ajaxfileupload带参数上传文件

jQuery.extend({

createUploadIframe:function(id,uri)

{

//createframe

varframeId='jUploadFrame'+id;

if(window.ActiveXObject){

vario=document.createElement('<iframeid="'+frameId+'"name="'+frameId+'"/>');

if(typeofuri=='boolean'){

io.src='javascript:false';

}

elseif(typeofuri=='string'){

io.src=uri;

}

}

else{

vario=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);

returnio

},

createUploadForm:function(id,fileElementId,data)

{

//createform

varformId='jUploadForm'+id;

varfileId='jUploadFile'+id;

varform=$('<formaction=""method="POST"name="'+formId+'"id="'+formId+'"enctype="multipart/form-data"></form>');

varoldElement=$('#'+fileElementId);

varnewElement=$(oldElement).clone();

$(oldElement).attr('id',fileId);

$(oldElement).before(newElement);

$(oldElement).appendTo(form);

//增加文本参数的支持

if(data){

for(variindata){

$('<inputtype="hidden"name="'+i+'"value="'+data[i]+'"/>').appendTo(form);

}

}

//setattributes

$(form).css('position','absolute');

$(form).css('top','-1200px');

$(form).css('left','-1200px');

$(form).appendTo('body');

returnform;

},

ajaxFileUpload:function(s){

//TODOintroduceglobalsettings,allowingtheclienttomodifythemforallrequests,notonlytimeout

s=jQuery.extend({},jQuery.ajaxSettings,s);

varid=newDate().getTime()

varform=jQuery.createUploadForm(id,s.fileElementId,s.data);

vario=jQuery.createUploadIframe(id,s.secureuri);

varframeId='jUploadFrame'+id;

varformId='jUploadForm'+id;

//Watchforanewsetofrequests

if(s.global&&!jQuery.active++)

{

jQuery.event.trigger("ajaxStart");

}

varrequestDone=false;

//Createtherequestobject

varxml={}

if(s.global)

jQuery.event.trigger("ajaxSend",[xml,s]);

//Waitforaresponsetocomeback

varuploadCallback=function(isTimeout)

{

vario=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;

}elseif(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;

varstatus;

try{

status=isTimeout!="timeout"?"success":"error";

//Makesurethattherequestwassuccessfulornotmodified

if(status!="error")

{

//processthedata(runsthexmlthroughhttpDataregardlessofcallback)

vardata=jQuery.uploadHttpData(xml,s.dataType);

//Ifalocalcallbackwasspecified,fireitandpassitthedata

if(s.success)

s.success(data,status);

//Firetheglobalcallback

if(s.global)

jQuery.event.trigger("ajaxSuccess",s]);

}else

jQuery.handleError(s,status);

}catch(e)

{

status="error";

jQuery.handleError(s,status,e);

}

//Therequestwascompleted

if(s.global)

jQuery.event.trigger("ajaxComplete",s]);

//HandletheglobalAJAXcounter

if(s.global&&!--jQuery.active)

jQuery.event.trigger("ajaxStop");

//Processresult

if(s.complete)

s.complete(xml,status);

jQuery(io).unbind()

setTimeout(function()

{try

{

$(io).remove();

$(form).remove();

}catch(e)

{

jQuery.handleError(s,e);

}

},100)

xml=null

}

}

//Timeoutchecker

if(s.timeout>0)

{

setTimeout(function(){

//Checktoseeiftherequestisstillhappening

if(!requestDone)uploadCallback("timeout");

},s.timeout);

}

try

{

//vario=$('#'+frameId);

varform=$('#'+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,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){

vardata=!type;

data=type=="xml"||data?r.responseXML:r.responseText;

//Ifthetypeis"script",evalitinglobalcontext

if(type=="script")

jQuery.globalEval(data);

//GettheJavaScriptobject,ifJSONisused.

if(type=="json")

eval("data="+data);

//evaluatescriptswithinhtml

if(type=="html")

jQuery("<div>").html(data).evalScripts();

//alert($('param',data).each(function(){alert($(this).attr('value'));}));

returndata;

}

})

$.ajaxFileUpload({

url:'/ajax/mine/uploadLogo',

secureuri:false,

fileElementId:'input_logo',

dataType:'json',

data:{//加入的文本参数

"logoPath":"param1",

"logoName":"param2"

},

success:function(data){

},

error:function(){

showError("上传失败，请检查文件是否符合格式要求。");

}

});