如果您想了解AjaxUpLoad.js怎样实现文件上传和ajaxfileuploadjs的知识，那么本篇文章将是您的不二之选。我们将深入剖析AjaxUpLoad.js怎样实现文件上传的各个方面，并为您
如果您想了解AjaxUpLoad.js怎样实现文件上传和ajaxfileupload js的知识，那么本篇文章将是您的不二之选。我们将深入剖析AjaxUpLoad.js怎样实现文件上传的各个方面，并为您解答ajaxfileupload js的疑在这篇文章中，我们将为您介绍AjaxUpLoad.js怎样实现文件上传的相关知识，同时也会详细的解释ajaxfileupload js的运用方法，并给出实际的案例分析，希望能帮助到您！
本文目录一览：- AjaxUpLoad.js怎样实现文件上传（ajaxfileupload js）
- Ajax Upload多文件上传插件介绍 ( github上Api ) -- AjaxUpload上传超时提示.
- ajaxfileupload.js+SpringMVC实现文件上传
- ajaxfileupload.js实现文件上传（附步骤代码）
- ajaxfileupload.js实现文件异步上传
AjaxUpLoad.js怎样实现文件上传（ajaxfileupload js）
这次给大家带来AjaxUpLoad.js怎样实现文件上传，AjaxUpLoad.js实现文件上传的注意事项有哪些，下面就是实战案例，一起来看一下。AjaxUpload.js文件的代码，供大家参考，具体内容如下
/**
* 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 p = document.createElement('p');
return function (html) {
p.innerHTML = html;
var el = p.firstChild;
return p.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
* <p><input type='file' /></p>
*/
_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 p = document.createElement(p);
addStyles(p, {
'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 (p.style.opacity !== 0) {
if (typeof(p.filters) == 'undefined') {
throw new Error('Opacity not supported by the browser');
}
p.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';
});
p.appendChild(input);
document.body.appendChild(p);
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 p = self._input.parentNode;
copyLayout(self._button, p);
p.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
// p -> 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();
}
};
})();相信看了本文案例你已经掌握了方法，更多精彩请关注小编网其它相关文章！
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ajaxfileupload.js+SpringMVC实现文件上传
一、jsp页面
js下载 ：
http://download.csdn.net/detail/longtingjing/9725858
js引用：
<script src="/assets/js/jquery.min.js"></script> <script src="/js/ajaxfileupload.js"></script>
<div>
<div>
图片：
</div>
<div>
<div id="wait_loading"https://www.jb51.cc/tag/dis/" target="_blank">display:none;">
<div><img src="/imgs/loading.gif"/></div>
<br></br>
<div><span>请稍等...</span></div>
<br></br>
</div>
<input type="hidden" id="imgurl" name="imgurl" value="">
<img id="imgshow"https://www.jb51.cc/tag/dis/" target="_blank">display:none;" src=" "/>
<div>
<input type="file" id="file" name="file">
<input type="hidden" id="flag" name="flag" value="ajax文件上传"/>
<input type="button" id="btnUpload" onclick="ajaxFileUpload()" value="上传图片" />
</div>
</div>
js代码：
function ajaxFileUpload() {
// 开始上传文件时显示一个图片
$("#wait_loading").show();
var elementIds=["flag"]; //flag为id、name属性名
$.ajaxFileUpload({
url: '/confMana/upload.html',type: 'post',secureuri: false,//一般设置为false
fileElementId: 'file',// 上传文件的id、name属性名
dataType: 'json',//返回值类型，一般设置为json、application/json
elementIds: elementIds,//传递参数到服务器
success: function(data,status){
data= $.parseJSON( data );
if(data.success){
$("#wait_loading").hide();
$("#imgurl").val(data.data.imgurl);
$("#imgshow").attr("src",data.data.imgurl);
$("#imgshow").css("display","block");
alert("上传成功！");
}else{
$("#wait_loading").hide();
alert("上传失败！");
}
},error: function(data,status,e){
$("#wait_loading").hide();
alert("请求失败！");
}
});
}
二、conntroller
@RequestMapping(value="/confMana/upload.html",method = RequestMethod.POST)
public @ResponseBody String uploadForApp(HttpServletRequest request,@RequestParam("file") multipartfile file) throws IllegalStateException,IOException {
String relPathOfSavedDir="/uploads/app/";
try {
File savedDir = prepareSavedDir(request,relPathOfSavedDir);
String savedFileName=getSavedFileName(file.getoriginalFilename());
file.transferTo(new File(savedDir,savedFileName));
