前言
本篇主要记录：VS2019 WinFrm桌面应用程序调用SharpZipLib，实现文件的简单压缩和解压缩功能。
SharpZipLib 开源地址戳这里。
准备工作
搭建WinFrm前台界面
添加必要的控件，这里主要应用到GroupBox、Label、TextBox、CheckBox和Button，如下图
核心代码
构造ZipHelper类
代码如下：
1 using ICSharpCode.SharpZipLib.Checksum; 2 using ICSharpCode.SharpZipLib.Zip; 3 using System; 4 using System.Collections.Generic; 5 using System.IO; 6 using System.Linq; 7 using System.Text; 8 using System.Threading.Tasks; 9 10 namespace ZipUnzip 11 { 12 class ZipHelper 13 { 14 private string rootPath = string.Empty; 15 16 #region 压缩 17 18 ///19 /// 递归压缩文件夹的内部方法 20 /// 21 /// 要压缩的文件夹路径 22 /// 压缩输出流 23 /// 此文件夹的上级文件夹 24 /// 25 private bool ZipDirectory(string folderToZip, ZipOutputStream zipStream, string parentFolderName) 26 { 27 bool result = true; 28 string[] folders, files; 29 ZipEntry ent = null; 30 FileStream fs = null; 31 Crc32 crc = new Crc32(); 32 33 try 34 { 35 string entName = folderToZip.Replace(this.rootPath, string.Empty) + "/"; 36 //Path.Combine(parentFolderName, Path.GetFileName(folderToZip) + "/") 37 ent = new ZipEntry(entName); 38 zipStream.PutNextEntry(ent); 39 zipStream.Flush(); 40 41 files = Directory.GetFiles(folderToZip); 42 foreach (string file in files) 43 { 44 fs = File.OpenRead(file); 45 46 byte[] buffer = new byte[fs.Length]; 47 fs.Read(buffer, 0, buffer.Length); 48 ent = new ZipEntry(entName + Path.GetFileName(file)); 49 ent.DateTime = DateTime.Now; 50 ent.Size = fs.Length; 51 52 fs.Close(); 53 54 crc.Reset(); 55 crc.Update(buffer); 56 57 ent.Crc = crc.Value; 58 zipStream.PutNextEntry(ent); 59 zipStream.Write(buffer, 0, buffer.Length); 60 } 61 62 } 63 catch 64 { 65 result = false; 66 } 67 finally 68 { 69 if (fs != null) 70 { 71 fs.Close(); 72 fs.Dispose(); 73 } 74 if (ent != null) 75 { 76 ent = null; 77 } 78 GC.Collect(); 79 GC.Collect(1); 80 } 81 82 folders = Directory.GetDirectories(folderToZip); 83 foreach (string folder in folders) 84 if (!ZipDirectory(folder, zipStream, folderToZip)) 85 return false; 86 87 return result; 88 } 89 90 /// 91 /// 压缩文件夹 92 /// 93 /// 要压缩的文件夹路径 94 /// 压缩文件完整路径 95 /// 密码 96 /// 是否压缩成功 97 public bool ZipDirectory(string folderToZip, string zipedFile, string password) 98 { 99 bool result = false; 100 if (!Directory.Exists(folderToZip)) 101 return result; 102 103 ZipOutputStream zipStream = new ZipOutputStream(File.Create(zipedFile)); 104 zipStream.SetLevel(6); 105 if (!string.IsNullOrEmpty(password)) zipStream.Password = password; 106 107 result = ZipDirectory(folderToZip, zipStream, ""); 108 109 zipStream.Finish(); 110 zipStream.Close(); 111 112 return result; 113 } 114 115 /// 116 /// 压缩文件夹 117 /// 118 /// 要压缩的文件夹路径 119 /// 压缩文件完整路径 120 /// 是否压缩成功 121 public bool ZipDirectory(string folderToZip, string zipedFile) 122 { 123 bool result = ZipDirectory(folderToZip, zipedFile, null); 124 return result; 125 } 126 127 /// 128 /// 压缩文件 129 /// 130 /// 要压缩的文件全名 131 /// 压缩后的文件名 132 /// 密码 133 /// 压缩结果 134 public bool ZipFile(string fileToZip, string zipedFile, string password) 135 { 136 bool result = true; 137 ZipOutputStream zipStream = null; 138 FileStream fs = null; 139 ZipEntry ent = null; 140 141 if (!File.Exists(fileToZip)) 142 return false; 143 144 try 145 { 146 fs = File.OpenRead(fileToZip); 147 byte[] buffer = new byte[fs.Length]; 148 fs.Read(buffer, 0, buffer.Length); 149 fs.Close(); 150 151 fs = File.Create(zipedFile); 152 zipStream = new ZipOutputStream(fs); 153 if (!string.IsNullOrEmpty(password)) zipStream.Password = password; 154 ent = new ZipEntry(Path.GetFileName(fileToZip)); 155 zipStream.PutNextEntry(ent); 156 zipStream.SetLevel(6); 157 158 zipStream.Write(buffer, 