/// <summary>
/// 解压单个文件 到 指定文件
/// 注意：单个文件的文件名，要指定在rar文件中的相对路径
/// </summary>
/// <param name="sourceRarFileName"></param>
/// <param name="sourceFileName"></param>
/// <param name="destFileName"></param>
/// <returns></returns>
public I3MsgInfo UnCompressASingleFile(string sourceRarFileName, string sourceFileName, string destFileName)
{
#region 先删除目的文件
if (!I3FileUtil.CheckFileNotExists(destFileName))
{
return(new I3MsgInfo(false, ""));
}
#endregion
#region 获取临时目录与临时文件名
string tmpDir = I3DirectoryUtil.GetAppTmpTmpDir();
string tmpFileName = Path.Combine(tmpDir, Path.GetFileName(sourceFileName));
#endregion
I3MsgInfo msg = I3DirectoryUtil.CreateDirectoryByFileName(tmpFileName);
#region 创建临时目录
if (!msg.State)
{
return(msg);
}
#endregion
try
{
#region 生成命令行参数
string cmdLine;
cmdLine = " E -Y ";
if (!string.IsNullOrEmpty(passWord))
{
cmdLine = cmdLine + " -p" + I3StringUtil.AppendDoubleQuotes(passWord) + " ";
}
cmdLine = cmdLine + I3StringUtil.AppendDoubleQuotes(sourceRarFileName) + " "
+ I3StringUtil.AppendDoubleQuotes(sourceFileName) + " "
+ I3StringUtil.AppendDoubleQuotes(tmpDir);
#endregion
//执行
msg = RunCmdLine(cmdLine);
if (!msg.State)
{
return(msg);
}
//检查临时文件
if (!File.Exists(tmpFileName))
{
return(new I3MsgInfo(false, "未知错误，临时文件未生成！文件名：" + tmpFileName));
}
//移动
return(I3FileUtil.MoveFile(tmpFileName, destFileName, true));
}
finally
{
I3DirectoryUtil.DeleteDirctory(tmpDir);
}
}
/// <summary>
/// 初始化
/// </summary>
/// <param name="fileName"></param>
/// <param name="type"></param>
public void Init(string fileName, Type type)
{
this.fileName = fileName;
I3MsgInfo msg = I3DirectoryUtil.CreateDirectoryByFileName(fileName);
if (!msg.State)
{
throw msg.ExpMsg == null ? new Exception(msg.Message) : msg.ExpMsg;
}
this.type = type;
}
/// <summary>
/// 解压所有文件到指定的目录
///
/// checkFileIsNormal:解压时，是否在fileInfoList中检查其状态为normal，为normal时才解压
/// 此功能用于更换或者删除文件时，同时，为normal状态的fileinfo.fullName将被更新，指示现在被解压到了哪里
///
/// </summary>
/// <param name="aNewPath"></param>
/// <returns></returns>
public I3MsgInfo UnCompressAllFile(string aNewPath, bool checkFileIsNormal)
{
if (!fileExists)
{
return(I3MsgInfo.Default);
}
I3MsgInfo msg;
#region 定义变量
string message = "";
ZipInputStream inputStream = null;
int normalFileCount = GetNormalFileCount();
long totalNormalFileSize = GetTotalNormalFileSize(); //所有需要解压的文件的字节数
long passFileSize = 0; //已经解压掉的文件的字节数
long totalPosition = 0; //总共解压到的字节数
#endregion
try
{
inputStream = new ZipInputStream(File.OpenRead(fileName));
if (!string.IsNullOrEmpty(passWord))
{
inputStream.Password = passWord;
}
ZipEntry theEntry;
int fileindex = 0;
while ((theEntry = inputStream.GetNextEntry()) != null)
{
I3SharpZipFileInfo normalInfo = null;
#region 检查文件是否为normal状态
if (checkFileIsNormal)
{
bool isNormal = false;
foreach (I3SharpZipFileInfo info in fileInfoList)
{
if (info.FileName.Equals(theEntry.Name))
{
isNormal = info.Mode == I3SZFileInfoMode.szimNormal;
normalInfo = info;
break;
}
}
if (!isNormal)
{
continue;
}
}
#endregion
#region 获取目的文件名，并生成目录 normalInfo不为空时，更新FullName
string aNewFileName = Path.Combine(aNewPath, theEntry.Name);
if (normalInfo != null)
{
