using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
namespace 测试File.Business
{
public class FileHelper
{
#region 文件分割
public static string FileSplit(string filePath, string path, long SplitFileSize)
{
Console.WriteLine("正在分解文件:" + System.IO.Path.GetFileName(filePath) + "请稍候......");
var flag = string.Empty;
if (string.IsNullOrEmpty(filePath))
{
flag = "文件路径不能为空";
}
if (string.IsNullOrEmpty(path))
{
flag = "目标路径不能为空";
}
long readLocation = 0;
Stream stream = File.OpenRead(filePath);
byte[] by = new byte[SplitFileSize];
string item = "0";
try
{
BufferedStream buffered = new BufferedStream(stream, 1024);
BinaryReader reader = new BinaryReader(buffered);
long len = reader.BaseStream.Length;
var loopSize = (Convert.ToInt32(Math.Ceiling((double)stream.Length / by.Length)));
for (int i = 0; i < loopSize; i++)
{
if ((i + 1).ToString().Length == 1)
{
item = "00";
}
else if ((i + 1).ToString().Length == 2)
{
item = "0";
}
else
{
item = string.Empty;
}
reader.BaseStream.Seek(readLocation, SeekOrigin.Begin);
by = reader.ReadBytes(by.Length);
using (BinaryWriter writer = new BinaryWriter(File.Open(path + @"\" + System.IO.Path.GetFileName(filePath) + "." + ((i + 1).ToString()), FileMode.Create)))
{
writer.Write(by);
writer.Flush();
}
readLocation = (by.Length) * (i + 1);
}
flag = "文件分割成功";
}
catch (Exception ex)
{
flag = "文件分割失败";
}
Console.WriteLine("文件分解完成");
return flag;
}
#endregion
#region 合并文件
/// <summary>
/// 文件合并
/// </summary>
/// <param name="path">文件组集合路径</param>
/// <param name="targetPath">合并之后的保存路径</param>
/// <param name="SplitFileSize">已多大字节去合并</param>
public static void MergeFileAttr(string path, string targetPath, long SplitFileSize)
{
int z = 0;
Console.WriteLine("正在合并文件:请稍候......");
byte[] by = new byte[SplitFileSize];
DirectoryInfo directory = new DirectoryInfo(path);
//获取路径下的分割文件集合
FileInfo[] fileInfos = directory.GetFiles();
//文件进行排序的集合
ArrayList array = SortAsFileName(path);
foreach (FileInfo item in fileInfos)
{
var lastLen = item.FullName.LastIndexOf(".");
var fileFullName = item.FullName.Substring(0, item.FullName.Length - (item.FullName.Length - lastLen)) + "." + array[z];
z += 1;
using (BufferedStream buffered = new BufferedStream(File.OpenRead(fileFullName)))
{
using (BinaryReader stream = new BinaryReader(buffered))
{
using (BinaryWriter writer = new BinaryWriter(File.Open(targetPath + @"\" + "merge.pdf", FileMode.Append)))
{
if (stream.BaseStream.Length != SplitFileSize)
{
byte[] temp = new byte[stream.BaseStream.Length];
stream.BaseStream.Read(temp, 0, temp.Length);
writer.Write(temp);
}
else
{
stream.BaseStream.Read(by, 0, by.Length);
writer.Write(by);
}
}
}
}
}
Console.WriteLine("文件合并完成");
}
#endregion
#region 对文件列表进行排序
/// <summary>
/// 对文件列表进行排序
/// </summary>
/// <param name="arrFi"></param>
private static ArrayList SortAsFileName(string path)
{
ArrayList list = new ArrayList();
DirectoryInfo directory = new DirectoryInfo(path);
//获取路径下的分割文件集合
FileInfo[] fileInfos = directory.GetFiles();
foreach (var item in fileInfos)
{
var len = System.IO.Path.GetFileName(item.FullName).LastIndexOf(".");
var totalSize = System.IO.Path.GetFileName(item.FullName);
var res = int.Parse(totalSize.Substring(len + 1, totalSize.Length - len - 1));
list.Add(res);
}
list.Sort();
return list;
}
#endregion
#region 检测指定目录是否存在
/// <summary>
/// 检测指定目录是否存在
/// </summary>
/// <param name="directoryPath">目录的绝对路径</param>
/// <returns></returns>
public static bool IsExistDirectory(string directoryPath)
{
return Directory.Exists(directoryPath);
}
#endregion
#region 检测指定文件是否存在,如果存在返回true
/// <summary>
/// 检测指定文件是否存在,如果存在则返回true。
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static bool IsExistFile(string filePath)
{
return File.Exists(filePath);
}
#endregion
#region 获取指定目录中的文件列表
/// <summary>
/// 获取指定目录中所有文件列表
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static string[] GetFileNames(string directoryPath)
{
//如果目录不存在，则抛出异常
if (!IsExistDirectory(directoryPath))
{
throw new FileNotFoundException();
}
//获取文件列表
return Directory.GetFiles(directoryPath);
}
#endregion
#region 获取指定目录中所有子目录列表,若要搜索嵌套的子目录列表,请使用重载方法.
