613 lines
21 KiB
C#
613 lines
21 KiB
C#
/**
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* Title: 文件操作的方法工具
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* Author: other
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* Date: long long ago
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* Desp:
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*/
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using System;
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using System.IO;
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using System.Text;
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namespace dataAnalize
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{
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public class FileHelper
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{
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#region 目录检测相关操作
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/// <summary>
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/// 检测指定目录是否存在
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/// </summary>
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/// <param name="directoryPath">目录的绝对路径</param>
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/// <returns></returns>
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public static bool IsExistDirectory(string directoryPath)
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{
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return Directory.Exists(directoryPath);
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}
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/// <summary>
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/// 检测指定目录是否为空
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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public static bool IsEmptyDirectory(string directoryPath)
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{
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try
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{
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string[] fileNames = GetDirectoryFileNames(directoryPath, "*", false); //判断是否存在文件
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if (fileNames.Length > 0)
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{
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return false;
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}
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string[] directoryNames = GetDirectories(directoryPath, "*", false); //判断是否存在文件夹
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if (directoryNames.Length > 0)
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{
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return false;
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}
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return true;
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}
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catch
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{
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return true;
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}
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}
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/// <summary>
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/// 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.
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
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/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
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public static bool DirectoryContains(string directoryPath, string searchPattern)
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{
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try
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{
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string[] fileNames = GetDirectoryFileNames(directoryPath, searchPattern, false); //获取指定的文件列表
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if (fileNames.Length == 0) //判断指定文件是否存在
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{
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return false;
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}
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else
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{
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return true;
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}
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}
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catch (Exception ex)
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{
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throw new Exception(ex.Message);
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}
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}
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/// <summary>
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/// 检测指定目录中是否存在指定的文件
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
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/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
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/// <param name="isSearchChild">是否搜索子目录</param>
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public static bool DirectoryContains(string directoryPath, string searchPattern, bool isSearchChild)
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{
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try
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{
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//获取指定的文件列表
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string[] fileNames = GetDirectoryFileNames(directoryPath, searchPattern, true);
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//判断指定文件是否存在
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if (fileNames.Length == 0)
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{
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return false;
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}
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else
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{
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return true;
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}
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}
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catch (Exception ex)
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{
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throw new Exception(ex.Message);
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//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
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}
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}
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/// <summary>
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/// 获取指定目录及子目录中所有子目录列表
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
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/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
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/// <param name="isSearchChild">是否搜索子目录</param>
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public static string[] GetDirectories(string directoryPath, string searchPattern, bool isSearchChild)
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{
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try
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{
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if (isSearchChild)
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{
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return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.AllDirectories);
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}
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else
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{
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return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);
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}
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}
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catch (IOException ex)
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{
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throw ex;
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}
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}
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/// <summary>
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/// 获取指定目录及子目录中所有文件列表
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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/// <param name="searchPattern">模式字符串，"*"代表0或N个字符，"?"代表1个字符。
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/// 范例："Log*.xml"表示搜索所有以Log开头的Xml文件。</param>
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/// <param name="isSearchChild">是否搜索子目录</param>
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public static string[] GetDirectoryFileNames(string directoryPath, string searchPattern, bool isSearchChild)
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{
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//如果目录不存在，则抛出异常
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if (!IsExistDirectory(directoryPath))
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{
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throw new FileNotFoundException();
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}
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try
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{
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if (isSearchChild)
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{
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return Directory.GetFiles(directoryPath, searchPattern, SearchOption.AllDirectories);
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}
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else
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{
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return Directory.GetFiles(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);
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}
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}
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catch (IOException ex)
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{
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throw ex;
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}
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}
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#endregion
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#region 目录相关操作的内容
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/// <summary>
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/// 创建目录
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/// </summary>
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/// <param name="dir">要创建的目录路径包括目录名</param>
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public static void CreateDirectory(string dir)
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{
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if (dir.Length == 0) return;
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if (!Directory.Exists(dir))
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Directory.CreateDirectory(dir);
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}
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/// <summary>
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/// 删除目录
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/// </summary>
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/// <param name="dir">要删除的目录路径和名称</param>
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public static void DeleteDirectory(string dir)
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{
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if (dir.Length == 0) return;
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if (Directory.Exists(dir))
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Directory.Delete(dir, true);
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}
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/// <summary>
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/// 清空指定目录下所有文件及子目录,但该目录依然保存.
