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.net core webapi 大文件上傳到wwwroot文件夾的操作代碼

更新時(shí)間：2023年12月25日 14:40:56 作者：彭小彭~

這篇文章主要介紹了.net core webapi 大文件上傳到wwwroot文件夾的操作代碼,本文通過示例代碼給大家介紹的非常詳細(xì),對大家的學(xué)習(xí)或工作具有一定的參考借鑒價(jià)值,需要的朋友參考下吧

1.配置staticfiles(program文件中)

 app.UseStaticFiles();

2.在wwwroot下創(chuàng)建upload文件夾
3.返回結(jié)果封裝

namespace webapi;
/// <summary>
/// 統(tǒng)一數(shù)據(jù)響應(yīng)格式
/// </summary>
public class Results<T>
{
    /// <summary>
    /// 自定義的響應(yīng)碼，可以和http響應(yīng)碼一致，也可以不一致
    /// </summary>
    public int Code { get; set; }
    /// <summary>
    /// 中文消息提示
    /// </summary>
    public string? Msg { get; set; }
    /// <summary>
    /// 是否成功
    /// </summary>
    public bool Success { get; set; }
    /// <summary>
    /// 響應(yīng)的數(shù)據(jù)
    /// </summary>
    public T? Data { get; set; }
    /// <summary>
    /// 返回的Token: 如果有值，則前端需要此這個(gè)值替舊的token值
    /// </summary>
    public string? Token { get; set; }
    /// <summary>
    /// 設(shè)置數(shù)據(jù)的結(jié)果
    /// </summary>
    /// <param name="data">數(shù)據(jù)</param>
    /// <returns></returns>
    public static Results<T> DataResult(T data)
    {
        return new Results<T> { Code = 1, Data = data, Msg = "請求成功", Success = true };
    }
    /// <summary>
    /// 響應(yīng)成功的結(jié)果
    /// </summary>
    /// <param name="msg"></param>
    /// <returns></returns>
    public static Results<T> SuccessResult(string msg = "操作成功")
    {
        return new Results<T> { Code = 1, Data = default, Msg = msg, Success = true };
    }
    /// <summary>
    /// 響應(yīng)失敗的結(jié)果
    /// </summary>
    /// <param name="msg"></param>
    /// <returns></returns>
    public static Results<T> FailResult(string msg = "請求失敗")
    {
        return new Results<T> { Code = -1, Data = default, Msg = msg, Success = false };
    }
    /// <summary>
    /// 參數(shù)有誤
    /// </summary>
    /// <param name="msg"></param>
    /// <returns></returns>
    public static Results<T> InValidParameter(string msg = "參數(shù)有誤")
    {
        return new Results<T> { Code = -1, Data = default, Msg = msg, Success = false };
    }
    /// <summary>
    /// 獲取結(jié)果
    /// </summary>
    /// <param name="code"></param>
    /// <param name="msg"></param>
    /// <param name="data"></param>
    /// <param name="success"></param>
    /// <returns></returns>
    public static Results<T> GetResult(int code = 0, string? msg = null, T? data = default, bool success = true)
    {
        return new Results<T> { Code = code, Data = data, Msg = msg, Success = success };
    }
    /// <summary>
    /// 設(shè)置token結(jié)果
    /// </summary>
    /// <param name="token"></param>
    /// <returns></returns>
    public static Results<T> TokenResult(string token)
    {
        return new Results<T> { Code = 1, Data = default, Msg = "請求成功", Success = true, Token = token };
    }
}

4.創(chuàng)建一個(gè)新的控制器

using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.WebUtilities;
using Microsoft.Net.Http.Headers;
namespace webapi.Controllers;
/// <summary>
/// 文件上傳
/// </summary>
[ApiController]
[Route("[controller]/[action]")]
public class UploadController : ControllerBase
{
    private readonly IWebHostEnvironment _hostEnvironment;
    /// <summary>
    /// 注入服務(wù)
    /// </summary>
    /// <param name="hostEnvironment"></param>
    public UploadController(IWebHostEnvironment hostEnvironment)
    {
        _hostEnvironment = hostEnvironment;
    }
    /// <summary>
    /// 上傳文件（支持多文件/大文件500M）
    /// </summary>
    /// <returns></returns>
    [HttpPost]
    [RequestFormLimits(MultipartBodyLengthLimit = 609715200)]
    [RequestSizeLimit(609715200)]
    public async Task<Results<List<string>>> UploadFile()
    {
        var request = HttpContext.Request;
        if (!request.HasFormContentType ||
            !MediaTypeHeaderValue.TryParse(request.ContentType, out var mediaTypeHeader) ||
            string.IsNullOrEmpty(mediaTypeHeader.Boundary.Value))
        {
            return Results<List<string>>.FailResult("文件類型不支持");
        }
        var reader = new MultipartReader(mediaTypeHeader.Boundary.Value, request.Body);
        var section = await reader.ReadNextSectionAsync();
        List<string> serverFilePathList = new();
        while (section != null)
        {
            var hasContentDispositionHeader = ContentDispositionHeaderValue.TryParse(section.ContentDisposition,
                out var contentDisposition);
            if (hasContentDispositionHeader && contentDisposition!.DispositionType.Equals("form-data") &&
                !string.IsNullOrEmpty(contentDisposition.FileName.Value))
            {
                // 獲取文件后綴名
                var extension = Path.GetExtension(contentDisposition.FileName.Value);
                // 為文件重命名，防止文件重名
                var fileName = DateTime.Now.ToString("yyyyMMddHHmmssfff") + extension;
                // 文件保存的文件夾路徑
                var uploadPath = Path.Combine(_hostEnvironment.WebRootPath, "upload");
                if (!Directory.Exists(uploadPath))
                {
                    Directory.CreateDirectory(uploadPath);
                }
                var fileFullPath = Path.Combine(uploadPath, fileName);
                try
                {
                    using var targetStream = System.IO.File.Create(fileFullPath);
                    await section.Body.CopyToAsync(targetStream);
                    serverFilePathList.Add("/upload/" + fileName);
                }
                catch (Exception e)
                {
                    Console.WriteLine(e);
                }
            }
            section = await reader.ReadNextSectionAsync();
        }
        return Results<List<string>>.DataResult(serverFilePathList);
    }
}

5.使用postman工具測試

在這里插入圖片描述