0, buffer.Length); 159 160 } 161 catch 162 { 163 result = false; 164 } 165 finally 166 { 167 if (zipStream != null) 168 { 169 zipStream.Finish(); 170 zipStream.Close(); 171 } 172 if (ent != null) 173 { 174 ent = null; 175 } 176 if (fs != null) 177 { 178 fs.Close(); 179 fs.Dispose(); 180 } 181 } 182 GC.Collect(); 183 GC.Collect(1); 184 185 return result; 186 } 187 188 /// 189 /// 压缩文件 190 /// 191 /// 要压缩的文件全名 192 /// 压缩后的文件名 193 /// 压缩结果 194 public bool ZipFile(string fileToZip, string zipedFile) 195 { 196 bool result = ZipFile(fileToZip, zipedFile, null); 197 return result; 198 } 199 200 /// 201 /// 压缩文件或文件夹 202 /// 203 /// 要压缩的路径 204 /// 压缩后的文件名 205 /// 密码 206 /// 压缩结果 207 public bool Zip(string fileToZip, string zipedFile, string password) 208 { 209 bool result = false; 210 if (Directory.Exists(fileToZip)) 211 { 212 this.rootPath = Path.GetDirectoryName(fileToZip); 213 result = ZipDirectory(fileToZip, zipedFile, password); 214 } 215 else if (File.Exists(fileToZip)) 216 { 217 this.rootPath = Path.GetDirectoryName(fileToZip); 218 result = ZipFile(fileToZip, zipedFile, password); 219 } 220 return result; 221 } 222 223 /// 224 /// 压缩文件或文件夹 225 /// 226 /// 要压缩的路径 227 /// 压缩后的文件名 228 /// 压缩结果 229 public bool Zip(string fileToZip, string zipedFile) 230 { 231 bool result = Zip(fileToZip, zipedFile, null); 232 return result; 233 234 } 235 236 #endregion 237 238 #region 解压 239 240 /// 241 /// 解压功能(解压压缩文件到指定目录) 242 /// 243 /// 待解压的文件 244 /// 指定解压目标目录 245 /// 密码 246 /// 解压结果 247 public bool UnZip(string fileToUnZip, string zipedFolder, string password) 248 { 249 bool result = true; 250 FileStream fs = null; 251 ZipInputStream zipStream = null; 252 ZipEntry ent = null; 253 string fileName; 254 255 if (!File.Exists(fileToUnZip)) 256 return false; 257 258 if (!Directory.Exists(zipedFolder)) 259 Directory.CreateDirectory(zipedFolder); 260 261 try 262 { 263 zipStream = new ZipInputStream(File.OpenRead(fileToUnZip)); 264 if (!string.IsNullOrEmpty(password)) zipStream.Password = password; 265 while ((ent = zipStream.GetNextEntry()) != null) 266 { 267 if (!string.IsNullOrEmpty(ent.Name)) 268 { 269 fileName = Path.Combine(zipedFolder, ent.Name); 270 fileName = fileName.Replace('/', '\\');//change by Mr.HopeGi 271 272 if (fileName.EndsWith("\\")) 273 { 274 Directory.CreateDirectory(fileName); 275 continue; 276 } 277 278 fs = File.Create(fileName); 279 int size = 2048; 280 byte[] data = new byte[size]; 281 while (true) 282 { 283 size = zipStream.Read(data, 0, data.Length); 284 if (size > 0) 285 fs.Write(data, 0, data.Length); 286 else 287 break; 288 } 289 } 290 } 291 } 292 catch 293 { 294 result = false; 295 } 296 finally 297 { 298 if (fs != null) 299 { 300 fs.Close(); 301 fs.Dispose(); 302 } 303 if (zipStream != null) 304 { 305 zipStream.Close(); 306 zipStream.Dispose(); 307 } 308 if (ent != null) 309 { 310 ent = null; 311 } 312 GC.Collect(); 313 GC.Collect(1); 314 } 315 return result; 316 } 317 318 /// 319 /// 解压功能(解压压缩文件到指定目录) 320 /// 321 /// 待解压的文件 322 /// 指定解压目标目录 323 /// 解压结果 324 public bool UnZip(string fileToUnZip, string zipedFolder) 325 { 326 bool result = UnZip(fileToUnZip, zipedFolder, null); 327 return result; 328 } 329 330 #endregion 331 } 332 }
主窗体代码如下：
