using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
namespace Utility
{
/// <summary>
/// @Author:梁继龙
/// @Date：2012/8/1
/// @Email:[email protected]
/// @Description:文件处理类
/// </summary>
public class AccessDirFileHelper
{
public static AccessDirFileHelper instance = null;
private static readonly object lockObj = new object();
protected static System.Reflection.Assembly assembly = null; //反射
/// <summary>
/// 单例模式
/// </summary>
/// <returns></returns>
public static AccessDirFileHelper GetInstance()
{
//lock (AccessFileHelper.instance){ }
if (instance == null)
{
lock (lockObj)
{
instance = new AccessDirFileHelper();
}
}
return instance;
}
/// <summary>
/// 获取当前进程的完整路径，包含文件名(进程名)
/// result: X:\xxx\xxx\xxx.exe (.exe文件所在的目录+.exe文件名
/// </summary>
/// <returns></returns>
public string GetLocalProcessFileName()
{
try
{
return this.GetType().Assembly.Location;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取新的 Process 组件并将其与当前活动的进程关联的主模块的完整路径，包含文件名(进程名).
//result: X:\xxx\xxx\xxx.exe (.exe文件所在的目录+.exe文件名)
/// </summary>
/// <returns></returns>
public string GetCurrentProcessFileNamePath()
{
try
{
return System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取和设置当前目录（即该进程从中启动的目录）的完全限定路径.
/// result: X:\xxx\xxx (.exe文件所在的目录)
/// </summary>
/// <returns></returns>
public String GetCurrentEnvironmentDirectoryPath()
{
try
{
return System.Environment.CurrentDirectory;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取当前 Thread 的当前应用程序域的基目录，它由程序集冲突解决程序用来探测程序集。
///string str = System.AppDomain.CurrentDomain.BaseDirectory;
///result: X:\xxx\xxx\ (.exe文件所在的目录+"\")
///Example：用来判断winfrom会少一个Debug E:\\ASP.NET\\MyApp\\WebApp\\bin\\Debug\\bin\\Utility.dll" web
///Example：用来判断winfrom会多一个Debug E:\\ASP.NET\\MyApp\\WinApp\\bin\\Debug\\Utility.dll" winform
///此方法一般判断一个解决方案启动是web还是winform读取文件(dll，config,txt等..)看情况定
/// </summary>
public string GetCurrentDomainBaseDirectory()
{
try
{ //效果一样
//System.Threading.Thread.GetDomain().BaseDirectory
return System.AppDomain.CurrentDomain.BaseDirectory;
}
catch (Exception e)
{
throw e;
}
}
/// <summary>
/// 获取和设置包含该应用程序的目录的名称。
///string str = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
///result: X:\xxx\xxx\ (.exe文件所在的目录+"\")
/// </summary>
/// <returns></returns>
public string GetCurrentDomainSetupInformationName()
{
try
{
return System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取启动了应用程序的可执行文件的路径，不包括可执行文件的名称
/// string str = System.Windows.Forms.Application.StartupPath;
/// result: X:\xxx\xxx (.exe文件所在的目录)
/// </summary>
/// <returns></returns>
public string GetWindowsApplicationStartupPath()
{
try
{
return System.Windows.Forms.Application.StartupPath;
}
catch (Exception e)
{
throw e;
}
}
/// <summary>
///获取启动了应用程序的可执行文件的路径，包括可执行文件的名称。
///string str = System.Windows.Forms.Application.ExecutablePath;
///result: X:\xxx\xxx\xxx.exe (.exe文件所在的目录+.exe文件名)
/// </summary>
/// <returns></returns>
public string GetWindowsExecutablePath()
{
try
{
return System.Windows.Forms.Application.ExecutablePath;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 获取应用程序的当前工作目录(不可靠)
/// /string str = System.IO.Directory.GetCurrentDirectory();
/// result: X:\xxx\xxx (.exe文件所在的目录)
/// </summary>
/// <returns></returns>
public string GetCurrentDirectory()
{
try
{
return System.IO.Directory.GetCurrentDirectory();
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 这个方法的意思是:在同一个解决方案里面有两个工程,启动的时候
/// 去判断哪个工程是Winform或者是Web的配置