/// <summary>
/// 获取指定目录中所有子目录列表,若要搜索嵌套的子目录列表,请使用重载方法.
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static string[] GetDirectories(string directoryPath)
{
try
{
return Directory.GetDirectories(directoryPath);
}
catch (IOException ex)
{
throw ex;
}
}
#endregion
#region 获取指定目录及子目录中所有文件列表
/// <summary>
/// 获取指定目录及子目录中所有文件列表
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
/// <param name="isSearchChild">是否搜索子目录</param>
public static string[] GetFileNames(string directoryPath, string searchPattern, bool isSearchChild)
{
//如果目录不存在，则抛出异常
if (!IsExistDirectory(directoryPath))
{
throw new FileNotFoundException();
}
try
{
if (isSearchChild)
{
return Directory.GetFiles(directoryPath, searchPattern, SearchOption.AllDirectories);
}
else
{
return Directory.GetFiles(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);
}
}
catch (IOException ex)
{
throw ex;
}
}
#endregion
#region 检测指定目录是否为空
/// <summary>
/// 检测指定目录是否为空
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static bool IsEmptyDirectory(string directoryPath)
{
try
{
//判断是否存在文件
string[] fileNames = GetFileNames(directoryPath);
if (fileNames.Length > 0)
{
return false;
}
//判断是否存在文件夹
string[] directoryNames = GetDirectories(directoryPath);
if (directoryNames.Length > 0)
{
return false;
}
return true;
}
catch
{
//这里记录日志
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
return true;
}
}
#endregion
#region 检测指定目录中是否存在指定的文件
/// <summary>
/// 检测指定目录中是否存在指定的文件,若要搜索子目录请使用重载方法.
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
public static bool Contains(string directoryPath, string searchPattern)
{
try
{
//获取指定的文件列表
string[] fileNames = GetFileNames(directoryPath, searchPattern, false);
//判断指定文件是否存在
if (fileNames.Length == 0)
{
return false;
}
else
{
return true;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
}
}
/// <summary>
/// 检测指定目录中是否存在指定的文件
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
/// <param name="isSearchChild">是否搜索子目录</param>
public static bool Contains(string directoryPath, string searchPattern, bool isSearchChild)
{
try
{
//获取指定的文件列表
string[] fileNames = GetFileNames(directoryPath, searchPattern, true);
//判断指定文件是否存在
if (fileNames.Length == 0)
{
return false;
}
else
{
return true;
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
}
}
#endregion
#region 创建目录
/// <summary>
/// 创建目录
/// </summary>
/// <param name="dir">要创建的目录路径包括目录名</param>
public static void CreateDir(string dir)
{
if (dir.Length == 0) return;
if (!Directory.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir))
Directory.CreateDirectory(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir);
}
#endregion
#region 删除目录
/// <summary>
/// 删除目录
/// </summary>
/// <param name="dir">要删除的目录路径和名称</param>
public static void DeleteDir(string dir)
{
if (dir.Length == 0) return;
if (Directory.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir))
Directory.Delete(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir);
}
#endregion
#region 删除文件
/// <summary>
/// 删除文件
/// </summary>
/// <param name="file">要删除的文件路径和名称</param>
