ICSharpCode.SharpZipLib.Zip 使用

最新推荐文章于 2023-05-09 17:35:54 发布

原创最新推荐文章于 2023-05-09 17:35:54 发布 · 1k 阅读

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#代码

本文详细介绍了如何在一个项目中使用开源组件实现文件压缩功能，包括核心代码解析及特定条件下的文件读写操作。

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在一个项目中需要用到压缩功能，最终选定了这个开源的组件
话不多说，直接核心代码

 using (ZipOutputStream s = new ZipOutputStream(System.IO.File.Create(zipName)))
                {
                    string zipfilenames = "";
                    System.IO.StreamWriter sw = null;
                    if (CultureInfo.CurrentCulture.Name != "zh-CN")
                    {
                        zipfilenames = System.IO.Path.ChangeExtension(zipName, ".txt");

                        string readmeName =  System.IO.Path.GetFileName(zipfilenames);
                        readmeName = "Readme" + readmeName;
                        zipfilenames = System.IO.Path.GetDirectoryName(zipfilenames) + "\\" + readmeName;
                        sw = new StreamWriter(zipfilenames, true);
                    }
                    s.SetLevel(0);
                    int i = 0;
                    foreach (int fileId in fileIds)
                    {
                      ZipEntry entry;
                        if (CultureInfo.CurrentCulture.Name == "zh-CN")
                        {
                            entry = new ZipEntry(fileVerToDownload.File_VerName);
                        }
                        else
                        {
                            string extension = fileVerToDownload.File_VerExtName;
                            entry = new ZipEntry(i.ToString() + extension);
                            sw.WriteLine(string.Format("id:{0} filename:{1}", i.ToString(), fileVerToDownload.File_VerName));
                        }
                        entry.Flags = (int)GeneralBitFlags.UnicodeText;
                        entry.DateTime = DateTime.Now;
                        s.PutNextEntry(entry);
                              if (CultureInfo.CurrentCulture.Name != "zh-CN")
                    {
                        sw.Flush();
                        sw.Close();
                        ZipEntry entry1 = new ZipEntry(System.IO.Path.GetFileName(zipfilenames));
                        entry1.Flags = (int)GeneralBitFlags.UnicodeText;
                        entry1.DateTime = DateTime.Now;
                        s.PutNextEntry(entry1);
                        using (FileStream fs = System.IO.File.OpenRead(zipfilenames))
                        {
                            int sourceBytes;
                            int currentCount = 0;

                            do
                            {
                                sourceBytes = fs.Read(buffer, 0, buffer.Length);
                                s.Write(buffer, 0, sourceBytes);
                                currentCount += sourceBytes;
                                Count += sourceBytes;
                            } while (sourceBytes > 0);
                        }
                        System.IO.File.Delete(zipfilenames);
                    }
                    s.Finish();
                    s.Close();
                }