using System;
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using System.Collections.Generic;
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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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using System.Threading.Tasks;
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using IStation.Untity;
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namespace IStation.Application
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{
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/// <summary>
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/// 处理文件辅助类
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/// </summary>
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public partial class FileHelper
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{
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#region Upload
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/// <summary>
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/// 上传文件 文件流形式
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/// </summary>
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/// <param name="suffix"></param>
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/// <param name="stream"></param>
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/// <returns></returns>
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public static string UploadFile(Stream stream, string suffix)
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{
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var root = ConfigHelper.DataPath;
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if (!Directory.Exists(root))
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Directory.CreateDirectory(root);
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var guid = GuidCreater.CreateN();
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var fileName = guid + suffix;
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var filePath = Path.Combine(root, fileName);
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StreamTransfer.ToFile(stream, filePath);
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return fileName;
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}
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/// <summary>
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/// 上传到子文件夹文件 文件流形式
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/// </summary>
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/// <param name="sub">子文件夹</param>
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/// <param name="suffix">文件拓展名</param>
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/// <param name="stream">文件流</param>
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/// <returns></returns>
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public static string UploadSubFile(string sub, Stream stream, string suffix)
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{
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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if (!Directory.Exists(root))
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Directory.CreateDirectory(root);
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var guid = GuidCreater.CreateN();
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var fileName = guid + suffix;
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var filePath = Path.Combine(root, fileName);
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StreamTransfer.ToFile(stream, filePath);
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return fileName;
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}
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/// <summary>
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/// 上传文件 字节形式
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/// </summary>
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/// <param name="bytes">字节流</param>
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/// <param name="suffix">文件拓展名</param>
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/// <returns></returns>
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public static string UploadFile(byte[] bytes, string suffix)
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{
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string root = ConfigHelper.DataPath;
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if (!Directory.Exists(root))
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Directory.CreateDirectory(root);
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var guid = GuidCreater.CreateN();
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var fileName = guid + suffix;
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var filePath = Path.Combine(root, fileName);
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System.IO.File.WriteAllBytes(filePath, bytes);
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return fileName;
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}
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/// <summary>
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/// 上传到子文件夹文件 字节形式
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/// </summary>
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/// <param name="sub">子文件夹名</param>
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/// <param name="suffix">文件拓展名</param>
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/// <param name="bytes">字节数组</param>
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/// <returns></returns>
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public static string UploadSubFile(string sub, byte[] bytes, string suffix)
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{
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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if (!Directory.Exists(root))
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Directory.CreateDirectory(root);
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var guid = GuidCreater.CreateN();
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var fileName = guid + suffix;
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var filePath = Path.Combine(root, fileName);
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System.IO.File.WriteAllBytes(filePath, bytes);
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return fileName;
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}
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#endregion
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#region Download
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/// <summary>
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/// 下载文件 文件流
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/// </summary>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static Stream DownloadFile(string fileName)
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{
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var root = ConfigHelper.DataPath;
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var filePath = Path.Combine(root, fileName);
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if (System.IO.File.Exists(filePath))
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{
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return StreamTransfer.FromFile(filePath);
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}
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return null;
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}
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/// <summary>
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/// 下载文件 文件流方式
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/// </summary>
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/// <param name="sub">子文件夹名</param>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static Stream DownloadSubFile(string sub, string fileName)
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{
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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var filePath = Path.Combine(root, fileName);
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if (System.IO.File.Exists(filePath))
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{
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return StreamTransfer.FromFile(filePath);
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}
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return default;
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}
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/// <summary>
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/// 下载文件 字节形式
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/// </summary>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static byte[] DownloadFile2(string fileName)
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{
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var root = ConfigHelper.DataPath;
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var filePath = Path.Combine(root, fileName);
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if (System.IO.File.Exists(filePath))
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{
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return System.IO.File.ReadAllBytes(filePath);
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}
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return default;
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}
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/// <summary>
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/// 下载文件 字节形式
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/// </summary>
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/// <param name="sub">子文件夹名</param>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static byte[] DownloadSubFile2(string sub, string fileName)
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{
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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var filePath = Path.Combine(root, fileName);
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if (System.IO.File.Exists(filePath))
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{
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return System.IO.File.ReadAllBytes(filePath);
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}
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return default;
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}
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#endregion
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#region Update
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/// <summary>
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/// 更新文件
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/// </summary>
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/// <param name="fileName">文件名称</param>
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/// <param name="stream">流</param>
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/// <param name="suffix">文件后缀</param>
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/// <returns></returns>
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public static string UpdateFile(string fileName, Stream stream, string suffix)
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{
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try
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{
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var code = UploadFile(stream, suffix);
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if (!string.IsNullOrEmpty(code))
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{
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if (!string.IsNullOrEmpty(fileName))
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Delete(fileName);
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}
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return code;
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}
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catch (Exception)
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{
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return default;
