FileService.cs
2.91 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Mapster;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Volo.Abp;
using Volo.Abp.Application.Services;
using Volo.Abp.Caching;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.Guids;
using Yi.Framework.Core.Enums;
using Yi.Framework.Core.Helper;
using Yi.Framework.Rbac.Application.Contracts.Dtos.FileManager;
using Yi.Framework.Rbac.Application.Contracts.IServices;
using Yi.Framework.Rbac.Domain.Entities;
using Yi.Framework.Rbac.Domain.Managers;
using Yi.Framework.Rbac.Domain.Shared.Caches;
namespace Yi.Framework.Rbac.Application.Services
{
public class FileService : ApplicationService, IFileService
{
private readonly IRepository<FileAggregateRoot> _repository;
private readonly FileManager _fileManager;
private readonly IMemoryCache _memoryCache;
public FileService(IRepository<FileAggregateRoot> repository, FileManager fileManager, IMemoryCache memoryCache)
{
_repository = repository;
_fileManager = fileManager;
_memoryCache = memoryCache;
}
/// <summary>
/// 下载文件,支持缩略图
/// </summary>
/// <returns></returns>
[Route("file/{code}/{isThumbnail?}")]
public async Task<IActionResult> Get([FromRoute] Guid code, [FromRoute] bool? isThumbnail)
{
var fileCache = await _memoryCache.GetOrCreateAsync($"File:{code}", async (options) =>
{
options.AbsoluteExpiration = DateTime.Now.AddDays(1);
var file = await _repository.GetAsync(x => x.Id == code);
if (file == null!) return null;
return file.Adapt<FileCacheItem>();
});
var file = fileCache?.Adapt<FileAggregateRoot>();
var path = file?.GetQueryFileSavePath(isThumbnail);
if (path is null || !File.Exists(path))
{
return new NotFoundResult();
}
var stream = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
return new FileStreamResult(stream, file!.GetMimeMapping());
}
/// <summary>
/// 上传文件
/// </summary>
/// <returns></returns>
public async Task<List<FileGetListOutputDto>> Post([FromForm] IFormFileCollection file)
{
var entities = await _fileManager.CreateAsync(file);
for (int i = 0; i < file.Count; i++)
{
var entity = entities[i];
using (var steam = file[i].OpenReadStream())
{
await _fileManager.SaveFileAsync(entity, steam);
}
}
return entities.Adapt<List<FileGetListOutputDto>>();
}
}
}