C# 压缩文件（全路径格式 和单独文件压缩格式）

单文件压缩格式，表示加压后为你单独压缩的文件

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        /// <summary>
        /// 压缩文件
        /// </summary>
        /// <param name="FileToZip">要进行压缩的文件名</param>
        /// <param name="ZipedFile">压缩后生成的压缩文件名</param>
        /// <returns></returns>
        public bool ZipFile(string FileToZip, string ZipedFile)
        {
            //如果文件没有找到，则报错
            if (!File.Exists(FileToZip))
            {
                throw new System.IO.FileNotFoundException("指定要压缩的文件: " + FileToZip + " 不存在!");
            }
            //FileStream fs = null;
            FileStream ZipFile = null;
            ZipOutputStream ZipStream = null;
            ZipEntry ZipEntry = null;
            bool res = true;
            try
            {
                ZipFile = File.OpenRead(FileToZip);
                byte[] buffer = new byte[ZipFile.Length];
                ZipFile.Read(buffer, 0, buffer.Length);
                ZipFile.Close();
                ZipFile = File.Create(ZipedFile);
                ZipStream = new ZipOutputStream(ZipFile);           
                ZipEntry = new ZipEntry(Path.GetFileName(FileToZip));
                ZipStream.PutNextEntry(ZipEntry);
                ZipStream.SetLevel(6);
                ZipStream.Write(buffer, 0, buffer.Length);
            }
            catch
            {
                res = false;
            }
            finally
            {
                if (ZipEntry != null)
                {
                    ZipEntry = null;
                }
                if (ZipStream != null)
                {
                    ZipStream.Finish();
                    ZipStream.Close();
                }
                if (ZipFile != null)
                {
                    ZipFile.Close();
                    ZipFile = null;
                }
                GC.Collect();
                GC.Collect(1);
            }

            return res;
        }

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用法：

 ZipClass.ZipClass Zc = new ZipClass.ZipClass(); 

 //ZipClass是一个名为ZipClass类库中的ZipClass类  ，

//实例一个类的对象就可以调用里面的方法了

            Zc.ZipFile("D:\\下载程序\\WebDownloadService\\WebDownloadService\\UploadFile\\sjpt.txt", "D:\\下载程序\\WebDownloadService\\WebDownloadService\\UploadFile\\sjpt.zip");

 

=====================================================

全路径压缩格式，指的是 你解压后的文件 是一个带有压缩路径的文件，而你需要的文件在层层路径的文件夹里

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   //public void ZipFileMain(string[] args)
        //   {
        //    string[] filenames = Directory.GetFiles(args[0]);

        //    Crc32 crc = new Crc32();
        //    ZipOutputStream s = new ZipOutputStream(File.Create(args[1]));

        //    s.SetLevel(6); // 0 - store only to 9 - means best compression

        //    foreach (string file in filenames)
        //    {
        //         //打开压缩文件
        //         FileStream fs = File.OpenRead(file);

        //         byte[] buffer = new byte[fs.Length];
        //         fs.Read(buffer, 0, buffer.Length);
        //         ZipEntry entry = new ZipEntry(file);

        //         entry.DateTime = DateTime.Now;

        //         // set Size and the crc, because the information
        //         // about the size and crc should be stored in the header
        //         // if it is not set it is automatically written in the footer.
        //         // (in this case size == crc == -1 in the header)
        //         // Some ZIP programs have problems with zip files that don't store
        //         // the size and crc in the header.
        //         entry.Size = fs.Length;
        //         fs.Close();

        //         crc.Reset();
        //         crc.Update(buffer);

        //         entry.Crc  = crc.Value;

        //         s.PutNextEntry(entry);

        //         s.Write(buffer, 0, buffer.Length);

        //    }

        //    s.Finish();
        //    s.Close();
        //   }

----------------------------------------------------

用法：

 //string[] FileProperties = new string[2];
            //FileProperties[0] = @"D:\下载程序\WebDownloadService\WebDownloadService\UploadFile";//待压缩文件目录
            //FileProperties[1] = @"D:\下载程序\WebDownloadService\WebDownloadService\UploadFile\sjpt.zip";  //压缩后的目标文件         
            //ZipClass.ZipClass Zc = new ZipClass.ZipClass();
            //Zc.ZipFileMain(FileProperties);
            //Response.Write("文件已经压缩成功！");