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307 lines
11 KiB
307 lines
11 KiB
using Serilog;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Wood.Util
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{
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public class FileHelper
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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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var folderName = Path.GetDirectoryName(path);
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if (!string.IsNullOrEmpty(folderName))
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Directory.CreateDirectory(folderName);
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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
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#region 上传单个文件
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/// <summary>
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/// 上传单个文件
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/// </summary>
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/// <param name="fileModule"></param>
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/// <param name="fileCollection"></param>
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/// <returns></returns>
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//public async static Task<TData<string>> UploadFile(int fileModule, IFormFileCollection files)
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//{
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//string dirModule = string.Empty;
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//TData<string> obj = new TData<string>();
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//if (files == null || files.Count == 0)
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//{
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// obj.Message = "请先选择文件！";
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// return obj;
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//}
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//if (files.Count > 1)
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//{
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// obj.Message = "一次只能上传一个文件！";
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// return obj;
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//}
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//TData objCheck = null;
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//IFormFile file = files[0];
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//switch (fileModule)
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//{
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// case (int)UploadFileType.Portrait:
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// objCheck = CheckFileExtension(Path.GetExtension(file.FileName), ".jpg|.jpeg|.gif|.png");
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// if (objCheck.Tag != 1)
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// {
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// obj.Message = objCheck.Message;
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// return obj;
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// }
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// dirModule = UploadFileType.Portrait.ToString();
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// break;
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// case (int)UploadFileType.News:
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// if (file.Length > 5 * 1024 * 1024) // 5MB
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// {
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// obj.Message = "文件最大限制为 5MB";
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// return obj;
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// }
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// objCheck = CheckFileExtension(Path.GetExtension(file.FileName), ".jpg|.jpeg|.gif|.png");
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// if (objCheck.Tag != 1)
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// {
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// obj.Message = objCheck.Message;
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// return obj;
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// }
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// dirModule = UploadFileType.News.ToString();
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// break;
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// case (int)UploadFileType.Import:
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// objCheck = CheckFileExtension(Path.GetExtension(file.FileName), ".xls|.xlsx");
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// if (objCheck.Tag != 1)
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// {
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// obj.Message = objCheck.Message;
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// return obj;
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// }
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// dirModule = UploadFileType.Import.ToString();
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// break;
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// default:
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// obj.Message = "请指定上传到的模块";
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// return obj;
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//}
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//string fileExtension = TextHelper.GetCustomValue(Path.GetExtension(file.FileName), ".png");
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//string newFileName = SecurityHelper.GetGuid(true) + fileExtension;
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//string dir = "Resource" + Path.DirectorySeparatorChar + dirModule + Path.DirectorySeparatorChar + DateTime.Now.ToString("yyyy-MM-dd").Replace('-', Path.DirectorySeparatorChar) + Path.DirectorySeparatorChar;
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//string absoluteDir = Path.Combine(GlobalContext.HostingEnvironment.ContentRootPath, dir);
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//string absoluteFileName = string.Empty;
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//if (!Directory.Exists(absoluteDir))
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//{
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// Directory.CreateDirectory(absoluteDir);
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//}
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//absoluteFileName = absoluteDir + newFileName;
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//try
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//{
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// using (FileStream fs = File.Create(absoluteFileName))
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// {
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// await file.CopyToAsync(fs);
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// fs.Flush();
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// }
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// obj.Data = Path.AltDirectorySeparatorChar + ConvertDirectoryToHttp(dir) + newFileName;
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// obj.Message = Path.GetFileNameWithoutExtension(TextHelper.GetCustomValue(file.FileName, newFileName));
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// obj.Description = (file.Length / 1024).ToString(); // KB
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// obj.Tag = 1;
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//}
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//catch (Exception ex)
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//{
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// obj.Message = ex.Message;
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//}
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//return obj;
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//}
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#endregion
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#region 删除单个文件
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///// <summary>
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///// 删除单个文件
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///// </summary>
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///// <param name="fileModule"></param>
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///// <param name="filePath"></param>
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///// <returns></returns>
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//public static TData<string> DeleteFile(int fileModule, string filePath)
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//{
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// TData<string> obj = new TData<string>();
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// string dirModule = fileModule.GetDescriptionByEnum<UploadFileType>();
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// if (string.IsNullOrEmpty(filePath))
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// {
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// obj.Message = "请先选择文件！";
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// return obj;
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// }
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// filePath = FilterFilePath(filePath);
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// filePath = "Resource" + Path.DirectorySeparatorChar + dirModule + Path.DirectorySeparatorChar + filePath;
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// string absoluteDir = Path.Combine(GlobalContext.HostingEnvironment.ContentRootPath, filePath);
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// try
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// {
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// if (File.Exists(absoluteDir))
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// {
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// File.Delete(absoluteDir);
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// }
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// else
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// {
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// obj.Message = "文件不存在";
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// }
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// obj.Tag = 1;
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// }
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// catch (Exception ex)
