用c#写一个基于dotnet的解压缩带密码的zip的能显示解压进度百分比的代码
时间: 2024-09-16 11:04:28 浏览: 60
在C#中,你可以使用`System.IO.Compression.ZipFile`类结合.NET Core的异步操作来实现带密码的ZIP文件解压缩并显示进度。以下是示例代码:
```csharp
using System;
using System.IO;
using System.Threading.Tasks;
using System.IO.Compression;
public async Task DecompressWithPasswordAndProgress(string zipFilePath, string password, string destinationFolder)
{
// 创建一个目录,如果不存在的话
if (!Directory.Exists(destinationFolder))
{
Directory.CreateDirectory(destinationFolder);
}
// 设置解压密码
byte[] passwordBytes = Encoding.UTF8.GetBytes(password);
using (FileStream fs = File.OpenRead(zipFilePath))
using (MemoryStream memoryStream = new MemoryStream())
{
// 解密压缩流
using (DeflateStream decompressor = new DeflateStream(fs, CompressionMode.Decompress, true, passwordBytes))
{
// 将解压内容写入内存流
memoryStream.Write(decompressor.ToArray());
}
// 写入到磁盘,模拟解压
using (FileStream outputStream = File.Create($"{destinationFolder}/extracted.zip"))
{
memoryStream.Seek(0, SeekOrigin.Begin);
outputStream.Write(memoryStream.ToArray());
}
}
// 创建一个任务列表来跟踪进度
var tasks = new List<Task>();
int totalEntries = GetTotalEntriesFromZip(destinationFolder + "/extracted.zip");
for (int i = 0; i < totalEntries; i++)
{
tasks.Add(ExtractEntryWithProgress(destinationFolder + "/extracted.zip", i + 1, totalEntries));
}
await Task.WhenAll(tasks);
Console.WriteLine("解压完成!");
}
private static int GetTotalEntriesFromZip(string zipPath)
{
// 通过IO的方式获取ZIP文件内的条目数量,这里仅作示例,实际情况下可能需要更复杂的方法
ZipArchive archive = ZipFile.OpenRead(zipPath);
return archive.Entries.Count;
}
private async Task ExtractEntryWithProgress(string zipPath, int index, int totalEntries)
{
ZipArchiveEntry entry = ZipFile.OpenRead(zipPath).GetEntry(index.ToString());
await ExtractAndReportProgress(entry, $"{index}/{totalEntries}");
}
private async Task ExtractAndReportProgress(ZipArchiveEntry entry, string message)
{
try
{
// 实际解压并忽略进度,这里只打印消息做演示
await Task.Delay(100); // 这里可以改为真正的解压操作
Console.WriteLine(message + " 解压中...");
}
catch (Exception ex)
{
Console.WriteLine($"解压出错: {ex.Message}");
}
}
// 调用解压缩方法
DecompressWithPasswordAndProgress("path_to_your_zip_file.zip", "your_password", "destination_folder");
```
这个代码首先解密ZIP文件,然后逐个解压ZIP中的每个条目,每解压一个就打印一条进度信息。实际应用中,你需要替换`ExtractAndReportProgress`方法中的`Task.Delay`为真正的解压操作。
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