.net6文件上传浏览API

小型文件系统，可上传，可浏览；

支持图片、视频、音频

   [HttpGet]
        [Route("CheckService")]
        public string CheckService()
        {
            return "文件服务正常运行！";
        }

        /// <summary>
        /// 上传文件
        /// </summary>
        /// <param name="fileinfo">文件信息</param>
        /// <returns></returns>
        [HttpPost]
        [Route("UploadFile")]
        public JsonResult UploadFile([FromForm] UploadFileInfo fileinfo)
        {
            UploadResult rt = new UploadResult();
            try
            {

                //文件保存目录路径
                string saveTempPath = "web\\" + fileinfo.AppCode + "\\" + fileinfo.FileType + "\\" + fileinfo.CreateDate+"\\";
                //判断目录是否存在
                string dirTempPath = this._evn.ContentRootPath + saveTempPath;
                //文件保存路径
                string filepath = dirTempPath + fileinfo.ID + fileinfo.Ext;

                if (!Directory.Exists(dirTempPath))
                {
                    Directory.CreateDirectory(dirTempPath);
                }

                var files =  Request.Form.Files;

                if(files.Count==0)
                {
                    rt.Sucess = false;
                    rt.ErroInfo = "未上传文件！";

                    return Json(rt);
                }
                
                //已存在，删除原文件
                if (System.IO.File.Exists(filepath))
                {
                    System.IO.File.Delete(filepath);
                }

                using (var stream = new FileStream(filepath, FileMode.Create))
                {
                    files[0].CopyTo(stream);
                    stream.Close();
                }


                rt.Sucess = true;
                rt.SavePath = filepath;


            }
            catch (Exception ex)
            {
                rt.Sucess = false;
                rt.ErroInfo = "UploadFile Exception:" + ex.Message;
                this._logger.LogError(ex, "文件上传异常：", ex.Message);
                
            }

            rt.End();
           
            return Json(rt);
        }

        /// <summary>
        /// 删除文件
        /// </summary>
        /// <param name="fileInfo"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("DeleteFile")]
        public JsonResult DeleteFile([FromBody] UploadFileInfo fileInfo)
        {
            UploadResult rt = new UploadResult();

            //文件保存目录路径
            string saveTempPath = "web\\" + fileInfo.AppCode + "\\" + fileInfo.FileType + "\\" + fileInfo.CreateDate + "\\";
            //判断目录是否存在
            string dirTempPath = this._evn.WebRootPath + saveTempPath;
            //文件保存路径
            string filepath = dirTempPath + fileInfo.ID + fileInfo.Ext;

            //已存在，删除原文件
            if (System.IO.File.Exists(filepath))
            {
                System.IO.File.Delete(filepath);
                rt.Sucess = true;
            }
            else
            {
                rt.Sucess = false;
                rt.ErroInfo = "文件不存在!"+ filepath;
            }

            rt.End();

            return Json(rt);
        }

public class UploadFileInfo
    {
        /// <summary>
        /// 文件ID
        /// </summary>
        public string ID { get; set; }
        /// <summary>
        /// 扩展名 .jpg/.png .mp4/.avi .mp3 .pdf
        /// </summary>
        public string Ext { get; set; }
        /// <summary>
        /// 显示名称
        /// </summary>
        public string DisplayName { get; set; }
        /// <summary>
        /// 应用编码 JHNIS
        /// </summary>
        public string AppCode { get; set; }
        /// <summary>
        /// 文件类型 图片 Image 文件 PDF 视频 Video 声音Sound
        /// </summary>
        public string FileType { get; set; }
        /// <summary>
        /// 创建日期 yyMMdd
        /// </summary>
        public string CreateDate { get; set; }

    }

using JHNIS.CloudStore.WebApi.Controllers;
using Microsoft.AspNetCore.StaticFiles;
using Microsoft.Extensions.FileProviders;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

//添加HttpContext
builder.Services.AddHttpContextAccessor();


var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseAuthorization();

app.MapControllers();

//启用静态文件
app.UseStaticFiles();

//发布时服务器注册静态资源 
string fileUpload = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "web");
if (!Directory.Exists(fileUpload))
{
    Directory.CreateDirectory(fileUpload); 
}

//pdf.js 读取properties 404的问题
var providerContent = new FileExtensionContentTypeProvider();
providerContent.Mappings[".properties"] = "application/octet-stream";

app.UseStaticFiles(new StaticFileOptions
{
    FileProvider = new PhysicalFileProvider(fileUpload),
    RequestPath = "/web",
    ContentTypeProvider= providerContent
});

app.Run();