将字节数组解压缩为通过BinaryReader进行字符串生成空字符串(Decompress byte array to string via BinaryReader yields empty str

将字节数组解压缩为通过BinaryReader进行字符串生成空字符串(Decompress byte array to string via BinaryReader yields empty string)

我正在尝试解压缩一个字节数组，并使用二进制读取器将其读入一个字符串中。 当执行以下代码时，inStream的位置从0变为数组的长度，但str始终是一个空字符串。

BinaryReader br = null; string str = String.Empty; using (MemoryStream inStream = new MemoryStream(pByteArray)) { GZipStream zipStream = new GZipStream(inStream, CompressionMode.Decompress); BinaryReader br = new BinaryReader(zipStream); str = br.ReadString(); inStream.Close(); br.Close(); }

I am trying to decompress a byte array and get it into a string using a binary reader. When the following code executes, the inStream position changes from 0 to the length of the array, but str is always an empty string.

BinaryReader br = null; string str = String.Empty; using (MemoryStream inStream = new MemoryStream(pByteArray)) { GZipStream zipStream = new GZipStream(inStream, CompressionMode.Decompress); BinaryReader br = new BinaryReader(zipStream); str = br.ReadString(); inStream.Close(); br.Close(); }

最满意答案

你没有展示如何压缩数据，但这里有一个压缩和解压缓冲区的完整例子：

using System; using System.IO; using System.IO.Compression; using System.Text; class Program { static void Main() { var test = "foo bar baz"; var compressed = Compress(Encoding.UTF8.GetBytes(test)); var decompressed = Decompress(compressed); Console.WriteLine(Encoding.UTF8.GetString(decompressed)); } static byte[] Compress(byte[] data) { using (var compressedStream = new MemoryStream()) using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress)) { zipStream.Write(data, 0, data.Length); zipStream.Close(); return compressedStream.ToArray(); } } static byte[] Decompress(byte[] data) { using (var compressedStream = new MemoryStream(data)) using (var zipStream = new GZipStream(compressedStream, CompressionMode.Decompress)) using (var resultStream = new MemoryStream()) { zipStream.CopyTo(resultStream); return resultStream.ToArray(); } } }

You haven't shown how is the data being compressed, but here's a full example of compressing and decompressing a buffer:

using System; using System.IO; using System.IO.Compression; using System.Text; class Program { static void Main() { var test = "foo bar baz"; var compressed = Compress(Encoding.UTF8.GetBytes(test)); var decompressed = Decompress(compressed); Console.WriteLine(Encoding.UTF8.GetString(decompressed)); } static byte[] Compress(byte[] data) { using (var compressedStream = new MemoryStream()) using (var zipStream = new GZipStream(compressedStream, CompressionMode.Compress)) { zipStream.Write(data, 0, data.Length); zipStream.Close(); return compressedStream.ToArray(); } } static byte[] Decompress(byte[] data) { using (var compressedStream = new MemoryStream(data)) using (var zipStream = new GZipStream(compressedStream, CompressionMode.Decompress)) using (var resultStream = new MemoryStream()) { zipStream.CopyTo(resultStream); return resultStream.ToArray(); } } }