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对word,excel进行存取

时间:2013-09-22 09:33 来源: 作者: 收藏

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核心提示:用ado.net对word,excel进行存取,以下是操作代码

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//这个东西主要用来列表,把已经有的东西列出来

<asp:HyperLinkColumn DataNavigateUrlField="id" HeaderText="产品名称" DataNavigateUrlFormatString="./getFile.aspxID={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//这个文件比较重要负责把村道数据库里面的文件,按照格式,按照名称,给传输出来

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");//设置输出流为简体中文

//Response.ContentType = "application/ms-word";//设置输出文件类型为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();

}

这里要说的有两点,第一,就是把文件的名称getFile.aspx变成我们想要的名称。

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

第二,就是把指定的名称变成我们想要的值,是标准的中文,而不是中文的乱码。

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


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