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413 lines
15 KiB
C#

using System;
using System.IO;
using System.Linq;
using System.Text;
namespace EntrustSettle.Common.Helper
{
public class FileHelper : IDisposable
{
private bool _alreadyDispose = false;
#region 构造函数
public FileHelper()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
~FileHelper()
{
Dispose(); ;
}
protected virtual void Dispose(bool isDisposing)
{
if (_alreadyDispose) return;
_alreadyDispose = true;
}
#endregion
#region IDisposable 成员
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
#endregion
#region 取得文件后缀名
/****************************************
* GetPostfixStr
*
* filename:
*
* string filename = "aaa.aspx";
* string s = EC.FileObj.GetPostfixStr(filename);
*****************************************/
/// <summary>
/// 取后缀名
/// </summary>
/// <param name="filename">文件名</param>
/// <returns>.gif|.html格式</returns>
public static string GetPostfixStr(string filename)
{
int start = filename.LastIndexOf(".");
int length = filename.Length;
string postfix = filename.Substring(start, length - start);
return postfix;
}
#endregion
#region 根据文件大小获取指定前缀的可用文件名
/// <summary>
/// 根据文件大小获取指定前缀的可用文件名
/// </summary>
/// <param name="folderPath">文件夹</param>
/// <param name="prefix">文件前缀</param>
/// <param name="size">文件大小(1m)</param>
/// <param name="ext">文件后缀(.log)</param>
/// <returns>可用文件名</returns>
public static string GetAvailableFileWithPrefixOrderSize(string folderPath, string prefix, int size = 1 * 1024 * 1024, string ext = ".log")
{
var allFiles = new DirectoryInfo(folderPath);
var selectFiles = allFiles.GetFiles().Where(fi => fi.Name.ToLower().Contains(prefix.ToLower()) && fi.Extension.ToLower() == ext.ToLower() && fi.Length < size).OrderByDescending(d => d.Name).ToList();
if (selectFiles.Count > 0)
{
return selectFiles.FirstOrDefault().FullName;
}
return Path.Combine(folderPath, $@"{prefix}_{DateTime.Now.DateToTimeStamp()}.log");
}
public static string GetAvailableFileNameWithPrefixOrderSize(string _contentRoot, string prefix, int size = 1 * 1024 * 1024, string ext = ".log")
{
var folderPath = Path.Combine(_contentRoot, "Log");
if (!Directory.Exists(folderPath))
{
Directory.CreateDirectory(folderPath);
}
var allFiles = new DirectoryInfo(folderPath);
var selectFiles = allFiles.GetFiles().Where(fi => fi.Name.ToLower().Contains(prefix.ToLower()) && fi.Extension.ToLower() == ext.ToLower() && fi.Length < size).OrderByDescending(d => d.Name).ToList();
if (selectFiles.Count > 0)
{
return selectFiles.FirstOrDefault().Name.Replace(".log", "");
}
return $@"{prefix}_{DateTime.Now.DateToTimeStamp()}";
}
#endregion
#region 写文件
/****************************************
* WriteFile
* ,
* Path:,Strings:
*
* string Path = Server.MapPath("Default2.aspx");
* string Strings = "这是我写的内容啊";
* EC.FileObj.WriteFile(Path,Strings);
*****************************************/
/// <summary>
/// 写文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <param name="Strings">文件内容</param>
public static void WriteFile(string Path, string Strings)
{
if (!File.Exists(Path))
{
FileStream f = File.Create(Path);
f.Close();
}
StreamWriter f2 = new StreamWriter(Path, false, System.Text.Encoding.GetEncoding("gb2312"));
f2.Write(Strings);
f2.Close();
f2.Dispose();
}
/// <summary>
/// 写文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <param name="Strings">文件内容</param>
public static void WriteFile(string Path, byte[] buf)
{
if (!File.Exists(Path))
{
FileStream f = File.Create(Path);
f.Close();
}
FileStream f2 = new FileStream(Path, FileMode.Create, FileAccess.Write);
f2.Write(buf, 0, buf.Length);
f2.Close();
f2.Dispose();
}
/// <summary>
/// 写文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <param name="Strings">文件内容</param>
/// <param name="encode">编码格式</param>
public static void WriteFile(string Path, string Strings, Encoding encode)
{
if (!File.Exists(Path))
{
FileStream f = File.Create(Path);
f.Close();
}
StreamWriter f2 = new StreamWriter(Path, false, encode);
f2.Write(Strings);
f2.Close();
f2.Dispose();
}
#endregion
#region 读文件
/****************************************
* ReadFile
*
* Path:
*
* string Path = Server.MapPath("Default2.aspx");
* string s = EC.FileObj.ReadFile(Path);
*****************************************/
/// <summary>
/// 读文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <returns></returns>
public static string ReadFile(string Path)
{
string s = "";
if (!File.Exists(Path))
s = "不存在相应的目录";
else
{
StreamReader f2 = new StreamReader(Path, System.Text.Encoding.GetEncoding("gb2312"));
s = f2.ReadToEnd();
f2.Close();
f2.Dispose();
}
return s;
}
/// <summary>