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/// </summary>
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/// <param name="directoryPath">指定目录的绝对路径</param>
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public static void ClearDirectory(string directoryPath)
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{
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if (IsExistDirectory(directoryPath))
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{
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//删除目录中所有的文件
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string[] fileNames = GetDirectoryFileNames(directoryPath, "*", false);
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for (int i = 0; i < fileNames.Length; i++)
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{
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DeleteFile(fileNames[i]);
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}
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//删除目录中所有的子目录
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string[] directoryNames = GetDirectories(directoryPath, "*", false);
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for (int i = 0; i < directoryNames.Length; i++)
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{
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DeleteDirectory(directoryNames[i]);
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}
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}
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}
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/// <summary>
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/// 复制文件夹(递归)
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/// </summary>
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/// <param name="varFromDirectory">源文件夹路径</param>
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/// <param name="varToDirectory">目标文件夹路径</param>
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public static void CopyDirectory(string varFromDirectory, string varToDirectory)
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{
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Directory.CreateDirectory(varToDirectory);
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if (!Directory.Exists(varFromDirectory)) return;
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string[] directories = Directory.GetDirectories(varFromDirectory);
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if (directories.Length > 0)
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{
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foreach (string d in directories)
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{
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CopyDirectory(d, varToDirectory + d.Substring(d.LastIndexOf("\\")));
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}
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}
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string[] files = Directory.GetFiles(varFromDirectory);
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if (files.Length > 0)
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{
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foreach (string s in files)
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{
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File.Copy(s, varToDirectory + s.Substring(s.LastIndexOf("\\")), true);
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}
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}
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}
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#endregion
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#region 文件本身操作
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/// <summary>
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/// 检测指定文件是否存在,如果存在则返回true。
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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public static bool IsExistFile(string filePath)
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{
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return File.Exists(filePath);
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}
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/// <summary>
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/// 创建一个文件。
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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public static void CreateFile(string filePath)
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{
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try
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{
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//如果文件不存在则创建该文件
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if (!IsExistFile(filePath))
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{
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//创建一个FileInfo对象
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FileInfo file = new FileInfo(filePath);
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//创建文件
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FileStream fs = file.Create();
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//关闭文件流
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fs.Close();
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}
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}
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catch (Exception ex)
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{
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//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
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throw ex;
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}
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}
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/// <summary>
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/// 创建文件
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/// </summary>
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/// <param name="path">路径</param>
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/// <param name="content">内容</param>
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public static void CreateFile(string path, string content)
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{
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FileInfo fi = new FileInfo(path);
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var di = fi.Directory;
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if (!di.Exists)
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{
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di.Create();
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}
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StreamWriter sw = new StreamWriter(path, false, Encoding.GetEncoding("GB2312"));
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sw.Write(content);
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sw.Close();
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//path = path.Replace("/", "\\");
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//if (path.IndexOf("\\") > -1)
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// CreateDirectory(dir.Substring(0, path.LastIndexOf("\\")));
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//StreamWriter sw = new StreamWriter(path, false, Encoding.GetEncoding("GB2312"));
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//sw.Write(pagestr);
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//sw.Close();
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}
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/// <summary>
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/// 创建一个文件,并将字节流写入文件。
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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/// <param name="buffer">二进制流数据</param>
