C#使用DotNetZip封裝類操作zip文件(創(chuàng)建/讀取/更新)實(shí)例
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DotnetZip是一個(gè)開源類庫(kù),支持.NET的任何語言,可很方便的創(chuàng)建,讀取,和更新zip文件。而且還可以使用在.NETCompact Framework中。
下載地址在這里:附件:DotNetZip.rar 解壓后放到主程序同一個(gè)目錄下,引用Ionic.Zip.dll就可以了: 然后引用這個(gè)命名空間: using Ionic.Zip; 以下是我自己封裝的一個(gè)類: /// <summary> /// Zip操作基于 DotNetZip 的封裝 /// </summary> public static class ZipUtils { /// <summary> /// 得到指定的輸入流的ZIP壓縮流對(duì)象【原有流對(duì)象不會(huì)改變】 /// </summary> /// <param name="sourceStream"></param> /// <returns></returns> public static Stream ZipCompress(Stream sourceStream, string entryName = "zip") { MemoryStream compressedStream = new MemoryStream(); if (sourceStream != null) { long sourceOldPosition = 0; try { sourceOldPosition = sourceStream.Position; sourceStream.Position = 0; using (ZipFile zip = new ZipFile()) { zip.AddEntry(entryName, sourceStream); zip.Save(compressedStream); compressedStream.Position = 0; } } catch { } finally { try { sourceStream.Position = sourceOldPosition; } catch { } } } return compressedStream; }
/// <summary> /// 得到指定的字節(jié)數(shù)組的ZIP解壓流對(duì)象 /// 當(dāng)前方法僅適用于只有一個(gè)壓縮文件的壓縮包,即方法內(nèi)只取壓縮包中的第一個(gè)壓縮文件 /// </summary> /// <param name="sourceStream"></param> /// <returns></returns> public static Stream ZipDecompress(byte[] data) { Stream decompressedStream = new MemoryStream(); if (data != null) { try { MemoryStream dataStream = new MemoryStream(data); using (ZipFile zip = ZipFile.Read(dataStream)) { if (zip.Entries.Count > 0) { zip.Entries.First().Extract(decompressedStream); // Extract方法中會(huì)操作ms,后續(xù)使用時(shí)必須先將Stream位置歸零,否則會(huì)導(dǎo)致后續(xù)讀取不到任何數(shù)據(jù) // 返回該Stream對(duì)象之前進(jìn)行一次位置歸零動(dòng)作 decompressedStream.Position = 0; } } } catch { } } return decompressedStream; } /// <summary> /// 壓縮ZIP文件 /// 支持多文件和多目錄,或是多文件和多目錄一起壓縮 /// </summary> /// <param name="list">待壓縮的文件或目錄集合</param> /// <param name="strZipName">壓縮后的文件名</param> /// <param name="IsDirStruct">是否按目錄結(jié)構(gòu)壓縮</param> /// <returns>成功:true/失?。?/span>false</returns> public static bool CompressMulti(List<string> list, string strZipName, bool IsDirStruct) { try { using (ZipFile zip = new ZipFile(Encoding.Default))//設(shè)置編碼,解決壓縮文件時(shí)中文亂碼 { foreach (string path in list) { string fileName = Path.GetFileName(path);//取目錄名稱 //如果是目錄 if (Directory.Exists(path)) { if (IsDirStruct)//按目錄結(jié)構(gòu)壓縮 { zip.AddDirectory(path, fileName); } else//目錄下的文件都?jí)嚎s到Zip的根目錄 { zip.AddDirectory(path); } } if (File.Exists(path))//如果是文件 { zip.AddFile(path); } } zip.Save(strZipName);//壓縮 return true; } } catch (Exception) { return false; } } /// <summary> /// 解壓ZIP文件 /// </summary> /// <param name="strZipPath">待解壓的ZIP文件</param> /// <param name="strUnZipPath">解壓的目錄</param> /// <param name="overWrite">是否覆蓋</param> /// <returns>成功:true/失敗:false</returns> public static bool Decompression(string strZipPath, string strUnZipPath, bool overWrite) { try { ReadOptions options = new ReadOptions(); options.Encoding = Encoding.Default;//設(shè)置編碼,解決解壓文件時(shí)中文亂碼 using (ZipFile zip = ZipFile.Read(strZipPath, options)) { foreach (ZipEntry entry in zip) { if (string.IsNullOrEmpty(strUnZipPath)) { strUnZipPath = strZipPath.Split('.').First(); } if (overWrite) { entry.Extract(strUnZipPath, ExtractExistingFileAction.OverwriteSilently);//解壓文件,如果已存在就覆蓋 } else { entry.Extract(strUnZipPath, ExtractExistingFileAction.DoNotOverwrite);//解壓文件,如果已存在不覆蓋 } } return true; } } catch (Exception) { return false; } } } 使用方法: 1.壓縮文件 List<string> list = new List<string>(); list.Add(@"D:\Test\ss"); list.Add(@"D:\Test\test1.jpg"); list.Add(@"D:\公司文件.txt"); list.Add(@"D:\Test\ss.xml"); bool isSuc =ZipUtils. CompressMulti(list, "D:\\Test2.zip",true); 2.解壓文件 bool isSuc = ZipUtils.Decompression("D:\\Test\\Test1.zip", "D:\\Teest", true); 該文章在 2024/1/19 21:29:48 編輯過 |
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