C# 多文件同时上传

HTML

特别要注意的是这行代码

 

< form  id ="Form1"  method ="post"  runat ="server"  enctype ="multipart/form-data" >

 

<% ... @ Page language="c#" Codebehind="MultiFileUp.aspx.cs" AutoEventWireup="false" Inherits="Vista.Project.MultiFileUp"  %>
<% ... @ Register TagPrefix="uc1" TagName="pageHead" Src="../Head/pageHead.ascx"  %>
<! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"  >
< HTML >
     < HEAD >
         < title > MultiFileUp </ title >
         < script  lang ="JavaScript" > ...
        function addFile()
        ...{
         var str = '<input type="file" size="50" Name="File">'
         document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)
        }        
         </ script >
         < meta  name ="GENERATOR"  Content ="Microsoft Visual Studio .NET 7.1" >
         < meta  name ="CODE_LANGUAGE"  Content ="C#" >
         < meta  name ="vs_defaultClientScript"  content ="JavaScript" >
         < meta  name ="vs_targetSchema"  content ="http://schemas.microsoft.com/intellisense/ie5" >
         < LINK  href ="../StyleSheet1.css"  type ="text/css"  rel ="stylesheet" >
     </ HEAD >
     < body >
         < form  id ="Form1"  method ="post"  runat ="server"  enctype ="multipart/form-data" >
             < FONT  face ="宋体" >
                 < P >
                     < uc1:pageHead  id ="PageHead1"  runat ="server" ></ uc1:pageHead ></ P >
                 < div  class ="tdT" > &nbsp; 多文件同时上载 </ div >
                 < div  class ="divtit"  id ="MyFile" >< INPUT  type ="file"  name ="File"  size ="50" ></ div >
                 < br >
                 < DIV  class ="tdT" > &nbsp;&nbsp;   < INPUT  type ="button"  value ="增加(Add)"  onclick ="addFile()" > &nbsp;&nbsp;&nbsp;
                     < asp:Button  id ="btUp"  runat ="server"  Text ="开始上载" ></ asp:Button > &nbsp;&nbsp;&nbsp;
                     < INPUT  type ="button"  value ="重置(ReSet)"  onclick ="this.form.reset()" ></ DIV >
                 < DIV  class ="tdT" > &nbsp; </ DIV >
                 < DIV  class ="tdT" >
                     < asp:Label  id ="upmessage"  runat ="server" ></ asp:Label ></ DIV >
             </ FONT >
         </ form >
     </ body >
</ HTML >

 

.CS

 

using  System;
using  System.Collections;
using  System.ComponentModel;
using  System.Data;
using  System.Drawing;
using  System.Web;
using  System.Web.SessionState;
using  System.Web.UI;
using  System.Web.UI.WebControls;
using  System.Web.UI.HtmlControls;
using  System.Text;
using  System.IO;
using  System.Configuration;
using  System.Data.SqlClient;

namespace  Vista.Project
... {
    /**//// <summary>
    /// MultiFileUp 的摘要说明。
    /// </summary>
    public class MultiFileUp : System.Web.UI.Page
    ...{
        protected System.Web.UI.WebControls.Button btUp;
        private readonly string SQLCONNECTIONSTRING = ConfigurationSettings.AppSettings["SQLCONNECTIONSTRING"].ToString();
        protected System.Web.UI.WebControls.Label upmessage;

    
        private void Page_Load(object sender, System.EventArgs e)
        ...{
            // 在此处放置用户代码以初始化页面
        }

        private void GetupFile(string iUrl)
        ...{
            SqlConnection conn = new SqlConnection(SQLCONNECTIONSTRING);
            string strCom = "insert into UpFile (FileUrl) values ('" + iUrl +"')";
            SqlCommand comm = new SqlCommand(strCom,conn);
            //定义访问数据库的类型为存储过程
            try ...{ conn.Open();}
            catch (Exception ex)...{throw new Exception("数据库连接失败！",ex);}

            try ...{ comm.ExecuteNonQuery();}
            catch (Exception ex)...{throw new Exception("数据库连接失败！",ex);}
            }

        private void MultiFileUpload()
        ...{
            HttpFileCollection fileList = HttpContext.Current.Request.Files;
            //存放上载文件的操作消息
            StringBuilder uploadMessage = new StringBuilder("当前上载的文件分别是：<hr color=red>");
            int fileIndex = 0;

            try 
            ...{
                for (fileIndex = 0;fileIndex < fileList.Count;fileIndex++)
                ...{
                    //获取当前上载的文件
                    HttpPostedFile postedFile = fileList[fileIndex];
                    string fileName;
                    string fileExtension;

                    //获取上载文件的文件名称
                    fileName = Path.GetFileName(postedFile.FileName);
                    if (fileName != null)
                    ...{
                        fileExtension = Path.GetExtension(fileName);
                        uploadMessage.Append("上载的文件类型："+ postedFile.ContentType.ToString()+"<br>");
                        uploadMessage.Append("客户端文件地址：" + postedFile.FileName + "<br>" );
                        uploadMessage.Append("上载文件的文件名：" + fileName + "<br>" );
                        uploadMessage.Append("上载文件的扩展名：" + fileExtension + "<br>" );
                        postedFile.SaveAs(MapPath("Photo/") + fileName);
                        GetupFile(fileName);
                    }
                }
                upmessage.Text = uploadMessage.ToString();
            }
            catch (Exception ex)
            ...{
                upmessage.Text = ex.Message;
            }            
        }

        Web 窗体设计器生成的代码#region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        ...{
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }
        
        /**//// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        ...{    
            this.btUp.Click += new System.EventHandler(this.btUp_Click);
            this.Load += new System.EventHandler(this.Page_Load);

        }
        #endregion

        private void btUp_Click(object sender, System.EventArgs e)
        ...{
            MultiFileUpload();
        
        }
    }
}