(一). 实现功能
对文件及目录的压缩及解压功能
(二). 运行图片示例
(三).代码
1. 压缩类
1
/// <summary>
2
/// 压缩类
3
/// </summary>
4
public class ZipClass
5{
6 public static void ZipFile(string FileToZip, string ZipedFile, int CompressionLevel, int BlockSize)
7
{
8 //如果文件没有找到，则报错
9 if (!System.IO.File.Exists(FileToZip))
10 {
11 throw new System.IO.FileNotFoundException("指定要压缩的文件: " + FileToZip + " 不存在!");
12
}
13
14 System.IO.FileStream StreamToZip = new System.IO.FileStream(FileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read);
15 System.IO.FileStream ZipFile = System.IO.File.Create(ZipedFile);
16 ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
17 ZipEntry ZipEntry = new ZipEntry("ZippedFile");
18 ZipStream.PutNextEntry(ZipEntry);
19 ZipStream.SetLevel(CompressionLevel);
20 byte[] buffer = new byte[BlockSize];
21 System.Int32 size = StreamToZip.Read(buffer, 0, buffer.Length);
22 ZipStream.Write(buffer, 0, size);
23 try
24 {
25 while (size < StreamToZip.Length)
26 {
27 int sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);
28 ZipStream.Write(buffer, 0, sizeRead);
29 size += sizeRead;
30 }
31 }
32 catch (System.Exception ex)
33 {
34 throw ex;
35 }
36 ZipStream.Finish();
37 ZipStream.Close();
38 StreamToZip.Close();
39 }
40
41 /// <summary>
42 /// 压缩目录
43 /// </summary>
44 /// <param name="args">数组(数组[0]: 要压缩的目录; 数组[1]: 压缩的文件名)</param>
45 public static void ZipFileDictory(string[] args)
46 {
47 string[] filenames = Directory.GetFiles(args[0]);
48
49 Crc32 crc = new Crc32();
50 ZipOutputStream s = new ZipOutputStream(File.Create(args[1]));
51 s.SetLevel(6);
52 foreach (string file in filenames)
53 {
54 //打开压缩文件
55 FileStream fs = File.OpenRead(file);
56
57 byte[] buffer = new byte[fs.Length];
58 fs.Read(buffer, 0, buffer.Length);
59 ZipEntry entry = new ZipEntry(file);
60
61 entry.DateTime = DateTime.Now;
62
63 entry.Size = fs.Length;
64 fs.Close();
65
66 crc.Reset();
67 crc.Update(buffer);
68
69 entry.Crc = crc.Value;
70
71 s.PutNextEntry(entry);
72
73 s.Write(buffer, 0, buffer.Length);
74
75 }
76
77 s.Finish();
78 s.Close();
79 }
80
81 /// <summary>
82 /// 压缩文件
83 /// </summary>
84 /// <param name="FileToZip">要进行压缩的文件名</param>
85 /// <param name="ZipedFile">压缩后生成的压缩文件名</param>
86 public static void ZipFile(string FileToZip, string ZipedFile)
87 {
88 //如果文件没有找到，则报错
89 if (!File.Exists(FileToZip))
90 {
91 throw new System.IO.FileNotFoundException("指定要压缩的文件: " + FileToZip + " 不存在!");
92 }
93 FileStream fs = File.OpenRead(FileToZip);
94 byte[] buffer = new byte[fs.Length];
95 fs.Read(buffer, 0, buffer.Length);
96 fs.Close();
97
98 FileStream ZipFile = File.Create(ZipedFile);
99 ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);
100 ZipEntry ZipEntry = new ZipEntry("ZippedFile");
101 ZipStream.PutNextEntry(ZipEntry);
102 ZipStream.SetLevel(6);
103
104 ZipStream.Write(buffer, 0, buffer.Length);
105 ZipStream.Finish();
106 ZipStream.Close();
107 }
108}
109
110/// <summary>
111/// 解压类
112/// </summary>
113public class UnZipClass
114{
115 /// <summary>
116 /// 解压功能(解压压缩文件到指定目录)
117 /// </summary>
118 /// <param name="args">待解压的文件</param>
119 /// <param name="args">指定解压目标目录</param>
