C# Stream 和 byte[] 之间的转换

/* - - - - - - - - - - - - - - - - - - - - - - - -  * Stream 和 byte[] 之间的转换 * - - - - - - - - - - - - - - - - - - - - - - - */ /// <summary> /// 将 Stream 转成 byte[] /// </summary> public byte[] StreamToBytes(Stream stream) { byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); // 设置当前流的位置为流的开始 stream.Seek(0, SeekOrigin.Begin); return bytes; } /// <summary> /// 将 byte[] 转成 Stream /// </summary> public Stream BytesToStream(byte[] bytes) { Stream stream = new MemoryStream(bytes); return stream; } /* - - - - - - - - - - - - - - - - - - - - - - - -  * Stream 和 文件之间的转换 * - - - - - - - - - - - - - - - - - - - - - - - */ /// <summary> /// 将 Stream 写入文件 /// </summary> public void StreamToFile(Stream stream,string fileName) { // 把 Stream 转换成 byte[] byte[] bytes = new byte[stream.Length]; stream.Read(bytes, 0, bytes.Length); // 设置当前流的位置为流的开始 stream.Seek(0, SeekOrigin.Begin); // 把 byte[] 写入文件 FileStream fs = new FileStream(fileName, FileMode.Create); BinaryWriter bw = new BinaryWriter(fs); bw.Write(bytes); bw.Close(); fs.Close(); } /// <summary> /// 从文件读取 Stream /// </summary> public Stream FileToStream(string fileName) {             // 打开文件 FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read); // 读取文件的 byte[] byte[] bytes = new byte[fileStream.Length]; fileStream.Read(bytes, 0, bytes.Length); fileStream.Close(); // 把 byte[] 转换成 Stream Stream stream = new MemoryStream(bytes); return stream; }另外，XML的一个应用是序列化，要用到把字符串转化成byte数组，方法：byte[] bytes = System.Text.UTF8Encoding.UTF8.GetBytes(XmlContent); 相对的，把byte数组转化为字符串的方法则为：string XmlContent = System.Text.UTFEncoding.UTF8.GetString(bytes);从字符串到流Streambyte[] buffer = System.Text.Encoding.Unicode.GetBytes("faint"); MemoryStream stream = new MemoryStream(buffer);MemoryStream ms = new MemoryStream(System.Text.Encoding.Default.GetBytes(AObjStr));这样方便了吧，把想存的东东转化为byte数组，然后压缩一下，网络传输的话也应该很ＯＫ了吧

摘自：http://yinzhihua2008.blog.163.com/blog/static/7943067201261225025288/