一、 添加引用
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二、引入命名空间
using System.IO;
using System.IO.Compression;
三、实现代码
#region .NET Framework 4.5 ZipArchive类 压缩、解压
/// <summary>
/// ZipArchive压缩
/// </summary>
/// <param name="str_ZipFilePath">压缩文件存放的路径（如：/UploadFiles/quber.zip）</param>
/// <param name="str_OldFilePath">压缩文件的上级文件夹名称路径（如：/UploadFiles/）</param>
/// <param name="bl_IsDeleteZip">是否首先删除已经存在的zip压缩包</param>
public static bool ZAZIP(string str_ZipFilePath, string str_OldFilePath, bool bl_IsDeleteZip)
{
bool bl_Result = false;
try
{
//删除已经存在的压缩包
DeleteFile(str_ZipFilePath);
//若压缩包的文件夹路径不存在，则创建
string str_CreateZipFilePath = str_ZipFilePath.Substring(0, str_ZipFilePath.Length - (str_ZipFilePath.Length - str_ZipFilePath.LastIndexOf("/")));
CreateFilePath(str_CreateZipFilePath);
string[] str_AllFileName = GetAllFileName(str_OldFilePath);
using (var zip = ZipFile.Open(System.Web.HttpContext.Current.Server.MapPath(str_ZipFilePath), ZipArchiveMode.Create))
{
if (str_AllFileName.Length > 0)
{
for (int i = 0; i < str_AllFileName.Length; i++)
{
zip.CreateEntryFromFile(System.Web.HttpContext.Current.Server.MapPath(str_OldFilePath) + str_AllFileName[i], str_AllFileName[i]);
bl_Result = true;
}
}
}
return bl_Result;
}
catch (Exception)
{
return bl_Result;
}
}
/// <summary>
/// ZipArchive解压
/// </summary>
/// <param name="str_UNZipFilePath">解压的文件路径（如：/UploadFiles/quber.zip）</param>
/// <param name="str_UNZipFileToPath">解压到的文件路径（如：/UploadFiles/UNZipFile/）</param>
/// <param name="IsDeleteFile">是否删除解压到的文件夹中已经存在的文件</param>
/// <returns></returns>
public static bool UNZAZIP(string str_UNZipFilePath, string str_UNZipFileToPath, bool IsDeleteFile)
{
bool bl_Result = false;
try
{
if (IsDeleteFile)
{
// 列出压缩压缩文件
using (FileStream zipFileToOpen = new FileStream(System.Web.HttpContext.Current.Server.MapPath(str_UNZipFilePath), FileMode.Open))
using (ZipArchive archive = new ZipArchive(zipFileToOpen, ZipArchiveMode.Read))
{
foreach (var zipArchiveEntry in archive.Entries)
{
DeleteFile(str_UNZipFileToPath + zipArchiveEntry.FullName);
}
}
}
ZipFile.ExtractToDirectory(System.Web.HttpContext.Current.Server.MapPath(str_UNZipFilePath), System.Web.HttpContext.Current.Server.MapPath(str_UNZipFileToPath));
bl_Result = true;
return bl_Result;
}
catch (Exception)
{
return bl_Result;
}
}
/// <summary>
/// 获取文件夹下的所有文件名称
/// </summary>
/// <param name="str_FilePath">文件夹路径名称（如：/UploadFiles/）</param>
/// <returns></returns>
public static string[] GetAllFileName(string str_FilePath)
{
string[] str_AllFileName = { };
try
{
DirectoryInfo di = new DirectoryInfo(System.Web.HttpContext.Current.Server.MapPath(str_FilePath));
FileSystemInfo[] dis = di.GetFileSystemInfos();
if (dis.Length > 0)
{
str_AllFileName = new string[dis.Length];
int i_Count = 0;
foreach (FileSystemInfo fitemp in dis)
{
str_AllFileName[i_Count] = fitemp.Name;
i_Count++;
}
}
return str_AllFileName;
}
catch (Exception)
{
return str_AllFileName;
}
}
/// <summary>
/// 创建文件夹
/// </summary>
/// <param name="str_FolderPath">/UploadFiles/</param>
public static void CreateFilePath(string str_FolderPath)
{
string str_Path = System.Web.HttpContext.Current.Server.MapPath(str_FolderPath);
if (!System.IO.Directory.Exists(str_Path))
System.IO.Directory.CreateDirectory(str_Path);
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="str_DataFilePath">/UploadFiles/name.txt</param>
public static void DeleteFile(string str_DataFilePath)
{
if (System.IO.File.Exists(System.Web.HttpContext.Current.Server.MapPath(str_DataFilePath)))
System.IO.File.Delete(System.Web.HttpContext.Current.Server.MapPath(str_DataFilePath));
}
#endregion
四、 调用示例
bool bl_Result = ZAZIP("/UploadFiles/quber.zip", "/UploadFiles/", true);
bool bl_Result = UNZAZIP("/UploadFiles/quber.zip", "/UploadFiles/UNZipFile/", true);
