最后贴一下可以正常运行的代码：
using Microsoft.AspNetCore.Authentication.JwtBearer; using Microsoft.AspNetCore.Builder; using Microsoft.AspNetCore.Hosting; using Microsoft.AspNetCore.OData; using Microsoft.AspNetCore.OData.Formatter; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.DependencyInjection; using Microsoft.IdentityModel.Tokens; using Microsoft.Net.Http.Headers; using Microsoft.OData.Edm; using Microsoft.OData.ModelBuilder; using Microsoft.OpenApi.Models; using System.IdentityModel.Tokens.Jwt; using System.IO; using System.Linq; using System.Text; namespace WebApplication2 { 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.AddAuthentication(JwtBearerDefaults.AuthenticationScheme) .AddJwtBearer(options => { options.TokenValidationParameters = new TokenValidationParameters { NameClaimType = JwtRegisteredClaimNames.Sub, ValidateIssuer = true, ValidateAudience = true, ValidateLifetime = true, ValidateIssuerSigningKey = true, ValidIssuer = Configuration["Jwt:Issuer"], ValidAudience = Configuration["Jwt:Audience"], IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(Configuration["Jwt:Key"])) }; //options.Authority = "https://222.31.160.20:5001"; }); services.AddCors(options => { options.AddDefaultPolicy( builder => { builder.AllowAnyOrigin().AllowAnyMethod().AllowAnyHeader(); }); }); services.AddOData(opt => opt.AddModel("api", GetEdmModel()).Expand().Filter().Count().OrderBy().Filter()); services.AddControllers( options => { foreach (var outputFormatter in options.OutputFormatters.OfType<ODataOutputFormatter>().Where(_ => _.SupportedMediaTypes.Count == 0)) { outputFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/odata")); } foreach (var inputFormatter in options.InputFormatters.OfType<ODataInputFormatter>().Where(_ => _.SupportedMediaTypes.Count == 0)) { inputFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/odata")); } }); services.AddSwaggerGen(c => { c.SwaggerDoc("v1", new OpenApiInfo { Title = "WebApplication2", Version = "v1" }); var filePath = Path.Combine(System.AppContext.BaseDirectory, "WebApplication2.xml"); c.IncludeXmlComments(filePath); c.DocInclusionPredicate((name, api) => api.HttpMethod != null); }); } private IEdmModel GetEdmModel() { ODataModelBuilder builder = new ODataModelBuilder(); var configuration = builder.EntitySet<WeatherForecast>("WeatherForecast").EntityType.HasKey(w=>w.TemperatureC); return builder.GetEdmModel(); } // This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (true) { app.UseDeveloperExceptionPage(); app.UseSwagger(); app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "WebApplication2 v1")); } app.UseCors(); app.UseAuthentication(); app.UseRouting(); app.UseAuthorization(); app.UseStaticFiles(); app.UseEndpoints(endpoints => { endpoints.MapControllers(); }); } } }