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public static void CreateFile(string filePath, byte[] buffer)
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{
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try
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{
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//如果文件不存在则创建该文件
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if (!IsExistFile(filePath))
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{
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//创建一个FileInfo对象
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FileInfo file = new FileInfo(filePath);
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//创建文件
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FileStream fs = file.Create();
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//写入二进制流
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fs.Write(buffer, 0, buffer.Length);
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//关闭文件流
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fs.Close();
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}
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}
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catch (Exception ex)
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{
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//LogHelper.WriteTraceLog(TraceLogLevel.Error, ex.Message);
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throw ex;
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}
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}
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/// <summary>
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/// 删除文件
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/// </summary>
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/// <param name="file">要删除的文件路径和名称</param>
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public static void DeleteFile(string file)
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{
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if (File.Exists(file))
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{
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File.Delete(file);
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}
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}
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/// <summary>
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/// 将文件移动到指定目录
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/// </summary>
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/// <param name="sourceFilePath">需要移动的源文件的绝对路径</param>
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/// <param name="descDirectoryPath">移动到的目录的绝对路径</param>
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public static void MoveFile(string sourceFilePath, string descDirectoryPath)
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{
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//获取源文件的名称
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string sourceFileName = GetFileName(sourceFilePath);
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if (IsExistDirectory(descDirectoryPath))
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{
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//如果目标中存在同名文件,则删除
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if (IsExistFile(descDirectoryPath + "\\" + sourceFileName))
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{
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DeleteFile(descDirectoryPath + "\\" + sourceFileName);
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}
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//将文件移动到指定目录
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File.Move(sourceFilePath, descDirectoryPath + "\\" + sourceFileName);
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}
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}
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/// <summary>
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/// 复制文件
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/// </summary>
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/// <param name="dir1">要复制的文件的路径已经全名(包括后缀)</param>
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/// <param name="dir2">目标位置,并指定新的文件名</param>
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public static void CopyFile(string dir1, string dir2)
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{
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if (File.Exists(dir1))
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{
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File.Copy(dir1, dir2, true);
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}
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}
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#endregion
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#region 文件内容检测
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/// <summary>
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/// 获取文本文件的行数
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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public static int GetLineCount(string filePath)
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{
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//将文本文件的各行读到一个字符串数组中
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string[] rows = File.ReadAllLines(filePath);
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//返回行数
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return rows.Length;
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}
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/// <summary>
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/// 获取一个文件的长度,单位为Byte
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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public static long GetFileSize(string filePath)
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{
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//创建一个文件对象
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FileInfo fi = new FileInfo(filePath);
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//获取文件的大小
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return fi.Length;
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}
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/// <summary>
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/// 计算文件大小函数(保留两位小数),Size为字节大小
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/// </summary>
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/// <param name="size">初始文件大小</param>
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/// <returns></returns>
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public static string ToFileSize(long size)
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{
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string m_strSize = "";
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long FactSize = 0;
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FactSize = size;
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if (FactSize < 1024.00)
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m_strSize = FactSize.ToString("F2") + " 字节";
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else if (FactSize >= 1024.00 && FactSize < 1048576)
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m_strSize = (FactSize / 1024.00).ToString("F2") + " KB";
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else if (FactSize >= 1048576 && FactSize < 1073741824)
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m_strSize = (FactSize / 1024.00 / 1024.00).ToString("F2") + " MB";
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else if (FactSize >= 1073741824)
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m_strSize = (FactSize / 1024.00 / 1024.00 / 1024.00).ToString("F2") + " GB";
