEventListener(type, fn, false); } else if (el.attachEvent) { el.attachEvent('on' + type, function () { fn.call(el); }); } else { throw new Error('not supported or DOM not loaded'); } } /** * Attaches resize event to a window, limiting * number of event fired. Fires only when encounteres * delay of 100 after series of events. * * Some browsers fire event multiple times when resizing * http://www.quirksmode.org/dom/events/resize.html * * @param fn callback This refers to the passed element */ function addResizeEvent(fn) { var timeout; addEvent(window, 'resize', function () { if (timeout) { clearTimeout(timeout); } timeout = setTimeout(fn, 100); }); } // Needs more testing, will be rewriten for next version // getOffset function copied from jQuery lib (http://jquery.com/) if (document.documentElement.getBoundingClientRect) { // Get Offset using getBoundingClientRect // http://ejohn.org/blog/getboundingclientrect-is-awesome/ var getOffset = function (el) { var box = el.getBoundingClientRect(); var doc = el.ownerDocument; var body = doc.body; var docElem = doc.documentElement; // for ie var clientTop = docElem.clientTop || body.clientTop || 0; var clientLeft = docElem.clientLeft || body.clientLeft || 0; // In Internet Explorer 7 getBoundingClientRect property is treated as physical, // while others are logical. Make all logical, like in IE8. var zoom = 1; if (body.getBoundingClientRect) { var bound = body.getBoundingClientRect(); zoom = (bound.right - bound.left) / body.clientWidth; } if (zoom > 1) { clientTop = 0; clientLeft = 0; } var top = box.top / zoom + (window.pageYOffset || docElem && docElem.scrollTop / zoom || body.scrollTop / zoom) - clientTop, left = box.left / zoom + (window.pageXOffset || docElem && docElem.scrollLeft / zoom || body.scrollLeft / zoom) - clientLeft; return { top: top, left: left }; }; } else { // Get offset adding all offsets var getOffset = function (el) { var top = 0, left = 0; do { top += el.offsetTop || 0; left += el.offsetLeft || 0; el = el.offsetParent; } while (el); return { left: left, top: top }; }; } /** * Returns left, top, right and bottom properties describing the border-box, * in pixels, with the top-left relative to the body * @param {Element} el * @return {Object} Contains left, top, right,bottom */ function getBox(el) { var left, right, top, bottom; var offset = getOffset(el); left = offset.left; top = offset.top; right = left + el.offsetWidth; bottom = top + el.offsetHeight; return { left: left, right: right, top: top, bottom: bottom }; } /** * Helper that takes object literal * and add all properties to element.style * @param {Element} el * @param {Object} styles */ function addStyles(el, styles) { for (var name in styles) { if (styles.hasOwnProperty(name)) { el.style[name] = styles[name]; } } } /** * Function places an absolutely positioned * element on top of the specified element * copying position and dimentions. * @param {Element} from * @param {Element} to */ function copyLayout(from, to) { var box = getBox(from); addStyles(to, { position: 'absolute', left: box.left + 'px', top: box.top + 'px', width: from.offsetWidth + 'px', height: from.offsetHeight + 'px' }); } /** * Creates and returns element from html chunk * Uses innerHTML to create an element */ var toElement = (function () { var div = document.createElement('div'); return function (html) { div.innerHTML = html; var el = div.firstChild; return div.removeChild(el); }; })(); /** * Function generates unique id * @return unique id */ var getUID = (function () { var id = 0; return function () { return 'ValumsAjaxUpload' + id++; }; })(); /** * Get file name from path * @param {String} file path to file * @return filename */ function fileFromPath(file) { return file.replace(/.*(\/|\\)/, ""); } /** * Get file extension lowercase * @param {String} file name * @return file extenstion */ function getExt(file) { return (-1 !== file.indexOf('.')) ? file.replace(/.*[.]/, '') : ''; } function hasClass(el, name) { var re = new RegExp('\\b' + name + '\\b'); return re.test(el.className); } function addClass(el, name) { if (!hasClass(el, name)) { el.className += ' ' + name; } } function removeClass(el, name) { var re = new RegExp('\\b' + name + '\\b'); el.className = el.className.replace(re, ''); } function removeNode(el) { el.parentNode.removeChild(el); } /** * Easy styling and uploading * @constructor * @param button An element you want convert to * upload button. Tested dimentions up to 500x500px * @param {Object} options See defaults below. */ window.AjaxUpload = function (button, options) { this._settings = { // Location of the server-side upload script action: 'upload.php', // File upload name name: 'userfile', // Additional data to send data: {}, // Submit file as soon as it's selected autoSubmit: true, // The type of data that you're expecting back from the server. // html and xml are detected automatically. // Only useful when you are using json data as a response. // Set to "json" in that case. responseType: false, // Class applied to button when mouse is hovered hoverClass: 'hover', // Class applied to button when AU is disabled disabledClass: 'disabled', // When user selects a file, useful with autoSubmit disabled // You can return false to cancel upload onChange: function (file, extension) {}, // Callback to fire before file is uploaded // You can return false to cancel upload onSubmit: function (file, extension) {}, // Fired when file upload is completed // WARNING! DO NOT USE "FALSE" STRING AS A RESPONSE! onComplete: function (file, response) {} }; // Merge the users options with our defaults for (var i in options) { if (options.hasOwnProperty(i)) { this._settings[i] = options[i]; } } // button isn't necessary a dom element if (button.jquery) { // jQuery object was passed button = button[0]; } else if (typeof button == "string") { if (/^#.