• 用jquery uploadify上传插件上传文件


     public void ProcessRequest(HttpContext context)
        {
            string esOIDs = System.Web.HttpContext.Current.Request["esOIDs"];
            string userID=System.Web.HttpContext.Current.Session["USER_ID"].ToString();
            
            context.Response.ContentType = "text/plain";
            context.Response.Charset = "utf-8";
    
            HttpPostedFile file = context.Request.Files["Filedata"];
            string Path = HttpContext.Current.Server.MapPath(@context.Request["folder"]) + "\AccessoryFiles";
            
            if (!Directory.Exists(Path))//判断文件是否存在
            {
                Directory.CreateDirectory(Path);
            }
    
            if (file != null)
            {
                if (file.ContentLength <= 1024 * 1024 * 1024)//限定文件小于100M
                {
                    bool fileOK = false;
                    string fileExtension = System.IO.Path.GetExtension(file.FileName).ToLower(); //得到选择文件 扩展名
    
                    string[] allowedExtensions = { ".doc", ".docx", ".ppt", ".pptx", ".xls", ".xlsx", ".pdf",".wmv",".avi", ".gif", ".png", ".bmp", ".jpg", ".mp4", ".rar", ".zip" }; //可上传文件类型列表
                    for (int i = 0; i < allowedExtensions.LongLength; i++)//判断上传文件是否为上述合法类型
                    {
                        if (fileExtension == allowedExtensions[i])
                        {
                            fileOK = true;
                            break;
                        }
                    }
    
                    if (fileOK == true)//如果文件格式正确
                    {
                        string uploadPath = Path + "\" + esOIDs;
                        if (!Directory.Exists(uploadPath))//判断文件是否存在
                        {
                            Directory.CreateDirectory(uploadPath);
                        }
    
                        string fileNewName = DateTime.Now.ToString("yyyyMMddHHmmss") + System.IO.Path.GetExtension(file.FileName).ToLower();
                        file.SaveAs(uploadPath + "\" + fileNewName);
    
                        if (!Directory.Exists(uploadPath + "\" + fileNewName))
                        {
                            AccessoryObj accessoryObj = new AccessoryObj();
                            accessoryObj.REFOID = esOIDs;
                            accessoryObj.ReftypeVal = AccessoryType.项目;
                            accessoryObj.FILENAME = file.FileName;
                            accessoryObj.FILETYPE = fileExtension;
                            accessoryObj.FILEPATH = "FileUpLoad/AccessoryFiles/" + esOIDs + "/" + fileNewName;
                            accessoryObj.UPLOADUSER = userID;
                            accessoryObj.UPLOADDATE = DateTime.Now;
    
                            List<AccessoryObj> accList = new List<AccessoryObj>();
                            accList.Add(accessoryObj);
                            new AccessoryRepository().AddAccessoryObj(accList);
                        }
    
                        //下面这句代码缺少的话,上传成功后上传队列的显示不会自动消失
                        context.Response.Write("1");
                    }
                }
            }
            else
            {
                context.Response.Write("0");
            }
        }
    
        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    uploadhandler。ashx
    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="FileUpLoad.aspx.cs" Inherits="FileUpLoad" %>
    
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml">
     <head id="Head1" runat="server">   
      <title></title>   
    //去网上download一个jquery uploadify插件 ,这些文件都有
       <script src="../../Scripts/jquery/jquery.uploadify/jquery-1.3.2.min.js" type="text/javascript"></script>    
     <script src="../../Scripts/jquery/jquery.uploadify/jquery.uploadify.v2.1.0.min.js"         type="text/javascript"></script>     <script src="../../Scripts/jquery/jquery.uploadify/swfobject.js" type="text/javascript"></script>     <link rel="stylesheet" type="text/css" href="../../Scripts/jquery/jquery.uploadify/uploadify.css" />   
      
    <script type="text/javascript">      
       $(document).ready(function () {       
          $("#uploadify").uploadify({                
     'uploader': '../../Scripts/jquery/jquery.uploadify/uploadify.swf',             
        'script': 'UploadHandler.ashx?esOIDs=<%=esOIDs %>',             
        'cancelImg': '../../Scripts/jquery/jquery.uploadify/cancel.png',      
               'folder': '../../FileUpLoad/',         
            'queueID': 'fileQueue',            
         'auto': false,            
         'multi': true,               
      'buttonText': '',              
       'fileDesc' :'可选择类型:.doc/.rar/.docx/.ppt/.pptx/.xls/.xlsx/.pdf/.gif/.png/.bmp/.jpg/.mp4/.rar/.wmv/.avi/.zip',           
          'fileExt': '*.doc;*.rar;*.docx;*.ppt;*.pptx;*.xls; *.xlsx;*.pdf;*.gif;*.png;*.bmp;*.jpg;*.mp4;*.rar;*.wmv;*.avi;*.zip',                 'sizeLimit': 1024 * 1024 * 1024,             
        'buttonImg': '../../Scripts/jquery/jquery.uploadify/browse.png',     
                'height':'20',            
         'width': '50'            
     });       
      });
        </script> 
    </head> 
    <body>   
      <form id="form1" runat="server">    
     <div id="fileQueue" style="height: 400px">     </div>     
    <table>     
        <tr>          
       <td style="text-align: inherit">             
        <input type="file" name="uploadify" id="uploadify" onclick="return uploadify_onclick()" />     
                <input name="" onclick="javascript:$('#uploadify').uploadifyUpload()" type="button" style="height:20px"  value="上传" />             
        <input name="" onclick="javascript:$('#uploadify').uploadifyClearQueue()" type="button" style="height:20px"  value="取消上传" />        
         </td>        
     </tr>     
    </table>   
      </form>
     </body> </html>
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  • 原文地址:https://www.cnblogs.com/652769324qq/p/3935590.html
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