Asp.net 使用FileUpload将图像插入数据库
我想使用FileUpload控件将图像插入数据库。我已尝试使用以下代码执行此操作:Asp.net 使用FileUpload将图像插入数据库,asp.net,sql,linq-to-sql,file-upload,image-uploading,Asp.net,Sql,Linq To Sql,File Upload,Image Uploading,我想使用FileUpload控件将图像插入数据库。我已尝试使用以下代码执行此操作: protected void btnUploadAvatar_Click(object sender, EventArgs e) { if (fuAvatar.PostedFile != null && fuAvatar.PostedFile.FileName != "") ; { byte[] imageSize = new byt
protected void btnUploadAvatar_Click(object sender, EventArgs e)
{
if (fuAvatar.PostedFile != null && fuAvatar.PostedFile.FileName != "") ;
{
byte[] imageSize = new byte[fuAvatar.PostedFile.ContentLength];
HttpPostedFile uploadImage = fuAvatar.PostedFile;
uploadImage.InputStream.Read(imageSize, 0, fuAvatar.PostedFile.ContentLength);
SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True");
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "INSERT INTO User(image" + "VALUES (@Image) WHERE userid = @Userid";
cmd.CommandType = CommandType.Text;
cmd.Connection = con;
SqlParameter UploadedImage = new SqlParameter("@Image", SqlDbType.Image, imageSize.Length);
UploadedImage.Value = imageSize;
SqlParameter userid = new SqlParameter("@Userid", SqlDbType.Int);
userid.Value = Convert.ToInt32(Session["userid"]);
cmd.Parameters.Add(userid);
cmd.Parameters.Add(UploadedImage);
con.Open();
cmd.ExecuteNonQuery();
con.Close();
/*if(result > 0)
{
lblResult.Text = "Avatar lastet opp";
}*/
}
}
但是我在cmd.ExecuteNonQuery()上得到一个错误;上面说:SqlException未经用户代码处理,关键字“user”附近的语法不正确。我尝试了小于10KB的*.jpg和*.png文件。您有语法错误:
cmd.CommandText =
"INSERT INTO User(image" + "VALUES (@Image) WHERE userid = @Userid";
缺少一个)
和间距:
cmd.CommandText =
"INSERT INTO User(image)" + " VALUES (@Image) WHERE userid = @Userid";
或者更好(为什么要连接?):
谢谢,这很有效,但我找到了另一种方法。无论如何谢谢你!
cmd.CommandText =
"INSERT INTO User(image) VALUES (@Image) WHERE userid = @Userid";