将图片以流的形式保存到数据库(Image)以及从数据库中取出显示
将图片以流的形式保存到数据库(Image)以及从数据库中取出显示
try
{
string imagepath = @"D:\backImage\black.jpg";
FileStream fs = new FileStream(imagepath, FileMode.Open);
BinaryReader br = new BinaryReader(fs);
byte[] myimages = br.ReadBytes(Convert.ToInt32(fs.Length));
//string conn_Str = @"server=.;database=pubs;user=sa;pwd=sasa";
string conn_Str = @"Data Source=DF15D10F40A945C\SQLEXPRESS;Initial catalog =pubs;user=sa;pwd=sasa";
using (SqlConnection sqlcon = new SqlConnection(conn_Str))
{
sqlcon.Open();
string insertsql = "insert into table1 values(1,@image)";
using (SqlCommand sqlcom = new SqlCommand(insertsql, sqlcon))
{
SqlParameter sqlparameter = new SqlParameter("@image", SqlDbType.Image);
sqlparameter.Value = myimages;
sqlcom.Parameters.Add(sqlparameter);
sqlcom.ExecuteNonQuery();
}
string selectsql = "select * from table1";
using (SqlCommand sqlcom = new SqlCommand(selectsql, sqlcon))
{
SqlDataReader sqldr = sqlcom.ExecuteReader();
sqldr.Read();
byte[] images = (byte[])sqldr["myimage"];
Stream stream = new MemoryStream(images);
pictureBox2.Image = System.Drawing.Image.FromStream(stream);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
try
{
string imagepath = @"D:\backImage\black.jpg";
FileStream fs = new FileStream(imagepath, FileMode.Open);
BinaryReader br = new BinaryReader(fs);
byte[] myimages = br.ReadBytes(Convert.ToInt32(fs.Length));
//string conn_Str = @"server=.;database=pubs;user=sa;pwd=sasa";
string conn_Str = @"Data Source=DF15D10F40A945C\SQLEXPRESS;Initial catalog =pubs;user=sa;pwd=sasa";
using (SqlConnection sqlcon = new SqlConnection(conn_Str))
{
sqlcon.Open();
string insertsql = "insert into table1 values(1,@image)";
using (SqlCommand sqlcom = new SqlCommand(insertsql, sqlcon))
{
SqlParameter sqlparameter = new SqlParameter("@image", SqlDbType.Image);
sqlparameter.Value = myimages;
sqlcom.Parameters.Add(sqlparameter);
sqlcom.ExecuteNonQuery();
}
string selectsql = "select * from table1";
using (SqlCommand sqlcom = new SqlCommand(selectsql, sqlcon))
{
SqlDataReader sqldr = sqlcom.ExecuteReader();
sqldr.Read();
byte[] images = (byte[])sqldr["myimage"];
Stream stream = new MemoryStream(images);
pictureBox2.Image = System.Drawing.Image.FromStream(stream);
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}