如何存图片到数据库中

将图片以二进制形式存入数据库时,首先要在数据库中建立一张表,将存储图片的字段类型设为Image类型,用FileStream类、BinaryReader把图片读成字节的形式,赋给一个字节数组,然后用ADO.SqlCommand对象的ExecuteNonQuery()方法来把数据保存到数据库中。主要代码如下：

 1  private void button1_Clickobject sender, EventArgs e)
 2 
 3         {
 4 
 5           openFileDialog1.Filter = "*jpg|*.JPG|*.GIF|*.GIF|*.BMP|*.BMP";
 6 
 7             if(openFileDialog1.ShowDialog()==DialogResult.OK)
 8 
 9             {
10 
11 　　　　          string fullpath =openFileDialog1.FileName;//文件路径
12 
13           　      FileStream fs = new FileStream(fullpath, FileMode.Open);
14 
15                 byte[] imagebytes =new byte[fs.Length];
16 
17                 BinaryReader br = new BinaryReader(fs);
18 
19                 imagebytes = br.ReadBytes(Convert.ToInt32(fs.Length));
20 
21                 //数据库连接
22                    SqlConnection  con = new SqlConnection("server=(local);uid=sa;pwd=;database=db_05");
23 
24                 con.Open();
25 
26                 SqlCommand com = new SqlCommand("insert into tb_08 values(@ImageList)",con);
27 
28                 com.Parameters.Add("ImageList", SqlDbType.Image);
29 
30                 com.Parameters["ImageList"].Value = imagebytes;
31 
32                com.ExecuteNonQuery();
33 
34                con.Close();
35 
36         }    
37 
38 }