///Example：E:\\ASP.NET\\MyApp\\WinApp\\bin\\Debug\\MyApp.vshost.exe.Config" //winform
///Example："E:\\ASP.NET\\MyApp\\WebApp\\web.config" //web
///从后面的配置截取Example:String index=Path3.Substring(config.Length - 8);截取
///后面字符串判去判断,最好把都转换成小写或者大写
///index.ToUpper()="E.CONFIG" / index.ToLower()=="e.config"
/// </summary>
/// <returns></returns>
public System.Reflection.Assembly GetCurrentDomainConfigurationFile(string executeWinformConfig, string executeWebConfig)
{
try
{
string config = AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
string index = config.Substring(config.Length - 8);
if (index.ToLower() == "e.config") //把截取到的字符串转为为小写
{
assembly = System.Reflection.Assembly.LoadFile(executeWinformConfig); //加载dll文件
}
if (index.ToLower() == "b.config")
{
assembly = System.Reflection.Assembly.LoadFile(executeWebConfig); //加载dll文件
}
return assembly;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 无参数的GetCurrentDomainConfigurationFile方法
/// GetCurrentDomainConfigurationFile
/// </summary>
/// <returns></returns>
public string GetCurrentDomainConfigurationFile()
{
try
{
return AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// Application.StartupPath与AppDomain.CurrentDomain.BaseDirectory都是判断
/// 当前启动的工程,并体现能找到
/// Example：E:\\ASP.NET\\MyApp\\MyApp\\bin\\Debug路径下面,唯有不同的就是
/// AppDomain.CurrentDomain.BaseDirectory多了个 \\
/// Application.StartupPath而且是System.Windows.Forms
/// </summary>
/// <returns></returns>
public string GetStartupPath()
{
try
{
return System.Windows.Forms.Application.StartupPath;
}
catch (Exception)
{
throw;
}
}
/// <summary>
/// 获取文件的大小,一般指文件有多少个字节
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public string GetFileSize(string fileName)
{
try
{
if (File.Exists(fileName))
{
return Convert.ToString(new FileInfo(fileName).Length);
}
else
return fileName;
}
catch (Exception)
{
throw;
}
}
///<summary>
///在卸载程序获取系统安装的目录：
///System.Reflection.Assembly curPath = System.Reflection.Assembly.GetExecutingAssembly();
/// string path=curPath.Location;//得到安装程序类SetupLibrary文件的路径，获取这个文件路径
///所在的目录即得到安装程序的目录;
///</summary>
/// <returns></returns>
public String GetExecutingAssemblyDirectory()
{
try
{
System.Reflection.Assembly curPath = System.Reflection.Assembly.GetExecutingAssembly();
string path = curPath.Location;
return path;
}
catch (Exception ex)
{
throw ex;
}
}
#region
/// <summary>
/// 创建目录
/// </summary>
/// <param name="dir">此地路径相对站点而言</param>
public static void CreateDir(string dir)
{
if (dir.Length == 0) return;
if (!System.IO.Directory.Exists(System.Web.HttpContext.Current.Server.MapPath(dir)))
System.IO.Directory.CreateDirectory(System.Web.HttpContext.Current.Server.MapPath(dir));
}
/// <summary>
/// 创建目录路径
/// </summary>
/// <param name="folderPath">物理路径</param>
public static void CreateFolder(string folderPath)
{
if (!System.IO.Directory.Exists(folderPath))
System.IO.Directory.CreateDirectory(folderPath);
}
/// <summary>
/// 删除目录
/// </summary>
/// <param name="dir">此地路径相对站点而言</param>
public static void DeleteDir(string dir)
{
if (dir.Length == 0) return;
if (System.IO.Directory.Exists(System.Web.HttpContext.Current.Server.MapPath(dir)))
System.IO.Directory.Delete(System.Web.HttpContext.Current.Server.MapPath(dir), true);
}
/// <summary>
/// 判断文件是否存在
/// </summary>
/// <param name="file">格式:a/b.htm,相对根目录</param>
/// <returns></returns>
public static bool FileExists(string file)
{
if (File.Exists(System.Web.HttpContext.Current.Server.MapPath(file)))
return true;
else
return false;
}
/// <summary>
