423 lines
12 KiB
C#
423 lines
12 KiB
C#
using System;
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using System.IO;
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using System.Text;
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namespace AllBase
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{
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public static class FileBase
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{
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/// <summary>
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/// 文件是否存在
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static bool Exists(string path)
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{
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try
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{
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return File.Exists(path);
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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/// <summary>
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/// 读取文件
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static string ReadAllText(string path)
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{
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return ReadAllText(path, Encoding.Default);
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}
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/// <summary>
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/// 读取文件
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/// </summary>
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/// <param name="path"></param>
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/// <param name="encoding"></param>
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/// <returns></returns>
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public static string ReadAllText(string path, Encoding encoding)
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{
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try
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{
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return File.ReadAllText(path, encoding);
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return null;
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}
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}
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/// <summary>
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/// 读取文件
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static string[] ReadAllLines(string path, Encoding encoding)
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{
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try
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{
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return File.ReadAllLines(path, encoding);
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return null;
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}
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}
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/// <summary>
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/// 读取文件
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static string[] ReadAllLines(string path)
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{
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return ReadAllLines(path, Encoding.Default);
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}
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/// <summary>
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/// 写入文件
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/// </summary>
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/// <param name="path"></param>
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/// <param name="content"></param>
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/// <param name="encoding"></param>
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/// <returns></returns>
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public static bool WriteAllText(string path, string content, Encoding encoding)
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{
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try
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{
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File.WriteAllText(path, content, encoding);
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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public static byte[] ReadBytes(string path)
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{
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try
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{
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return File.ReadAllBytes(path);
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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}
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return null;
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}
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public static bool WriteAllText(string path, string content)
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{
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return WriteAllText(path, content, Encoding.Default);
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}
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public static bool WriteBytes(string path, byte[] content)
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{
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try
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{
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File.WriteAllBytes(path, content);
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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/// <summary>
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/// 写入文件
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/// </summary>
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/// <param name="path"></param>
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/// <param name="content"></param>
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/// <param name="encoding"></param>
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/// <returns></returns>
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public static bool AppendAllText(string path, string content, Encoding encoding)
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{
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try
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{
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File.AppendAllText(path, content, encoding);
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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public static bool AppendAllText(string path, string content)
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{
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return AppendAllText(path, content, Encoding.Default);
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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="path"></param>
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/// <returns></returns>
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public static bool Delete(string path)
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{
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try
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{
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File.Delete(path);
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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/// <summary>
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/// 创建目录
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/// </summary>
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/// <param name="path"></param>
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/// <returns></returns>
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public static bool DirectoryCreate(string path)
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{
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try
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{
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if (!Directory.Exists(path))
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{
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Directory.CreateDirectory(path);
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}
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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public static bool Move(string oldFile, string newFile)
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{
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try
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{
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File.Move(oldFile, newFile);
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return true;
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}
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catch (Exception e)
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{
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LogSave.Add(e.Message);
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return false;
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}
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}
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/// <summary>
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/// 将文本内容写入指定文本
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/// </summary>
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/// <param name="path">文件路径</param>
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/// <param name="fileName">文本名称</param>
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/// <param name="content">文本内容</param>
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/// <param name="isSetEmpty">是否将原来内容置空</param>
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/// <param name="relativePath">是否是相对路径 ，默认相对路径</param>
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public static void WriteTxt(string path, string fileName, string content, bool isSetEmpty, bool relativePath = true)
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{
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if (relativePath)
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{
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path = Environment.CurrentDirectory + path;
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}
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try
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{
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//判断文件路径是否存在
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DirectoryInfo directory = new DirectoryInfo(path);
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bool isHas = directory.Exists;
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if (!isHas)//若文件路径不存在则创建
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{
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isHas = FileBase.DirectoryCreate(path);
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}
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if (isHas)
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{
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string file = fileName + ".txt";
