方式一：
/// <summary>
/// word文件转换二进制数据(用于保存数据库)
/// </summary>
/// <param name="wordPath">word文件路径</param>
/// <returns>二进制</returns>
public byte[] WordConvertByte(string wordPath)
{
if (!File.Exists(wordPath))
{
return null;
}
byte[] bytContent = null;
System.IO.FileStream fs = null;
System.IO.BinaryReader br = null;
try
{
fs = new FileStream(wordPath, System.IO.FileMode.Open);
br = new BinaryReader((Stream)fs);
bytContent = br.ReadBytes((Int32)fs.Length);
fs.Close();
br.Close();
}
catch
{
fs.Close();
br.Close();
return null;
}
return bytContent;
} /// <summary>
///二进制数据转换为word文件
/// </summary>
/// <param name="data">二进制数据</param>
/// <param name="fileName">word文件名</param>
/// <returns>word保存的相对路径</returns>
public string ByteConvertWord(byte[] data, string fileName)
{
if (data == null) return string.Empty; FileStream fs = null;
BinaryWriter br = null;
try
{
fs = new FileStream(fileName, FileMode.OpenOrCreate);
br = new BinaryWriter(fs);
br.Write(data, 0, data.Length);
br.Close();
fs.Close();
}
catch
{
br.Close();
fs.Close();
return string.Empty;
}
return fileName;
}
方式二：
// <summary>
/// 根据图片路径返回图片的字节流byte[]
/// </summary>
/// <param name="imagePath">图片路径</param>
/// <returns>返回的字节流</returns>
private byte[] ImageToByte(string imagePath)
{
FileStream files = new FileStream(imagePath, FileMode.Open);
byte[] imgByte = new byte[files.Length];
files.Read(imgByte, 0, imgByte.Length);
files.Close();
return imgByte;
} /// <summary>
/// 字节数组生成图片
/// </summary>
/// <param name="Bytes">字节数组</param>
/// <returns>图片</returns>
private Image ByteArrayToImage(byte[] Bytes)
{
MemoryStream ms = new MemoryStream(Bytes);
return Bitmap.FromStream(ms, true);
}
程序运行效果：
//将image转换成byte[]数据
private byte[] ImageToByte(System.Drawing.Image img)
{
MemoryStream ms = new MemoryStream();
img.Save(ms,System.Drawing.Imaging.ImageFormat.Jpeg);
return ms.ToArray();
} //将byte[]数据转换成image
private Image ByteToImage(byte[] bytes)
{
MemoryStream ms = new MemoryStream(bytes);
Image img= Image.FromStream(ms);
return img;
}