/// 读取文件内容
/// </summary>
/// <param name="file">格式:a/b.htm,相对根目录</param>
/// <returns></returns>
public static string ReadFile(string file)
{
if (!FileExists(file))
return "";
try
{
System.IO.StreamReader sr = new System.IO.StreamReader(System.Web.HttpContext.Current.Server.MapPath(file), System.Text.Encoding.UTF8);
string str = sr.ReadToEnd();
sr.Close();
return str;
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 保存为不带Bom的文件
/// </summary>
/// <param name="TxtStr"></param>
/// <param name="tempDir">格式:a/b.htm,相对根目录</param>
public static void SaveFile(string TxtStr, string tempDir)
{
SaveFile(TxtStr, tempDir, true);
}
/// <summary>
/// 保存文件内容,自动创建目录
/// </summary>
/// <param name="TxtStr"></param>
/// <param name="tempDir">格式:a/b.htm,相对根目录</param>
/// <param name="noBom"></param>
public static void SaveFile(string TxtStr, string tempDir, bool noBom)
{
try
{
CreateDir(GetFolderPath(true, tempDir));
System.IO.StreamWriter sw;
if (noBom)
sw = new System.IO.StreamWriter(System.Web.HttpContext.Current.Server.MapPath(tempDir), false, new System.Text.UTF8Encoding(false));
else
sw = new System.IO.StreamWriter(System.Web.HttpContext.Current.Server.MapPath(tempDir), false, System.Text.Encoding.UTF8);
sw.Write(TxtStr);
sw.Close();
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 复制文件
/// 这个方法在6.0版本后改写，虽看似比前面的版本冗长，但避免了file2文件一直被占用的问题
/// </summary>
/// <param name="file1"></param>
/// <param name="file2"></param>
/// <param name="overwrite">如果已经存在是否覆盖？</param>
public static void CopyFile(string file1, string file2, bool overwrite)
{
if (System.IO.File.Exists(System.Web.HttpContext.Current.Server.MapPath(file1)))
{
if (overwrite)
System.IO.File.Copy(System.Web.HttpContext.Current.Server.MapPath(file1), System.Web.HttpContext.Current.Server.MapPath(file2), true);
else
{
if (!System.IO.File.Exists(System.Web.HttpContext.Current.Server.MapPath(file2)))
System.IO.File.Copy(System.Web.HttpContext.Current.Server.MapPath(file1), System.Web.HttpContext.Current.Server.MapPath(file2));
}
}
}
/// <summary>
/// 删除文件
/// </summary>
/// <param name="file">此地路径相对程序路径而言</param>
public static void DeleteFile(string file)
{
if (file.Length == 0) return;
if (System.IO.File.Exists(System.Web.HttpContext.Current.Server.MapPath(file)))
System.IO.File.Delete(System.Web.HttpContext.Current.Server.MapPath(file));
}
/// <summary>
/// 获得文件的目录路径
/// </summary>
/// <param name="filePath">文件路径</param>
/// <returns>以\结尾</returns>
public static string GetFolderPath(string filePath)
{
return GetFolderPath(false, filePath);
}
/// <summary>
/// 获得文件的目录路径
/// </summary>
/// <param name="isUrl">是否是网址</param>
/// <param name="filePath">文件路径</param>
/// <returns>以\或/结尾</returns>
public static string GetFolderPath(bool isUrl, string filePath)
{
if (isUrl)
return filePath.Substring(0, filePath.LastIndexOf("/") + 1);
else
return filePath.Substring(0, filePath.LastIndexOf("\\") + 1);
}
/// <summary>
/// 获得文件的名称
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string GetFileName(string filePath)
{
return GetFileName(false, filePath);
}
/// <summary>
/// 获得文件的名称
/// </summary>
/// <param name="isUrl">是否是网址</param>
/// <param name="filePath"></param>
/// <returns></returns>
public static string GetFileName(bool isUrl, string filePath)
{
if (isUrl)
return filePath.Substring(filePath.LastIndexOf("/") + 1, filePath.Length - filePath.LastIndexOf("/") - 1);
else
return filePath.Substring(filePath.LastIndexOf("\\") + 1, filePath.Length - filePath.LastIndexOf("\\") - 1);
