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资源说明：zip压缩相关
1using System;
2using System.Collections.Generic;
3using System.Text;
4using System.IO;
5using ICSharpCode.SharpZipLib;
6using ICSharpCode.SharpZipLib.Zip;
7using ICSharpCode.SharpZipLib.Checksums;
8
9/*
10 * 解压缩
11 * 该程序压缩和解压配合才能使用
12 * 普通用 Winrar 压缩的文件该解压不能通过
13 * Modify By HJ 2007-10-25
14 */
15namespace ZipApplication
16{
17 ///
18 /// 压缩类
19 ///
20 public class ZipClass
21 {
22 ///
23 /// 递归压缩文件夹方法
24 ///
25 ///
26 ///
27 ///
28 private static bool ZipFileDictory(string FolderToZip, ZipOutputStream s, string ParentFolderName)
29 {
30 bool res = true;
31 string[] folders, filenames;
32 ZipEntry entry = null;
33 FileStream fs = null;
34 Crc32 crc = new Crc32();
35
36 try
37 {
38
39 //创建当前文件夹
40 entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/")); //加上 “/” 才会当成是文件夹创建
41 s.PutNextEntry(entry);
42 s.Flush();
43
44
45 //先压缩文件，再递归压缩文件夹
46 filenames = Directory.GetFiles(FolderToZip);
47 foreach (string file in filenames)
48 {
49 //打开压缩文件
50 fs = File.OpenRead(file);
51
52 byte[] buffer = new byte[fs.Length];
53 fs.Read(buffer, 0, buffer.Length);
54 entry = new ZipEntry(Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip) + "/" + Path.GetFileName(file)));
55
56 entry.DateTime = DateTime.Now;
57 entry.Size = fs.Length;
58 fs.Close();
59
60 crc.Reset();
61 crc.Update(buffer);
62
63 entry.Crc = crc.Value;
64
65 s.PutNextEntry(entry);
66
67 s.Write(buffer, 0, buffer.Length);
68 }
69 }
70 catch
71 {
72 res = false;
73 }
74 finally
75 {
76 if (fs != null)
77 {
78 fs.Close();
79 fs = null;
80 }
81 if (entry != null)
82 {
83 entry = null;
84 }
85 GC.Collect();
86 GC.Collect(1);
87 }
88
89
90 folders = Directory.GetDirectories(FolderToZip);
91 foreach (string folder in folders)
92 {
93 if (!ZipFileDictory(folder, s, Path.Combine(ParentFolderName, Path.GetFileName(FolderToZip))))
94 {
95 return false;
96 }
97 }
98
99 return res;
100 }
101
102 ///
103 /// 压缩目录
104 ///
105 /// 待压缩的文件夹，全路径格式
106 /// 压缩后的文件名，全路径格式
107 ///
129 /// 压缩文件
130 ///
131 /// 要进行压缩的文件名
132 /// 压缩后生成的压缩文件名
133 ///
191 /// 压缩文件 和 文件夹
192 ///
193 /// 待压缩的文件或文件夹，全路径格式
194 /// 压缩后生成的压缩文件名，全路径格式
195 ///
/// 解压类
///
public class UnZipClass
{
///
/// 解压功能(解压压缩文件到指定目录)
///
/// 待解压的文件
/// 指定解压目标目录
public static void UnZip(string FileToUpZip, string ZipedFolder,string Password)
{
if (!File.Exists(FileToUpZip))
{
return;
}
if (!Directory.Exists(ZipedFolder))
{
Directory.CreateDirectory(ZipedFolder);
}
ZipInputStream s = null;
ZipEntry theEntry = null;
string fileName;
FileStream streamWriter = null;
try
{
s = new ZipInputStream(File.OpenRead(FileToUpZip));
s.Password = Password;
while ((theEntry = s.GetNextEntry()) != null)
{
if (theEntry.Name != String.Empty)
{
fileName = Path.Combine(ZipedFolder, theEntry.Name);
///判断文件路径是否是文件夹
if (fileName.EndsWith("/") || fileName.EndsWith("\\"))
{
Directory.CreateDirectory(fileName);
continue;
}
streamWriter = File.Create(fileName);
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
finally
{
if (streamWriter != null)
{
streamWriter.Close();
streamWriter = null;
}
if (theEntry != null)
{
theEntry = null;
}
if (s != null)
{
s.Close();
s = null;
}
GC.Collect();
GC.Collect(1);
}
}
}
}
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