697 lines
18 KiB
C#
697 lines
18 KiB
C#
using System;
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using System.Data;
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using System.IO;
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using System.Text;
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namespace HT.Cloud.Code
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{
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public class FileHelper
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{
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public static string MapPath(string path)
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{
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try
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{
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string rootdir = Directory.GetCurrentDirectory();
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//DirectoryInfo Dir = Directory.GetParent(rootdir);
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//string root = Dir.Parent.Parent.Parent.FullName;
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return rootdir + path;
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}
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catch (Exception)
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{
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return path;
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}
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}
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#region 获取文件到集合中
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/// <summary>
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/// 读取指定位置文件列表到集合中
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/// </summary>
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/// <param name="path">指定路径</param>
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/// <returns></returns>
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public static DataTable GetFileTable(string path)
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{
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DataTable dt = new DataTable();
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dt.Columns.Add("name", typeof(string));
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dt.Columns.Add("ext", typeof(string));
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dt.Columns.Add("size", typeof(long));
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dt.Columns.Add("time", typeof(DateTime));
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if (Directory.Exists(path))
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{
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DirectoryInfo dirinfo = new DirectoryInfo(path);
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FileInfo fi;
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DirectoryInfo dir;
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string FileName, FileExt;
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long FileSize = 0;
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DateTime FileModify;
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try
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{
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foreach (FileSystemInfo fsi in dirinfo.GetFileSystemInfos())
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{
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FileName = string.Empty;
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FileExt = string.Empty;
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if (fsi is FileInfo)
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{
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fi = (FileInfo)fsi;
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//获取文件名称
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FileName = fi.Name;
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//获取文件扩展名
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FileExt = fi.Extension;
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//获取文件大小
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FileSize = fi.Length;
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//获取文件最后修改时间
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FileModify = fi.LastWriteTime;
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}
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else
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{
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dir = (DirectoryInfo)fsi;
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//获取目录名
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FileName = dir.Name;
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//获取目录最后修改时间
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FileModify = dir.LastWriteTime;
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//设置目录文件为文件夹
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FileExt = "文件夹";
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}
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DataRow dr = dt.NewRow();
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dr["name"] = FileName;
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dr["ext"] = FileExt;
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dr["size"] = FileSize;
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dr["time"] = FileModify;
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dt.Rows.Add(dr);
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}
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}
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catch
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{
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throw;
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}
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}
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return dt;
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}
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#endregion 获取文件到集合中
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#region 检测指定路径是否存在
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/// <summary>
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/// 检测指定路径是否存在
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/// </summary>
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/// <param name="path">目录的绝对路径</param>
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public static bool IsExistDirectory(string path)
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{
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return Directory.Exists(path);
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}
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#endregion 检测指定路径是否存在
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#region 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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/// 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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#endregion 检测指定文件是否存在,如果存在则返回true
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#region 创建文件夹
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/// <summary>
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/// 创建文件夹
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/// </summary>
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/// <param name="folderPath">文件夹的绝对路径</param>
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public static void CreateFolder(string folderPath)
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{
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if (!IsExistDirectory(folderPath))
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{
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Directory.CreateDirectory(folderPath);
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}
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}
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#endregion 创建文件夹
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#region 判断上传文件后缀名
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/// <summary>
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/// 判断上传文件后缀名
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/// </summary>
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/// <param name="strExtension">后缀名</param>
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public static bool IsCanEdit(string strExtension)
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{
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strExtension = strExtension.ToLower();
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if (strExtension.LastIndexOf(".", StringComparison.Ordinal) >= 0)
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{
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strExtension = strExtension.Substring(strExtension.LastIndexOf(".", StringComparison.Ordinal));
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}
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else
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{
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strExtension = ".txt";
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}
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string[] strArray = new string[] { ".htm", ".html", ".txt", ".js", ".css", ".xml", ".sitemap" };
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for (int i = 0; i < strArray.Length; i++)
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{
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if (strExtension.Equals(strArray[i]))
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{
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return true;
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}
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}
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return false;
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}
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public static bool IsSafeName(string strExtension)
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{
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strExtension = strExtension.ToLower();
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if (strExtension.LastIndexOf(".") >= 0)
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{
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strExtension = strExtension.Substring(strExtension.LastIndexOf("."));
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}
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else
