Angular http客戶端錯誤

這是我的應用程序的一個組件，它可以很好地工作，但它會使this.stylistDetails = data;這一行出現錯誤。可有人建議解決這個問題Angular http客戶端錯誤

import { Component, OnInit } from '@angular/core'; 
    import {ActivatedRoute} from '@angular/router'; 
    import {HttpClient} from '@angular/common/http'; 

    @Component({ 
     selector: 'app-search-results', 
     templateUrl: './search-results.component.html', 
     styleUrls: ['./search-results.component.css'] 
    }) 
    export class SearchResultsComponent implements OnInit { 

     stylistDetails: Stylist[] = []; 
     need; 
     type; 
     showMessage; 
     preferred_locations = []; 

     countResults; 

     // onNotifyClicked(message:string): void{ 
     // this.showMessage = message; 
     // } 

     onClickLocFiltered(): void{ 
     this.http.get('/api/stylist/getStylist/loc').subscribe(
      data => { 
      this.stylistDetails = data; 
      this.countResults = this.stylistDetails.length; 
      } 
     ); 
     } 

     constructor(private route: ActivatedRoute, private http: HttpClient) { 

     this.http.get<Stylist>('/api/stylist/getStylistName').subscribe(
      data => { 
      this.stylistDetails = data; 
      // console.log(this.stylistName); 
      // console.log(this.stylistName.length); 
      this.countResults = this.stylistDetails.length; 
      } 
     ); 


     } 

     ngOnInit() { 
     this.route 
      .queryParams 
      .subscribe(params => { 
      // Defaults to 0 if no query param provided. 
      this.need = params['need'] || 0; 
      this.type = params['type'] || 0; 
      }); 
     } 
    } 

    interface Stylist { 
     name: string; 
     address: string; 
     cost: number; 
     skills: string[]; 
    }

的方式而這正是我的終端顯示

ERROR in src/app/search-results/search-results.component.ts(27,9): error TS2322: Type 'Object' is not assignabl 
e to type 'Stylist[]'. 
    The 'Object' type is assignable to very few other types. Did you mean to use the 'any' type instead? 
src/app/search-results/search-results.component.ts(27,9): error TS2322: Type 'Object' is not assignable to type 
'Stylist[]'. 
    The 'Object' type is assignable to very few other types. Did you mean to use the 'any' type instead? 
    Property 'includes' is missing in type 'Object'. 
src/app/search-results/search-results.component.ts(37,9): error TS2322: Type 'Stylist' is not assignable to typ 
e 'Stylist[]'. 
src/app/search-results/search-results.component.ts(37,9): error TS2322: Type 'Stylist' is not assignable to typ 
e 'Stylist[]'. 
    Property 'includes' is missing in type 'Stylist'.

來源

2017-12-27 Joseph Charles

你舒爾stylistDetails和數據有相同的類型？ –

是的都是相同的類型 –

您的類型需要匹配，當您將數據分配給'Stylist []'時，您正在使用'Stylist'。其次，你並不是說你期待的是哪種類型的響應，而當Angular返回一個對象時，你試圖賦予'Stylist []'。告訴Angular你期待的數據類型'Stylist []'：'this.http.get （'/ api/stylist/getStylist/loc'）'https://angular.io/guide/http#typechecking-the-響應 – Alex

更改您的訂閱方法從構造到這個錯誤：

this.http.get<any>('/api/stylist/getStylistName').subscribe(
    data => { 
    this.stylistDetails = data; 
    // console.log(this.stylistName); 
    // console.log(this.stylistName.length); 
    this.countResults = this.stylistDetails.length; 
    } 
);

來源

2017-12-27 11:55:08

Angular http客戶端錯誤

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