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using System;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace EntrustSettle.Common.Helper
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{
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public class FileHelper : IDisposable
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{
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private bool _alreadyDispose = false;
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#region 构造函数
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public FileHelper()
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{
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//
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// TODO: 在此处添加构造函数逻辑
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//
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}
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~FileHelper()
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{
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Dispose(); ;
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}
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protected virtual void Dispose(bool isDisposing)
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{
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if (_alreadyDispose) return;
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_alreadyDispose = true;
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}
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#endregion
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#region IDisposable 成员
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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#endregion
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#region 取得文件后缀名
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/****************************************
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* 函数名称:GetPostfixStr
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* 功能说明:取得文件后缀名
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* 参 数:filename:文件名称
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* 调用示列:
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* string filename = "aaa.aspx";
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* string s = EC.FileObj.GetPostfixStr(filename);
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*****************************************/
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/// <summary>
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/// 取后缀名
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/// </summary>
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/// <param name="filename">文件名</param>
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/// <returns>.gif|.html格式</returns>
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public static string GetPostfixStr(string filename)
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{
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int start = filename.LastIndexOf(".");
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int length = filename.Length;
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string postfix = filename.Substring(start, length - start);
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return postfix;
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}
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#endregion
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#region 根据文件大小获取指定前缀的可用文件名
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/// <summary>
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/// 根据文件大小获取指定前缀的可用文件名
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/// </summary>
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/// <param name="folderPath">文件夹</param>
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/// <param name="prefix">文件前缀</param>
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/// <param name="size">文件大小(单位:m)</param>
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/// <param name="ext">文件后缀(.log)</param>
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/// <returns>可用文件名</returns>
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public static string GetAvailableFileWithPrefixOrderSize(string folderPath, string prefix, int size = 1 , string ext = ".log")
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{
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var allFiles = new DirectoryInfo(folderPath);
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var selectFiles = allFiles.GetFiles().Where(fi => fi.Name.ToLower().Contains(prefix.ToLower()) && fi.Extension.ToLower() == ext.ToLower() && fi.Length < size * 1024 * 1024).OrderByDescending(d => d.Name).ToList();
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if (selectFiles.Count > 0)
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{
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return selectFiles.FirstOrDefault().FullName;
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}
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return Path.Combine(folderPath, $@"{prefix}_{DateTime.Now.DateToTimeStamp()}.log");
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}
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#endregion
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#region 写文件
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/****************************************
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* 函数名称:WriteFile
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* 功能说明:写文件,会覆盖掉以前的内容
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* 参 数:Path:文件路径,Strings:文本内容
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* 调用示列:
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* string Path = Server.MapPath("Default2.aspx");
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* string Strings = "这是我写的内容啊";
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* EC.FileObj.WriteFile(Path,Strings);
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*****************************************/
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/// <summary>
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/// 写文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <param name="Strings">文件内容</param>
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public static void WriteFile(string Path, string Strings)
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{
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if (!File.Exists(Path))
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{
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FileStream f = File.Create(Path);
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f.Close();
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}
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StreamWriter f2 = new StreamWriter(Path, false, System.Text.Encoding.GetEncoding("gb2312"));
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f2.Write(Strings);
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f2.Close();
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f2.Dispose();
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}
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/// <summary>
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/// 写文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <param name="Strings">文件内容</param>
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public static void WriteFile(string Path, byte[] buf)
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{
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if (!File.Exists(Path))
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{
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FileStream f = File.Create(Path);
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f.Close();
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}
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FileStream f2 = new FileStream(Path, FileMode.Create, FileAccess.Write);
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f2.Write(buf, 0, buf.Length);
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f2.Close();
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f2.Dispose();
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}
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/// <summary>
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/// 写文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <param name="Strings">文件内容</param>
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/// <param name="encode">编码格式</param>
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public static void WriteFile(string Path, string Strings, Encoding encode)
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{
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if (!File.Exists(Path))
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{
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FileStream f = File.Create(Path);
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f.Close();
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}
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StreamWriter f2 = new StreamWriter(Path, false, encode);
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f2.Write(Strings);
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f2.Close();
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f2.Dispose();
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}
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#endregion
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#region 读文件
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/****************************************
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* 函数名称:ReadFile
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* 功能说明:读取文本内容
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* 参 数:Path:文件路径
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* 调用示列:
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* string Path = Server.MapPath("Default2.aspx");
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* string s = EC.FileObj.ReadFile(Path);
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*****************************************/
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/// <summary>
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/// 读文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <returns></returns>
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public static string ReadFile(string Path)
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{
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string s = "";
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if (!File.Exists(Path))
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s = "不存在相应的目录";
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else
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{
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StreamReader f2 = new StreamReader(Path, System.Text.Encoding.GetEncoding("gb2312"));
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s = f2.ReadToEnd();
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f2.Close();
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f2.Dispose();
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}
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return s;
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}
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/// <summary>
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/// 读文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <param name="encode">编码格式</param>
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/// <returns></returns>
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public static string ReadFile(string Path, Encoding encode)
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{
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string s = "";
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if (!File.Exists(Path))
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s = "不存在相应的目录";
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else
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{
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StreamReader f2 = new StreamReader(Path, encode);
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s = f2.ReadToEnd();
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f2.Close();
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f2.Dispose();
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}
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return s;
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}
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#endregion
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#region 追加文件
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/****************************************
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* 函数名称:FileAdd
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* 功能说明:追加文件内容
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* 参 数:Path:文件路径,strings:内容
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* 调用示列:
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* string Path = Server.MapPath("Default2.aspx");
