我试图在angular 2中加载一个带有http.get()
的本地json.我试过一些东西,我在stack上找到的.看起来是这样的:
this is my app.module.ts
where I import
the HttpModule
and the JsonModule
from @angular/http
:
import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { FormsModule } from '@angular/forms';
import { HttpModule, JsonpModule } from '@angular/http';
import { RouterModule, Routes } from '@angular/router';
import { AppComponent } from './app.component';
import { NavCompComponent } from './nav-comp/nav-comp.component';
import { NavItemCompComponent } from './nav-comp/nav-item-comp/nav-item-comp.component';
@NgModule({
declarations: [
AppComponent,
NavCompComponent,
NavItemCompComponent
],
imports: [
BrowserModule,
FormsModule,
HttpModule,
JsonpModule,
RouterModule.forRoot(appRoutes)
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
在我的component中,我从@angular/http
中 Select 了import
Http
和Response
.然后我有一个名为loadNavItems()
的函数,在这里,我try 使用http.get()
加载带有相对路径的json,并使用console.log()
打印结果.该函数在ngOnInit()
中调用:
import { Component, OnInit } from '@angular/core';
import { Http, Response } from '@angular/http';
@Component({
selector: 'app-nav-comp',
templateUrl: './nav-comp.component.html',
styleUrls: ['./nav-comp.component.scss']
})
export class NavCompComponent implements OnInit {
navItems: any;
constructor(private http: Http) { }
ngOnInit() {
this.loadNavItems();
}
loadNavItems() {
this.navItems = this.http.get("../data/navItems.json");
console.log(this.navItems);
}
}
我的local json file看起来是这样的:
[{
"id": 1,
"name": "Home",
"routerLink": "/home-comp"
},
{
"id": 2,
"name": "Über uns",
"routerLink": "/about-us-comp"
},
{
"id": 3,
"name": "Events",
"routerLink": "/events-comp"
},
{
"id": 4,
"name": "Galerie",
"routerLink": "/galery-comp"
},
{
"id": 5,
"name": "Sponsoren",
"routerLink": "/sponsoring-comp"
},
{
"id": 6,
"name": "Kontakt",
"routerLink": "/contact-comp"
}
]
There are no errors in the console, I just get this output:
在my html template中,我想循环如下项目:
<app-nav-item-comp *ngFor="let item of navItems" [item]="item"></app-nav-item-comp>
I made this with a solution I found here on stack, but I have no idea why it doesn't work?
EDIT RELATIVE PATH: