Jquery和BigFileUpload实现大文件上传及进度条显示

<script src="../../common/js/jquery-1.2.6.pack.js" type="text/javascript"></script> <script src="../../common/jqControl/packed/ui.core.packed.js" type="text/javascript"></script> <!--FORM--> <script src="../../common/jqControl/ajax/jquery.form.js" type="text/javascript"></script> <!--上传文件--> <script src="../../common/jqControl/upLoad/jquery.MultiFile.pack.js" type="text/javascript"></script> <!--进度条--> <script src="../../common/jqControl/packed/ui.progressbar.packed.js" type="text/javascript"></script> <!--对话框--> <!--我的JS --> <link href="../../common/Css/jquery-ui-themeroller.css" rel="stylesheet" type="text/css" /> <script src="../gadget/JS/uploadfile.js" type="text/javascript"> 

$(function() { var info = '<div style="display:none" id="uploadinfo">'; info += '<p>正在上传: <span id="uploadfilename"></span></p>'; info += '<p>上传速度: <span id="uploadrate"></span> </p>'; info += '<p>状态: <span id="uploadtitle"></span></p>'; info += '<p>预计剩余时间: <span id="uploadlefttime"></span></p>'; info += '<p>上传文件大小: <span id="uploadtotal"></span></p>'; info += '<p>已上传大小: <span id="uploadcurrent"></span></p>'; info += '<p><div id="uploadprogressbar"></div></p>'; info += '</div><div id="dialogsucc" > '; $("body").append(info); //进度条 $("#uploadprogressbar").progressbar(); //上传 $('#fileupload').MultiFile(); $('#btshow').click(function() { alert($("body").html()); }); //提交 $('#btnsubmit').click(function() { $("#uploadForm").ajaxSubmit( { dataType: 'text', beforeSubmit: function(a,f,o) { startProgress(); }, async:false, success: function(data) { //$("#dialogsucc").text(data); //stopProgress(); if(data.succ==1) { /* $("#dialogsucc").show(); $("#dialogsucc").dialog( { modal: true, overlay: { opacity: 0.5, background: "black" } }); */ } }, error:function(err) { alert(err); } }); }); }); function getProgress(){ $.ajax({ type: "post", dataType:"json", url: "uploadProgress.aspx", data: "UploadID=" + $("#UploadID").val(), success: function(data){ $("#uploadprogressbar").progressbar("progress", data.percent); $("#uploadfilename").html(data.filename); $("#uploadrate").html(data.rate); $("#uploadtitle").html(data.info); $("#uploadlefttime").html(data.lefttime); $("#uploadtotal").html(data.total); $("#uploadcurrent").html(data.current); if(data.succ==-1){ alert(data.errmsg); } if (data.succ==0){ setTimeout("getProgress()", 1000); } if (data.succ==1){ return; } }, error:function(msg) { alert(msg); } }); } function startProgress(){ $("#uploadinfo").show(); setTimeout("getProgress()", 500); } function stopProgress() { $("#uploadinfo").hide(); } 

protected void Page_Load(object sender, EventArgs e) { try { string s = "{"; UploadContext upload = UploadContextFactory.GetUploadContext(Request["UploadID"]); //初始化 if (upload.Status == uploadStatus.Initializing) { s += responeJSON(upload, "0", ""); } if (upload.Status == uploadStatus.Uploading) { s += responeJSON(upload, "0", ""); } if (upload.Status == uploadStatus.Complete) { s += responeJSON(upload, "1", ""); } if (upload.Status == uploadStatus.HasError) { s += responeJSON(upload, "-1", ""); } s += "}"; Response.Write(s); } catch (Exception err) { //throw err; Response.Write("{'info':'" + err.Message.Replace("'", "") + "','succ':-1}"); } } private string responeJSON(UploadContext upload, string succ,string errmsg) { string s = ""; s += "'info':'" + upload.FormatStatus + "'" ; s += ",'percent':'" + Convert.ToInt32((upload.Readedlength * 100.0 / upload.TotalLength)).ToString() + "'"; s += ",'current':'" + (upload.Readedlength/1024).ToString() + "KB'"; s += ",'total':'" + (upload.TotalLength/1024).ToString() + "KB'"; s += ",'rate':'" + upload.FormatRatio + "'"; s += ",'filename':'" + upload.CurrentFile + "'"; s += ",'cancel_upload':" + 0 ; s += ",'lefttime':'" + upload.LeftTime + "'"; s += ",'succ':" + succ; s += ",'errmsg':'" + errmsg +"'"; return s; }