fileupload 上传

Question

   求 fileupload 上传文件的代码 ，不只上传图片，还可以上传其它文件 

Answer 1

http://blog.csdn.net/aifox/archive/2007/01/11/1480337.aspx去这里看看。上面讲得很详细的。还有代码的

Answer 2

 filename = FileUpload1.FileName;
            if (filename.ToString() != "")
            {
                string name = filename.Substring(filename.LastIndexOf('.'), filename.Length - filename.LastIndexOf('.'));//获取文件后缀名
                string fileurl = Server.MapPath("/mp3/");
                if (name.Equals(".mp3") || name.Equals(".wma"))
                {
                    try
                    {
                        string fn = DateTime.Now.ToString("yyyyMMddhhmmss");
                        fn = fn + name;                        FileUpload1.SaveAs(fileurl + fn);
                                            }
                    catch (Exception ex)
                    { Response.Write("<script> arct('上传失败请重新上传')</script>"); }
                }

Answer 3

1 楼那个好像是java的 

Answer 4

使用FileUpload控件。
if (upImage.HasFile)
            {
 string filePath = "~/upload/" + upImage.FileName;
                    upImage.SaveAs(MapPath(filePath));
}

Answer 5

跪求ASP。NET和C#的师付，QQ15035195

Answer 6

去看一下stream的资料，你就会了

Answer 7

  /// 
        /// 在根目录下创建文件夹 
        /// 
        /// 要创建的文件路径 
        public void CreateFolder(string FolderPathName)
        {
            if (FolderPathName.Trim().Length > 0)
            {
                try
                {
                    string CreatePath = System.Web.HttpContext.Current.Server.MapPath                    ("work/" + FolderPathName).ToString();
                    if (!Directory.Exists(CreatePath))
                    {
                        Directory.CreateDirectory(CreatePath);
                    }
                }
                catch
                {
                    throw;
                }
            }
        }        /**/
        /// 
        /// 删除一个文件夹下面的字文件夹和文件 
        /// 
        /// 
        public void DeleteChildFolder(string FolderPathName)
        {
            if (FolderPathName.Trim().Length > 0)
            {
                try
                {
                    string CreatePath = System.Web.HttpContext.Current.Server.MapPath                    (FolderPathName).ToString();
                    if (Directory.Exists(CreatePath))
                    {
                        Directory.Delete(CreatePath, true);
                    }
                }
                catch
                {
                    throw;
                }
            }
        }        /**/
        /// 
        /// 删除一个文件 
        /// 
        /// 
        public void DeleteFile(string FilePathName)
        {
            try
            {
                FileInfo DeleFile = new FileInfo(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString());
                DeleFile.Delete();
            }
            catch
            {
            }
        }
        public void CreateFile(string FilePathName) 
        { 
            try 
            { 
                //创建文件夹 
                string[] strPath= FilePathName.Split('/'); 
                CreateFolder(FilePathName.Replace("/" + strPath[strPath.Length-1].ToString(),"")); //创建文件夹
                FileInfo CreateFile =new FileInfo(System.Web.HttpContext.Current.Server.MapPath(FilePathName).ToString()); //创建文件 
                if(!CreateFile.Exists) 
                { 
                FileStream FS=CreateFile.Create(); 
                FS.Close(); 
                } 
            } 
            catch 
            {  } 
        }
        /**/
        /// 
        /// 删除整个文件夹及其字文件夹和文件 
        /// 
        /// 
        public void DeleParentFolder(string FolderPathName)
        {
            try
            {
                DirectoryInfo DelFolder = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath("work/" + FolderPathName).ToString());
                if (DelFolder.Exists)
                {
                    DelFolder.Delete();
                }
            }
            catch
            {
            }
        }
        /**/
        /// 
        /// 在文件里追加内容 
        /// 
        /// 
        public void ReWriteReadinnerText(string FilePathName, string WriteWord)
        {
            try
            {
                //建立文件夹和文件 
                //CreateFolder(FilePathName); 
                CreateFile(FilePathName);
                //得到原来文件的内容 
                FileStream FileRead = new FileStream(System.Web.HttpContext.Current.Server.MapPath                (FilePathName).ToString(), FileMode.Open, FileAccess.ReadWrite);
                StreamReader FileReadWord = new StreamReader(FileRead, System.Text.Encoding.Default);
                string OldString = FileReadWord.ReadToEnd().ToString();
                OldString = OldString + WriteWord;
                //把新的内容重新写入 
                StreamWriter FileWrite = new StreamWriter(FileRead, System.Text.Encoding.Default);
                FileWrite.Write(WriteWord);
                //关闭 
                FileWrite.Close();
                FileReadWord.Close();
                FileRead.Close();
            }
            catch
            {
                // throw; 
            }
        }        /**/
        /// 
        /// 在文件里追加内容 
        /// 
        /// 
        public string ReaderFileData(string FilePathName)
        {
            try
            {                FileStream FileRead = new FileStream(System.Web.HttpContext.Current.Server.MapPath                (FilePathName).ToString(), FileMode.Open, FileAccess.Read);
                StreamReader FileReadWord = new StreamReader(FileRead, System.Text.Encoding.Default);
                string TxtString = FileReadWord.ReadToEnd().ToString();
                //关闭 
                FileReadWord.Close();
                FileRead.Close();
                return TxtString;
            }
            catch
            {
                throw;
            }
        }
        /**/
        /// 
        /// 读取文件夹的文件 
        /// 
        /// 
        /// 
        public DirectoryInfo checkValidSessionPath(string FilePathName)
        {
            try
            {
                DirectoryInfo MainDir = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath                (FilePathName));
                return MainDir;            }
            catch
            {
                throw;
            }
        } 
这是所以有关文件操作的代码，希望能看懂