/// 读文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <param name="encode">编码格式</param>
/// <returns></returns>
public static string ReadFile(string Path, Encoding encode)
{
string s = "";
if (!File.Exists(Path))
s = "不存在相应的目录";
else
{
StreamReader f2 = new StreamReader(Path, encode);
s = f2.ReadToEnd();
f2.Close();
f2.Dispose();
}
return s;
}
#endregion
#region 追加文件
/****************************************
* FileAdd
*
* Path:,strings:
*
* string Path = Server.MapPath("Default2.aspx");
* string Strings = "新追加内容";
* EC.FileObj.FileAdd(Path, Strings);
*****************************************/
/// <summary>
/// 追加文件
/// </summary>
/// <param name="Path">文件路径</param>
/// <param name="strings">内容</param>
public static void FileAdd(string Path, string strings)
{
StreamWriter sw = File.AppendText(Path);
sw.Write(strings);
sw.Flush();
sw.Close();
}
#endregion
#region 拷贝文件
/****************************************
* FileCoppy
*
* OrignFile:,NewFile:
*
* string orignFile = Server.MapPath("Default2.aspx");
* string NewFile = Server.MapPath("Default3.aspx");
* EC.FileObj.FileCoppy(OrignFile, NewFile);
*****************************************/
/// <summary>
/// 拷贝文件
/// </summary>
/// <param name="OrignFile">原始文件</param>
/// <param name="NewFile">新文件路径</param>
public static void FileCoppy(string orignFile, string NewFile)
{
File.Copy(orignFile, NewFile, true);
}
#endregion
#region 删除文件
/****************************************
* FileDel
*
* Path:
*
* string Path = Server.MapPath("Default3.aspx");
* EC.FileObj.FileDel(Path);
*****************************************/
/// <summary>
/// 删除文件
/// </summary>
/// <param name="Path">路径</param>
public static void FileDel(string Path)
{
File.Delete(Path);
}
#endregion
#region 移动文件
/****************************************
* FileMove
*
* OrignFile:,NewFile:
*
* string orignFile = Server.MapPath("../说明.txt");
* string NewFile = Server.MapPath("http://www.cnblogs.com/说明.txt");
* EC.FileObj.FileMove(OrignFile, NewFile);
*****************************************/
/// <summary>
/// 移动文件
/// </summary>
/// <param name="OrignFile">原始路径</param>
/// <param name="NewFile">新路径</param>
public static void FileMove(string orignFile, string NewFile)
{
File.Move(orignFile, NewFile);
}
#endregion
#region 在当前目录下创建目录
/****************************************
* FolderCreate
*
* OrignFolder:,NewFloder:
*
* string orignFolder = Server.MapPath("test/");
* string NewFloder = "new";
* EC.FileObj.FolderCreate(OrignFolder, NewFloder);
*****************************************/
/// <summary>
/// 在当前目录下创建目录
/// </summary>
/// <param name="OrignFolder">当前目录</param>
/// <param name="NewFloder">新目录</param>
public static void FolderCreate(string orignFolder, string NewFloder)
{
Directory.SetCurrentDirectory(orignFolder);
Directory.CreateDirectory(NewFloder);
}
#endregion
#region 递归删除文件夹目录及文件
/****************************************
* DeleteFolder
*
* dir:
*
* string dir = Server.MapPath("test/");
* EC.FileObj.DeleteFolder(dir);
*****************************************/
/// <summary>
/// 递归删除文件夹目录及文件
/// </summary>
/// <param name="dir"></param>
/// <returns></returns>
public static void DeleteFolder(string dir)
{
if (Directory.Exists(dir)) //如果存在这个文件夹删除之
{
foreach (string d in Directory.GetFileSystemEntries(dir))
{
if (File.Exists(d))
File.Delete(d); //直接删除其中的文件
else
DeleteFolder(d); //递归删除子文件夹
}
Directory.Delete(dir); //删除已空文件夹
}
}
#endregion
#region 将指定文件夹下面的所有内容copy到目标文件夹下面 果目标文件夹为只读属性就会报错。
/****************************************
* CopyDir
* copy
* srcPath:,aimPath:
*
* string srcPath = Server.MapPath("test/");
* string aimPath = Server.MapPath("test1/");
* EC.FileObj.CopyDir(srcPath,aimPath);
*****************************************/
/// <summary>
/// 指定文件夹下面的所有内容copy到目标文件夹下面
/// </summary>
/// <param name="srcPath">原始路径</param>
/// <param name="aimPath">目标文件夹</param>
public static void CopyDir(string srcPath, string aimPath)
{
try
{
// 检查目标目录是否以目录分割字符结束如果不是则添加之
if (aimPath[aimPath.Length - 1] != Path.DirectorySeparatorChar)
aimPath += Path.DirectorySeparatorChar;
// 判断目标目录是否存在如果不存在则新建之
if (!Directory.Exists(aimPath))
Directory.CreateDirectory(aimPath);
// 得到源目录的文件列表,该里面是包含文件以及目录路径的一个数组
//如果你指向copy目标文件下面的文件而不包含目录请使用下面的方法
//string[] fileList = Directory.GetFiles(srcPath);
string[] fileList = Directory.GetFileSystemEntries(srcPath);
//遍历所有的文件和目录
foreach (string file in fileList)
{
//先当作目录处理如果存在这个目录就递归Copy该目录下面的文件
if (Directory.Exists(file))
CopyDir(file, aimPath + Path.GetFileName(file));
//否则直接Copy文件
else
File.Copy(file, aimPath + Path.GetFileName(file), true);
}
}
catch (Exception ee)
{
throw new Exception(ee.ToString());
}
}
#endregion
}
}