我最近从RC4移动到了Angular2 RC5。从那以后,我遇到了一些问题。我不确定这些问题是因为错误还是过渡。我的应用程序组件看起来是这样的:Angular2 rc5>组件没有加载
import {Component, OnInit} from "@angular/core";
import {SetLocationService} from "./auth/set-location.service";
@Component({
selector : "my-app",
template: `
<app-header></app-header>
<router-outlet></router-outlet>
<app-footer></app-footer>
`
})
export class AppComponent implements OnInit{
constructor(
private _setLocationService : SetLocationService
){}
ngOnInit() {
this._setLocationService.setLocation();
}
}
路由:
import {Routes, RouterModule} from '@angular/router';
import {SearchBoxComponent} from "./search/searchBox.component";
import {SearchResultComponent} from "./search/search-result.component";
import {LoginComponent} from "./auth/login.component";
import {SignupComponent} from "./auth/signup.component";
import {LogoutComponent} from "./auth/logout.component";
import {RecoverPasswordComponent} from "./auth/recover-password.component";
import {ProfileComponent} from "./auth/profile.component"
import {AccountComponent} from "./auth/account.component"
const appRoutes: Routes = [
{path : '', component: SearchBoxComponent},
{path : 'login', component: LoginComponent},
{path : 'signup', component: SignupComponent},
{path : 'logout', component: LogoutComponent},
{path : 'profile', component: ProfileComponent},
{path : 'account', component: AccountComponent},
{path : 'user/:uname', component: SearchBoxComponent},
{path : 'recover-password', component: RecoverPasswordComponent},
{path : 'search/:params', component: SearchResultComponent},
{path : '**', component : SearchBoxComponent}
];
export const routing = RouterModule.forRoot(appRoutes);
应用模块:
// @Modules -> Modules
import {BrowserModule} from '@angular/platform-browser';
import {FormsModule} from '@angular/forms';
import {HttpModule} from '@angular/http';
import {LocationStrategy, HashLocationStrategy} from '@angular/common';
import {NgModule} from '@angular/core';
// import {RouterModule} from '@angular/router';
// @Routes -> routes
import {routing} from "./app.routes";
// @Components - > Components
import {AccountComponent} from "./auth/account.component";
import {AppComponent} from './app.component';
import {ChatBoxComponent} from "./chat/chat-box.component";
import {ChatBoxDirective} from "./chat/chat-box.directive";
import {FooterComponent} from "./layout/footer.component";
import {HeaderComponent} from "./layout/header.component";
import {LoginComponent} from "./auth/login.component";
import {LogoutComponent} from "./auth/logout.component";
import {ProfileComponent} from "./auth/profile.component";
import {RecoverPasswordComponent} from "./auth/recover-password.component";
import {SearchBoxComponent} from "./search/searchBox.component";
import {SearchResultComponent} from "./search/search-result.component";
import {SignupComponent} from "./auth/signup.component";
// @providers - > services
import {AuthService} from "./auth/auth.service";
import {SetLocationService} from "./auth/set-location.service";
import {SearchService} from "./search/search.service";
@NgModule({
imports: [
BrowserModule,
FormsModule,
HttpModule,
routing
],
declarations: [
AccountComponent,
AppComponent,
ChatBoxComponent,
ChatBoxDirective,
FooterComponent,
HeaderComponent,
LoginComponent,
LogoutComponent,
ProfileComponent,
RecoverPasswordComponent,
SearchBoxComponent,
SearchResultComponent,
SignupComponent
],
providers : [
AuthService,
SetLocationService,
SearchService,
{provide: LocationStrategy, useClass: HashLocationStrategy}
],
bootstrap: [
AppComponent,
HeaderComponent,
FooterComponent
]
})
export class AppModule {}
我的第一个问题是,如果我不加1.HeaderComponent,2.FooterComponent在app.module的引导程序,它们中的任何一个(1.HeaderComponent,2.FooterComponent)都会在根路由处于活动状态时(localhost:3000)加载,但SearchBoxComponent会加载。我有点困惑,因为我在官方文档中没有看到在引导程序中添加多个组件。
我的第二个问题与第一个问题几乎相同。如果我将组件(seachBoxConmponent)嵌入到另一个组件(如下面的代码)中,则seachBoxConmponent组件不会加载,而是会加载其他组件。
@Component({
selector: "search-result",
template : `
<seachBox></searchBox>
<div class="tag_list">
<p *ngFor = "let tag of result.obj.tags" class = "tag-li" >
<a [routerLink] = "['/search', tag]" (click) = "onSearchCliked($event, tag)"> {{tag}} </a>
</p>
</div>
`
})
我想知道,任何人都可以请帮我,我一直在这个问题上过去几天,我仍坚持在这里。
如果你在ngModule声明中没有添加所有的组件,你会得到这个警告=>:“NgModule e使用e通过”entryComponents“,但它既没有声明也没有导入!这个警告在final之后会变成错误。 3xoolooloo.js:1 Angular 2正在开发模式下运行,调用enableProdMode()以启用生产模式。“ –