ajaxfileupload.js
<input type="file id=“file1” name=“file” οnchange="ajaxfileupload(“要上传图片的区域”)” />
function ajaxFileUpload() {
$.ajaxFileUpload({
url: apiHost + ‘/uploadfilestreamiOS.aspx?Filepath=1.png&IsFLM=false&UserCode=1&ExName=png’, //用于文件上传的服务器端请求地址
secureuri: false, //是否需要安全协议，一般设置为false
fileElementId: ‘file1’, //文件上传域的ID
dataType: ‘text’, //返回值类型 一般设置为json
success: function(data, status) //服务器成功响应处理函数
{
var str = eval("(" + data.split("}")[0] + "}" + ")");
if(str.Success == "1") {
var _imgUrl = str.URL;
/* $(".simditor-body").html($(".simditor-body").html() + "<p><img id='woyu' class='myimg' src='" + _imgUrl + "' style='max-width:800px;height:auto;'/></p>"); //把图片添加到文本域中
//
_editor.sync(); //将编辑器的正文内容同步到 textarea 元素的 val 属性，返回值为编辑器正文的 HTML 内容。
$("#mmb").css("display","none");
alert("成功啦") */
if($(".simditor-body .child_text").first().text()==""){
$(".simditor-body .child_text").first().remove();
}
var _imgUrl = str.URL;
var isMyImg="<img style='width:265px;margin-left: 5px;cursor: pointer;' onclick='window.open(\"" + _imgUrl + "\")' src=" + _imgUrl + " />";
if($(".simditor-body .Miniu:last").find("img").length>2||$(".simditor-body .miniu:last").find("img").length==0){
$(".simditor-body ").APPend('<p class="miniu">'+isMyImg+'</p>');
}else{
$(".simditor-body").find(".miniu:last").append(isMyImg);
}
}
},
ERROR: function(data, status, e) //服务器响应失败处理函数
{
alert(e);
}
});
return false;
}
如下是ajaxFileUpload.js
jQuery.extend({
createUploadIframe: function(id, uri)
{
//create frame
var frameId = 'jUploadFrame' + id;
if(window.ActiveXObject) {
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 = '-1000px';
io.style.left = '-1000px';
document.body.appendChild(io);
return io
},
createUploadForm: function(id, fileElementId)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = $('<form action="" method="POST" name="' + formId + '" id="' + formId + '" enctype="multipart/form-data"></form>');
var oldElement = $('#' + fileElementId);
var newElement = $(oldElement).clone();
$(oldElement).attr('id', fileId);
$(oldElement).before(newElement);
$(oldElement).appendTo(form);
//set attributes
$(form).css('position', 'absolute');
$(form).css('top', '-1200px');
$(form).css('left', '-1200px');
$(form).appendTo('body');
return form;
},
addOtherrequestsToForm: function(form,data)
{
// add extra parameter
var originalElement = $('<input type="hidden" name="" value="">');
for (var key in data) {
name = key;
value = data[key];
var cloneElement = originalElement.clone();
cloneElement.attr({'name':name,'value':value});
$(cloneElement).appendTo(form);
}
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);
if ( s.data ) form = jQuery.addOtherRequestsToForm(form,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
{
$(io).remove();
$(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 io = $('#' + frameId);
var form = $('#' + formId);
$(form).attr('action', s.url);
$(form).attr('method', 'POST');
$(form).attr('target', frameId);
if(form.encoding)
{
form.encoding = 'multipart/form-data';
}
else
{
form.enctype = 'multipart/form-data';
}
$(form).submit();
} catch(e)
{
jQuery.handleError(s, xml, null, e);
}
if(window.attachevent){
document.getElementById(frameId).attachEvent('onload', uploadCallback);
}
else{
document.getElementById(frameId).addeventlistener('load', uploadCallback, false);
}
return {abort: function () {}};
},
uploadHttpData: function( r, type ) {
var data = !type;
data = type == "xml" || data ? r.responseXML : r.responseText;
// If the type is "script", eval it in global context
if ( type == "script" )
jQuery.globalEval( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
{
// If you add mimetype in your response,
// you have to delete the '<pre></pre>' tag.
// The pre tag in Chrome has attribute, so have to use regex to remove
var data = r.responseText;
var rx = new RegExp("<pre.*?>(.*?)</pre>","i");
var am = rx.exec(data);
//this is the desired data extracted
var data = (am) ? am[1] : ""; //the only submatch or empty
eval( "data = " + data );
}
// evaluate scripts within html
if ( type == "html" )
jQuery("<p>").html(data).evalScripts();
//alert($('param', data).each(function(){alert($(this).attr('value'));}));
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] );
}
}
})
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