using System.IO.Compression;
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namespace DocumentFile.Service
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{
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public interface IUploadService
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{
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Task<ReturnMsg> HandleUploadWordFile(IFormFile iFormFile,string code,string name);
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//Task<ReturnMsg> HandleUploadTemplateFile(IFormFile iFormFile, string code);
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Task<ReturnMsg> HandleUploadImageFile(IFormFile iFormFile, string code);
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//(string fileType, byte[] archiveData, string archiveName) DownloadFiles(string subDirectory);
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}
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public class UploadService : IUploadService
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{
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private readonly string _webRootPath;
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public UploadService()
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{
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_webRootPath = AppDomain.CurrentDomain.BaseDirectory;
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}
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/// <summary>
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/// 上传文件 辅助函数
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/// </summary>
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/// <param name="formFile"></param>
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/// <param name="tenant">文件夹客户标识</param>
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/// <param name="folder">文件夹分类标签</param>
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/// <param name="format"></param>
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/// <returns></returns>
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protected async virtual Task<ReturnMsg> HandleUploadFile(IFormFile formFile,string tenant, string folder,string name, params string[] format)
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{
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ReturnMsg msg = new ReturnMsg();
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try
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{
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var extensionName = Path.GetExtension(formFile.FileName)?.ToLower().Trim(); //获取后缀名
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if (format != null && format.Length > 0 && !format.ToList().Contains(extensionName.ToLower()))
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{
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msg.error = "请上传后缀名为：" + string.Join("、", format) + " 格式的文件";
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}
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else
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{
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string path;
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if (string.IsNullOrEmpty(name))
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{
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//服务器命名
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path = $"/uploads/{tenant}/{folder}/{DateTime.Now:yyyyMMdd}";
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var dir = this._webRootPath + path;
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if (!Directory.Exists(dir))
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{
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Directory.CreateDirectory(dir);
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}
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var filename = CreateName(path, extensionName);
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path +="/" + filename;
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}
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else
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{
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//本地上传命名
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path = name;
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string baseDirectory = Path.GetDirectoryName(this._webRootPath + name);
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if (!Directory.Exists(baseDirectory))
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{
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Directory.CreateDirectory(baseDirectory);
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}
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}
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// 创建新文件
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using var fs = File.Create(this._webRootPath + path);
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await formFile.CopyToAsync(fs);
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// 清空缓冲区数据
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fs.Flush();
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msg.code = 1;
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msg.url = path;
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}
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}
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catch (Exception er)
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{
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msg.code = -1;
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msg.error = "上传失败";
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NLogProvider.GetInstance().Error(er);
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}
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return msg;
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}
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/// <summary>
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/// 生成唯一的文件名
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/// </summary>
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/// <param name="path"></param>
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/// <param name="extensionName"></param>
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/// <returns></returns>
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private string CreateName(string path,string extensionName)
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{
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var filename = $"ZC_{DateTime.Now:HHmmssfff}" + extensionName;
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if (File.Exists(path + "/" + filename))
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{
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return CreateName(path, extensionName);
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}
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else
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{
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return filename;
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}
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}
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/// <summary>
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/// 上传word文件
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/// </summary>
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/// <param name="iFormFile"></param>
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/// <param name="format"></param>
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/// <returns></returns>
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public async virtual Task<ReturnMsg> HandleUploadWordFile(IFormFile iFormFile, string code,string name)
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=> await this.HandleUploadFile(iFormFile,code, "Word",name, ".doc",".docx");
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///// <summary>
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///// 上传word模板文件
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///// </summary>
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///// <param name="iFormFile"></param>
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///// <param name="format"></param>
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///// <returns></returns>
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//public async virtual Task<ReturnMsg> HandleUploadTemplateFile(IFormFile iFormFile, string code)
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// => await this.HandleUploadFile(iFormFile, code, "Template", ".doc", ".docx");
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/// <summary>
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/// 上传图片
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/// </summary>
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/// <param name="iFormFile"></param>
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/// <param name="folder"></param>
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/// <returns></returns>
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public async virtual Task<ReturnMsg> HandleUploadImageFile(IFormFile iFormFile, string code)
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=> await this.HandleUploadFile(iFormFile, code, "Photo","", ".jpg", ".jpeg", ".png");
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/*, ".gif", ".jfif"*/
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///// <summary>
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///// 下载证书文件
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///// 打包zip
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///// </summary>
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///// <param name="subDirectory"></param>
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///// <returns></returns>
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//public (string fileType, byte[] archiveData, string archiveName) DownloadFiles(string path)
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//{
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// using var memoryStream = new MemoryStream();
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// using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
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// {
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// files.ForEach(file =>
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// {
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// var theFile = archive.CreateEntry(Path.GetFileName(file));
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// using var binaryWriter = new BinaryWriter(theFile.Open());
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// binaryWriter.Write(File.ReadAllBytes(file));
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// });
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// }
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// return ("application/zip", memoryStream.ToArray(), zipName);
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//}
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}
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}
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