// 在WebApiConfig.cs或RouteConfig.cs中
public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    
    // 其他API路由配置
    
    // 通配路由 - 必须放在最后
    routes.MapRoute(
        name: "SPA-Fallback",
        url: "{*url}",
        defaults: new { controller = "Home", action = "Index" }
    );
}

<system.webServer>
  <rewrite>
    <rules>
      <rule name="AngularJS Routes" stopProcessing="true">
        <match url=".*" />
        <conditions logicalGrouping="MatchAll">
          <add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
          <add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
        </conditions>
        <action type="Rewrite" url="/" />
      </rule>
    </rules>
  </rewrite>
</system.webServer>

angular.module('myApp', [])
  .config(['$locationProvider', function($locationProvider) {
    $locationProvider.html5Mode({
      enabled: true,
      requireBase: true
    });
  }]);

<base href="/">

app.UseStaticFiles();
app.UseSpaStaticFiles();

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

app.UseSpa(spa =>
{
    spa.Options.SourcePath = "ClientApp";
    
    if (env.IsDevelopment())
    {
        spa.UseAngularCliServer(npmScript: "start");
    }
});