C#兼容PHP的GZip算法

原创

思月行云 2023-01-05 11:07:27 博主文章分类：PHP ©著作权

文章标签 php c# System Text 文章分类 OpenStack 云计算

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// php GZip压缩
gzencode($data);

// php GZip解压缩
gzinflate(substr($data,10,-8));  // 高版本的php已经拥有名为【gzdecode】的api

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using ICSharpCode.SharpZipLib;
using ICSharpCode.SharpZipLib.GZip;


public class GZipHelper
{

    public static byte[] EncodeRaw(byte[] bytes)
    {
        MemoryStream ms = new MemoryStream();
        GZipOutputStream gz = new GZipOutputStream(ms);
        gz.Write(bytes, 0, bytes.Length);
        gz.Close();
        byte[] ret = ms.ToArray();
        ms.Close();
        return ret;
    }

    public static byte[] DecodeRaw(byte[] bytes)
    {
        MemoryStream des = new MemoryStream();
        MemoryStream ms = new MemoryStream(bytes);
        GZipInputStream gz = new GZipInputStream(ms);
        int count = 0;
        int offset = 0;
        byte[] buf = new byte[1024 * 1024];
        do
        {
            count = gz.Read(buf, 0, buf.Length);
            des.Write(buf, offset, count);
            offset += count;
        } while (count > 0);
        gz.Close();
        byte[] ret = des.ToArray();
        ms.Close();
        return ret;
    }
}