Net core跨域

注册信息        

        public void ConfigureServices(IServiceCollection services)

        {

            services.AddCors(options => options.AddPolicy("AllowCors", builder => builder.AllowAnyOrigin().AllowAnyMethod()));
   

        }

添加管道

注：

        1.app.UseCors("AllowCors") 必须要在aap.UseRouting之后

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {

            app.UseRouting();

            app.UseCors("AllowCors");
        }

控制器加标签

        [EnableCors("AllowCors")]

        public class MyCoreController : ControllerBase
        {
        }