120 public static void UnZip(string[] args)
121![]()
/// <summary>
2
/// 压缩类3
/// </summary>4
public class ZipClass5
{ 
6
public static void ZipFile(string FileToZip, string ZipedFile, int CompressionLevel, int BlockSize)7
{
8
//如果文件没有找到，则报错9
if (!System.IO.File.Exists(FileToZip))10
{11
throw new System.IO.FileNotFoundException("指定要压缩的文件: " + FileToZip + " 不存在!");12
}13
14
System.IO.FileStream StreamToZip = new System.IO.FileStream(FileToZip, System.IO.FileMode.Open, System.IO.FileAccess.Read);15
System.IO.FileStream ZipFile = System.IO.File.Create(ZipedFile);16
ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);17
ZipEntry ZipEntry = new ZipEntry("ZippedFile");18
ZipStream.PutNextEntry(ZipEntry);19
ZipStream.SetLevel(CompressionLevel);20
byte[] buffer = new byte[BlockSize];21
System.Int32 size = StreamToZip.Read(buffer, 0, buffer.Length);22
ZipStream.Write(buffer, 0, size);23
try24
{25
while (size < StreamToZip.Length)26
{27
int sizeRead = StreamToZip.Read(buffer, 0, buffer.Length);28
ZipStream.Write(buffer, 0, sizeRead);29
size += sizeRead;30
}31
}32
catch (System.Exception ex)33
{34
throw ex;35
}36
ZipStream.Finish();37
ZipStream.Close();38
StreamToZip.Close();39
}40
41
/// <summary>42
/// 压缩目录43
/// </summary>44
/// <param name="args">数组(数组[0]: 要压缩的目录; 数组[1]: 压缩的文件名)</param>45
public static void ZipFileDictory(string[] args)46
{47
string[] filenames = Directory.GetFiles(args[0]);48
49
Crc32 crc = new Crc32();50
ZipOutputStream s = new ZipOutputStream(File.Create(args[1])); 51
s.SetLevel(6); 52
foreach (string file in filenames)53
{54
//打开压缩文件55
FileStream fs = File.OpenRead(file);56
57
byte[] buffer = new byte[fs.Length];58
fs.Read(buffer, 0, buffer.Length);59
ZipEntry entry = new ZipEntry(file);60
61
entry.DateTime = DateTime.Now;62
63
entry.Size = fs.Length;64
fs.Close();65
66
crc.Reset();67
crc.Update(buffer);68
69
entry.Crc = crc.Value;70
71
s.PutNextEntry(entry);72
73
s.Write(buffer, 0, buffer.Length);74
75
}76
77
s.Finish();78
s.Close();79
}80
81
/// <summary>82
/// 压缩文件83
/// </summary>84
/// <param name="FileToZip">要进行压缩的文件名</param>85
/// <param name="ZipedFile">压缩后生成的压缩文件名</param>86
public static void ZipFile(string FileToZip, string ZipedFile)87
{88
//如果文件没有找到，则报错89
if (!File.Exists(FileToZip))90
{91
throw new System.IO.FileNotFoundException("指定要压缩的文件: " + FileToZip + " 不存在!");92
} 93
FileStream fs = File.OpenRead(FileToZip);94
byte[] buffer = new byte[fs.Length];95
fs.Read(buffer, 0, buffer.Length);96
fs.Close();97
98
FileStream ZipFile = File.Create(ZipedFile);99
ZipOutputStream ZipStream = new ZipOutputStream(ZipFile);100
ZipEntry ZipEntry = new ZipEntry("ZippedFile");101
ZipStream.PutNextEntry(ZipEntry);102
ZipStream.SetLevel(6);103
104
ZipStream.Write(buffer, 0, buffer.Length); 105
ZipStream.Finish();106
ZipStream.Close();107
}108
}109
110
/// <summary>111
/// 解压类112
/// </summary>113
public class UnZipClass114
{115
/// <summary>116
/// 解压功能(解压压缩文件到指定目录)117
/// </summary>118
/// <param name="args">待解压的文件</param>119
/// <param name="args">指定解压目标目录</param>120
public static void UnZip(string[] args)121