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我使用nodejs服務器從SQL數據庫中獲取數據。將Json數據從服務器存儲到Angular 2中的數組中
我將存儲在數據環節是環節存在的數組:
getTaches(): Observable<Tache[]> {
return this.http.get(this.tachesUrl)
.map(response => {
this.taches = response.json().data as Tache[];
console.log(this.taches);
})
.catch(this.handleError);
}
當我在控制檯上打印這個環節我得到結果爲:
undefined
當我打印response.json( )我得到我的價值觀:
Object {taches: Array(8)}
所以我刪除。數據,然後再試一次,然後我得到的TEMPL 1號線其他錯誤吃了文件:
ERROR Error: Error trying to diff '[object Object]'. Only arrays and iterables are allowed
,這裏是我的html文件:
<md-toolbar color="primary">
<span>Taches non traitées</span>
</md-toolbar>
<md-card>
<md-list >
<ng-container *ngFor="let tache of this.tacheService.taches " >
<md-list-item *ngIf="tache.stat == 0" (click)="onSelect(tache)" [class.selectionnee]="tache === tacheSelectionnee">{{tache.stat}}+{{tache.id}} + {{tache.name}}
<div *ngIf="tache === tacheSelectionnee">
<button md-icon-button [mdMenuTriggerFor]="menu">
<md-icon>more_vert</md-icon>
</button>
<md-menu #menu="mdMenu">
<button md-menu-item (click)="openDialog(tache)">
<md-icon>edit</md-icon>
<span>Modifier</span>
</button>
<button md-menu-item (click)="delete(tache)">
<md-icon>delete</md-icon>
<span>Supprimer</span>
</button>
<button md-menu-item (click)="save(tache)">
<md-icon>cached</md-icon>
<span>Traiter</span>
</button>
</md-menu>
</div>
</md-list-item>
</ng-container>
</md-list>
</md-card>
我會正確地存儲在陣列環節的數據,這樣我就可以向他們的待辦事項列表。
謝謝你,它的工作! –