ASP.NET 2.0中怎么上传照片啊？急！

Question

在VS2005开发平台上 怎么利用HTML 中的input（file）控件传照片到数据库啊？别的方法也中~

Answer 1

 private string UploadPicFile(System.Web.UI.HtmlControls.HtmlInputFile Fupload)
    {
        //文件上传
        try
        {
            if (Fupload.PostedFile.FileName == "")
                return "";
            string dir = DateTime.Now.ToString("yyyy");
            if (!Directory.Exists(Server.MapPath("uploadpic")))
            {
                Directory.CreateDirectory(Server.MapPath("uploadpic"));
                if (!Directory.Exists(Server.MapPath("uploadpic")))
                    return "";
            }
            Random rd = new System.Random();
            string filename;
            string extname;            if (Fupload.PostedFile.FileName != "")
            {
                extname = Fupload.PostedFile.FileName.Substring(Fupload.PostedFile.FileName.LastIndexOf(".") + 1).ToUpper();
                if ("JPG".IndexOf(extname) == -1)
                {
                    return "";
                }                filename = dir + "\\" + DateTime.Now.ToString("yyyyMMddhhmmss") + rd.Next(1000).ToString() + "." + extname;
                string mfileExtension = System.IO.Path.GetExtension(filename);
                Fupload.PostedFile.SaveAs(Server.MapPath("uploadpic\\") + filename);
                return "uploadpic\\" + filename;
            }
            return "";        }
        catch { return ""; }
    }

Answer 2

                          <input id="File2" type="file" runat="server" /> string imgUrl = this.UploadPicFile(this.File1);
        if (imgUrl == "")
        {
                        return;
        }

Answer 3

给你来段代码public static string path;
 protected void btnGoUp_Click(object sender, EventArgs e)
    {
        string str = this.File1.PostedFile.FileName;
        if (str == "")
        {
            Response.Write(bc.MassageBox("请选择上传图片！"));
            return;
        }        string ss = str.Substring(str.LastIndexOf("\\") + 1);
        string s = Server.MapPath("~\\photo\\" + ss);
        path = "~\\photo\\" + ss;
        if (File.Exists(s))
        {
            Response.Write(bc.MassageBox("该文件已经存在，请重新命名！！！"));
            return;
        }
        this.File1.PostedFile.SaveAs(s);
        Response.Write(bc.MassageBox("上传成功！"));
    }
存数据库的时候就存path就是当前图片的路径了页面这样<input id="File1" runat="server" class="InputCss" style="width: 287px" type="file" />
                        <asp:Button ID="btnGoUp" runat="server" CausesValidation="False" CssClass="redButtonCss"
                            OnClick="btnGoUp_Click" Text="上传" Width="67px" style="position: relative" />

Answer 4

先谢谢啦，可为什么我在输入的时候说找不到“file1”？

Answer 5

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Data.SqlClient;public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //type == "jpg" || type == "png" || type == "bmp" || type == "gif" || type == "jpeg"
    }    string str = "insert into FileImage(content) values(@content)";
    string Conn = @"server=.;uid=sa;pwd=sa;database=Northwind";    protected void btnFileUpload_Click(object sender, EventArgs e)
    {
      //string imgtype = .ContentType;                    //文件类型 
         string sFile = FileUpload1.PostedFile.FileName.ToLower();
        string type = Path.GetExtension(sFile);
        string FileType = type.Substring(type.IndexOf('.') + 1);      //FileName.Substring(FileName.IndexOf('.') + 1);        if (FileType == "jpg")
        {            byte[] content = FileToByte(sFile);
            SaveFile(content);
            Response.Write("<script language='javascript'>alert('上传成功');</script>");      
        }
        else
        {        
            Response.Write("<script language='javascript'>alert('图片上传失败,请重试!');</script>");
                   
        }
      
       
    }
    private byte[] FileToByte(string filepath)
    {
        byte[] ib = new byte[6000];
       
        //byte[] ib = new byte[6000];
        //获取上传的图片路径
        string strFilepath = filepath;
       FileStream fs = new FileStream(strFilepath, FileMode.Open, FileAccess.Read);
       //将文件的内容读进字节数组
       fs.Read(ib, 0, filepath.Length);
       return ib;
   //  Response.Write("<script language='javascript'>alert('图片上传失败,请重试!" + ex.Message.ToString() + "');</script>");      
      
    }
   
    private void SaveFile(byte[] content)
    {
              SqlConnection my_conn = new SqlConnection(Conn);
        my_conn.Open();        SqlCommand sql_cmd = new SqlCommand(str, my_conn);        sql_cmd.Parameters.Add("@content",SqlDbType.Image).Value = content;        sql_cmd.ExecuteNonQuery();
       //sql_cmd.ExecuteReader();
       
    }    }
}

Answer 6

添加runat="server"
参考
http://www.cnblogs.com/HurYun/articles/384286.html
http://www.cnblogs.com/kingjiong/archive/2008/01/13/1037084.html