Answer 8

protected void btnupload_Click(object sender, EventArgs e)
    {
        try
        {
            Upload(FileUpload9);
            Upload(FileUpload8);
            Upload(FileUpload7);
            Upload(FileUpload6);
            Upload(FileUpload5);
            Upload(FileUpload4);
            Upload(FileUpload3);
            Upload(FileUpload2);
            Upload(FileUpload10);
            Upload(FileUpload1);            txtmsg.Text = "完成文件上传，如下：<BR>" + ViewState["Upload"].ToString();
            ViewState["Upload"] = null;
        }
        catch (Exception ex) 
        {
            txtmsg.Text = ex.Message;
            //txtmsg.Text = "指定文件";
        }
        StringBuilder sb = new StringBuilder();
        sb.Append("上传信息是：<hr color=red>");
    }
    private void Upload(FileUpload myfileupload) 
    {
        string path = HttpContext.Current.Request.MapPath("~/img/");
        if (myfileupload.HasFile)
        {
            try
            {
                DirectoryInfo dfile = new DirectoryInfo(path);
                FileInfo[] file = dfile.GetFiles(myfileupload.FileName);
                if (file.Length == 1)
                {
                    txtmsg.Text = "有同名文件夹";
                }
                else
                {
                    myfileupload.SaveAs(path + myfileupload.FileName);
                    ViewState["Upload"] += myfileupload.PostedFile.FileName + "</br>";
                }
            }
            catch (Exception ex)
            {
                txtmsg.Text += ex.Message;
            }
        }
        else 
        {
            if(hasfile().ToString()!=null)
            {
                txtmsg.Text = "必须指定一个文件！" + hasfile().ToString();
                //txtmsg.Text = hasfile().ToString();
            }
        }
    }
    private bool hasfile() 
    {
        bool status = false;
        status = FileUpload1.HasFile && FileUpload10.HasFile && FileUpload2.HasFile &&
            FileUpload3.HasFile && FileUpload4.HasFile && FileUpload5.HasFile &&
            FileUpload6.HasFile && FileUpload7.HasFile && FileUpload8.HasFile &&
            FileUpload9.HasFile;
        return status;
    }
这个是批量上传的，去年写的，可能有点老旧···

Answer 9

protected void btnUpload_Click(object sender, EventArgs e) 
    {  
        if (fileUpload.HasFile) 
        { 
            string savePath = Server.MapPath("~/upload/"); 
            if (!System.IO.Directory.Exists(savePath)) 
            { 
                System.IO.Directory.CreateDirectory(savePath); 
            } 
            savePath = savePath + "\\" + fileUpload.FileName; 
            fileUpload.SaveAs(savePath);//保存文件 
            
        } 
    } 

Answer 10

 protected void btnShangChuan_Click(object sender, EventArgs e)
    {
        string path = Server.MapPath("~/File/");
        //判断上传文件大小
        /*限制文件大小在配置文件中httpRuntime 下的maxRequestLength属性，单位字节；
         */
        if (fiLoad.PostedFile.ContentLength > 文件长度)
        {
            labname.Text = "上传文件大小不能超过文件大小";
            return;
        }
         //上传控件中是否有该文件
        else if (fiLoad.HasFile)
        {
            string filename = fiLoad.FileName;
            //判断该文件名是否存在
            DirectoryInfo di = new DirectoryInfo(path);
            path += filename;
            if (di.Exists)
            {
                FileInfo[] diinfo = di.GetFiles();
                foreach (FileInfo item in diinfo)
                {
                    if (item.Name == filename)
                    {
         //myUpload()为页面函数，函数中用confirm（），然后再在函数中调用后台DataBD()方法
                        this.Page.ClientScript.RegisterStartupScript(this.GetType(), "a", "<script >myUpload()</script>");
                        return;
                    }
                }
                fiLoad.SaveAs(path);
                labname.Text = "你成功上传文件 “" + filename + "”";
                ShowDataBD();
            }
            else
            {
                fiLoad.SaveAs(path);
                labname.Text = "你成功上传文件 “" + filename + "”";
                 ShowDataBD();
            }
        }
        else
        {
            labname.Text = "请选择要上传的文件";
        }
    }
 public string DataBD()
    {
        string path = Server.MapPath("~/File/");
        if (fiLoad.HasFile)
        {
            string filename = fiLoad.FileName;
            path += filename;
            fiLoad.SaveAs(path);
            return "你成功替换了文件“" + filename + "”";
        }
        return null;
    }