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return m_strSize;
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}
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#endregion
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#region 文件内容操作
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/// <summary>
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/// 向文本文件中写入内容
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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/// <param name="text">写入的内容</param>
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/// <param name="encoding">编码</param>
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public static void WriteText(string filePath, string text, Encoding encoding)
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{
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//向文件写入内容
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File.WriteAllText(filePath, text, encoding);
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}
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/// <summary>
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/// 向文本文件的尾部追加内容
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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/// <param name="content">写入的内容</param>
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public static void AppendText(string filePath, string content)
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{
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File.AppendAllText(filePath, content);
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}
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/// <summary>
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/// 获取文件的所有内容
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/// </summary>
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/// <returns></returns>
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public static string ReadAllFileContent(string filePath)
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{
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StreamReader sr = new StreamReader(filePath);
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string strRead = sr.ReadToEnd(); //从开始到末尾读取文件的所有内容
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sr.Close(); //读完文件记得关闭流
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return strRead;
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}
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/// <summary>
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/// 将文件转换成byte[] 数组
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/// </summary>
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/// <param name="filePath">文件路径文件名称</param>
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/// <returns>byte[]</returns>
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public static byte[] ReadFileByteData(string filePath)
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{
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using (FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
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{
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byte[] buffur = new byte[fs.Length];
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using (BinaryReader br = new BinaryReader(fs))
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{
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br.Read(buffur, 0, (int)fs.Length);
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br.Close();
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}
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return buffur;
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}
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}
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/// <summary>
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/// 将文件转换成byte[] 数组
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/// </summary>
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/// <param name="filePath">文件路径文件名称</param>
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/// <returns>byte[]</returns>
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public static byte[] ReadFileByteData2(string filePath)
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{
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FileStream fs = new FileStream(filePath, FileMode.Open, FileAccess.Read);
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try
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{
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byte[] buffur = new byte[fs.Length];
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fs.Read(buffur, 0, (int)fs.Length);
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return buffur;
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}
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catch (Exception ex)
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{
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return null;
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}
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finally
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{
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fs.Close();
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}
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}
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/// <summary>
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/// 清空文件内容,文件流不会关闭
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/// </summary>
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/// <param name="filePath">文件的绝对路径</param>
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public static void ClearFile(string filePath)
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{
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FileStream fs = new FileStream(filePath, FileMode.Truncate, FileAccess.ReadWrite);
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fs.Close();
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}
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|
||
/// <summary>
|
||
/// 清空文件内容,文件流不会关闭
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
public static FileStream ClearFileAndGet(string filePath)
|
||
{
|
||
FileStream fs = new FileStream(filePath, FileMode.Truncate, FileAccess.ReadWrite);
|
||
return fs;
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 文件路径处理
|
||
|
||
/// <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)
|
||
{
|
||
filePath = filePath.Trim();
|
||
//获取文件的名称
|
||
FileInfo fi = new FileInfo(filePath);
|
||
string suffix = fi.Extension;
|
||
return suffix.ToLower();
|
||
//string suffix = filePath.Substring(filePath.LastIndexOf(".") + 1);
|
||
//return suffix.ToLower();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 从文件的绝对路径中获取最末层文件夹路径
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
public static string GetDirectoryPath(string filePath)
|
||
{
|
||
FileInfo fi = new FileInfo(filePath);
|
||
return fi.DirectoryName;
|
||
}
|
||
|
||
/// <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)
|
||
{
|
||
filePath = filePath.Trim();
|
||
//获取文件的名称
|
||
FileInfo fi = new FileInfo(filePath);
|
||
return fi.Name;
|
||
//string fileName = filePath.Substring(filePath.LastIndexOf('/') + 1);
|
||
//return fileName;
|
||
}
|
||
|
||
/// <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];
|
||
}
|
||
|
||
/// <summary>
|
||
/// 根据相对路径转化为绝对路径
|
||
/// </summary>
|
||
/// <param name="relativePath">相对路径, 直接加文件夹名称即可</param>
|
||
/// <returns></returns>
|
||
public static string GetFullPath(string relativePath)
|
||
{
|
||
string basePath = AppDomain.CurrentDomain.BaseDirectory;
|
||
|
||
return basePath + relativePath;
|
||
}
|
||
|
||
#endregion
|
||
}
|
||
}
|