String imgurl=relPathOfSavedDir+savedFileName;
Map<String,Object> map=new HashMap<>();
map.put("imgurl",imgurl);
return toObjJson(map);
} catch (Exception e) {
return null;
}
}
private File prepareSavedDir(HttpServletRequest request,String relativePath) throws Exception{
File dir=new File(request.getSession().getServletContext().getRealPath(relativePath));
if(!dir.exists()){
if(!dir.mkdirs()){
throw new Exception("创建保存目录失败");
}
}
return dir;
}
private String getSavedFileName(String origFileName){
return RandomStringUtils.randomNumeric(8)+"."+FilenameUtils.getExtension(origFileName);
} 如果出现上传进不了success请参照：
http://blog.csdn.net/qq_32588349/article/details/52056283
ajaxfileupload.js实现文件上传（附步骤代码）
这次给大家带来ajaxfileupload.js实现文件上传（附步骤代码），ajaxfileupload.js实现文件上传的注意事项有哪些，下面就是实战案例，一起来看一下。
AjaxUpLoad.js的使用实现无刷新文件上传，如图
1、创建页面并编写HTML上传文档:
<p> <span><input></span> <input> <input> <input> </p>
登录后复制
上传图片:
<p> <img alt="ajaxfileupload.js实现文件上传（附步骤代码）" > <input> <input> <input> </p>
登录后复制
2、引用AjaxUpload.js文件
3、编写JS脚本
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>" + 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>";
}
//删除图片
function DelImg(img, hidPut) {
hidPut.value = "";
img.src = "/images/nophoto.gif";
}登录后复制
4、创建/Common/UploadHandler.ashx处理程序
using System;
using System.Web;
using System.Text.RegularExpressions;
using System.IO;
public class UploadHandler : IHttpHandler {
private string _filedir = ""; //文件目录
/// <summary>
/// 处理上传文件(1:文件格式不正确、2:文件大小不正确、3:上传失败、文件名称:上传成功)
/// </summary>
/// <param>
public void ProcessRequest (HttpContext context) {
_filedir = context.Server.MapPath(@"/file/temp/");
try
{
string result = "3";
string fileType = context.Request.QueryString["fileType"]; //获取上传文件类型
if (fileType == "file")
{
result = UploadFile(context); //文档上传
}
else if (fileType == "img")
{
result = UploadImg(context); //图片上传
}
context.Response.Write(result);
}
catch
{
context.Response.Write("3");//3文件上传失败
}
}
/// <summary>
/// 文档上传
/// </summary>
/// <param>
/// <returns></returns>
private string UploadFile(HttpContext context)
{
int cout = context.Request.Files.Count;
if (cout > 0)
{
HttpPostedFile hpf = context.Request.Files[0];
if (hpf != null)
{
string fileExt = Path.GetExtension(hpf.FileName).ToLower();
//只能上传文件，过滤不可上传的文件类型
string fileFilt = ".rar|.zip|.pdf|.pdfx|.txt|.csv|.xls|.xlsx|.doc|.docx......";
if (fileFilt.IndexOf(fileExt) 2097152)
{
return "2";
}
Random rd = new Random();
DateTime nowTime = DateTime.Now;
string newFileName = nowTime.Year.ToString() + nowTime.Month.ToString() + nowTime.Day.ToString() + nowTime.Hour.ToString() + nowTime.Minute.ToString() + nowTime.Second.ToString() + rd.Next(1000, 1000000) + Path.GetExtension(hpf.FileName);
if (!Directory.Exists(_filedir))
{
Directory.CreateDirectory(_filedir);
}
string fileName = _filedir + newFileName;
hpf.SaveAs(fileName);
return newFileName;
}
}
return "3";
}
/// <summary>
/// 图片上传
/// </summary>
/// <param>
/// <returns></returns>
private string UploadImg(HttpContext context)
{
int cout = context.Request.Files.Count;
if (cout > 0)
{
HttpPostedFile hpf = context.Request.Files[0];
if (hpf != null)
{
string fileExt = Path.GetExtension(hpf.FileName).ToLower();
//只能上传文件，过滤不可上传的文件类型
string fileFilt = ".gif|.jpg|.php|.jsp|.jpeg|.png|......";
if (fileFilt.IndexOf(fileExt) 204800)
{
return "2";
}
Random rd = new Random();
DateTime nowTime = DateTime.Now;
string newFileName = nowTime.Year.ToString() + nowTime.Month.ToString() + nowTime.Day.ToString() + nowTime.Hour.ToString() + nowTime.Minute.ToString() + nowTime.Second.ToString() + rd.Next(1000, 1000000) + Path.GetExtension(hpf.FileName);
