asp.net 图片的读写入库实现代码

private static void AddCinfo() 
{ 
string strSql = "insert into cinfo (srvtitle,csttitle,introduction,logo) values 
(@srvtitle,@csttitle,@introduction,@logo)"; 
SqlParameter[] parms = 
{ 
new SqlParameter("@srvtitle",SqlDbType.VarChar,30), 
new SqlParameter("@csttitle",SqlDbType.VarChar,30), 
new SqlParameter("@introduction",SqlDbType.NVarChar,500), 
new SqlParameter("@logo",SqlDbType.Image) 
}; 
parms[0].Value = "旅业互动"; 
parms[1].Value = "lyhd"; 
parms[2].Value = "简介"; 
string filePath = @"c:\1.jpg"; 
FileStream fs = File.OpenRead(filePath); 
byte[] content = new byte[fs.Length]; 
fs.Read(content, 0, content.Length); 
fs.Close(); 
parms[3].Value = content; 
DBHelper.ExecuteNonQuery(CommandType.Text, strSql, parms); 
} 
 
读取图片的页面 test.aspx 
 代码如下:

protected void Page_Load(object sender, EventArgs e) 
{ 
string strSql = "select * from cinfo where id=1"; 
SqlDataReader reader=DBHelper.ExecuteReader(CommandType.Text, strSql, null); 
if(reader.Read()) 
{ 
byte[] c=(byte[])reader["logo"]; 
Response.BinaryWrite(c); 
} 
} 
 
用来显示图片的页面 test2.aspx 
 代码如下:

<img src="test.aspx" />