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{
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strExtension = ".txt";
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}
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string[] strArray = new string[] { ".jpg", ".gif", ".png" };
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for (int i = 0; i < strArray.Length; i++)
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{
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if (strExtension.Equals(strArray[i]))
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{
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return true;
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}
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}
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return false;
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}
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public static bool IsZipName(string strExtension)
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{
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strExtension = strExtension.ToLower();
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if (strExtension.LastIndexOf(".") >= 0)
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{
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strExtension = strExtension.Substring(strExtension.LastIndexOf("."));
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}
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else
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{
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strExtension = ".txt";
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}
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string[] strArray = new string[] { ".zip", ".rar" };
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for (int i = 0; i < strArray.Length; i++)
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{
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if (strExtension.Equals(strArray[i]))
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{
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return true;
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}
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}
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return false;
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}
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#endregion 判断上传文件后缀名
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#region 创建文件夹
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/// <summary>
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/// 创建文件夹
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/// </summary>
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/// <param name="fileName">文件的绝对路径</param>
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public static void CreateSuffic(string fileName)
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{
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try
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{
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if (!Directory.Exists(fileName))
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{
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Directory.CreateDirectory(fileName);
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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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/// <summary>
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/// 创建文件夹
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/// </summary>
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/// <param name="fileName">文件的绝对路径</param>
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public static void CreateFiles(string fileName)
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{
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try
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{
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//判断文件是否存在，不存在创建该文件
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if (!IsExistFile(fileName))
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{
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FileInfo file = new FileInfo(fileName);
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FileStream fs = file.Create();
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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.WriteWithTime(ex);
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}
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}
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#region 创建文本文件
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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"></param>
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/// <param name="content"></param>
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public static void CreateFile(string path, string content)
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{
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if (!Directory.Exists(Path.GetDirectoryName(path)))
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{
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Directory.CreateDirectory(Path.GetDirectoryName(path));
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}
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using (StreamWriter sw = new StreamWriter(path, false, Encoding.UTF8))
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{
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sw.Write(content);
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}
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}
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#endregion 创建文本文件
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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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//判断文件是否存在，不存在创建该文件
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if (!IsExistFile(filePath))
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{
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FileInfo file = new FileInfo(filePath);
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FileStream fs = file.Create();
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fs.Write(buffer, 0, buffer.Length);
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fs.Close();
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}
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else
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{
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File.WriteAllBytes(filePath, buffer);
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}
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}
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catch (Exception ex)
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{
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LogHelper.WriteWithTime(ex);
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}
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}
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#endregion 创建文件夹
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#region 将文件移动到指定目录
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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 Move(string sourceFilePath, string descDirectoryPath)
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{
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string sourceName = 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 + "\\" + sourceFilePath))
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{
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DeleteFile(descDirectoryPath + "\\" + sourceFilePath);
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}
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else
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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 + "\\" + sourceFilePath);
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}
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}
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}
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#endregion 将文件移动到指定目录
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#region 将源文件的内容复制到目标文件中
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/// <summary>
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/// 将源文件的内容复制到目标文件中
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/// </summary>
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/// <param name="sourceFilePath">源文件的绝对路径</param>
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/// <param name="descDirectoryPath">目标文件的绝对路径</param>
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public static void Copy(string sourceFilePath, string descDirectoryPath)
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{
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File.Copy(sourceFilePath, descDirectoryPath, true);
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}
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#endregion 将源文件的内容复制到目标文件中
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#region 从文件的绝对路径中获取文件名( 不包含扩展名 )
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/// <summary>
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/// 从文件的绝对路径中获取文件名( 不包含扩展名 )
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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 string GetFileName(string filePath)
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{
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FileInfo file = new FileInfo(filePath);
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return file.Name;
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}
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#endregion 从文件的绝对路径中获取文件名( 不包含扩展名 )
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#region 获取文件的后缀名
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/// <summary>
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/// 获取文件的后缀名
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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 string GetExtension(string filePath)
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{
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FileInfo file = new FileInfo(filePath);
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return file.Extension;
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}
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/// <summary>
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/// 返回文件扩展名，不含“.”
