/// <summary>
/// 将一个文件或一个文件夹及其子文件夹和子文件添加到压缩包内
/// </summary>
/// <param name="zipStream">要添加文件的压缩文件输出流</param>
/// <param name="fileSystem">要添加的文件或文件夹</param>
/// <param name="rootPath">该文件或文件夹在压缩文件内的父级路径</param>
public static void AddEntry(ZipOutputStream zipStream, FileSystemInfo fileSystem, string rootPath = "")
{
ZipEntry zipEntry = null;
Console.WriteLine(fileSystem.FullName);
//如果是文件夹
if (fileSystem is DirectoryInfo)
{
//创建压缩文件内的路劲
zipEntry = new ZipEntry(Path.Combine(rootPath, fileSystem.Name + "\\"));
//调用事件通知外部处理事件信息
OnCompress?.Invoke(fileSystem.Name, 1, 1f, true);
//将压缩文件内的文件夹路径添加到压缩文件输出流
zipStream.PutNextEntry(zipEntry);
//遍历文件夹下的子文件夹，子文件递归添加
foreach (FileSystemInfo nextFileSystem in (fileSystem as DirectoryInfo).GetFileSystemInfos())
{
AddEntry(zipStream, nextFileSystem, zipEntry.Name);
}
}
//如果是文件
else
{
//创建压缩文件内的路劲
zipEntry = new ZipEntry(Path.Combine(rootPath, fileSystem.Name));
//将压缩文件内的文件夹路径添加到压缩文件输出流
zipStream.PutNextEntry(zipEntry);
//读取文件数据
using (FileStream readFile = new FileStream(fileSystem.FullName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
////将读文件流的索引定位到文件的开头
//readFile.Seek(0, SeekOrigin.Begin);
//定义一个1k的数据包
byte[] readDataBytes = new byte[1024];
//定义一个变量存放已读取的数据的总大小
uint totalReadNum = 0;
//只要读文件流的索引小于文件最大长度就不停的循环读取文件
while (readFile.Position < readFile.Length)
{
try
{
//读取文件并得到当前实际读取到的数据的大小
int readNum = readFile.Read(readDataBytes, 0, readDataBytes.Length);
//更新已读取的数据的总大小
totalReadNum += (uint)readNum;
//调用事件通知外部处理事件信息
OnCompress?.Invoke(fileSystem.Name, totalReadNum, readFile.Length, false);
//将文件数据写入到压缩文件输出流内
zipStream.WriteAsync(readDataBytes, 0, readNum).Wait();
}catch (Exception ex)
{
//有可能会发生文件占用，文件不存在等异常
LogUtil.WriteException(ex.ToString());
}
}
}
}
}
/// <summary>
/// 添加一个文件或文件夹到一个已有的压缩文件中
/// </summary>
/// <param name="fileSystem">文件或文件夹对象</param>
/// <param name="zipStream">压缩文件流</param>
/// <param name="root">文件或文件夹在压缩文件内的父目录</param>
public static void AddEntry(FileSystemInfo fileSystem, ZipOutputStream zipStream, string root = "")
{
if (fileSystem == null || !fileSystem.Exists)
{
return;
}
if (zipStream == null)
{
return;
}
ZipEntry zipEntry = null;
Debug.Print(string.Format("正在压缩{0}", fileSystem.Name));
if (fileSystem.Attributes.HasFlag(FileAttributes.Directory))
{
zipEntry = new ZipEntry(Path.Combine(root, fileSystem.Name + "\\"));
zipStream.PutNextEntry(zipEntry);
OnCompress?.Invoke(fileSystem.Name, 1, 1, true);
foreach (FileSystemInfo fileSystemInfo in (fileSystem as DirectoryInfo).GetFileSystemInfos())
{
AddEntry(fileSystemInfo, zipStream, zipEntry.Name);
}
}
else
{
zipEntry = new ZipEntry(Path.Combine(root, fileSystem.Name));
zipStream.PutNextEntry(zipEntry);
try
{
using (FileStream readStream = new FileStream(fileSystem.FullName, FileMode.Open, FileAccess.Read, FileShare.Read))
{
byte[] dataBytes = new byte[10240];
int readNum = 0;
uint totalReadNum = 0;
while (readStream.Position < readStream.Length)
{
readNum = readStream.Read(dataBytes, 0, dataBytes.Length);
totalReadNum += (uint)readNum;
OnCompress?.Invoke(fileSystem.Name, totalReadNum, readStream.Length, false);
zipStream.Write(dataBytes, 0, readNum);
}
}
}
catch (Exception ex)
{
throw ex;
}
}
}
