c# - ASP.NET Core 3.1 Web API 发布方法导致 405“方法不允许”错误

问题描述

新手第一次尝试创建 ASP.NET Core 3.1 Web API。

我的GET方法运行良好，但每当我尝试该POST方法时，我都会收到 405“不允许的方法”错误。我搜索和搜索，大多数解决方案似乎都集中在禁用 webDAV 是web.config文件或使用正确的路由路径。

我现在在本地运行，试图直接从 Visual Studio 2019 中测试出来，所以不web.config存在。我正在POST使用 Postman 向 URL 提交请求，http://localhost:58322/api/test/其中端口 58322 是运行项目时分配的端口。

有人可以告诉我我做错了什么吗？

这是我的代码TestController.cs：

using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using SimpleAPI.Models;

namespace SimpleAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class TestController : ControllerBase
    {
        private readonly appDBContext _context;

        public TestController(appDBContext context)
        {
            _context = context;
        }

        // GET: api/Test
        [HttpGet]
        public async Task<ActionResult<IEnumerable<Test>>> GetTest()
        {
            return await _context.Test.ToListAsync();
        }

        // GET: api/Test/5
        [HttpGet("{id}")]
        public async Task<ActionResult<Test>> GetTest(int id)
        {
            var test = await _context.Test.FindAsync(id);

            if (test == null)
            {
                return NotFound();
            }

            return test;
        }

        // PUT: api/Test/5
        // To protect from overposting attacks, enable the specific properties you want to bind to, for
        // more details, see https://go.microsoft.com/fwlink/?linkid=2123754.
        [HttpPut("{id}")]
        public async Task<IActionResult> PutTest(int id, Test test)
        {
            if (id != test.DataId)
            {
                return BadRequest();
            }

            _context.Entry(test).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!TestExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return NoContent();
        }

        // POST: api/Test
        // To protect from overposting attacks, enable the specific properties you want to bind to, for
        // more details, see https://go.microsoft.com/fwlink/?linkid=2123754.
        [HttpPost]
        public async Task<ActionResult<Test>> PostTest(Test test)
        {
            _context.Test.Add(test);
            await _context.SaveChangesAsync();

            return CreatedAtAction(nameof(GetTest), new { id = test.DataId }, test);
        }

        // DELETE: api/Test/5
        [HttpDelete("{id}")]
        public async Task<ActionResult<Test>> DeleteTest(int id)
        {
            var test = await _context.Test.FindAsync(id);
            if (test == null)
            {
                return NotFound();
            }

            _context.Test.Remove(test);
            await _context.SaveChangesAsync();

            return test;
        }

        private bool TestExists(int id)
        {
            return _context.Test.Any(e => e.DataId == id);
        }
    }
}

名为 test.cs 的模型类：

using System;
using System.Collections.Generic;

namespace SimpleAPI.Models
{
    public partial class Test
    {
        public int DataId { get; set; }
        public string Data { get; set; }
    }
}

我的 Startup.cs：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using SimpleAPI.Models;

namespace SimpleAPI
{
    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)
        {
            var connection = Configuration.GetConnectionString("myDatabase");
            services.AddDbContext<appDBContext>(options => options.UseSqlServer(connection));

            services.AddControllersWithViews();
        }

        // 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
            {
                app.UseExceptionHandler("/Home/Error");
            }
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllerRoute(
                    name: "default",
                    pattern: "{controller=Test}/{action=Index}/{id?}");
                //endpoints.MapControllers();
            });
        }
    }
}

最后是我的 appsettings.json：

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    "myDatabase": "Server=server;Database=dbname;User ID=user;Password=***;"
  }
}

标签： c#visual-studioasp.net-coreasp.net-web-api

c# - ASP.NET Core 3.1 Web API 发布方法导致 405“方法不允许”错误

问题描述

解决方案

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