.net6,.net core 文件上传封装。枚举使用。封装通用的文件上传

封装的代码如下

using Microsoft.AspNetCore.Http;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
namespace WY.JBLand.API.Tools
{
    public enum UpLoadFileState { Sucess, TypeNoSupport, NoFile };
    public class UpLoadFileResult
    {
        public string FilePath { get; set; }
        public UpLoadFileState UpLoadFileState { get; set; }
    }
    /// <summary>
    /// 文件上传工具类封装
    /// </summary>
    public class UpLoadFileTools
    {
        public UpLoadFileResult FileUpLoad(IFormFileCollection files, string[] limitTypes, string savePath)
        {
            UpLoadFileResult upLoadFileResult = new UpLoadFileResult();
            if (files == null || files.Count == 0)
            {
                upLoadFileResult.UpLoadFileState = UpLoadFileState.NoFile;
                return upLoadFileResult;
            }
            foreach (IFormFile file in files)
            {
                //定义图片数组后缀格式
                //string[] LimitPictureType = { ".XLS" };
                //获取图片后缀是否存在数组中
                string currentPictureExtension = Path.GetExtension(file.FileName).ToUpper();
                if (!limitTypes.Contains(currentPictureExtension))
                {
                    upLoadFileResult.UpLoadFileState = UpLoadFileState.TypeNoSupport;
                    return upLoadFileResult;
                }
                //文件重命名防止重复
                var newName = Guid.NewGuid().ToString("N") + currentPictureExtension.ToLower();
                var new_path = Path.Combine("uploads/files/", newName);
                //判断一下存储路径是否存在，不存在就创建
                //var savaDir = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "uploads/files");
                var savaDir = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", savePath);
                if (!Directory.Exists(savaDir))
                    Directory.CreateDirectory(savaDir);
                string path = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", new_path);
                using (var stream = new FileStream(path, FileMode.Create))
                {
                    file.CopyTo(stream);
                    stream.Flush();
                    upLoadFileResult.FilePath = path;
                }
            }
            upLoadFileResult.UpLoadFileState = UpLoadFileState.Sucess;
            return upLoadFileResult;
        }
    }
}

调用

ReturnModel<int> returnModel = new ReturnModel<int>();
UpLoadFileTools upLoadFileTools = new UpLoadFileTools();
IFormFileCollection files = Request.Form.Files;
//定义图片数组后缀格式
string[] LimitTypes = { ".XLS" };
string savePath = "uploads/files";
UpLoadFileResult upLoadFileResult = upLoadFileTools.FileUpLoad(files, LimitTypes, savePath);
if (upLoadFileResult.UpLoadFileState == UpLoadFileState.NoFile)
{
    returnModel.Code = Enum.ResultCode.MESSAGE_ERROR;
    returnModel.Msg = "没有上传文件，无法导入，请检查";
    return returnModel;
}
if (upLoadFileResult.UpLoadFileState == UpLoadFileState.TypeNoSupport)
{
    returnModel.Code = Enum.ResultCode.MESSAGE_ERROR;
    returnModel.Msg = "暂时只支持excel导入，请检查";
    return returnModel;
}