1 using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.IO; 7 using System.Linq; 8 using System.Text; 9 using System.Threading.Tasks; 10 using System.Windows.Forms; 11 12 namespace ZipUnzip 13 { 14 public partial class FrmMain : Form 15 { 16 public FrmMain() 17 { 18 InitializeComponent(); 19 } 20 21 ///22 /// Unzip/Zip Operation 23 /// 24 /// 25 /// 26 private void chbZip_CheckedChanged(object sender, EventArgs e) 27 { 28 if (this.chbZip.Checked) 29 { 30 if (this.chbUnzip.Checked) 31 { 32 this.chbUnzip.Checked = false; 33 } 34 } 35 } 36 37 /// 38 /// Unzip/Zip Operation 39 /// 40 /// 41 /// 42 private void chbUnzip_CheckedChanged(object sender, EventArgs e) 43 { 44 if (this.chbUnzip.Checked) 45 { 46 if (this.chbZip.Checked) 47 { 48 this.chbZip.Checked = false; 49 } 50 } 51 } 52 53 /// 54 /// Choose File Directory 55 /// 56 /// 57 /// 58 private void btnChoose_Click(object sender, EventArgs e) 59 { 60 if (this.chbZip.Checked) 61 { 62 FolderBrowserDialog folderDialog = new FolderBrowserDialog(); 63 folderDialog.Description = "Choose File Directory"; 64 folderDialog.RootFolder = Environment.SpecialFolder.Desktop; 65 DialogResult dr = folderDialog.ShowDialog(this); 66 if (dr == DialogResult.OK) 67 { 68 this.txtSFP.Text = folderDialog.SelectedPath; 69 } 70 } 71 else if (this.chbUnzip.Checked) 72 { 73 OpenFileDialog fileDialog = new OpenFileDialog(); 74 fileDialog.Title = "Choose Zip Files"; 75 fileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop); 76 DialogResult dr = fileDialog.ShowDialog(this); 77 if (dr == DialogResult.OK) 78 { 79 this.txtSFP.Text = fileDialog.FileName; 80 } 81 } 82 } 83 84 /// 85 /// Zip/Unzip 86 /// 87 /// 88 /// 89 private void btnDo_Click(object sender, EventArgs e) 90 { 91 // Check 92 if ((!this.chbZip.Checked) & (!this.chbUnzip.Checked)) 93 { 94 MessageBox.Show("Please choose operation type!", "Error"); 95 return; 96 } 97 // Zip 98 if (this.chbZip.Checked) 99 { 100 try 101 { 102 string src = this.txtSFP.Text; 103 string dest = AppDomain.CurrentDomain.BaseDirectory + @"\zipfolder\ZIP" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".zip"; 104 if (!Directory.Exists(Path.GetDirectoryName(dest))) 105 { 106 Directory.CreateDirectory(Path.GetDirectoryName(dest)); 107 } 108 ZipHelper zipHelper = new ZipHelper(); 109 bool flag = zipHelper.Zip(src, dest); 110 if (flag) 111 { 112 SaveFileDialog fileDialog = new SaveFileDialog(); 113 fileDialog.Title = "Save Zip Package"; 114 fileDialog.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.Desktop); 115 fileDialog.FileName = Path.GetFileName(dest); 116 if (fileDialog.ShowDialog() == DialogResult.OK) 117 { 118 File.Copy(dest, fileDialog.FileName, true); 119 this.txtDFP.Text = fileDialog.FileName; 120 } 121 MessageBox.Show(this, "Zip Success!", "Info", MessageBoxButtons.OK); 122 } 123 else 124 { 125 MessageBox.Show(this, "Zip Failed", "Error", MessageBoxButtons.OK); 126 } 127 } 128 catch (Exception ex) 129 { 130 MessageBox.Show("Zip Failed, Err info[" + ex.Message + "]", "Error"); 131 } 132 133 } 134 135 // Unzip 136 if (this.chbUnzip.Checked) 137 { 138 try 139 { 140 FolderBrowserDialog folderDialog = new FolderBrowserDialog(); 141 folderDialog.Description = "Choose Unzip Directory"; 142 folderDialog.RootFolder = Environment.SpecialFolder.Desktop; 143 DialogResult dr = folderDialog.ShowDialog(this); 144 if (dr == DialogResult.OK) 145 { 146 string destPath = folderDialog.SelectedPath + @"\" + Path.GetFileNameWithoutExtension(this.txtDFP.Text); 147 ZipHelper zipHelper = new ZipHelper(); 148 zipHelper.UnZip(this.txtSFP.Text, destPath); 149 this.txtDFP.Text = destPath; 150 } 151 MessageBox.Show("Unzip Success!", "Info"); 152 } 153 catch (Exception ex) 154 { 155 MessageBox.Show("Unzip Failed, Err info[" + ex.Message + "]", "Error"); 156 } 157 158 } 159 } 160 } 161 }
实现效果
作者：Jeremy.Wu
出处：https://www.cnblogs.com/jeremywucnblog/
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