ASP.NET Core，如何检查与正则表达式匹配的请求？-Java 学习之路

我需要检查传入的请求是否与正则表达式匹配 . 如果一致，则使用此路线 . 为此目的约束 . 但我的例子不想工作 . 在声明时，RouteBuilder需要一个Handler . 处理程序拦截所有请求，不会导致约束 .

请告诉我如何正确检查传入的请求与正则表达式匹配？

configure

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
    if (env.IsDevelopment())
    {
        app.UseDeveloperExceptionPage();
        app.UseBrowserLink();
    }
    else
    {
        app.UseExceptionHandler("/Home/Error");
    }

    app.UseStaticFiles();
    app.UseAuthentication();

    var trackPackageRouteHandler = new RouteHandler(Handle);
    var routeBuilder = new RouteBuilder(app);
    routeBuilder.MapRoute(
       name: "old-navigation",
       template: "{*url}",
       defaults: new { controller = "Home", action = "PostPage" },
       constraints: new StaticPageConstraint(),
       dataTokens: new { url = "^.{0,}[0-9]-.{0,}html$" });

    routeBuilder.MapRoute(
       name: "default",
       template: "{controller=Home}/{action=Index}/{id?}");

    app.UseRouter(routeBuilder.Build());

    app.UseMvc();
}

// собственно обработчик маршрута
private async Task Handle(HttpContext context)
{
    await context.Response.WriteAsync("Hello ASP.NET Core!");
}

IRouteConstraint

public class StaticPageConstraint : IRouteConstraint
{
    public bool Match(HttpContext httpContext, IRouter route, string routeKey, RouteValueDictionary values, RouteDirection routeDirection)
    {
        string url = httpContext.Request.Path.Value;
        if(Regex.IsMatch(url, @"^.{0,}[0-9]-.{0,}html$"))
        {
            return true;
        } else
        {
            return false;
        }
        throw new NotImplementedException();
    }
}

1 回答

https://docs.microsoft.com/en-us/aspnet/core/fundamentals/middleware

向下滚动到“MapWhen”部分 - 我相信这将满足您的需求 . 使用此功能，当请求与某些参数匹配时，您可以让应用程序遵循不同的管道 .

app.MapWhen(
            context => ... // <-- Check Regex Pattern against Context
            branch => branch.UseStatusCodePagesWithReExecute("~/Error")
            .UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=SecondController}/{action=Index}/{id?}")
            })
            .UseStaticFiles());

回复于 2024-05-04T10:45:24+08:00

ASP.NET Core，如何检查与正则表达式匹配的请求？

1 回答

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