c# - 如何将文件路径从我的代码中取出并放入 mysql 的插入语句中？

Question

如何将文件路径从我的代码中取出并放入 mysql 的插入语句中？

     protected void UploadButton_Click(object sender, EventArgs e)
            {
            string theUserId = Session["UserID"].ToString();
            {
                OdbcConnection cn = new OdbcConnection("Driver={MySQL ODBC 3.51 Driver}; Server=localhost; Database=gymwebsite2; User=root; Password=commando;");
                cn.Open();
            }
            if (FileUploadControl.HasFile)
                        {
                            try
                            {
                                string filename = Path.GetFileName(FileUploadControl.FileName);
                                string fileuploadpath = Server.MapPath("~/userdata/" + theUserId + "/uploadedimage/");
                                FileUploadControl.SaveAs(Path.Combine(fileuploadpath, + filename)); 
//error on this line best overload method has some invalid arguements
                                StatusLabel.Text = "Upload status: File uploaded!";

                                //some kind of function to take the path then enter it into my insert syntax?

                                OdbcCommand cmd = new OdbcCommand("INSERT INTO Pictures (UserID, picturepath) VALUES ('"+ theUserId +"' , '"+ fileuploadpath +"')", cn);
                                cmd.ExecuteNonQuery();
                            }

                            catch (Exception ex)
                            {
                                StatusLabel.Text = "Upload status: The file could not be uploaded. The following error occured: " + ex.Message;

                            }

                        }
                    }

                }

Answer 1

改变

FileUploadControl.SaveAs(Server.MapPath("~/userdata/" + theUserId + "/uploadedimage/") + filename); 

至

string fileuploadpath = Server.MapPath("~/userdata/" + theUserId + "/uploadedimage/");
FileUploadControl.SaveAs(Path.Combine(fileuploadpath ,  filename)); 

然后 fileuploadpath 将可供您输入查询。

当然，你的问题不是很详细。您是否想要客户端将文件存储在其计算机上的本地路径？

仅供引用:使用参数而不是串联。