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/// </summary>
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/// <param name="filepath">文件全名称</param>
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/// <returns>string</returns>
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public static string GetFileExt(string filepath)
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{
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if (string.IsNullOrEmpty(filepath))
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{
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return "";
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}
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if (filepath.LastIndexOf(".", StringComparison.Ordinal) > 0)
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{
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return filepath.Substring(filepath.LastIndexOf(".", StringComparison.Ordinal) + 1); //文件扩展名，不含“.”
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}
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return "";
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}
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#endregion 获取文件的后缀名
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#region 删除指定文件
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/// <summary>
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/// 删除指定文件
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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 DeleteFile(string filePath)
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{
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if (IsExistFile(filePath))
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{
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File.Delete(filePath);
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}
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}
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#endregion 删除指定文件
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#region 删除指定目录及其所有子目录
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/// <summary>
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/// 删除指定目录及其所有子目录
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/// </summary>
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/// <param name="directoryPath">文件的绝对路径</param>
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public static void DeleteDirectory(string directoryPath)
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{
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if (IsExistDirectory(directoryPath))
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{
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Directory.Delete(directoryPath);
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}
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}
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#endregion 删除指定目录及其所有子目录
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#region 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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/// 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)) return;
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//删除目录中所有的文件
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string[] fileNames = GetFileNames(directoryPath);
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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);
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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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#endregion 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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#region 剪切 粘贴
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/// <summary>
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/// 剪切文件
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/// </summary>
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/// <param name="source">原路径</param>
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/// <param name="destination">新路径</param>
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public bool FileMove(string source, string destination)
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{
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bool ret = false;
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FileInfo file_s = new FileInfo(source);
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FileInfo file_d = new FileInfo(destination);
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if (file_s.Exists)
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{
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if (!file_d.Exists)
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{
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file_s.MoveTo(destination);
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ret = true;
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}
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}
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if (ret == true)
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{
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//Response.Write("<script>alert('剪切文件成功！');</script>");
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}
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else
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{
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//Response.Write("<script>alert('剪切文件失败！');</script>");
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}
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return ret;
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}
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#endregion 剪切 粘贴
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#region 检测指定目录是否为空
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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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//判断文件是否存在
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string[] fileNames = GetFileNames(directoryPath);
