146 lines
4.7 KiB
C#
146 lines
4.7 KiB
C#
using DouyinApi.Model;
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using DouyinApi.Model.ViewModels;
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using Microsoft.AspNetCore.Authorization;
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using Microsoft.AspNetCore.Mvc;
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namespace DouyinApi.Controllers
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{
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/// <summary>
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/// 图片管理
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/// </summary>
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[Route("api/[controller]")]
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[ApiController]
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[Authorize]
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public class ImgController : BaseApiController
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{
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private readonly IWebHostEnvironment _env;
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public ImgController(IWebHostEnvironment webHostEnvironment)
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{
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_env = webHostEnvironment;
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}
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// GET: api/Download
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/// <summary>
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/// 下载图片（支持中文字符）
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/// </summary>
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/// <returns></returns>
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[HttpGet]
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[Route("/images/Down/Pic")]
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public FileStreamResult DownImg()
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{
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string foldername = "";
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string filepath = Path.Combine(_env.WebRootPath, foldername, "测试下载中文名称的图片.png");
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var stream = System.IO.File.OpenRead(filepath);
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string fileExt = ".jpg"; // 这里可以写一个获取文件扩展名的方法，获取扩展名
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//获取文件的ContentType
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var provider = new Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider();
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var memi = provider.Mappings[fileExt];
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var fileName = Path.GetFileName(filepath);
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return File(stream, memi, fileName);
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}
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/// <summary>
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/// 上传图片,多文件
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/// </summary>
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/// <param name="dto"></param>
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/// <returns></returns>
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[HttpPost]
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[Route("/images/Upload/Pic")]
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public async Task<MessageModel<string>> InsertPicture([FromForm]UploadFileDto dto)
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{
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if (dto.file == null || !dto.file.Any()) return Failed("请选择上传的文件。");
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//格式限制
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var allowType = new string[] { "image/jpg", "image/png", "image/jpeg" };
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var allowedFile = dto.file.Where(c => allowType.Contains(c.ContentType));
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if (!allowedFile.Any()) return Failed("图片格式错误");
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if (allowedFile.Sum(c => c.Length) > 1024 * 1024 * 4) return Failed("图片过大");
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string foldername = "images";
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string folderpath = Path.Combine(_env.WebRootPath, foldername);
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if (!Directory.Exists(folderpath))
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{
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Directory.CreateDirectory(folderpath);
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}
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foreach (var file in allowedFile)
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{
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string strpath = Path.Combine(foldername, DateTime.Now.ToString("MMddHHmmss") + Path.GetFileName(file.FileName));
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var path = Path.Combine(_env.WebRootPath, strpath);
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using (var stream = new FileStream(path, FileMode.OpenOrCreate, FileAccess.ReadWrite))
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{
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await file.CopyToAsync(stream);
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}
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}
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var excludeFiles = dto.file.Except(allowedFile);
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if (excludeFiles.Any())
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{
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var infoMsg = $"{string.Join('、', excludeFiles.Select(c => c.FileName))} 图片格式错误";
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return Success<string>(null, infoMsg);
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}
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return Success<string>(null, "上传成功");
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}
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[HttpGet]
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[Route("/images/Down/Bmd")]
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[AllowAnonymous]
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public FileStreamResult DownBmd(string filename)
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{
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if (string.IsNullOrEmpty(filename))
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{
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return null;
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}
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// 前端 blob 接收，具体查看前端admin代码
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string filepath = Path.Combine(_env.WebRootPath, Path.GetFileName(filename));
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if (System.IO.File.Exists(filepath))
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{
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var stream = System.IO.File.OpenRead(filepath);
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//string fileExt = ".bmd";
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//获取文件的ContentType
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var provider = new Microsoft.AspNetCore.StaticFiles.FileExtensionContentTypeProvider();
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//var memi = provider.Mappings[fileExt];
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var fileName = Path.GetFileName(filepath);
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HttpContext.Response.Headers.Add("fileName", fileName);
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return File(stream, "application/octet-stream", fileName);
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}
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else
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{
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return null;
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}
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}
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// POST: api/Img
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[HttpPost]
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public void Post([FromBody] object formdata)
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{
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}
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// PUT: api/Img/5
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[HttpPut("{id}")]
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public void Put(int id, [FromBody] string value)
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{
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}
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// DELETE: api/ApiWithActions/5
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[HttpDelete("{id}")]
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public void Delete(int id)
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{
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}
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}
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}
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