WebApi结合Swagger ui 实现在线接口文档

基于Swagger 实现 webapi 自动生成在线测试文档

Step1 添加NuGet包 Swashbuckle

step2 修改SwaggerConfig.cs

Swasshbuckle 安装完成之后会在App_Start下创建一个名为SwaggerConfig.cs的类，把内容替换为：

using System.Web.Http;
using WebActivatorEx;
using SqlSugar.WebApi;
using Swashbuckle.Application;
using WebApi;

[assembly: PreApplicationStartMethod(typeof(SwaggerConfig), "Register")]

namespace SqlSugar.WebApi
{
    /// <summary>
    /// SwaggerConfig
    /// </summary>
    public class SwaggerConfig
    {
        /// <summary>
        /// Register
        /// </summary>
        public static void Register()
        {
            var thisAssembly = typeof(SwaggerConfig).Assembly;

            GlobalConfiguration.Configuration
                .EnableSwagger(c =>
                    {
                        c.SingleApiVersion("v1", "SqlSugar.WebApi");
                        c.IncludeXmlComments(GetXmlCommentsPath());
                        c.OperationFilter<HttpHeaderFilter>(); 
                    })
                .EnableSwaggerUi(c =>
                    {
                        // Use the "InjectStylesheet" option to enrich the UI with one or more additional CSS stylesheets.
                        // The file must be included in your project as an "Embedded Resource", and then the resource's
                        // "Logical Name" is passed to the method as shown below.
                        //
                        //c.InjectStylesheet(containingAssembly, "Swashbuckle.Dummy.SwaggerExtensions.testStyles1.css");

                        // Use the "InjectJavaScript" option to invoke one or more custom JavaScripts after the swagger-ui
                        // has loaded. The file must be included in your project as an "Embedded Resource", and then the resource's
                        // "Logical Name" is passed to the method as shown above.
                        //
                        //c.InjectJavaScript(thisAssembly, "Swashbuckle.Dummy.SwaggerExtensions.testScript1.js");

                        // The swagger-ui renders boolean data types as a dropdown. By default, it provides "true" and "false"
                        // strings as the possible choices. You can use this option to change these to something else,
                        // for example 0 and 1.
                        //
                        //c.BooleanValues(new[] { "0", "1" });

                        // By default, swagger-ui will validate specs against swagger.io's online validator and display the result
                        // in a badge at the bottom of the page. Use these options to set a different validator URL or to disable the
                        // feature entirely.
                        //c.SetValidatorUrl("http://localhost/validator");
                        //c.DisableValidator();

                        // Use this option to control how the Operation listing is displayed.
                        // It can be set to "None" (default), "List" (shows operations for each resource),
                        // or "Full" (fully expanded: shows operations and their details).
                        //
                        //c.DocExpansion(DocExpansion.List);

                        // Use the CustomAsset option to provide your own version of assets used in the swagger-ui.
                        // It's typically used to instruct Swashbuckle to return your version instead of the default
                        // when a request is made for "index.html". As with all custom content, the file must be included
                        // in your project as an "Embedded Resource", and then the resource's "Logical Name" is passed to
                        // the method as shown below.
                        //
                        //c.CustomAsset("index", containingAssembly, "YourWebApiProject.SwaggerExtensions.index.html");

                        // If your API has multiple versions and you've applied the MultipleApiVersions setting
                        // as described above, you can also enable a select box in the swagger-ui, that displays
                        // a discovery URL for each version. This provides a convenient way for users to browse documentation
                        // for different API versions.
                        //
                        //c.EnableDiscoveryUrlSelector();

                        // If your API supports the OAuth2 Implicit flow, and you've described it correctly, according to
                        // the Swagger 2.0 specification, you can enable UI support as shown below.
                        //
                        //c.EnableOAuth2Support("test-client-id", "test-realm", "Swagger UI");
                    });
        }

        private static string GetXmlCommentsPath()
        {
            return System.String.Format(@"{0}/App_Data/SqlSugar.WebApi.XML", System.AppDomain.CurrentDomain.BaseDirectory);
        }
    }
}

Step3 创建生成XML

右键你的项目→属性→生成→选中下方的 "XML文档文件" 然后保存

step4 启动你的项目

访问地址为：http://localhost:58192/swagger/

扩展：在Swagger中实现自定义 HTTP Header

在开发移动端 API时常常需要验证权限，验证参数放在Http请求头中是再好不过了。WebAPI配合过滤器验证权限即可

首先我们需要创建一个 IOperationFilter 接口的类。IOperationFilter：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Http.Description;
using System.Web.Http.Filters;
using Swashbuckle.Swagger;
namespace WebApi
{
    public class HttpHeaderFilter : IOperationFilter
    {
        public void Apply(Operation operation, SchemaRegistry schemaRegistry, ApiDescription apiDescription)

        {
            if (operation.parameters == null)
                operation.parameters = new List<Parameter>();
            var filterPipeline = apiDescription.ActionDescriptor.GetFilterPipeline(); //判断是否添加权限过滤器
            var isAuthorized = filterPipeline.Select(filterInfo => filterInfo.Instance).Any(filter => filter is IAuthorizationFilter); //判断是否允许匿名方法 
            var allowAnonymous = apiDescription.ActionDescriptor.GetCustomAttributes<AllowAnonymousAttribute>().Any();
            if (isAuthorized && !allowAnonymous)
            {
                operation.parameters.Add(new Parameter { name = "Authorization", @in = "header", description = "Token", required = false, type = "string" });
            }
        }
    }
}

在 SwaggerConfig.cs 的 EnableSwagger 配置匿名方法类添加一行注册代码

c.OperationFilter();