*/.test(button)) { // If jQuery user passes #elementId don't break it button = button.slice(1); } button = document.getElementById(button); } if (!button || button.nodeType !== 1) { throw new Error("Please make sure that you're passing a valid element"); } if (button.nodeName.toUpperCase() == 'A') { // disable link addEvent(button, 'click', function (e) { if (e && e.preventDefault) { e.preventDefault(); } else if (window.event) { window.event.returnValue = false; } }); } // DOM element this._button = button; // DOM element this._input = null; // If disabled clicking on button won't do anything this._disabled = false; // if the button was disabled before refresh if will remain // disabled in FireFox, let's fix it this.enable(); this._rerouteClicks(); }; // assigning methods to our class AjaxUpload.prototype = { setData: function (data) { this._settings.data = data; }, disable: function () { addClass(this._button, this._settings.disabledClass); this._disabled = true; var nodeName = this._button.nodeName.toUpperCase(); if (nodeName == 'INPUT' || nodeName == 'BUTTON') { this._button.setAttribute('disabled', 'disabled'); } // hide input if (this._input) { // We use visibility instead of display to fix problem with Safari 4 // The problem is that the value of input doesn't change if it // has display none when user selects a file this._input.parentNode.style.visibility = 'hidden'; } }, enable: function () { removeClass(this._button, this._settings.disabledClass); this._button.removeAttribute('disabled'); this._disabled = false; }, /** * Creates invisible file input * that will hover above the button * <div><input type='file' /></div> */ _createInput: function () { var self = this; var input = document.createElement("input"); input.setAttribute('type', 'file'); input.setAttribute('name', this._settings.name); addStyles(input, { 'position': 'absolute', // in Opera only 'browse' button // is clickable and it is located at // the right side of the input 'right': 0, 'margin': 0, 'padding': 0, 'fontSize': '480px', 'cursor': 'pointer' }); var div = document.createElement("div"); addStyles(div, { 'display': 'block', 'position': 'absolute', 'overflow': 'hidden', 'margin': 0, 'padding': 0, 'opacity': 0, // Make sure browse button is in the right side // in Internet Explorer 'direction': 'ltr', //Max zIndex supported by Opera 9.0-9.2 'zIndex': 2147483583 }); // Make sure that element opacity exists. // Otherwise use IE filter if (div.style.opacity !== "0") { if (typeof(div.filters) == 'undefined') { throw new Error('Opacity not supported by the browser'); } div.style.filter = "alpha(opacity=0)"; } addEvent(input, 'change', function () { if (!input || input.value === '') { return; } // Get filename from input, required // as some browsers have path instead of it var file = fileFromPath(input.value); if (false === self._settings.onChange.call(self, file, getExt(file))) { self._clearInput(); return; } // Submit form when value is changed if (self._settings.autoSubmit) { self.submit(); } }); addEvent(input, 'mouseover', function () { addClass(self._button, self._settings.hoverClass); }); addEvent(input, 'mouseout', function () { removeClass(self._button, self._settings.hoverClass); // We use visibility instead of display to fix problem with Safari 4 // The problem is that the value of input doesn't change if it // has display none when user selects a file input.parentNode.style.visibility = 'hidden'; }); div.appendChild(input); document.body.appendChild(div); this._input = input; }, _clearInput: function () { if (!this._input) { return; } // this._input.value = ''; Doesn't work in IE6 removeNode(this._input.parentNode); this._input = null; this._createInput(); removeClass(this._button, this._settings.hoverClass); }, /** * Function makes sure that when user clicks upload button, * the this._input is clicked instead */ _rerouteClicks: function () { var self = this; // IE will later display 'access denied' error // if you use using self._input.click() // other browsers just ignore click() addEvent(self._button, 'mouseover', function () { if (self._disabled) { return; } if (!self._input) { self._createInput(); } var div = self._input.parentNode; copyLayout(self._button, div); div.style.visibility = 'visible'; }); // commented because we now hide input on mouseleave /** * When the window is resized the elements * can be misaligned if button position depends * on window size */ //addResizeEvent(function(){ // if (self._input){ // copyLayout(self._button, self._input.parentNode); // } //}); }, /** * Creates