normalInfo.FullName = aNewFileName;
}
msg = I3DirectoryUtil.CreateDirectoryByFileName(aNewFileName);
if (!msg.State)
{
return(msg);
}
#endregion
#region 发送文件个数进度信息
message = "正在解压文件" + theEntry.Name + "到" + aNewFileName;
fileindex++;
OnMutiFileProcessReport(normalFileCount, fileindex, message);
#endregion
#region 如果是目录则不需要解压 文件大小为0且文件名最后一个字符是/表示是目录
if ((theEntry.Size.Equals(0) && (I3StringUtil.SubString(theEntry.Name, theEntry.Name.Length - 1).Equals("/"))))
{
continue;
}
#endregion
#region 定义单个文件的变量
FileStream streamWriter = null;
#endregion
try
{
#region 解压
streamWriter = File.Create(aNewFileName);
byte[] data = new byte[blockSize];
long longsize = 0;
while (true)
{
int size = inputStream.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
longsize += size;
OnSingleFileProcessReport(theEntry.Size, longsize, message);
totalPosition = passFileSize + longsize;
OnTotalBytesProcessReport(totalNormalFileSize, totalPosition, message);
}
else
{
break;
}
}
passFileSize += longsize;
#endregion
}
finally
{
#region 释放单个文件的变量
if (streamWriter != null)
{
streamWriter.Close();
}
#endregion
}
}
return(I3MsgInfo.Default);
}
#region 错误处理
catch (Exception ex)
{
return(new I3MsgInfo(false, ex.Message, ex));
}
#endregion
#region 释放inputStream
finally
{
if (inputStream != null)
{
inputStream.Close();
}
}
#endregion
}
/// <summary>
/// 根据文件信息从压缩包中获取单个文件，需要指定FullName
/// </summary>
/// <param name="aFileInfo"></param>
/// <returns></returns>
public I3MsgInfo UnCompressSingleFile(I3SharpZipFileInfo aFileInfo)
{
#region 检查文件名与上级目录
if (string.IsNullOrEmpty(aFileInfo.FullName))
{
return(new I3MsgInfo(false, "未设置目的路径！"));
}
I3MsgInfo msg = I3DirectoryUtil.CreateDirectoryByFileName(aFileInfo.FullName);
if (!msg.State)
{
return(msg);
}
string message = "正在解压文件" + aFileInfo.FileName + "到" + aFileInfo.FullName;
#endregion
#region 检查是否是目录 文件大小为0且文件名最后一个字符是/表示是目录
if ((aFileInfo.FileSize.Equals(0) && (I3StringUtil.SubString(aFileInfo.FileName, aFileInfo.FileName.Length - 1).Equals("/"))))
{
return(I3MsgInfo.Default);
}
#endregion
bool result = false;
ZipInputStream inputStream = null;
try
{
inputStream = new ZipInputStream(File.OpenRead(fileName));
if (!string.IsNullOrEmpty(passWord))
{
inputStream.Password = passWord;
}
ZipEntry theEntry;
while ((theEntry = inputStream.GetNextEntry()) != null)
{
#region 判断文件名是否为要解压的文件
if (!theEntry.Name.Equals(aFileInfo.FileName))
{
continue;
}
#endregion
#region 定义单个文件的变量
FileStream streamWriter = null;
#endregion
try
{
#region 解压
streamWriter = File.Create(aFileInfo.FullName);
byte[] data = new byte[blockSize];
long longsize = 0;
while (true)
{
int size = inputStream.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
longsize += size;
OnSingleFileProcessReport(aFileInfo.FileSize, longsize, message);
}
else
{
break;
}
}
#endregion
}
finally
{
#region 释放单个文件的变量
if (streamWriter != null)
{
streamWriter.Close();
}
#endregion
}
result = true;
}
}
#region 错误处理
catch (Exception ex)
{
return(new I3MsgInfo(false, ex.Message, ex));
}
#endregion
#region 释放inputStream
finally
{
if (inputStream != null)
{
inputStream.Close();
}
}
#endregion
return(new I3MsgInfo(result, ""));
}
