NetCoreAPI配置全局路由

1：新增类：RouteConvention，继承自IApplicationModelConvention

 /// <summary>
    /// 全局路由前缀配置
    /// </summary>
    public class RouteConvention : IApplicationModelConvention
    {
        /// <summary>
        /// 定义一个路由前缀变量
        /// </summary>
        private readonly AttributeRouteModel _centralPrefix;
        /// <summary>
        /// 调用时传入指定的路由前缀
        /// </summary>
        /// <param name="routeTemplateProvider"></param>
        public RouteConvention(IRouteTemplateProvider routeTemplateProvider)
        {
            _centralPrefix = new AttributeRouteModel(routeTemplateProvider);
        }

        //接口的Apply方法
        public void Apply(ApplicationModel application)
        {
            //遍历所有的 Controller
            foreach (var controller in application.Controllers)
            {
                // 1、已经标记了 RouteAttribute 的 Controller　　　　　　　　  
                //这一块需要注意，如果在控制器中已经标注有路由了，则会在路由的前面再添加指定的路由内容。
                var matchedSelectors = controller.Selectors.Where(x => x.AttributeRouteModel != null).ToList();
                if (matchedSelectors.Any())
                {
                    foreach (var selectorModel in matchedSelectors)
                    {
                        // 在 当前路由上 再 添加一个 路由前缀
                        selectorModel.AttributeRouteModel = AttributeRouteModel.CombineAttributeRouteModel(_centralPrefix,
                            selectorModel.AttributeRouteModel);
                        //Console.WriteLine("1:" + selectorModel.AttributeRouteModel.Template);
                    }
                }

                //2、 没有标记 RouteAttribute 的 Controller
                var unmatchedSelectors = controller.Selectors.Where(x => x.AttributeRouteModel == null).ToList();
                if (unmatchedSelectors.Any())
                {
                    foreach (var selectorModel in unmatchedSelectors)
                    {
                        // 添加一个 路由前缀
                        selectorModel.AttributeRouteModel = _centralPrefix;
                        //Console.WriteLine("2:" + selectorModel.AttributeRouteModel.Template);
                    }
                }
            }
        }
    }

　　2：新增扩展类/方法：MvcOptionsExtensions/UseCentralRoutePrefix

public static class MvcOptionsExtensions
    {
        /// <summary>
        /// 扩展方法
        /// </summary>
        /// <param name="opts"></param>
        /// <param name="routeAttribute"></param>
        public static void UseCentralRoutePrefix(this MvcOptions opts, IRouteTemplateProvider routeAttribute)
        {
            // 添加我们自定义 实现IApplicationModelConvention的RouteConvention
            opts.Conventions.Insert(0, new RouteConvention(routeAttribute));
        }
    }

3:在StartUp.cs里面引用

 services.AddMvc(opt =>
            {
                //opt.UseCentralRoutePrefix(new RouteAttribute("lg/v1/[action]"));
                //可以随意配置

                opt.UseCentralRoutePrefix(new RouteAttribute("api/[controller]"));
            });

至此搞定：原文地址:https://www.cnblogs.com/guolianyu/p/9680899.html