把图片在数据库中读出来并显示在页面上

这个前台没有代码，我是在后台用代码从数据库里把图片读出来显示在页面上的，

百度了半天，也没看懂网上的是什么意思，只好自己弄了，

效果出来之后需要自己设置图片的显示大小，要不然在界面上显示的乱七八糟的

namespace FriendWeb

{

public partial class pic : System.Web.UI.Page

{

public System.Drawing.Image SetByteToImage(byte[] mybyte)

{

System.Drawing.Image image; MemoryStream mymemorystream = new MemoryStream(mybyte, 0, mybyte.Length);

image = System.Drawing.Image.FromStream(mymemorystream);

return image;

}

int i=0;

protected void Page_Load(object sender, EventArgs e)

{

if (!Page.IsPostBack)

{

using (SqlConnection conn = new SqlConnection())

{

conn.ConnectionString = "data source=QZC-PC;initial catalog=student;User Id=sa;password=123";

string strSql = "select FIamge from boke";

using (SqlCommand cmd = new SqlCommand(strSql, conn))

{

conn.Open();

using (SqlDataReader reader = cmd.ExecuteReader())

{

while (reader.Read())

{

i++;

System.Drawing.Image img = SetByteToImage((Byte[])reader["FIamge"]);

img.Save(Server.MapPath("~/upload")+"/" + i.ToString() + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);

//string jpg = Server.MapPath("~/upload") + "\\" + i.ToString() + ".jpg";

string jpg = "upload/"+i.ToString() + ".jpg";

Response.Write("<img src='"+jpg+"' />");

}

}

}

}

//Response.End();

//reader.Close();

}

}

}

}