iframe with unique name * @return {Element} iframe */ _createIframe: function () { // We can't use getTime, because it sometimes return // same value in safari :( var id = getUID(); // We can't use following code as the name attribute // won't be properly registered in IE6, and new window // on form submit will open // var iframe = document.createElement('iframe'); // iframe.setAttribute('name', id); var iframe = toElement('<iframe src="javascript:false;" name="' + id + '" />'); // src="javascript:false; was added // because it possibly removes ie6 prompt // "This page contains both secure and nonsecure items" // Anyway, it doesn't do any harm. iframe.setAttribute('id', id); iframe.style.display = 'none'; document.body.appendChild(iframe); return iframe; }, /** * Creates form, that will be submitted to iframe * @param {Element} iframe Where to submit * @return {Element} form */ _createForm: function (iframe) { var settings = this._settings; // We can't use the following code in IE6 // var form = document.createElement('form'); // form.setAttribute('method', 'post'); // form.setAttribute('enctype', 'multipart/form-data'); // Because in this case file won't be attached to request var form = toElement('<form method="post" enctype="multipart/form-data"></form>'); form.setAttribute('action', settings.action); form.setAttribute('target', iframe.name); form.style.display = 'none'; document.body.appendChild(form); // Create hidden input element for each data key for (var prop in settings.data) { if (settings.data.hasOwnProperty(prop)) { var el = document.createElement("input"); el.setAttribute('type', 'hidden'); el.setAttribute('name', prop); el.setAttribute('value', settings.data[prop]); form.appendChild(el); } } return form; }, /** * Gets response from iframe and fires onComplete event when ready * @param iframe * @param file Filename to use in onComplete callback */ _getResponse: function (iframe, file) { // getting response var toDeleteFlag = false, self = this, settings = this._settings; addEvent(iframe, 'load', function () { if ( // For Safari iframe.src == "javascript:'%3Chtml%3E%3C/html%3E';" || // For FF, IE iframe.src == "javascript:'<html></html>';") { // First time around, do not delete. // We reload to blank page, so that reloading main page // does not re-submit the post. if (toDeleteFlag) { // Fix busy state in FF3 setTimeout(function () { removeNode(iframe); }, 0); } return; } var doc = iframe.contentDocument ? iframe.contentDocument : window.frames[iframe.id].document; // fixing Opera 9.26,10.00 if (doc.readyState && doc.readyState != 'complete') { // Opera fires load event multiple times // Even when the DOM is not ready yet // this fix should not affect other browsers return; } // fixing Opera 9.64 if (doc.body && doc.body.innerHTML == "false") { // In Opera 9.64 event was fired second time // when body.innerHTML changed from false // to server response approx. after 1 sec return; } var response; if (doc.XMLDocument) { // response is a xml document Internet Explorer property response = doc.XMLDocument; } else if (doc.body) { // response is html document or plain text response = doc.body.innerHTML; if (settings.responseType && settings.responseType.toLowerCase() == 'json') { // If the document was sent as 'application/javascript' or // 'text/javascript', then the browser wraps the text in a <pre> // tag and performs html encoding on the contents. In this case, // we need to pull the original text content from the text node's // nodeValue property to retrieve the unmangled content. // Note that IE6 only understands text/html if (doc.body.firstChild && doc.body.firstChild.nodeName.toUpperCase() == 'PRE') { response = doc.body.firstChild.firstChild.nodeValue; } if (response) { response = eval("(" + response + ")"); } else { response = {}; } } } else { // response is a xml document response = doc; } settings.onComplete.call(self, file, response); // Reload blank page, so that reloading main page // does not re-submit the post. Also, remember to // delete the frame toDeleteFlag = true; // Fix IE mixed content issue iframe.src = "javascript:'<html></html>';"; }); }, /** * Upload file contained in this._input */ submit: function () { var self = this, settings = this._settings; if (!this._input || this._input.value === '') { return; } var file = fileFromPath(this._input.value); // user returned false to cancel upload if (false === settings.onSubmit.call(this, file, getExt(file))) { this._clearInput(); return; } // sending request var iframe = this._createIframe(); var form = this._createForm(iframe); // assuming following structure // div -> input type='file' removeNode(this._input.parentNode); removeClass(self._button, self._settings.hoverClass); form.appendChild(this._input); form.submit(); // request set, clean up removeNode(form); form = null; removeNode(this._input); this._input = null; // Get response from iframe and fire onComplete event when ready this._getResponse(iframe, file); // get ready for next request this._createInput(); } }; })();
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【上传文件的AJAX小例子】是一个通过HTML5新特性实现的文件上传示例,它结合了AJAX技术,提供了一种无需刷新页面即可完成文件上传的交互方式。在这个例子中,IBM展示了一种创新的文件上传解决方案,尤其是利用了...