}
/// <summary>
/// 获得文件的后缀
/// 不带点，小写
/// </summary>
/// <param name="filePath"></param>
/// <returns></returns>
public static string GetFileExt(string filePath)
{
return filePath.Substring(filePath.LastIndexOf(".") + 1, filePath.Length - filePath.LastIndexOf(".") - 1).ToLower();
}
/// <summary>
/// 目录拷贝
/// </summary>
/// <param name="OldDir"></param>
/// <param name="NewDir"></param>
public static void CopyDir(string OldDir, string NewDir)
{
DirectoryInfo OldDirectory = new DirectoryInfo(OldDir);
DirectoryInfo NewDirectory = new DirectoryInfo(NewDir);
CopyDir(OldDirectory, NewDirectory);
}
private static void CopyDir(DirectoryInfo OldDirectory, DirectoryInfo NewDirectory)
{
string NewDirectoryFullName = NewDirectory.FullName + "\\" + OldDirectory.Name;
if (!Directory.Exists(NewDirectoryFullName))
Directory.CreateDirectory(NewDirectoryFullName);
FileInfo[] OldFileAry = OldDirectory.GetFiles();
foreach (FileInfo aFile in OldFileAry)
File.Copy(aFile.FullName, NewDirectoryFullName + "\\" + aFile.Name, true);
DirectoryInfo[] OldDirectoryAry = OldDirectory.GetDirectories();
foreach (DirectoryInfo aOldDirectory in OldDirectoryAry)
{
DirectoryInfo aNewDirectory = new DirectoryInfo(NewDirectoryFullName);
CopyDir(aOldDirectory, aNewDirectory);
}
}
/// <summary>
/// 目录删除
/// </summary>
/// <param name="OldDir"></param>
public static void DelDir(string OldDir)
{
DirectoryInfo OldDirectory = new DirectoryInfo(OldDir);
OldDirectory.Delete(true);
}
/// <summary>
/// 目录剪切
/// </summary>
/// <param name="OldDirectory"></param>
/// <param name="NewDirectory"></param>
public static void CopyAndDelDir(string OldDirectory, string NewDirectory)
{
CopyDir(OldDirectory, NewDirectory);
DelDir(OldDirectory);
}
/// <summary>
/// 文件下载
/// </summary>
/// <param name="_Request"></param>
/// <param name="_Response"></param>
/// <param name="_fullPath">源文件路径</param>
/// <param name="_speed"></param>
/// <returns></returns>
public static bool DownloadFile(System.Web.HttpRequest _Request, System.Web.HttpResponse _Response, string _fullPath, long _speed)
{
string _fileName = GetFileName(false, _fullPath);
try
{
FileStream myFile = new FileStream(_fullPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
BinaryReader br = new BinaryReader(myFile);
try
{
_Response.AddHeader("Accept-Ranges", "bytes");
_Response.Buffer = false;
long fileLength = myFile.Length;
long startBytes = 0;
double pack = 10240; //10K bytes
//int sleep = 200; //每秒5次 即5*10K bytes每秒
int sleep = (int)Math.Floor(1000 * pack / _speed) + 1;
if (_Request.Headers["Range"] != null)
{
_Response.StatusCode = 206;
string[] range = _Request.Headers["Range"].Split(new char[] { ‘=‘, ‘-‘ });
startBytes = Convert.ToInt64(range[1]);
}
_Response.AddHeader("Content-Length", (fileLength - startBytes).ToString());
_Response.AddHeader("Connection", "Keep-Alive");
_Response.ContentType = "application/octet-stream";
_Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(_fileName, System.Text.Encoding.UTF8));
br.BaseStream.Seek(startBytes, SeekOrigin.Begin);
int maxCount = (int)Math.Floor((fileLength - startBytes) / pack) + 1;
for (int i = 0; i < maxCount; i++)
{
if (_Response.IsClientConnected)
{
_Response.BinaryWrite(br.ReadBytes(int.Parse(pack.ToString())));
System.Threading.Thread.Sleep(sleep);
}
else
{
i = maxCount;
}
}
}
catch
{
return false;
}
finally
{
br.Close();
myFile.Close();
}
}
catch
{
return false;
}
return true;
}
#endregion
}
}