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}
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}
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/// <summary>
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/// 更新文件
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/// </summary>
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/// <param name="fileName">老文件名</param>
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/// <param name="suffix">文件后缀</param>
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/// <param name="bytes">字节流</param>
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/// <returns></returns>
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public static string UpdateFile2(string fileName, byte[] bytes, string suffix)
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{
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try
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{
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var code = UploadFile(bytes, suffix);
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if (!string.IsNullOrEmpty(code))
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{
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if (!string.IsNullOrEmpty(fileName))
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Delete(fileName);
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}
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return code;
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}
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catch (Exception)
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{
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return default;
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}
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}
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/// <summary>
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/// 更新文件
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/// </summary>
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/// <param name="sub">子文件夹</param>
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/// <param name="fileName">老文件名</param>
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/// <param name="suffix">文件后缀</param>
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/// <param name="stream">字节流</param>
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/// <returns></returns>
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public static string UpdateSubFile(string sub, string fileName, Stream stream, string suffix)
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{
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try
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{
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var code = UploadSubFile(sub, stream, suffix);
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if (!string.IsNullOrEmpty(code))
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{
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if (!string.IsNullOrEmpty(fileName))
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Delete(sub, fileName);
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}
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return code;
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}
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catch (Exception)
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{
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return null;
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}
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}
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/// <summary>
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/// 更新文件
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/// </summary>
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/// <param name="sub">子文件夹</param>
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/// <param name="fileName">老文件名</param>
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/// <param name="suffix">文件后缀</param>
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/// <param name="bytes">字节流</param>
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/// <returns></returns>
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public static string UpdateSubFile2(string sub, string fileName, byte[] bytes, string suffix)
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{
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try
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{
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var code = UploadSubFile(sub, bytes, suffix);
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if (!string.IsNullOrEmpty(code))
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{
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if (!string.IsNullOrEmpty(fileName))
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Delete(sub, fileName);
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}
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return code;
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}
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catch (Exception)
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{
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return null;
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}
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}
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#endregion
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#region Delete
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/// <summary>
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/// 删除文件
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/// </summary>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static bool Delete(string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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try
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{
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var root = ConfigHelper.DataPath;
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var filePath = System.IO.Path.Combine(root, fileName);
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if (System.IO.File.Exists(filePath))
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{
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System.IO.File.Delete(filePath);
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}
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}
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catch (Exception)
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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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/// <summary>
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/// 删除文件
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/// </summary>
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/// <param name="sub">子文件名</param>
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/// <param name="fileName">文件名称</param>
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/// <returns></returns>
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public static bool Delete(string sub, string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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var filePath = Path.Combine(root, fileName);
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try
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{
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if (System.IO.File.Exists(filePath))
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{
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System.IO.File.Delete(filePath);
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}
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}
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catch (Exception)
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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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#endregion
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#region Path
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/// <summary>
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/// 获取文件路径
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/// </summary>
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public static string GetFilePath(string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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var root = ConfigHelper.DataPath;
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var filePath = System.IO.Path.Combine(root, fileName);
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return filePath;
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}
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/// <summary>
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/// 获取文件相对路径
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/// </summary>
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public static string GetRelatedFilePath(string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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return $"{ConfigHelper.DataFolder}/{fileName}";
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}
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/// <summary>
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/// 获取文件路径
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/// </summary>
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public static string GetFilePath(string sub, string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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var filePath = Path.Combine(root, fileName);
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return filePath;
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}
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/// <summary>
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/// 获取文件路径2
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/// </summary>
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public static string GetFilePath2(string sub, string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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string root;
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if (string.IsNullOrEmpty(sub))
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{
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root = ConfigHelper.DataPath;
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}
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else
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{
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root = Path.Combine(ConfigHelper.DataPath, sub);
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}
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if (!Directory.Exists(root))
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Directory.CreateDirectory(root);
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var filePath = Path.Combine(root, fileName);
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return filePath;
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}
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/// <summary>
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/// 获取文件相对路径
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/// </summary>
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public static string GetRelatedFilePath(string sub, string fileName)
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{
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if (string.IsNullOrEmpty(fileName))
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return default;
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if (string.IsNullOrEmpty(sub))
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return GetRelatedFilePath(fileName);
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return $"{ConfigHelper.DataFolder}/{sub}/{fileName}";
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}
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#endregion
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}
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}
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