c# - c#中的压缩字符串

Question

我正在使用以下代码来压缩 2 个字符串，它在压缩时效果很好。但是，当我尝试解压缩第二个字符串时，如果第一个字符串很短(大约 4 个字符)，我得到 Block length does not match with its complement 异常。 这是我用于压缩的类:

    using System;
    using System.IO;
    using System.IO.Compression;
    using System.Text;

    namespace CompressString {
    internal static class StringCompressor
{
    /// <summary>
    /// Compresses the string.
    /// </summary>
    /// <param name="text">The text.</param>
    /// <returns></returns>
    public static string CompressString(string value)
    {
        //Transform string into byte[] 
        byte[] byteArray = new byte[value.Length];
        int indexBA = 0;
        foreach (char item in value.ToCharArray())
        {
            byteArray[indexBA++] = (byte)item;
        }

        //Prepare for compress
        System.IO.MemoryStream ms = new System.IO.MemoryStream();
        System.IO.Compression.GZipStream sw = new System.IO.Compression.GZipStream(ms,
        System.IO.Compression.CompressionMode.Compress);

        //Compress
        sw.Write(byteArray, 0, byteArray.Length);
        //Close, DO NOT FLUSH cause bytes will go missing...
        sw.Close();

        //Transform byte[] zip data to string
        byteArray = ms.ToArray();
        System.Text.StringBuilder sB = new System.Text.StringBuilder(byteArray.Length);
        foreach (byte item in byteArray)
        {
            sB.Append((char)item);
        }
        ms.Close();
        sw.Dispose();
        ms.Dispose();

        return sB.ToString();
    }

    /// <summary>
    /// Decompresses the string.
    /// </summary>
    /// <param name="compressedText">The compressed text.</param>
    /// <returns></returns>
    public static string DecompressString(string sData)
    {
        byte[] byteArray = new byte[sData.Length];

        int indexBa = 0;
        foreach (char item in sData)
            byteArray[indexBa++] = (byte)item;

        MemoryStream memoryStream = new MemoryStream(byteArray);
        GZipStream gZipStream = new GZipStream(memoryStream, CompressionMode.Decompress);

        byteArray = new byte[1024];

        StringBuilder stringBuilder = new StringBuilder();

        int readBytes;
        while ((readBytes = gZipStream.Read(byteArray, 0, byteArray.Length)) != 0)
        {
            for (int i = 0; i < readBytes; i++) stringBuilder.Append((char)byteArray[i]);
        } gZipStream.Close(); memoryStream.Close(); gZipStream.Dispose(); memoryStream.Dispose(); return stringBuilder.ToString();
    }
}

我在行中的 DecompressString 方法中遇到异常:

while ((readBytes = gZipStream.Read(byteArray, 0, byteArray.Length)) != 0)

Answer 1

对于收到错误消息“ block 长度与其补码不匹配”的其他人，如果您尝试解压缩未压缩的文件，则可能会发生这种情况。