C#操作Zip压缩的内部文件

1、引入程序集【Ionic.Zip】

using Ionic.Zip;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml;

2、更新zip中的文件

/// <summary>
/// 更新zip中的文件
/// </summary>
/// <param name="baseDir">目标路径</param>
/// <param name="zipName">zip文件名</param>
/// <param name="fileName">新文件，用于替换zip压缩包里的同名文件</param>
public static void UpdateZip(string baseDir, string zipName, string fileName)
{
    var zipFix = Path.Combine(baseDir, zipName);
 
    using (ZipFile zip = new ZipFile(zipFix))
    {
        //更新一个文件
        var sourceFile = Path.Combine(baseDir, fileName);
        var efn = zip.EntriesSorted.First().FileName;
        if (efn.EndsWith("/"))
        {
            efn += fileName;
        }
        if (zip.ContainsEntry(efn))
        {
            var stream = File.OpenRead(sourceFile);
            var z = zip.UpdateEntry(efn, stream);
            z.Comment = DateTime.Now.ToString();
        }
        zip.Comment = String.Format("This zip archive was created by the CreateZip example application on machine '{0}'",
            System.Net.Dns.GetHostName());
 
        zip.Save();
 
        //更新后删掉新文件
        File.Delete(sourceFile);
    }
}

3、提取zip压缩包里的文件

/// <summary>
/// 提取zip压缩包里的文件
/// </summary>
/// <param name="baseDir">zip文件路径</param>
/// <param name="zipName">zip文件名称</param>
/// <param name="fileName">需要提取的文件的文件名称</param>
public static void ExtractZipByName(string baseDir, string zipName, string fileName)
{
    var zipFix = Path.Combine(baseDir, zipName);
 
    byte[] content = null;
    //转换stream为byte[]
    Func<Stream, byte[]> toByteArray = (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;
    };
 
    using (ZipFile zip = new ZipFile(zipFix))
    {
        //拼接相对路径
        var efn = zip.EntriesSorted.First().FileName;
        if (efn.EndsWith("/"))
        {
            efn += fileName;
        }
 
        if (zip.ContainsEntry(efn))
        {
            //在跟目录找
            var entrys = zip.SelectEntries(efn);
            var entry = entrys.FirstOrDefault();
            //将文件解压到内存流
            using (var stream = new MemoryStream())
            {
                entry.Extract(stream);
                stream.Seek(0, SeekOrigin.Begin);
                content = toByteArray(stream);
            }
 
            //在aa目录找
            //var entrys1 = zip.SelectEntries(fileName, "aa");
            //var entry1 = entrys.FirstOrDefault();
        }
    }
    //创建文件
    var extractFile = Path.Combine(baseDir, fileName);
    File.WriteAllBytes(extractFile, content);
}

4、读写config配置文件

/// <summary>
/// 读写config配置文件
/// </summary>
/// <param name="baseDir">提取出来的文件的文件路径</param>
/// <param name="fileName">config配置文件的文件名称</param>
/// <param name="softwareVersion">软件版本（配置的参数）</param>
/// <param name="softwareName">软件名称（配置的参数）</param>
public static void ReadWriteConfig(string baseDir, string fileName, string softwareVersion, string softwareName)
{
    string configFile = baseDir + "\\" + fileName;
 
    //使用XML读取config文件
    XmlDocument xDoc = new XmlDocument();
    xDoc.Load(configFile);
    XmlNodeList nodeList = xDoc.GetElementsByTagName("setting");
    foreach (object obj in nodeList)
    {
        XmlNode item = (XmlNode)obj;
        XmlAttributeCollection xmlAttributeCollection = item.Attributes;
        if (xmlAttributeCollection != null)
        {
            //修改配置的值
            XmlAttribute att = xmlAttributeCollection["name"];
            if (att.Value == "SoftwareVersion")
            {
                item.SelectSingleNode("value").InnerText = softwareVersion;
            }
            if (att.Value == "SoftwareName")
            {
                item.SelectSingleNode("value").InnerText = softwareName;
            }
        }
    }
    xDoc.Save(configFile);
}