.Net Core 添加 Swagger 支持

1. NuGet 中添加 Swashbuckle.AspNetCore

2.添加 Startup 信息

将 Swagger 生成器添加到 Startup.ConfigureServices 方法中的服务集合中：

//注册Swagger生成器，定义一个和多个Swagger 文档

services.AddSwaggerGen(c =>

{

     c.SwaggerDoc("v1", new Info { Title = "My API", Version = "v1" });

});

在 Startup.Configure 方法中，启用中间件为生成的 JSON 文档和 Swagger UI 提供服务：

//启用中间件服务生成Swagger作为JSON终结点

app.UseSwagger();

//启用中间件服务对swagger-ui，指定Swagger JSON终结点

app.UseSwaggerUI(c =>

{

    c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");

});

3.调试默认页

4.xml 注释信息 1591 忽略注释警告，xml 在bin 目录下，xml名与项目名相同。

5.添加特定参数，（query header body path formData）各个报文都可以配，功能强大。

　新建 class 实现配置类 IOperationFilter

public class SwaggerHeaderOperation : IOperationFilter
    {
        /// <summary>
        ///
        /// </summary>
        /// <param name="operation"></param>
        /// <param name="context"></param>
        public void Apply(Operation operation, OperationFilterContext context)
        {
            if (operation.Parameters == null) operation.Parameters = new List<IParameter>();
            var attrs = context.ApiDescription.ActionDescriptor.AttributeRouteInfo;

//先判断是否是匿名访问,
            var descriptor = context.ApiDescription.ActionDescriptor as ControllerActionDescriptor;
            if (descriptor != null)
            {
                var actionAttributes = descriptor.MethodInfo.GetCustomAttributes(inherit: true);
                bool isAnonymous = actionAttributes.Any(a => a is AllowAnonymousAttribute);
                //非匿名的方法,链接中添加accesstoken值
                if (!isAnonymous)
                {
                    operation.Parameters.Add(new NonBodyParameter()
                    {
                        Name = "accesstoken",
                        In = "header",//query header body path formData
                        Type = "string",
                        Required = false //是否必选
                    });
                }
            }
        }

    }

　　在中添加 IServiceCollection.OperationFilter<SwaggerHeaderOperation>();

Startup 最终配置:

public void ConfigureServices(IServiceCollection services)
        {

            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
            //全局配置Json序列化处理
            services.AddMvc()
                .AddJsonOptions(options =>
                {
                    //忽略循环引用
                    options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
                    //不使用驼峰样式的key
                    //options.SerializerSettings.ContractResolver = new LowercaseContractResolver();
                    //设置时间格式
                    options.SerializerSettings.DateFormatString = "yyyy-MM-dd";
                }
           );

services.AddSwaggerGen(c =>
            { // 为 Swagger JSON and UI设置xml文档注释路径
                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, "AsnycCoreAPI.xml");
                c.IncludeXmlComments(xmlPath);
                c.SwaggerDoc("v1", new Info { Title = "My API", Version = "v1" });
                c.OperationFilter<SwaggerHeaderOperation>();
            });

}

// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }
            else
            {
                app.UseHsts();
            }
            app.UseHttpsRedirection();
            app.UseMvc();

//启用中间件服务生成Swagger作为JSON终结点
            app.UseSwagger();
            //启用中间件服务对swagger-ui，指定Swagger JSON终结点
            app.UseSwaggerUI(c =>
            {
                c.SwaggerEndpoint("/swagger/v1/swagger.json", "My API V1");
            });

}

最后祝大家国庆节愉快。

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.Net Core 添加 Swagger 支持

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