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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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//判断是否存在文件夹
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string[] directoryNames = GetDirectories(directoryPath);
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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 (Exception)
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{
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return true;
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}
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}
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#endregion 检测指定目录是否为空
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#region 获取指定目录中所有文件列表
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/// <summary>
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/// 获取指定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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public static string[] GetFileNames(string directoryPath)
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{
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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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return Directory.GetFiles(directoryPath);
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}
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#endregion 获取指定目录中所有文件列表
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#region 获取指定目录中的子目录列表
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/// <summary>
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/// 获取指定目录中所有子目录列表,若要搜索嵌套的子目录列表,请使用重载方法
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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 string[] GetDirectories(string directoryPath)
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{
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return Directory.GetDirectories(directoryPath);
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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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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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{
|
||
return Directory.GetDirectories(directoryPath, searchPattern, SearchOption.TopDirectoryOnly);
|
||
}
|
||
}
|
||
|
||
#endregion 获取指定目录中的子目录列表
|
||
|
||
#region 获取一个文件的长度
|
||
|
||
/// <summary>
|
||
/// 获取一个文件的长度,单位为Byte
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
public static int GetFileSize(string filePath)
|
||
{
|
||
//创建一个文件对象
|
||
FileInfo fi = new FileInfo(filePath);
|
||
//获取文件的大小
|
||
return (int)fi.Length;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取一个文件的长度,单位为KB
|
||
/// </summary>
|
||
/// <param name="filePath">文件的路径</param>
|
||
public static double GetFileSizeByKb(string filePath)
|
||
{
|
||
//创建一个文件对象
|
||
FileInfo fi = new FileInfo(filePath);
|
||
//获取文件的大小
|
||
return Math.Round(Convert.ToDouble(filePath.Length) / 1024, 2);// ConvertHelper.ToDouble(ConvertHelper.ToDouble(fi.Length) / 1024, 1);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 获取一个文件的长度,单位为MB
|
||
/// </summary>
|
||
/// <param name="filePath">文件的路径</param>
|
||
public static double GetFileSizeByMb(string filePath)
|
||
{
|
||
//创建一个文件对象
|
||
FileInfo fi = new FileInfo(filePath);
|
||
//获取文件的大小
|
||
return Math.Round(Convert.ToDouble(Convert.ToDouble(fi.Length) / 1024 / 1024), 2);
|
||
}
|
||
|
||
#endregion 获取一个文件的长度
|
||
|
||
#region 获取文件大小并以B，KB，GB，TB
|
||
|
||
/// <summary>
|
||
/// 计算文件大小函数(保留两位小数),Size为字节大小
|
||
/// </summary>
|
||
/// <param name="size">初始文件大小</param>
|
||
/// <returns></returns>
|
||
public static string ToFileSize(long size)
|
||
{
|
||
string m_strSize = "";
|
||
long FactSize = 0;
|
||
FactSize = size;
|
||
if (FactSize < 1024.00)
|
||
m_strSize = FactSize.ToString("F2") + " 字节";
|
||
else if (FactSize >= 1024.00 && FactSize < 1048576)
|
||
m_strSize = (FactSize / 1024.00).ToString("F2") + " KB";
|
||
else if (FactSize >= 1048576 && FactSize < 1073741824)
|
||
m_strSize = (FactSize / 1024.00 / 1024.00).ToString("F2") + " MB";
|
||
else if (FactSize >= 1073741824)
|
||
m_strSize = (FactSize / 1024.00 / 1024.00 / 1024.00).ToString("F2") + " GB";
|
||
return m_strSize;
|
||
}
|
||
|
||
#endregion 获取文件大小并以B，KB，GB，TB
|
||
|
||
#region 将文件读取到字符串中
|
||
|
||
/// <summary>
|
||
/// 将文件读取到字符串中
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
public static string FileToString(string filePath)
|
||
{
|
||
return FileToString(filePath, Encoding.UTF8);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将文件读取到字符串中
|
||
/// </summary>
|
||
/// <param name="filePath">文件的绝对路径</param>
|
||
/// <param name="encoding">字符编码</param>
|
||
public static string FileToString(string filePath, Encoding encoding)
|
||
{
|
||
//创建流读取器
|
||
StreamReader reader = new StreamReader(filePath, encoding);
|
||
try
|
||
{
|
||
//读取流
|
||
return reader.ReadToEnd();
|
||
}
|
||
finally
|
||
{
|
||
//关闭流读取器
|
||
reader.Close();
|
||
}
|
||
}
|
||
|
||
#endregion 将文件读取到字符串中
|
||
|
||
#region 判断文件
|
||
|
||
// 判断文件是否是bai图片
|
||
public static bool IsPicture(string fileName)
|
||
{
|
||
string strFilter = ".jpeg|.gif|.jpg|.png|.bmp|.pic|.tiff|.ico|.iff|.lbm|.mag|.mac|.mpt|.opt|";
|
||
char[] separtor = { '|' };
|
||
string[] tempFileds = StringSplit(strFilter, separtor);
|
||
foreach (string str in tempFileds)
|
||
{
|
||
if (str.ToUpper() == fileName.Substring(fileName.LastIndexOf("."), fileName.Length - fileName.LastIndexOf(".")).ToUpper()) { return true; }
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// 判断文件是否是excle
|
||
public static bool IsExcel(string fileName)
|
||
{
|
||
string strFilter = ".xls|.xlsx|";
|
||
char[] separtor = { '|' };
|
||
string[] tempFileds = StringSplit(strFilter, separtor);
|
||
foreach (string str in tempFileds)
|
||
{
|
||
if (str.ToUpper() == fileName.Substring(fileName.LastIndexOf("."), fileName.Length - fileName.LastIndexOf(".")).ToUpper()) { return true; }
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// 通过字符串，分隔符返回zhistring[]数组
|
||
public static string[] StringSplit(string s, char[] separtor)
|
||
{
|
||
string[] tempFileds = s.Trim().Split(separtor); return tempFileds;
|
||
}
|
||
|
||
#endregion 判断文件
|
||
}
|
||
} |