public static void DeleteFile(string file)
{
if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + file))
File.Delete(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + file);
}
#endregion
#region 创建文件
/// <summary>
/// 创建文件
/// </summary>
/// <param name="dir">带后缀的文件名</param>
/// <param name="pagestr">文件内容</param>
public static void CreateFile(string dir, string pagestr)
{
dir = dir.Replace("/", "\\");
if (dir.IndexOf("\\") > -1)
CreateDir(dir.Substring(0, dir.LastIndexOf("\\")));
System.IO.StreamWriter sw = new System.IO.StreamWriter(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir, false, System.Text.Encoding.GetEncoding("GB2312"));
sw.Write(pagestr);
sw.Close();
}
#endregion
#region 移动文件(剪贴--粘贴)
/// <summary>
/// 移动文件(剪贴--粘贴)
/// </summary>
/// <param name="dir1">要移动的文件的路径及全名(包括后缀)</param>
/// <param name="dir2">文件移动到新的位置,并指定新的文件名</param>
public static void MoveFile(string dir1, string dir2)
{
dir1 = dir1.Replace("/", "\\");
dir2 = dir2.Replace("/", "\\");
if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1))
File.Move(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1, System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir2);
}
#endregion
#region 复制文件
/// <summary>
/// 复制文件
/// </summary>
/// <param name="dir1">要复制的文件的路径已经全名(包括后缀)</param>
/// <param name="dir2">目标位置,并指定新的文件名</param>
public static void CopyFile(string dir1, string dir2)
{
dir1 = dir1.Replace("/", "\\");
dir2 = dir2.Replace("/", "\\");
if (File.Exists(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1))
{
File.Copy(System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir1, System.Web.HttpContext.Current.Request.PhysicalApplicationPath + "\\" + dir2, true);
}
}
#endregion
#region 根据时间得到目录名 / 格式:yyyyMMdd 或者 HHmmssff
/// <summary>
/// 根据时间得到目录名yyyyMMdd
/// </summary>
/// <returns></returns>
public static string GetDateDir()
{
return DateTime.Now.ToString("yyyyMMdd");
}
/// <summary>
/// 根据时间得到文件名HHmmssff
/// </summary>
/// <returns></returns>
public static string GetDateFile()
{
return DateTime.Now.ToString("HHmmssff");
}
#endregion
#region 复制文件夹
/// <summary>
/// 复制文件夹(递归)
/// </summary>
/// <param name="varFromDirectory">源文件夹路径</param>
/// <param name="varToDirectory">目标文件夹路径</param>
public static void CopyFolder(string varFromDirectory, string varToDirectory)
{
Directory.CreateDirectory(varToDirectory);
if (!Directory.Exists(varFromDirectory)) return;
string[] directories = Directory.GetDirectories(varFromDirectory);
if (directories.Length > 0)
{
foreach (string d in directories)
{
CopyFolder(d, varToDirectory + d.Substring(d.LastIndexOf("\\")));
}
}
string[] files = Directory.GetFiles(varFromDirectory);
if (files.Length > 0)
{
foreach (string s in files)
{
File.Copy(s, varToDirectory + s.Substring(s.LastIndexOf("\\")), true);
}
}
}
#endregion
#region 检查文件,如果文件不存在则创建
/// <summary>
/// 检查文件,如果文件不存在则创建
/// </summary>
/// <param name="FilePath">路径,包括文件名</param>
public static void ExistsFile(string FilePath)
{
//if(!File.Exists(FilePath))
//File.Create(FilePath);
//以上写法会报错,详细解释请看下文.........