if (!Directory.Exists(_filedir))
{
Directory.CreateDirectory(_filedir);
}
string fileName = _filedir + newFileName;
hpf.SaveAs(fileName);
return newFileName;
}
}
return "3";
}
#region IHttpHandler 成员
public bool IsReusable
{
get { throw new NotImplementedException(); }
}
#endregion
}登录后复制
附件1：页面CSS样式
/*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;}登录后复制
附件2：AjaxUpload.js文件
/**
* 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 p = document.createElement(''p'');
return function (html) {
p.innerHTML = html;
var el = p.firstChild;
return p.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
* <p><input></p>
*/
_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 p = document.createElement("p");
addStyles(p, {
''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 (p.style.opacity !== "0") {
if (typeof(p.filters) == ''undefined'') {
throw new Error(''Opacity not supported by the browser'');
}
p.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'';
});
p.appendChild(input);
document.body.appendChild(p);
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 p = self._input.parentNode;
copyLayout(self._button, p);
p.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></iframe>'');
// 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(''登录后复制
// 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:'''';";
});
},
/**
* 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
// p -> 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();
}
};
})();登录后复制
相信看了本文案例你已经掌握了方法，更多精彩请关注php中文网其它相关文章！
推荐阅读：
jQuery+ajax实现文件上传（附代码）
jQuery EasyUI插件怎么创建菜单链接按钮
以上就是ajaxfileupload.js实现文件上传（附步骤代码）的详细内容，更多请关注php中文网其它相关文章！
ajaxfileupload.js实现文件异步上传
html中：
var param = $("#inputForm").serialize();
url = $("#inputForm").attr("action");
$.ajaxFileUpload({
url: url,secureuri: false,fileElementId: 'biCardFile'
dataType: 'json',success: function (data,status) {
if (data.result == '0') {
layer.alert(data.resultMsg,1,function() {
$("#searchForm",window.parent.document).attr("action","${ctx}/merchant/merchantIdentity/");
$("#searchForm",window.parent.document).submit();
});
} else {
layer.alert(data.resultMsg);
}
},error: function (data,status,e) {
layer.alert("修改失败");
}
});
注意：form表单的提交方式method="post"；enctype="multipart/form-data"
另外：有童鞋修改js代码支持多文件异步上传，区别为fileElementId后面的参数
var param = $("#inputForm").serialize();
url = $("#inputForm").attr("action");
$.ajaxFileUpload({
url: url,fileElementId: ['biCardFile','taxCardFile','orgCardFile'],dataType: 'json',e) {
layer.alert("修改失败");
}
});
//修改前
//if(fileElement == null)
//oldElement = jQuery('#' + fileElementId[i]);
//else
//oldElement = fileElement;
//var newElement = jQuery(oldElement).clone();
//jQuery(oldElement).attr('id',fileId);
//jQuery(oldElement).before(newElement);
//jQuery(oldElement).appendTo(form);
//修改后
for(var i in fileElementId){
if(fileElement == null)
oldElement = jQuery('#' + fileElementId[i]);
else
oldElement = fileElement;
var newElement = jQuery(oldElement).clone();
jQuery(oldElement).attr('id',fileId);
jQuery(oldElement).before(newElement);
jQuery(oldElement).appendTo(form);
}
修改位置大概40行左右
ajaxfileupload修改前后对比
另外，dataType=“json”可能导致不管请求成功或失败都会回调error。因为返回的json字符串被包装为<pre>json</pre>。
解决方法为：
//修改前 //eval( "data = " + data ); //修改后 data = jQuery.parseJSON(jQuery(data).text());
修改位置大概215行左右
修改版本ajaxfileupload.js下载
关于AjaxUpLoad.js怎样实现文件上传和ajaxfileupload js的问题就给大家分享到这里，感谢你花时间阅读本站内容，更多关于Ajax Upload多文件上传插件介绍 ( github上Api ) -- AjaxUpload上传超时提示.、ajaxfileupload.js+SpringMVC实现文件上传、ajaxfileupload.js实现文件上传（附步骤代码）、ajaxfileupload.js实现文件异步上传等相关知识的信息别忘了在本站进行查找喔。
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