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// {
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// obj.Message = ex.Message;
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// }
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// return obj;
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//}
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#endregion
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#region 下载文件
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///// <summary>
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///// 下载文件
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///// </summary>
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///// <param name="filePath"></param>
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///// <param name="delete"></param>
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///// <returns></returns>
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//public static TData<FileContentResult> DownloadFile(string filePath, int delete)
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//{
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// filePath = FilterFilePath(filePath);
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// if (!filePath.StartsWith("wwwroot") && !filePath.StartsWith("Resource"))
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// {
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// throw new Exception("非法访问");
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// }
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// TData<FileContentResult> obj = new TData<FileContentResult>();
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// string absoluteFilePath = GlobalContext.HostingEnvironment.ContentRootPath + Path.DirectorySeparatorChar + filePath.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
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// byte[] fileBytes = File.ReadAllBytes(absoluteFilePath);
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// if (delete == 1)
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// {
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// File.Delete(absoluteFilePath);
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// }
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// // md5 值
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// string fileNamePrefix = DateTime.Now.ToString("yyyyMMddHHmmss");
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// string fileNameWithoutExtension = Path.GetFileNameWithoutExtension(filePath);
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// string title = fileNameWithoutExtension;
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// if (fileNameWithoutExtension.Contains("_"))
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// {
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// title = fileNameWithoutExtension.Split('_')[1].Trim();
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// }
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// string fileExtensionName = Path.GetExtension(filePath);
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// obj.Data = new FileContentResult(fileBytes, "application/octet-stream")
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// {
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// FileDownloadName = string.Format("{0}_{1}{2}", fileNamePrefix, title, fileExtensionName)
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// };
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// obj.Tag = 1;
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// return obj;
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//}
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#endregion
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#region GetContentType
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public static string GetContentType(string path)
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{
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var types = GetMimeTypes();
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var ext = Path.GetExtension(path).ToLowerInvariant();
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var contentType = types[ext];
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if (string.IsNullOrEmpty(contentType))
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{
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contentType = "application/octet-stream";
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}
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return contentType;
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}
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#endregion
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#region GetMimeTypes
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public static Dictionary<string, string> GetMimeTypes()
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{
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return new Dictionary<string, string>
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{
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{".txt", "text/plain"},
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{".pdf", "application/pdf"},
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{".doc", "application/vnd.ms-word"},
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{".docx", "application/vnd.ms-word"},
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{".xls", "application/vnd.ms-excel"},
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{".xlsx", "application/vnd.openxmlformats officedocument.spreadsheetml.sheet"},
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{".png", "image/png"},
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{".jpg", "image/jpeg"},
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{".jpeg", "image/jpeg"},
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{".gif", "image/gif"},
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{".csv", "text/csv"}
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};
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}
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#endregion
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public static void CreateDirectory(string directory)
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{
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if (!Directory.Exists(directory))
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{
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Directory.CreateDirectory(directory);
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}
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}
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public static void DeleteDirectory(string filePath)
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{
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try
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{
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if (Directory.Exists(filePath)) //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(filePath))
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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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DeleteDirectory(d); //递归删除子文件夹
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}
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Directory.Delete(filePath, true); //删除已空文件夹
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}
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}
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catch (Exception ex)
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{
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Log.Error(ex, "文件夹删除失败：filePath（{filePath}）", filePath);
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}
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}
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public static string ConvertDirectoryToHttp(string directory)
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{
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directory = directory.ToString();
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directory = directory.Replace(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
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return directory;
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}
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public static string ConvertHttpToDirectory(string http)
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{
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http = http.ToString();
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http = http.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
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return http;
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}
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//public static TData CheckFileExtension(string fileExtension, string allowExtension)
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//{
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// TData obj = TData.Success();
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// string[] allowArr = TextHelper.SplitToArray<string>(allowExtension.ToLower(), '|');
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// if (allowArr.Where(p => p.Trim() == fileExtension.ParseToString().ToLower()).Any())
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// return obj;
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// else
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// {
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// obj.Message = "只有文件扩展名是 " + allowExtension + " 的文件才能上传";
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// return obj;
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// }
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//}
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public static string FilterFilePath(string filePath)
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{
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filePath = filePath.Replace("../", string.Empty);
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filePath = filePath.Replace("..", string.Empty);
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filePath = filePath.TrimStart('/');
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return filePath;
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}
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}
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}
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