if (!File.Exists(FilePath))
{
FileStream fs = File.Create(FilePath);
fs.Close();
}
}
#endregion
#region 删除指定文件夹对应其他文件夹里的文件
/// <summary>
/// 删除指定文件夹对应其他文件夹里的文件
/// </summary>
/// <param name="varFromDirectory">指定文件夹路径</param>
/// <param name="varToDirectory">对应其他文件夹路径</param>
public static void DeleteFolderFiles(string varFromDirectory, string varToDirectory)
{
Directory.CreateDirectory(varToDirectory);
if (!Directory.Exists(varFromDirectory)) return;
string[] directories = Directory.GetDirectories(varFromDirectory);
if (directories.Length > 0)
{
foreach (string d in directories)
{
DeleteFolderFiles(d, varToDirectory + d.Substring(d.LastIndexOf("\\")));
}
}
string[] files = Directory.GetFiles(varFromDirectory);
if (files.Length > 0)
{
foreach (string s in files)
{
File.Delete(varToDirectory + s.Substring(s.LastIndexOf("\\")));
}
}
}
#endregion
#region 从文件的绝对路径中获取文件名( 包含扩展名 )
/// <summary>
/// 从文件的绝对路径中获取文件名( 包含扩展名 )
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static string GetFileName(string filePath)
{
//获取文件的名称
FileInfo fi = new FileInfo(filePath);
return fi.Name;
}
#endregion
/// <summary>
/// 复制文件参考方法,页面中引用
/// </summary>
/// <param name="cDir">新路径</param>
/// <param name="TempId">模板引擎替换编号</param>
public static void CopyFiles(string cDir, string TempId)
{
//if (Directory.Exists(Request.PhysicalApplicationPath + "\\Controls"))
//{
// string TempStr = string.Empty;
// StreamWriter sw;
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Default.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Default.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Default.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Column.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Column.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\List.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Content.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Content.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\View.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\MoreDiss.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\MoreDiss.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\DissList.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\ShowDiss.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\ShowDiss.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Diss.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Review.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Review.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Review.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
// if (File.Exists(Request.PhysicalApplicationPath + "\\Controls\\Search.aspx"))
// {
// TempStr = File.ReadAllText(Request.PhysicalApplicationPath + "\\Controls\\Search.aspx");
// TempStr = TempStr.Replace("{$ChannelId$}", TempId);
// sw = new StreamWriter(Request.PhysicalApplicationPath + "\\" + cDir + "\\Search.aspx", false, System.Text.Encoding.GetEncoding("GB2312"));
// sw.Write(TempStr);
// sw.Close();
// }
//}
}
#region 创建一个目录
/// <summary>
/// 创建一个目录
/// </summary>
/// <param name="directoryPath">目录的绝对路径</param>
public static void CreateDirectory(string directoryPath)
{
//如果目录不存在则创建该目录
if (!IsExistDirectory(directoryPath))
{
Directory.CreateDirectory(directoryPath);
}
}
#endregion
#region 创建一个文件
/// <summary>
/// 创建一个文件。
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static void CreateFile(string filePath)
{
try
{
//如果文件不存在则创建该文件
if (!IsExistFile(filePath))
{
//创建一个FileInfo对象
FileInfo file = new FileInfo(filePath);
//创建文件
FileStream fs = file.Create();
//关闭文件流
fs.Close();
}
}
catch (Exception ex)
{
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
throw ex;
}
}
/// <summary>
/// 创建一个文件,并将字节流写入文件。
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
/// <param name="buffer">二进制流数据</param>
public static void CreateFile(string filePath, byte[] buffer)
{
try
{
//如果文件不存在则创建该文件
if (!IsExistFile(filePath))
{
//创建一个FileInfo对象
FileInfo file = new FileInfo(filePath);
//创建文件
FileStream fs = file.Create();
//写入二进制流
fs.Write(buffer, 0, buffer.Length);
//关闭文件流
fs.Close();
}
}
catch (Exception ex)
{