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* string Strings = "新追加内容";
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* EC.FileObj.FileAdd(Path, Strings);
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*****************************************/
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/// <summary>
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/// 追加文件
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/// </summary>
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/// <param name="Path">文件路径</param>
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/// <param name="strings">内容</param>
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public static void FileAdd(string Path, string strings)
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{
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StreamWriter sw = File.AppendText(Path);
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sw.Write(strings);
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sw.Flush();
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sw.Close();
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}
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#endregion
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#region 拷贝文件
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/****************************************
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* 函数名称:FileCoppy
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* 功能说明:拷贝文件
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* 参 数:OrignFile:原始文件,NewFile:新文件路径
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* 调用示列:
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* string orignFile = Server.MapPath("Default2.aspx");
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* string NewFile = Server.MapPath("Default3.aspx");
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* EC.FileObj.FileCoppy(OrignFile, NewFile);
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*****************************************/
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/// <summary>
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/// 拷贝文件
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/// </summary>
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/// <param name="OrignFile">原始文件</param>
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/// <param name="NewFile">新文件路径</param>
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public static void FileCoppy(string orignFile, string NewFile)
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{
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File.Copy(orignFile, NewFile, true);
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}
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#endregion
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#region 删除文件
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/****************************************
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* 函数名称:FileDel
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* 功能说明:删除文件
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* 参 数:Path:文件路径
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* 调用示列:
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* string Path = Server.MapPath("Default3.aspx");
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* EC.FileObj.FileDel(Path);
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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">路径</param>
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public static void FileDel(string Path)
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{
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File.Delete(Path);
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}
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#endregion
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#region 移动文件
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/****************************************
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* 函数名称:FileMove
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* 功能说明:移动文件
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* 参 数:OrignFile:原始路径,NewFile:新文件路径
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* 调用示列:
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* string orignFile = Server.MapPath("../说明.txt");
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* string NewFile = Server.MapPath("http://www.cnblogs.com/说明.txt");
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* EC.FileObj.FileMove(OrignFile, NewFile);
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*****************************************/
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/// <summary>
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/// 移动文件
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/// </summary>
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/// <param name="OrignFile">原始路径</param>
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/// <param name="NewFile">新路径</param>
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public static void FileMove(string orignFile, string NewFile)
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{
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File.Move(orignFile, NewFile);
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}
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#endregion
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#region 在当前目录下创建目录
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/****************************************
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* 函数名称:FolderCreate
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* 功能说明:在当前目录下创建目录
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* 参 数:OrignFolder:当前目录,NewFloder:新目录
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* 调用示列:
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* string orignFolder = Server.MapPath("test/");
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* string NewFloder = "new";
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* EC.FileObj.FolderCreate(OrignFolder, NewFloder);
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*****************************************/
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/// <summary>
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/// 在当前目录下创建目录
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/// </summary>
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/// <param name="OrignFolder">当前目录</param>
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/// <param name="NewFloder">新目录</param>
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public static void FolderCreate(string orignFolder, string NewFloder)
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{
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Directory.SetCurrentDirectory(orignFolder);
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Directory.CreateDirectory(NewFloder);
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}
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#endregion
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#region 递归删除文件夹目录及文件
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/****************************************
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* 函数名称:DeleteFolder
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* 功能说明:递归删除文件夹目录及文件
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* 参 数:dir:文件夹路径
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* 调用示列:
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* string dir = Server.MapPath("test/");
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* EC.FileObj.DeleteFolder(dir);
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*****************************************/
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/// <summary>
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/// 递归删除文件夹目录及文件
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/// </summary>
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/// <param name="dir"></param>
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/// <returns></returns>
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public static void DeleteFolder(string dir)
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{
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if (Directory.Exists(dir)) //如果存在这个文件夹删除之
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{
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foreach (string d in Directory.GetFileSystemEntries(dir))
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{
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if (File.Exists(d))
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File.Delete(d); //直接删除其中的文件
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else
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DeleteFolder(d); //递归删除子文件夹
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}
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Directory.Delete(dir); //删除已空文件夹
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}
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}
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#endregion
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#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。
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/****************************************
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* 函数名称:CopyDir
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* 功能说明: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。
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* 参 数:srcPath:原始路径,aimPath:目标文件夹
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* 调用示列:
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* string srcPath = Server.MapPath("test/");
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* string aimPath = Server.MapPath("test1/");
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* EC.FileObj.CopyDir(srcPath,aimPath);
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*****************************************/
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/// <summary>
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/// 指定文件夹下面的所有内容copy到目标文件夹下面
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/// </summary>
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/// <param name="srcPath">原始路径</param>
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/// <param name="aimPath">目标文件夹</param>
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public static void CopyDir(string srcPath, string aimPath)
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{
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try
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{
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// 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
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if (aimPath[aimPath.Length - 1] != Path.DirectorySeparatorChar)
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aimPath += Path.DirectorySeparatorChar;
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// 判断目标目录是否存在如果不存在则新建之
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if (!Directory.Exists(aimPath))
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Directory.CreateDirectory(aimPath);
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// 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
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//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
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//string[] fileList = Directory.GetFiles(srcPath);
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string[] fileList = Directory.GetFileSystemEntries(srcPath);
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//遍历所有的文件和目录
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foreach (string file in fileList)
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{
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//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
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if (Directory.Exists(file))
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CopyDir(file, aimPath + Path.GetFileName(file));
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//否则直接Copy文件
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else
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File.Copy(file, aimPath + Path.GetFileName(file), true);
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}
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}
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catch (Exception ee)
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{
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throw new Exception(ee.ToString());
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}
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}
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#endregion
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}
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}
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