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 程式師世界 >> 編程語言 >> 更多編程語言 >> 更多關於編程 >> ado.net存取word及excel

ado.net存取word及excel

編輯:更多關於編程

     blob表

      3 id int 4 0

      0 name char 50 1

      0 blob image 16 1

      0 type char 60 1

      saveFile.aspx.cs

      PRivate void Button1_Click(object sender, System.EventArgs e)

      {

      Stream imgdatastream = File1.PostedFile.InputStream;

      int imgdatalen = File1.PostedFile.ContentLength;

      string imgtype = File1.PostedFile.ContentType;

      string name = this.getFileNameByURL(this.File1.PostedFile.FileName);

      byte[] imgdata = new byte[imgdatalen];

      int n = imgdatastream.Read(imgdata,0,imgdatalen);

      string connstr = "workstation id=OVERMIND;packet size=4096;user id=sa;passWord=sa;data source=OVERMIND;persist security info=False;initial catalog=wztj";

      SqlConnection connection = new SqlConnection(connstr);

      SqlCommand command = new SqlCommand("INSERT INTO blob(name,type,blob) VALUES ( @imgtitle, @type,@blob )", connection );

      SqlParameter paramTitle = new SqlParameter("@imgtitle", SqlDbType.VarChar,50 );

      paramTitle.Value = name;

      command.Parameters.Add(paramTitle);

      SqlParameter paramData = new SqlParameter( "@blob", SqlDbType.Image );

      paramData.Value = imgdata;

      command.Parameters.Add( paramData );

      SqlParameter paramType = new SqlParameter( "@type", SqlDbType.VarChar,50 );

      paramType.Value = imgtype;

      command.Parameters.Add( paramType );

      wztj.debug.TestSQL.TraceErrorSql("INSERT INTO blob(name,type,blob) VALUES ( @imgtitle, @type,@blob )",command.Parameters);

      connection.Open();

      int numRowsAffected = command.ExecuteNonQuery();

      connection.Close();

      }

      listFile.aspx//這個東西主要用來列表,把已經有的東西列出來

      <asp:HyperLinkColumn DataNavigateUrlField="id" HeaderText="產品名稱" DataNavigateUrlFormatString="./getFile.aspx?ID={0}" DataTextField="name" DataTextFormatString="{0}" ItemStyle-HorizontalAlign="Center" ItemStyle-Width="160px">

      listFile.aspx.cs

      string connstr="workstation id=OVERMIND;packet size=4096;user id=sa;password=sa;data source=OVERMIND;persist security info=False;initial catalog=wztj";

      SqlConnection connection = new SqlConnection(connstr);

      SqlCommand command = new SqlCommand("select * from blob", connection );

      connection.Open();

      SqlDataAdapter adaptor = new SqlDataAdapter(command);

      DataSet ds = new DataSet();

      adaptor.Fill(ds,"blob");

      connection.Close();

      this.DataGrid1.DataSource=ds.Tables["blob"].DefaultView;

      this.DataGrid1.DataBind();

      getFile.aspx.cs//這個文件比較重要負責把村道數據庫裡面的文件,按照格式,按照名稱,給傳輸出來

      private void Page_Load(object sender, System.EventArgs e)

      {

      string imgid =this.Request.QueryString.Get("ID");

      //Request.QueryString["imgid"];

      string connstr="workstation id=OVERMIND;packet size=4096;user id=sa;password=sa;data source=OVERMIND;persist security info=False;initial catalog=wztj";

      string sql="SELECT name,blob, type FROM blob WHERE id = " + imgid;

      SqlConnection connection = new SqlConnection(connstr);

      SqlCommand command = new SqlCommand(sql, connection);

      connection.Open();

      SqlDataReader dr = command.ExecuteReader();

      if(dr.Read())

      {

      Response.Clear();

      Response.Buffer= true;

      Response.Charset="GB2312";

      Response.ContentEncoding=System.Text.Encoding.GetEncoding("GB2312");//設置輸出流為簡體中文

      //Response.ContentType = "application/ms-word";//設置輸出文件類型為word文件。

      Response.ContentType = dr["type"].ToString();

      Response.BinaryWrite( (byte[]) dr["blob"] );

      string FileName = dr["name"].ToString()。Trim();

      FileName=System.Web.HttpUtility.UrlEncode(FileName,System.Text.Encoding.UTF8 );

      Response.AppendHeader("Content-Disposition", "attachment;filename="+FileName);

      }

      connection.Close();

      }

      這裡要說的有兩點,第一,就是把文件的名稱getFile.aspx變成我們想要的名稱。

      Response.AppendHeader("Content-Disposition", "attachment;filename="+FileName);

      第二,就是把指定的名稱變成我們想要的值,是標准的中文,而不是中文的亂碼。

      FileName=System.Web.HttpUtility.UrlEncode(FileName,System.Text.Encoding.UTF8 );

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