如何在 Angular2 中使用 :id 参数创建子路由

Question

我有以下路线配置，该路线正常工作：

export const routeConfig: Routes = [
    {path: '', redirectTo: 'use-cases', pathMatch: 'full'},
    {path: 'use-cases', component: UseCasesComponent},
    {path: 'add', component: AddComponent},
    {path: '**', redirectTo: 'use-cases'},
];

如何添加路线use-cases/:id？

我已经尝试过这个：

{path: 'use-cases', component: UseCasesComponent,
    children: [
        {
            path: '/:id',
            component: UseCaseComponent,
        }
    ]
},

但这给了我错误

异常：未捕获（承诺）：[object Object]

Error: Uncaught (in promise): [object Object]
    at resolvePromise (http://localhost:3000/polyfills.bundle.js:15073:32)
    at http://localhost:3000/polyfills.bundle.js:15050:14
    at ZoneDelegate.invoke (http://localhost:3000/polyfills.bundle.js:14837:27)
    at Object.onInvoke (http://localhost:3000/vendor.bundle.js:7133:42)
    at ZoneDelegate.invoke (http://localhost:3000/polyfills.bundle.js:14836:33)
    at Zone.run (http://localhost:3000/polyfills.bundle.js:14719:44)
    at http://localhost:3000/polyfills.bundle.js:15107:58
    at ZoneDelegate.invokeTask (http://localhost:3000/polyfills.bundle.js:14870:36)

Answer 1

不要添加前导斜杠path: '...'

 path: '/:id'

应该

 path: ':id'