這篇文章主要為大家展示了“C#如何使用ICSharpCode.SharpZipLib.dll進(jìn)行文件的壓縮與解壓功能”,內(nèi)容簡(jiǎn)而易懂,條理清晰,希望能夠幫助大家解決疑惑,下面讓小編帶領(lǐng)大家一起研究并學(xué)習(xí)一下“C#如何使用ICSharpCode.SharpZipLib.dll進(jìn)行文件的壓縮與解壓功能”這篇文章吧。
目前創(chuàng)新互聯(lián)建站已為成百上千的企業(yè)提供了網(wǎng)站建設(shè)、域名、網(wǎng)站空間、網(wǎng)站托管、服務(wù)器租用、企業(yè)網(wǎng)站設(shè)計(jì)、灌陽(yáng)網(wǎng)站維護(hù)等服務(wù),公司將堅(jiān)持客戶導(dǎo)向、應(yīng)用為本的策略,正道將秉承"和諧、參與、激情"的文化,與客戶和合作伙伴齊心協(xié)力一起成長(zhǎng),共同發(fā)展。
具體代碼如下所示:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using ICSharpCode.SharpZipLib.Zip;
using ICSharpCode.SharpZipLib.Checksums;
using System.Security.Cryptography;
namespace zip壓縮與解壓
{
public class ZipHelper
{
/// <summary>
/// 壓縮單個(gè)文件
/// </summary>
/// <param name="fileToZip">需壓縮的文件名</param>
/// <param name="zipFile">壓縮后的文件名(文件名都是絕對(duì)路徑)</param>
/// <param name="level">壓縮等級(jí)(0-9)</param>
/// <param name="password">壓縮密碼(解壓是需要的密碼)</param>
public static void ZipFile(string fileToZip, string zipFile, int level = 5, string password = "123")
{
if (!File.Exists(fileToZip))
throw new FileNotFoundException("壓縮文件" + fileToZip + "不存在");
using (FileStream fs = File.OpenRead(fileToZip))
{
fs.Position = 0;//設(shè)置流的起始位置
byte[] buffer = new byte[(int)fs.Length];
fs.Read(buffer, 0, buffer.Length);//讀取的時(shí)候設(shè)置Position,寫入的時(shí)候不需要設(shè)置
fs.Close();
using (FileStream zfstram = File.Create(zipFile))
{
using (ZipOutputStream zipstream = new ZipOutputStream(zfstram))
{
zipstream.Password = md5(password);//設(shè)置屬性的時(shí)候在PutNextEntry函數(shù)之前
zipstream.SetLevel(level);
string fileName = fileToZip.Substring(fileToZip.LastIndexOf('\\') + 1);
ZipEntry entry = new ZipEntry(fileName);
zipstream.PutNextEntry(entry);
zipstream.Write(buffer, 0, buffer.Length);
}
}
}
}
/// <summary>
/// 壓縮多個(gè)文件目錄
/// </summary>
/// <param name="dirname">需要壓縮的目錄</param>
/// <param name="zipFile">壓縮后的文件名</param>
/// <param name="level">壓縮等級(jí)</param>
/// <param name="password">密碼</param>
public static void ZipDir(string dirname, string zipFile, int level = 5, string password = "123")
{
ZipOutputStream zos = new ZipOutputStream(File.Create(zipFile));
zos.Password = md5(password);
zos.SetLevel(level);
addZipEntry(dirname, zos, dirname);
zos.Finish();
zos.Close();
}
/// <summary>
/// 往壓縮文件里面添加Entry
/// </summary>
/// <param name="PathStr">文件路徑</param>
/// <param name="zos">ZipOutputStream</param>
/// <param name="BaseDirName">基礎(chǔ)目錄</param>
private static void addZipEntry(string PathStr, ZipOutputStream zos, string BaseDirName)
{
DirectoryInfo dir = new DirectoryInfo(PathStr);
foreach (FileSystemInfo item in dir.GetFileSystemInfos())
{
if ((item.Attributes & FileAttributes.Directory) == FileAttributes.Directory)//如果是文件夾繼續(xù)遞歸
{
