使用文件上传控件将图像插入MySQL数据库 [英] Inserting an image into MySQL database using file upload control

问题描述

我想使用Visual Studio中的文件上传控件将图像插入MySQL数据库.我正在使用带有ODBCc和.NET连接器的ASP.NET 3.5和MySQL Community Server.

I would like to insert the image into a MySQL database using the file upload control in Visual Studio. I am using ASP.NET 3.5 and MySQL Community Server with ODBCc and .NET Connectors.

推荐答案

此处有一些代码会将发布的文件拉入字节数组.然后将其传递给MySQL.假定 varbinary 列数据类型.根据需要进行修改.

Here some code that will pull the posted file into a byte array. It'll then pass it down to MySQL. Assumes a varbinary column data type. Modify as you need.

if(FileUploadControl.HasFile)
{
    try
    {
         byte[] img = new byte[FileUploadControl.PostedFile.ContentLength- 1];
         img = FileUploadControl.FileBytes;
         InsertImg(img);

    }
    catch(Exception ex)
    {
    }
}

....

public void InsertImg(byte[] img) //untested code
{
     using (MySqlConnection conn = new MySqlConnection(connString))
     {
         using (MySqlCommand cmd = conn.CreateCommand())
         {
              cmd.CommandText = @"INSERT INTO MyTable(MyImage) VALUES (@Img)";
              cmd.Parameters.Add("@Img", System.Data.SqlDbType.VarBinary); //or SqlDbType.Image
              cmd.Parameters["@Img"].Value = img;
              conn.Open();
              cmd.ExecuteNonQuery();
         }
      }
}

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