ERROR 错误：StaticInjectorError(AppModule)[StorieControllerComponent -> DataService]：

Posted 2023-03-05

【中文标题】ERROR 错误：StaticInjectorError(AppModule)[StorieControllerComponent -> DataService]：

【英文标题】：ERROR Error: StaticInjectorError(AppModule)[StorieControllerComponent -> DataService]:

【发布时间】：2018-08-18 06:10:32

【问题描述】：

我收到了这个错误，我已经检查了所有的导入和模块。

我正在尝试访问我的项目中的 JSON 文件并在对象中使用该数据，但我不确定这里有什么问题。我用JSON 很好地定义了我的对象，但我不确定问题出在 Http 上

这是我在控制台中遇到的错误：

这是服务

import  storiesStatus  from './stories';
import  Injectable  from '@angular/core';
import  NgModule  from '@angular/core';
import  HttpClientModule  from '@angular/common/http';
import  Headers, Http, Response, HttpModule from '@angular/http';

const storiesJson = './../json/stories_data_json.json';

@Injectable()
export class DataService 

constructor(private http: Http)  

getStoriesData(): Promise<storiesStatus[]> 
return this.http.get(storiesJson)
  .toPromise()
  .then(response => response.json() as storiesStatus[])
  .catch();
 

这是我的应用模块：

import  BrowserModule  from '@angular/platform-browser';
import  NgModule  from '@angular/core';
import * as Hammer from 'hammerjs';
import 'hammer-timejs';
import  HammerGestureConfig, HAMMER_GESTURE_CONFIG  from 
'@angular/platform-browser';
import  Router, NavigationEnd, ActivatedRoute  from '@angular/router';
import  ChartsModule  from 'ng2-charts';

import  AppComponent  from './app.component';
import  AppChildModule  from './modules/app-child.module';
import  CheckinComponent  from 
'./modules/controllers/checkin/checkin.component';
import  PicturePostComponent  from './modules/controllers/picture-
post/picture-post.component';
import  StorieControllerComponent  from './modules/controllers/storie-
controller/storie-controller.component';
import  LoginComponent  from './modules/screens/login/login.component';
import  router  from './modules/routing/app-routing.module';
import  FeedComponent  from './modules/screens/home/feed/feed.component';
import  HomeComponent  from './modules/screens/home/home.component';
import  WelcomeComponent  from 
'./modules/screens/welcome/welcome.component';
import  SignupComponent  from './modules/screens/signup/signup.component';
import  HttpClientModule  from '@angular/common/http';
import  HttpModule  from '@angular/http';
import  BrowserAnimationsModule  from '@angular/platform-
browser/animations';

export class MyHammerConfig extends HammerGestureConfig  
overrides = <any>
   'swipe':  direction: Hammer.DIRECTION_ALL 
 
 

@NgModule(
 declarations: [
  AppComponent,
  LoginComponent,
  HomeComponent,
  WelcomeComponent,
  SignupComponent
 ],
  imports: [
   BrowserModule,
   HttpClientModule,
   HttpModule,
   AppChildModule,
   ChartsModule,
   BrowserAnimationsModule,
    router
  ],
 providers: [
   provide: HAMMER_GESTURE_CONFIG,
   useClass: MyHammerConfig
  ],
  bootstrap: [AppComponent]
  )
   export class AppModule  

这是我连接到服务的组件：

 import  DataService  from '../../../../assets/services/data.service';
 import  storiesStatus  from '../../../../assets/services/stories';
 import  Component, OnInit  from '@angular/core';
 import  NgModule  from '@angular/core';
 import  Headers, Http, Response, HttpModule from '@angular/http';


 @Component(
   selector: 'app-storie-controller',
    templateUrl: './storie-controller.component.html',
    styleUrls: ['./storie-controller.component.css']
    )
    @NgModule(
     declarations: []
     )

   export class StorieControllerComponent implements OnInit 
      public stories: storiesStatus[];

      constructor(private data: DataService)  
      this.stories = [];
     

   ngOnInit() 
        this.data.getStoriesData().then(storiesRes => console.log( 
        this.stories = storiesRes));
      

     

【问题讨论】：

您需要将 DataService 添加到您的 app.module 的 providers 数组中。

【参考方案1】：

在您的 app.module 中，您忘记将 DataService 添加到您的提供程序数组中

【讨论】：

我试过了但是我得到这个错误：未捕获的错误：模块“AppModule”导入的意外值“DataService”。请添加@NgModule 注释。

更新你的应用模块来展示你是怎么做的，你必须确保你只输入providers: [DataService]

您还需要导入它，目前不需要。

哦，我在供应商上少了一个逗号，好吧哈哈哈谢谢！！