C#实现文件二进制存储

private static BinaryFormatter Transfer = new BinaryFormatter();

public int BinaryFileSav()
{
    //-----二进制文件写入并存储

    saveFileDialog1.Filter = "数据文件(*.tifs)|*.tifs";
    saveFileDialog1.Title = "文件存储";
    saveFileDialog1.FileName = "新数据文件.tifs";
    saveFileDialog1.ShowDialog();

    Stream flstr = new FileStream(saveFileDialog1.FileName, FileMode.Create);
    BinaryWriter sw = new BinaryWriter(flstr, Encoding.Unicode);
    byte[] buffer = ChangeObjectToByte(obj);
    sw.Write(buffer);

    sw.Close();
    flstr.Close();

    return 0;
}

public int BinaryFileOpen()
{
    //-----二进制文件读取
    openFileDialog1.Filter = "数据文件(*.tifs)|*.tifs";
    openFileDialog1.Title = "文件打开";
    openFileDialog1.FileName = "";
    openFileDialog1.ShowDialog();

    Stream flstr = new FileStream(openFileDialog1.FileName, FileMode.Open);
    BinaryReader sr = new BinaryReader(flstr, Encoding.Unicode);
    byte[] buffer = sr.ReadBytes((int)flstr.Length);
    FrameForm.Tifs.fileinfo = (FileInfo)ChangeByteToObject(buffer);

    sr.Close();
    flstr.Close();

    return 0;
}


#region ArrayList数组的二进制转化实现

/// <summary>
/// 序列化，存储用
/// </summary>
/// <param name="msg">要序列化的对象</param>
/// <returns>转化成的byte</returns>
private static byte[] ChangeObjectToByte(object obj)
{
    try
    {
        MemoryStream ms = new MemoryStream();
        //----将对象序列化
        Transfer.Serialize(ms, obj);
        byte[] buffer = ms.GetBuffer();
        return buffer;
    }
    catch (Exception err)
    {
        return null;
    }
}

/// <summary>
/// 反序列化，读取用
/// </summary>
/// <param name="buffer">二进制流</param>
private static object ChangeByteToObject(byte[] buffer)
{
    try
    {
        MemoryStream ms = new MemoryStream(buffer, 0, buffer.Length, true, true);
        //----将流反序列化为对象
        object obj = Transfer.Deserialize(ms);
        return obj;
    }
    catch (Exception err)
    {
        return null;
    }
}

#endregion

private static BinaryFormatter Transfer = new BinaryFormatter(); public int BinaryFileSav() { //-----二进制文件写入并存储 saveFileDialog1.Filter = "数据文件(*.tifs)|*.tifs"; saveFileDialog1.Title = "文件存储"; saveFileDialog1.FileName = "新数据文件.tifs"; saveFileDialog1.ShowDialog(); Stream flstr = new FileStream(saveFileDialog1.FileName, FileMode.Create); BinaryWriter sw = new BinaryWriter(flstr, Encoding.Unicode); byte[] buffer = ChangeObjectToByte(obj); sw.Write(buffer); sw.Close(); flstr.Close(); return 0; } public int BinaryFileOpen() { //-----二进制文件读取 openFileDialog1.Filter = "数据文件(*.tifs)|*.tifs"; openFileDialog1.Title = "文件打开"; openFileDialog1.FileName = ""; openFileDialog1.ShowDialog(); Stream flstr = new FileStream(openFileDialog1.FileName, FileMode.Open); BinaryReader sr = new BinaryReader(flstr, Encoding.Unicode); byte[] buffer = sr.ReadBytes((int)flstr.Length); FrameForm.Tifs.fileinfo = (FileInfo)ChangeByteToObject(buffer); sr.Close(); flstr.Close(); return 0; } #region ArrayList数组的二进制转化实现 /// <summary> /// 序列化，存储用 /// </summary> /// <param name="msg">要序列化的对象</param> /// <returns>转化成的byte</returns> private static byte[] ChangeObjectToByte(object obj) { try { MemoryStream ms = new MemoryStream(); //----将对象序列化 Transfer.Serialize(ms, obj); byte[] buffer = ms.GetBuffer(); return buffer; } catch (Exception err) { return null; } } /// <summary> /// 反序列化，读取用 /// </summary> /// <param name="buffer">二进制流</param> private static object ChangeByteToObject(byte[] buffer) { try { MemoryStream ms = new MemoryStream(buffer, 0, buffer.Length, true, true); //----将流反序列化为对象 object obj = Transfer.Deserialize(ms); return obj; } catch (Exception err) { return null; } } #endregion 

 

 

obj代表任意数据类型。另外，最好在该类前加注

[Serializable] //----必须令相应的类实现可序列化标记接口