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string filePath = path + "\\" + file;
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if (isSetEmpty)
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{
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FileStream fileStream = new FileStream(filePath, FileMode.Create);
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StreamWriter streamWriter = new StreamWriter(fileStream, Encoding.Default);
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streamWriter.Write(content);
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streamWriter.Flush();
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streamWriter.Close();
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fileStream.Close();
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}
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else
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{
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//FileStream fileStream = new FileStream(filePath, FileMode.Create);
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StreamWriter streamWriter = new StreamWriter(filePath, true);
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streamWriter.Write(content);
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streamWriter.Flush();
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streamWriter.Close();
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//fileStream.Close();
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}
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}
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}
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catch (Exception)
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{
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//throw;
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}
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}
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public static System.Text.Encoding GetFileEncoding(string filename)
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{
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using (var fs = new System.IO.FileStream(filename, System.IO.FileMode.Open, System.IO.FileAccess.Read))
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using (var br = new System.IO.BinaryReader(fs))
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{
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var buffer = br.ReadBytes(2);
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if (buffer[0] >= 0xEF)
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{
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if (buffer[0] == 0xEF && buffer[1] == 0xBB)
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{
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return System.Text.Encoding.UTF8;
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}
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if (buffer[0] == 0xFE && buffer[1] == 0xFF)
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{
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return System.Text.Encoding.BigEndianUnicode;
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}
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if (buffer[0] == 0xFF && buffer[1] == 0xFE)
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{
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return System.Text.Encoding.Unicode;
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}
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}
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return GetEncodingWithBomUtf8(fs, System.Text.Encoding.Default);
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}
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}
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private static System.Text.Encoding GetEncodingWithBomUtf8(Stream fs, Encoding defaultEncoding)
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{
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byte[] unicode = new byte[] { 0xFF, 0xFE, 0x41 };
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byte[] unicodeBig = new byte[] { 0xFE, 0xFF, 0x00 };
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//带BOM
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byte[] utf8 = new byte[] { 0xEF, 0xBB, 0xBF };
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var reVal = defaultEncoding;
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using (var r = new System.IO.BinaryReader(fs))
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{
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byte[] ss = r.ReadBytes(4);
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if (ss[0] == 0xFE && ss[1] == 0xFF && ss[2] == 0x00)
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{
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reVal = Encoding.BigEndianUnicode;
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}
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else if (ss[0] == 0xFF && ss[1] == 0xFE && ss[2] == 0x41)
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{
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reVal = Encoding.Unicode;
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}
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else
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{
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if (ss[0] == 0xEF && ss[1] == 0xBB && ss[2] == 0xBF)
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{
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reVal = Encoding.UTF8;
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}
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else
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{
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int i;
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int.TryParse(fs.Length.ToString(), out i);
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ss = r.ReadBytes(i);
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if (IsUtf8Bytes(ss))
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{
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reVal = Encoding.UTF8;
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}
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}
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}
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return reVal;
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}
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}
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private static bool IsUtf8Bytes(byte[] data)
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{
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int charByteCounter = 1; //计算当前正分析的字符应还有的字节数
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for (int i = 0; i < data.Length; i++)
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{
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var curByte = data[i]; //当前分析的字节.
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if (charByteCounter == 1)
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{
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if (curByte >= 0x80)
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{
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//判断当前
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while (((curByte <<= 1) & 0x80) != 0)
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{
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charByteCounter++;
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}
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//标记位首位若为非0 则至少以2个1开始 如:110XXXXX...........1111110X
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if (charByteCounter == 1 || charByteCounter > 6)
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{
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return false;
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}
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}
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}
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else
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{
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//若是UTF-8 此时第一位必须为1
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if ((curByte & 0xC0) != 0x80)
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{
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return false;
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}
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charByteCounter--;
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}
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}
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if (charByteCounter > 1)
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{
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throw new Exception("非预期的byte格式!");
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}
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return true;
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}
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#region 从文本读取内容
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public static string ReadTxt(string path, string fileName, bool relativePath = true)
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{
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string str = "";
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if (relativePath)
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{
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path = Environment.CurrentDirectory + path;
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}
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DirectoryInfo directory = new DirectoryInfo(path);
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if (directory.Exists)//存在,开始读
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{
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var dics = directory.GetFiles();
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for (int k = 0; k < dics.Length; k++)//循环每个店铺
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{
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string file = dics[k].ToString();
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if (!string.IsNullOrEmpty(fileName))
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{
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file = fileName;
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}
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string filePath = path + "\\" + file;
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bool isHas = FileBase.Exists(filePath);
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if (isHas)
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{
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str = ReadAllText(filePath);
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}
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}
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}
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return str;
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}
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#endregion
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}
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}
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