NuGet添加Swashbuckle.AspNetCore,在Startup.cs添加和启用中间件Swagger
public void ConfigureServices(IServiceCollection services) { #region Swagger services.AddSwaggerGen(c => { c.SwaggerDoc("v1", new Info { Version = "v1.0.0", Title = "My Web API", Description = "说明文档", TermsOfService = "None", Contact = new Swashbuckle.AspNetCore.Swagger.Contact { Name = "My.Web", Email = "My.Web@xxx.com", Url = "https://www.cnblogs.com/Zev_Fung/" } }); }); #endregion } public void Configure(IApplicationBuilder app, IHostingEnvironment env) { #region Swagger app.UseSwagger(); app.UseSwaggerUI(c => { c.SwaggerEndpoint("/swagger/v1/swagger.json", "My Web API V1"); }); #endregion }
使用自带的Kestrel web调试,输入地址:http://localhost:<port>/swagger,默认跳转到https://localhost:<port>/swagger/index.html
Swagger提示报错:
Failed to load API definition. Errors Fetch errorInternal Server Error /swagger/v1/swagger.json
打开http://localhost:<port>/swagger/v1/swagger.json,提示错误
An unhandled exception occurred while processing the request. NotSupportedException: Ambiguous HTTP method for action - xxxxx.Controllers.BooksController.Post (xxxxx). Actions require an explicit HttpMethod binding for Swagger 2.0 Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItem(IEnumerable<ApiDescription> apiDescriptions, ISchemaRegistry schemaRegistry) Stack Query Cookies Headers NotSupportedException: Ambiguous HTTP method for action - xxxxx.Controllers.BooksController.Post (xxxxx). Actions require an explicit HttpMethod binding for Swagger 2.0 Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItem(IEnumerable<ApiDescription> apiDescriptions, ISchemaRegistry schemaRegistry) System.Linq.Enumerable.ToDictionary<TSource, TKey, TElement>(IEnumerable<TSource> source, Func<TSource, TKey> keySelector, Func<TSource, TElement> elementSelector, IEqualityComparer<TKey> comparer) Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.CreatePathItems(IEnumerable<ApiDescription> apiDescriptions, ISchemaRegistry schemaRegistry) Swashbuckle.AspNetCore.SwaggerGen.SwaggerGenerator.GetSwagger(string documentName, string host, string basePath, string[] schemes) Swashbuckle.AspNetCore.Swagger.SwaggerMiddleware.Invoke(HttpContext httpContext, ISwaggerProvider swaggerProvider) Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext context) Show raw exception details
或者在控制台查看输出错误
大概意思是:不支持的异常:操作的HTTP方法不明确,方法需要必须指明请求方式
在方法加上 [HttpGet]、[HttpPost] 等,就可以通过 Swagger UI 查看 API