将图片等文件保存到sqlite中（c#）

 SqLite.net的dll为System.Data.SQLite.dll，这种dll分为32位、64位和适用于compactframework三种，在引用时要注意，选择正确的dll。
将要保存图片的字段类型设为blob。代码如下：
private void savePicture（）
{
using (SQLiteConnection cnn = new SQLiteConnection(dbPath))
{
cnn.Open();
using (SQLiteCommand cmd = cnn.CreateCommand())
{
//cmd.CommandText = "Create Table test(data Image)";
//cmd.ExecuteNonQuery();
cmd.CommandText = "insert into person values('12',@data,'14','13')";
SQLiteParameter para = new SQLiteParameter("@data", DbType.Binary);
string file = @"F:\Image\飞机.png";
FileStream fs = new FileStream(file, FileMode.Open);
//StreamUtil su = new StreamUtil();
//byte[] buffer = su.StreamToBytes(fs);
byte[] buffer = StreamUtil.ReadFully(fs);
fs.Close();
para.Value = buffer;
cmd.Parameters.Add(para);
cmd.ExecuteNonQuery();
}
}
}

其中StreamUtil为自定义的一个类：
public static class StreamUtil
{
const int BufferSize = 8192;
public static void CopyTo(Stream input,Stream output)
{
byte[] buffer = new byte[BufferSize];

int read;
while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
{
output.Write(buffer, 0, read);
}
}

public static byte[] ReadFully(Stream input)
{
using (MemoryStream tempStream = new MemoryStream())
{
CopyTo(input, tempStream);
return tempStream.ToArray();
}
}

}

参考：http://www.