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适用于jquery1.11.1的ajaxfileupload.js

ajaxfileupload源码

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减轻高版本jquery包容性难点

jQuery.extend({

createUploadIframe: function
{
//create frame
var frameId = 'jUploadFrame' + id;
var iframeHtml = '<iframe 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;
},
createUploadForm: function(id, fileElementId, data)
{
//create form
var formId = 'jUploadForm' + id;
var fileId = 'jUploadFile' + id;
var form = jQuery('<form action="" method="POST" name="' + formId + '" enctype="multipart/form-data"></form>');
if
{
for(var i in data)
{
jQuery('<input type="hidden" name="' + i + '" value="' + data[i] + '" />').appendTo;
}
}
var oldElement = jQuery('#' + fileElementId);
var newElement = oldElement.clone;
newElement[0].files = oldElement[0].files;
oldElement.attr('id', fileId);
oldElement.before(newElement);
oldElement.appendTo;

//set attributes
jQuery.css('position', 'absolute');
jQuery.css('top', '-1200px');
jQuery.css('left', '-1200px');
jQuery.appendTo;
return form;
},

ajaxFileUpload: function {
// 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=='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;
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
{
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
{
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.unbind()

setTimeout(function()
{ try
{
jQuery.remove();
jQuery.remove();

} catch
{
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.attr('action', s.url);
jQuery.attr('method', 'POST');
jQuery.attr('target', frameId);
if(form.encoding)
{
jQuery.attr('encoding', 'multipart/form-data');
}
else
{
jQuery.attr('enctype', 'multipart/form-data');
}
jQuery.submit();

} catch
{
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;
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
data = data.replace("<pre>", "").replace("</pre>", "");
// evaluate scripts within html
if ( type == "html" )
jQuery("<div>").html.evalScripts();

return data;
}
})

附html代码和服务端代码

<input type="file" name="importFile" accept="text/plain" style="display: none" />

#region 上传文件 读取导入的内容
public JsonResult Upload()
{
HttpFileCollectionBase hfc = Request.Files;
string Path = "";
List<LgtdAndLttd> list = new List<LgtdAndLttd>();
string PhysicalPath = "";
if (hfc.Count > 0)
{
if (hfc[0].FileName.Contains
{
int index = hfc[0].FileName.LastIndexOf;
Path = "/Upload" +hfc[0].FileName.Substring(index, hfc[0].FileName.Length - index);
}
else
Path = "/Upload/" + System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:ffff") + System.IO.Path.GetFileName(hfc[0].FileName);
PhysicalPath = Server.MapPath;
hfc[0].SaveAs(PhysicalPath);
StreamReader sr = new StreamReader(PhysicalPath);
LgtdAndLttd sta = new LgtdAndLttd();
while>=0)
{
sta.LGTD = sr.ReadLine().Split[0];
sta.LTTD = sr.ReadLine().Split[1];
list.Add;
}
}
return Json;
}
#endregion

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