//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
throw ex;
}
}
#endregion
#region 获取文本文件的行数
/// <summary>
/// 获取文本文件的行数
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static int GetLineCount(string filePath)
{
//将文本文件的各行读到一个字符串数组中
string[] rows = File.ReadAllLines(filePath);
//返回行数
return rows.Length;
}
#endregion
#region 获取一个文件的长度
/// <summary>
/// 获取一个文件的长度,单位为Byte
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static int GetFileSize(string filePath)
{
//创建一个文件对象
FileInfo fi = new FileInfo(filePath);
//获取文件的大小
return (int)fi.Length;
}
#endregion
#region 获取指定目录中的子目录列表
/// <summary>
/// 获取指定目录及子目录中所有子目录列表
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
/// <param name="isSearchChild">是否搜索子目录</param>
public static string[] GetDirectories(string directoryPath, string searchPattern, bool isSearchChild)
{
try
{
if (isSearchChild)
{
return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.AllDirectories);
}
else
{
return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);
}
}
catch (IOException ex)
{
throw ex;
}
}
#endregion
#region 向文本文件写入内容
/// <summary>
/// 向文本文件中写入内容
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
/// <param name="text">写入的内容</param>
/// <param name="encoding">编码</param>
public static void WriteText(string filePath, string text, Encoding encoding)
{
//向文件写入内容
File.WriteAllText(filePath, text, encoding);
}
#endregion
#region 向文本文件的尾部追加内容
/// <summary>
/// 向文本文件的尾部追加内容
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
/// <param name="content">写入的内容</param>
public static void AppendText(string filePath, string content)
{
File.AppendAllText(filePath, content);
}
#endregion
#region 将现有文件的内容复制到新文件中
/// <summary>
/// 将源文件的内容复制到目标文件中
/// </summary>
/// <param name="sourceFilePath">源文件的绝对路径</param>
/// <param name="destFilePath">目标文件的绝对路径</param>
public static void Copy(string sourceFilePath, string destFilePath)
{
File.Copy(sourceFilePath, destFilePath, true);
}
#endregion
#region 将文件移动到指定目录
/// <summary>
/// 将文件移动到指定目录
/// </summary>
/// <param name="sourceFilePath">需要移动的源文件的绝对路径</param>
/// <param name="descDirectoryPath">移动到的目录的绝对路径</param>
public static void Move(string sourceFilePath, string descDirectoryPath)
{
//获取源文件的名称
string sourceFileName = GetFileName(sourceFilePath);
if (IsExistDirectory(descDirectoryPath))
{
//如果目标中存在同名文件,则删除
if (IsExistFile(descDirectoryPath + "\\" + sourceFileName))
{
DeleteFile(descDirectoryPath + "\\" + sourceFileName);
}
//将文件移动到指定目录
File.Move(sourceFilePath, descDirectoryPath + "\\" + sourceFileName);
}
}
#endregion
#region 从文件的绝对路径中获取文件名( 不包含扩展名 )
/// <summary>
/// 从文件的绝对路径中获取文件名( 不包含扩展名 )
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static string GetFileNameNoExtension(string filePath)
{
//获取文件的名称
FileInfo fi = new FileInfo(filePath);
return fi.Name.Split('.')[0];
}
#endregion
#region 从文件的绝对路径中获取扩展名
/// <summary>
/// 从文件的绝对路径中获取扩展名
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static string GetExtension(string filePath)
{
//获取文件的名称
FileInfo fi = new FileInfo(filePath);
return fi.Extension;
}
#endregion
#region 清空指定目录
/// <summary>
/// 清空指定目录下所有文件及子目录,但该目录依然保存.
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void ClearDirectory(string directoryPath)
{
if (IsExistDirectory(directoryPath))
{
//删除目录中所有的文件
string[] fileNames = GetFileNames(directoryPath);
for (int i = 0; i < fileNames.Length; i++)
{
DeleteFile(fileNames[i]);
}
//删除目录中所有的子目录
string[] directoryNames = GetDirectories(directoryPath);
for (int i = 0; i < directoryNames.Length; i++)
{
DeleteDirectory(directoryNames[i]);
}
}
}
#endregion
#region 清空文件内容
/// <summary>
/// 清空文件内容
/// </summary>
/// <param name="filePath">文件的绝对路径</param>
public static void ClearFile(string filePath)
{
//删除文件
File.Delete(filePath);
//重新创建该文件
CreateFile(filePath);
}
#endregion
#region 删除指定目录
/// <summary>
/// 删除指定目录及其所有子目录
/// </summary>
/// <param name="directoryPath">指定目录的绝对路径</param>
public static void DeleteDirectory(string directoryPath)
{
if (IsExistDirectory(directoryPath))
{
Directory.Delete(directoryPath, true);
}
}
#endregion
}
}
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