我正在使用.Net Core开发Web API,我需要允许客户端上传文件列表(主要是图像)并将其保存到服务器。
我正在使用ASP.NET Core 3.0
这是我的启动文件 Startup.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.HttpsPolicy;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Microsoft.AspNetCore.Http;
namespace ImageUplaodDemo
{
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
}
这是我的ImageController文件 ImageController.cs:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
namespace ImageUploadDemo.Controllers
{
[Route("api/[controller]")]
public class ImageController : ControllerBase
{
public static IHostingEnvironment _environment;
public ImageController(IHostingEnvironment environment)
{
_environment = environment;
}
public class FIleUploadAPI
{
public IFormFile files { get; set; }
}
[HttpPost]
public async Task<string> Post(FIleUploadAPI files)
{
if (files.files.Length > 0)
{
try
{
if (!Directory.Exists(_environment.WebRootPath + "\\uploads\\"))
{
Directory.CreateDirectory(_environment.WebRootPath + "\\uploads\\");
}
using (FileStream filestream = System.IO.File.Create(_environment.WebRootPath + "\\uploads\\" + files.files.FileName))
{
files.files.CopyTo(filestream);
filestream.Flush();
return "\\uploads\\" + files.files.FileName;
}
}
catch (Exception ex)
{
return ex.ToString();
}
}
else
{
return "Unsuccessful";
}
}
}
}
我正在尝试使用POSTMAN通过POST操作上传图像。 我使用Body标记下的表格数据将REQUEST分配给POST和即时消息,并将KEY分配为文件以从桌面上载文件。但是我收到以下错误。
我已经尝试了所有可能的方法,但是遇到了相同的错误...
检查代码一次,就需要对代码进行任何修改或对邮递员进行任何修改。...
{
"type": "https://tools.ietf.org/html/rfc7231#section-6.5.13",
"title": "Unsupported Media Type",
"status": 415,
"detail": null,
"instance": null,
"extensions": {
"traceId": "|2c45b532-43521b159e7b734f."
}
}
答案 0 :(得分:-1)
1。您需要添加app.UseStaticFiles();
,如下所示:
app.UseRouting();
app.UseStaticFiles();
app.UseAuthorization();
2。确保已在Web根目录中添加了wwwroot文件夹:
更新:
Here是我的专案。