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Uploadify提供了一种优雅的方式来处理文件上传,包括预览、进度条显示、多文件上传等功能。使用Uploadify,你需要在HTML中定义一个input元素,并为其添加特定的class或ID以供插件识别: ```html ``` 然后在...
总的来说,Ajax上传文件是一种提升用户体验的有效方式。通过使用`AjaxForm`、`AjaxFileUpload`或`AjaxUpload`等工具,我们可以轻松地实现异步文件上传,同时还能处理上传进度、错误和服务器响应。记住,无论选择哪种...
本教程将探讨如何使用Apache Commons FileUpload库实现这两种上传方式:普通表单上传和使用jQuery进行AJAX后台上传。 首先,Apache Commons FileUpload是Java中一个强大的文件上传处理库,它扩展了Servlet API的...
这两种方法都是在Web应用中处理用户上传文件的常见方式,特别是当需要在后台处理文件且不刷新整个页面时,AJAX上传就显得尤为重要。 首先,我们来看**Spring MVC**。Spring MVC是Spring框架的一个模块,专门用于...
首先,文件上传是Web应用中常见的一种用户交互方式,允许用户将本地的文件(例如图片)传输到服务器进行存储或处理。在JSP(JavaServer Pages)中,我们可以使用Servlet和Apache Commons FileUpload库来实现文件上传...
这个压缩包提供了一种实现方式,即“带进度条的上传源码”,通过AJAX技术实现无刷新的文件上传,极大地提升了用户体验。让我们详细了解一下这个源码的核心知识点。 首先,**AJAX (Asynchronous JavaScript and XML)...
本教程将探讨两种不同的客户端上传方式:原生JavaScript和jQuery AJAX。这两种方法都可以与Asp.Net WebApi结合,实现用户友好的文件上传功能。 首先,我们要理解Asp.Net WebApi的核心概念。WebApi是一个用于构建...
在本场景中,"asp+ajax批量上传文件"是指利用ASP技术和AJAX(Asynchronous JavaScript and XML)来实现用户无需刷新整个页面即可进行多文件批量上传的功能。这通常涉及到前端与后端的协同工作,提高用户体验,因为...
本教程将重点讲解如何在Java环境下,通过表单和Ajax两种方式实现文件及图片的上传,并提供了一个可以直接在Eclipse中导入并运行的示例项目。让我们深入探讨这两个方法。 首先,我们来看表单上传。在HTML中,我们...
AjaxUpload则是实现异步文件上传的一种JavaScript库,它允许用户在不刷新整个页面的情况下进行文件上传,提高了用户体验。接下来,我们将详细讨论这两个知识点。 首先,**Spring** 是一个全面的后端应用框架,它...
总之,Ajax+ASP无刷新上传文件支持大文件是一种高效且实用的解决方案,它结合了Ajax的异步特性与ASP的服务器端处理能力,既能优化用户体验,又能处理大文件的上传需求。开发者在实际应用中,可以根据项目需求灵活...
在IT行业中,SpringMVC和Ajax是两种广泛使用的技术,它们在构建现代Web应用程序时起着至关重要的作用。本教程将深入探讨如何结合SpringMVC和Ajax实现文件上传功能。 首先,SpringMVC是Spring框架的一部分,它是一个...
11. **packed_jquery.js**和**UpFile.js**:这两个文件是JavaScript库,packed_jquery.js可能是压缩版的jQuery库,用于简化DOM操作和Ajax请求;而UpFile.js可能是自定义的上传脚本,包含了文件选择、预处理、Ajax...
Ajax上传文件时,浏览器将文件分块发送,服务器接收并处理每个块,然后返回当前进度信息。前端通过监听XMLHttpRequest对象的progress事件,获取到已上传的数据量与总数据量,计算出当前进度,并更新进度条。 2. ...
在IT行业中,Ajax(Asynchronous JavaScript and XML)和FancyUpload是两种常见的文件上传技术,它们都致力于提供更优秀的用户体验,尤其是对于Web应用程序中的文件上传功能。Ajax上传允许用户在不刷新整个页面的...
ps:Ajax技术基本上可以说是由google公司带起来的,但少Gmail中上传文件用的还是 IFrame,所以说使用IFrame来上传文件是最好的选择。 我在这里这里用的技术是jsp,其实asp,php等也是一样可以这么实现的