NetCore3.1 如何添加带有JWT Token 验证的Swagger

十年河东，十年河西，莫欺少年穷

学无止境，精益求精

大致分如下几步

1、安装Swagger包

Install-Package Swashbuckle.AspNetCore -Version 5.0.0

2、安装Swashbuckle.AspNetCore.Filters包 版本5.12

Install-Package Swashbuckle.AspNetCore.Filters -Version 5.1.2

3、修改启动类代码如下：

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using log4net;
using log4net.Config;
using log4net.Repository;
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.OpenApi.Models;
using Swashbuckle.AspNetCore.Filters;

namespace LeyxStaffApi
{
    public class Startup
    {
        public static ILoggerRepository repository { get; set; }
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
            // 指定配置文件
            repository = LogManager.CreateRepository("NETCoreRepository");
            XmlConfigurator.Configure(repository, new FileInfo("Log4Net.config"));
            //注册Swagger

        }

        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();
            #region 注册Swagger服务
            // 注册Swagger服务
            services.AddSwaggerGen(c =>
            {
                // 添加文档信息
                c.SwaggerDoc("v1", new OpenApiInfo { Title = "学生端相关接口", Version = "V1" });
                //c.SwaggerDoc("demo", new OpenApiInfo { Title = "示例接口", Version = "demo" });
                c.DocInclusionPredicate((docName, apiDesc) => apiDesc.GroupName == docName.ToUpper());
                var basePath = Path.GetDirectoryName(typeof(Program).Assembly.Location);//获取应用程序所在目录（绝对，不受工作目录影响，建议采用此方法获取路径）
                var xmlPath = Path.Combine(basePath, "LeyxStaffApi.xml");
                c.IncludeXmlComments(xmlPath);
                #region Jwt
                //开启权限小锁
                c.OperationFilter<AddResponseHeadersFilter>();
                c.OperationFilter<AppendAuthorizeToSummaryOperationFilter>();

                //在header中添加token，传递到后台
                c.OperationFilter<SecurityRequirementsOperationFilter>();
                c.AddSecurityDefinition("oauth2", new OpenApiSecurityScheme
                {
                    Description = "JWT授权(数据将在请求头中进行传递)直接在下面框中输入Bearer {token}(注意两者之间是一个空格) \"",
                    Name = "Authorization",//jwt默认的参数名称
                    In = ParameterLocation.Header,//jwt默认存放Authorization信息的位置(请求头中)
                    Type = SecuritySchemeType.ApiKey
                });


                #endregion
            });
            #endregion
        }

        // 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();
            }

            //允许跨域
            app.UseCors(builder => builder.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod());
            // 启用Swagger中间件
            app.UseSwagger(c => c.RouteTemplate = "swagger/{documentName}/swagger.json");
            // 配置SwaggerUI
            app.UseSwaggerUI(c =>
            {
                //c.SwaggerEndpoint($"/swagger/demo/swagger.json", "demo");
                c.SwaggerEndpoint($"/swagger/v1/swagger.json", "V1");
            });

            app.UseHttpsRedirection();

            app.UseRouting();

            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}

4、添加你的控制器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace LeyxStaffApi.Controllers
{
    [Route("Api/V1/Manager")]
    [ApiExplorerSettings(GroupName = "V1")]
    public class ManagerController : ControllerBase
    {
        [HttpPost]
        [Authorize]
        [Route("GetSchoolInfo")]
        public IActionResult GetSchoolInfo()
        {
            return Ok();
        }
    }
}

5、修改Swagger输出文件，请参考启动类中的XML名称，如下：

 

 右键您的项目，选择：‘生成’

 

 然后设置为：

 

 6、设置启动项，如下：

 

 找到这个Json文件，修改如下：

  "profiles": {
    "IIS Express": {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "launchUrl": "swagger/index.html",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }

 

 

 这样，您的Swagger就会有授权的小图标了。如下效果：

 

 这样就完成了，如果您觉得不错，就点个赞吧。

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