定义ajaxFileUpload.js
创建ajaxUpload.js文件
(function (factory) {
if (typeof define === 'function') {
// 如果define已被定义，模块化代码
define('ajaxUpload', ['lib/jquery'], function (require, exports, moudles) {
factory(require('lib/jquery')); // 初始化插件
return jQuery; // 返回jQuery
});
} else {
// 如果define没有被定义，正常执行jQuery
factory(jQuery);
}
}(function ($) {
jQuery = $;
console.log('init');
$.extend({
createUploadIframe: function (id, uri) {
//create frame
var frameId = 'jUploadFrame' + id;
if (window.ActiveXObject) {
if (jQuery.browser.version == "9.0") {
io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
} else if (jQuery.browser.version == "6.0" || jQuery.browser.version == "7.0" || jQuery.browser.version == "8.0") {
var io = document.createElement('<iframe id="' + frameId + '" name="' + frameId + '" />');
if (typeof uri == 'boolean') {
io.src = 'javascript:false';
}
else if (typeof uri == 'string') {
io.src = uri;
}
}
}
else {
var io = document.createElement('iframe');
io.id = frameId;
io.name = frameId;
}
io.style.position = 'absolute';
io.style.top = 'px';
io.style.left = 'px';
document.body.appendChild(io);
return io;
},
createUploadForm: function (id, fileElementId) {
//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>');
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', 'px');
jQuery(form).css('left', 'px');
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 = s.fileElementId;
var form = jQuery.createUploadForm(id, s.fileElementId);
var io = jQuery.createUploadIframe(id, s.secureuri);
var frameId = 'jUploadFrame' + id;
var formId = 'jUploadForm' + id;
if (s.global && !jQuery.active++) {
// Watch for a new set of requests
jQuery.event.trigger("ajaxStart");
}
var requestDone = false;
// Create the request object
var xml = {};
if (s.global) {
jQuery.event.trigger("ajaxSend", [xml, s]);
}
var uploadCallback = function (isTimeout) {
// Wait for a response to come back
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 (s.success) {
// ifa local callback was specified, fire it and pass it the data
s.success(data, status);
}
;
if (s.global) {
// Fire the global callback
jQuery.event.trigger("ajaxSuccess", [xml, s]);
}
;
} else {
jQuery.handleError(s, xml, status);
}
} catch (e) {
status = "error";
jQuery.handleError(s, xml, status, e);
}
;
if (s.global) {
// The request was completed
jQuery.event.trigger("ajaxComplete", [xml, s]);
}
;
// Handle the global AJAX counter
if (s.global && !--jQuery.active) {
jQuery.event.trigger("ajaxStop");
}
;
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);
}
}, );
xml = null;
}
;
}
// Timeout checker
if (s.timeout > ) {
setTimeout(function () {
if (!requestDone) {
// Check to see ifthe request is still happening
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) {
form.encoding = 'multipart/form-data';
}
else {
form.enctype = 'multipart/form-data';
}
jQuery(form).submit();
} catch (e) {
jQuery.handleError(s, xml, null, e);
}
if (window.attachEvent) {
document.getElementById(frameId).attachEvent('onload', uploadCallback);
}
else {
document.getElementById(frameId).addEventListener('load', uploadCallback, false);
}
return {
abort: function () {
}
};
},
uploadHttpData: function (r, type) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// ifthe type is "script", eval it in global context
if (type == "script") {
jQuery.globalEval(data);
}
// Get the JavaScript object, ifJSON is used.
if (type == "json") {
eval("data = " + data);
}
// evaluate scripts within html
if (type == "html") {
jQuery("<div>").html(data).evalScripts();
}
return data;
}
});
}));
配置seaJS参数
seajs.config({
charset: 'utf-8',
timeout: * * ,
debug: ,
alias: {
},
map: [['lib/jquery', 'lib/jquery.js?max_age=2530900&ver=201409678'],
['ajaxUpload', 'lib/ajaxUpload.js?max_age=2530900&ver=201409678']]
});
页面加载seaJS
seajs.use([ 'lib/jquery','ajaxUpload'], function($) {
});
调用上传函数
function importClick(){
$.ajaxFileUpload({
url:"${pageContext.request.contextPath}/import.do",
secureuri: false,
fileElementId:"uploadFile",
dataType: 'text',
type:"POST",
success: function (data, status){
},
error: function (data, status, e){
}
});
}
页面代码
![捉 虫 历 险 记[图]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)