一、報下面的錯誤

{StatusCode: 401, ReasonPhrase: 'Unauthorized', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Transfer-Encoding: chunked
  Date: Tue, 15 Sep 2020 09:35:01 GMT
  Server: Microsoft-IIS/10.0
  WWW-Authenticate: Bearer
  X-Powered-By: ASP.NET
}}

解決方法：

1：漏掉了下面這一行

        public void
 
 Configure(IApplicationBuilder app, IWebHostEnvironment env, IHostApplicationLifetime appLifetime)
        {
            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            
 
app.UseAuthentication();
            //添加了授權中介軟體，以確保匿名客戶端無法訪問我們的API端點。
            app.UseAuthorization();
            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
            //程式停止呼叫函式
            appLifetime.ApplicationStopped.Register(() => { AutofacContainer.Dispose(); });
        }
 

2、這兩行順序弄反了

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IHostApplicationLifetime appLifetime)
        {
            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            app.UseAuthorization();//這順序是錯誤的
            app.UseAuthentication();//這順序是錯誤的
            //添加了授權中介軟體，以確保匿名客戶端無法訪問我們的API端點。

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
            //程式停止呼叫函式
            appLifetime.ApplicationStopped.Register(() => { AutofacContainer.Dispose(); });
        }

二、報下面的錯誤

{StatusCode: 500, ReasonPhrase: 'Internal Server Error', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
  Transfer-Encoding: chunked
  Date: Tue, 15 Sep 2020 09:40:00 GMT
  Server: Microsoft-IIS/10.0
  X-Powered-By: ASP.NET
  Content-Type: text/plain
}}

解決方法如下：

漏掉了下面這一行

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IHostApplicationLifetime appLifetime)
        {
            System.Text.Encoding.RegisterProvider(System.Text.CodePagesEncodingProvider.Instance);
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();
            app.UseAuthentication();
            //添加了授權中介軟體，以確保匿名客戶端無法訪問我們的API端點。
            app.UseAuthorization();
            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
            //程式停止呼叫函式
            appLifetime.ApplicationStopped.Register(() => { AutofacContainer.Dispose(); });
        }