做web应用经常需要上传。
所以，ajax上传经常要用到。
分享个jquery的ajax上传组件ajaxfileupload。
用法很简单：
代码如下
<script src="/js/jquery-1.8.3.min.js"></script>
<script src="/js/ajaxfileupload.js"></script>
javascript：upload()">上传
<script type="text/javascript">
function upload(){
$.ajaxFileUpload ({
ckeditor/" target="_blank">fckeditor/editor/"/upload.html"">url:"/upload.html",
fileElementId:"fileInput",
success: function (data, status)
{
alert("success");
alert(data);
},
error: function (data, status, e)
{
alert("error");
alert(e);
}
})
}
</script>
/upload.html其实就是一般的上传路径而已。
当然，有时用新的jquery的时候，会报handleError异常。
没关系，是新jquery去掉了这个方法而已，我们在组件后面加一个就可以了。
代码如下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] );
}
}
就这么简单。
修改后的组件代码哪下
代码如下jQuery.extend({
createUploadIframe: function(id, uri)
{
//create frame
var frameId = "jUploadFrame" + id;
var iframeHtml = "<iframe id="" + frameId + "" name="" + frameId + "" style="position:absolute; top:-9999px; left:-9999px"";
{
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(0);
},
createUploadForm: function(id, fileElementId, data)
{
//create form
var formId = "jUploadForm" + id;
var fileId = "jUploadFile" + id;
var form = jQuery("
if(data)
{
for(var i in data)
{
jQuery("").appendTo(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", "-1200px");
jQuery(form).css("left", "-1200px");
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 = new Date().getTime()
var form = jQuery.createUploadForm(id, s.fileElementId, (typeof(s.data)=="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(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
{
jQuery(io).remove();
jQuery(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 form = jQuery("#" + formId);
jQuery(form).attr("action", s.url);
jQuery(form).attr("method", "POST");
jQuery(form).attr("target", frameId);
if(form.encoding)
{
jQuery(form).attr("encoding", "multipart/form-data");
}
else
{
jQuery(form).attr("enctype", "multipart/form-data");
}
jQuery(form).submit();
} catch(e)
{
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( data );
// Get the JavaScript object, if JSON is used.
if ( type == "json" )
eval( "data = " + data );
// evaluate scripts within html
if ( type == "html" )
jQuery("").html(data).evalScripts();
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] );
}
}
})
[简单的jquery]简单的jquery ajax上传插件ajaxfileupload
http://m.bbyears.com/wangyezhizuo/50225.html
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