因为用的是ng6，我看网上现在用pipe代替filter了。

目前问题是event.url只会等于dashboard，怎么都拿不到/stock。所以pageTitle一直只会显示Dashboard”。

我的代码

  constructor(public router:Router) { 

   router.events.pipe(filter(

   event=>event instanceof NavigationEnd)).subscribe((event:NavigationEnd)=>{

    if(event.url =='/dashboard'){

    this.pageTitle="This is pageTitle place for Dashboard";

    this.pageDesc="this is pageDesc place Dashboard";

    }else if(event.url.includes("/stock")){

    this.pageTitle="this is title for STOCK";

    this.pageDesc="this is Desc for stock";

    }

   })

  }

下面是menu.component部分的

  menu:Array<Menu>;

  currentId:number;

  constructor(public router:Router) { }

  ngOnInit() {

  this.menus=[

  new Menu(1,'FIRST PAGE','dashboard'),

  new Menu(2,'SECOND Page','stock')

  ];

  }

  nav(menu:Menu){

  this.router.navigateByUrl(menu.link);

  this.currentId=menu.id;

  }

}

第二个问题是接下来在我点击了创建按钮，页面会先跳向/stock/0，然后立马就调回到/dashboard了。我也能看到stockForm.html显示出来了，但立马就跳回dashboard了。

这是path

const routeConfig: Routes=[

  {path:'',redirectTo:'/dashboard',pathMatch:'full'},

  {path:'dashboard',component:DashboardComponent},

  {path:'stock',component:StockManageComponent},

  {path:'stock/:id',component:StockFormComponent}

];