addZipEntry(item.FullName, zos, BaseDirName);
}
else
{
FileInfo f_item = (FileInfo)item;
using (FileStream fs = f_item.OpenRead())
{
byte[] buffer = new byte[(int)fs.Length];
fs.Position = 0;
fs.Read(buffer, 0, buffer.Length);
fs.Close();
ZipEntry z_entry = new ZipEntry(item.FullName.Replace(BaseDirName, ""));
zos.PutNextEntry(z_entry);
zos.Write(buffer, 0, buffer.Length);
}
}
}
}
/// <summary>
/// 解壓多個(gè)文件目錄
/// </summary>
/// <param name="zfile">壓縮文件絕對(duì)路徑</param>
/// <param name="dirname">解壓文件目錄</param>
/// <param name="password">密碼</param>
public static void UnZip(string zfile, string dirname, string password)
{
if (!Directory.Exists(dirname)) Directory.CreateDirectory(dirname);
using (ZipInputStream zis = new ZipInputStream(File.OpenRead(zfile)))
{
zis.Password = md5(password);
ZipEntry entry;
while ((entry = zis.GetNextEntry()) != null)
{
var strArr = entry.Name.Split('\\');//這邊判斷壓縮文件里面是否存在目錄,存在的話先創(chuàng)建目錄后繼續(xù)解壓
if (strArr.Length > 2)
Directory.CreateDirectory(dirname + @"\" + strArr[1]);
using (FileStream dir_fs = File.Create(dirname + entry.Name))
{
int size = 1024 * 2;
byte[] buffer = new byte[size];
while (true)
{
size = zis.Read(buffer, 0, buffer.Length);
if (size > 0)
dir_fs.Write(buffer, 0, size);
else
break;
}
}
}
}
}
private static string md5(string pwd)
{
var res = "";
MD5 md = MD5.Create();
byte[] s = md.ComputeHash(Encoding.Default.GetBytes(pwd));
for (int i = 0; i < s.Length; i++)
res = res + s[i].ToString("X");
return res;
}
}
}調(diào)用函數(shù)如下:
static void Main(string[] args)
{
var str = @"\學(xué)籍導(dǎo)入模板.xls";
//var arr=str.Split('\\');
var filePath = @"D:\程序文件\VS2010學(xué)習(xí)\StudyProgram\zip壓縮與解壓\File\學(xué)籍導(dǎo)入模板.xls";
//ZipHelper.ZipFile(filePath, @"D:\程序文件\VS2010學(xué)習(xí)\StudyProgram\zip壓縮與解壓\File\test.zip", 6, "123");
var dirPath = @"D:\程序文件\VS2010學(xué)習(xí)\StudyProgram\zip壓縮與解壓";
//ZipHelper.ZipDir(dirPath + @"\File", dirPath + @"\File.zip", 6, "huage");
ZipHelper.UnZip(dirPath + @"\File.zip", dirPath + @"\test", "huage");
Console.ReadKey();
}效果圖如下:

以上是“C#如何使用ICSharpCode.SharpZipLib.dll進(jìn)行文件的壓縮與解壓功能”這篇文章的所有內(nèi)容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內(nèi)容對(duì)大家有所幫助,如果還想學(xué)習(xí)更多知識(shí),歡迎關(guān)注創(chuàng)新互聯(lián)行業(yè)資訊頻道!
文章名稱:C#如何使用ICSharpCode.SharpZipLib.dll進(jìn)行文件的壓縮與解壓功能
文章起源:http://www.chinadenli.net/article20/piejjo.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供網(wǎng)站收錄、網(wǎng)站建設(shè)、自適應(yīng)網(wǎng)站、品牌網(wǎng)站建設(shè)、建站公司、App設(shè)計(jì)
聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請(qǐng)盡快告知,我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如需處理請(qǐng)聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時(shí)需注明來(lái)源: 創(chuàng)新互聯(lián)