ajaxfileupload.js的简单使用

上传文件 未选择任何文件

 引入 <script src="../javaScript/ajaxfileupload.js"></script> 

<button class="btn btn-success" id="upload">上传文件</button>
 <input type="file" id="btnUpload" name="file" accept=".xls,.xlsx" style="display: none;" />
 <input type="hidden" id="filepath" />
<input type="hidden" id="filename" />
<span id="uploadfilename">未选择任何文件</span></li>

 参考：http://www.cnblogs.com/kissdodog/archive/2012/12/15/2819025.html 

        $("#upload").bind("click", function () {
            //选择上传文件
            $("#btnUpload").click();
        });


                $("#btnUpload").live("change", function () {
            $.ajaxFileUpload({
                url: '/UploadFiles.aspx', //用于文件上传的服务器端请求地址
                secureuri: false, //一般设置为false
                fileElementId: 'btnUpload', //文件上传空间的id属性  <input type="file" id="file" name="file" />
                dataType: 'json', //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
                {
                    $("#filepath").val(data.filepath);
                    $("#filename").val(data.filename);
                    $("#uploadfilename").html(data.filename);
                    $("#btnUpload").val("");
                },
                error: function (data, status, e) //服务器响应失败处理函数
                {
                    alert(e);
                }
            })
        });

    public partial class UploadFiles : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            var files = Request.Files;
            string msg = string.Empty;
            string error = string.Empty;
            string filepath;
            string urlpath = HttpContext.Current.Request.Url.Host;
            string uploadurl = Server.MapPath("/") + "Tempalte\upload\";//files[0].FileName.Split('.')[files[0].FileName.Split('.').Length-1]
            //string fname = DateTime.Now.ToString("yyMMdHHmmssfff") + System.IO.Path.GetFileName(files[0].FileName);
            string fname = DateTime.Now.ToString("yyMMdHHmmssfff") + System.IO.Path.GetExtension(files[0].FileName);
            if (!Directory.Exists(uploadurl))
            {
                Directory.CreateDirectory(uploadurl);
            }
            if (files.Count > 0)
            {
                files[0].SaveAs(uploadurl + fname);
                msg = " 成功! 文件大小为:" + files[0].ContentLength;
                filepath = "/Tempalte/upload/" + fname;
                string res = "{ error:'" + error + "', msg:'" + msg + "',filename:'" + files[0].FileName + "',filepath:'" + filepath + "'}";
                Response.Write(res);
                Response.End();
            }
        }
    }