将.txt文件作为Blob从ASP存储到Mysql中.净MVC3

Question

目前我在ASP工作。. NET MVC 3项目。我需要将文本(.txt)文件存储到MySQL中作为Blob。MySQL对我来说是新的。

Answer 1

应该是这样的(Connectionstring应该被修改):

string filePath = @"C:\MyFile.ext";
//A stream of bytes that represnts the binary file
FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
//The reader reads the binary data from the file stream
BinaryReader reader = new BinaryReader(fs);
//Bytes from the binary reader stored in BlobValue array
byte[] BlobValue = reader.ReadBytes((int)fs.Length);
fs.Close();
reader.Close();
SqlConnection BlobsDatabaseConn = new SqlConnection("Data Source = .; Initial Catalog = BlobsDatabase; Integrated Security = SSPI");
SqlCommand SaveBlobeCommand = new SqlCommand();
SaveBlobeCommand.Connection = BlobsDatabaseConn;
SaveBlobeCommand.CommandType = CommandType.Text;
SaveBlobeCommand.CommandText = "INSERT INTO BlobsTable(BlobFileName, BlobFile)" + "VALUES (@BlobFileName, @BlobFile)";
SqlParameter BlobFileNameParam = new SqlParameter("@BlobFileName", SqlDbType.NChar); 
SqlParameter BlobFileParam = new SqlParameter("@BlobFile", SqlDbType.Binary);
SaveBlobeCommand.Parameters.Add(BlobFileNameParam);
SaveBlobeCommand.Parameters.Add(BlobFileParam);
BlobFileNameParam.Value = filePath.Substring(filePath.LastIndexOf("\") + 1);
BlobFileParam.Value = BlobValue;
try
{
    SaveBlobeCommand.Connection.Open();
    SaveBlobeCommand.ExecuteNonQuery();
    MessageBox.Show(BlobFileNameParam.Value.ToString() + " saved to database.","BLOB Saved", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch(Exception ex) 
{
    MessageBox.Show(ex.Message, "Save Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally 
{
    SaveBlobeCommand.Connection.Close();
}

看一下:

向数据库写入BLOB值