例外:状态为404的URL/Angular2找不到响应 [英] EXCEPTION: Response with status: 404 Not Found for URL / Angular2

问题描述

我正在尝试在服务中获得http响应:

I am trying to get an http response in my service:

import { Injectable } from '@angular/core';
import { Http, Response } from '@angular/http';

import 'rxjs/add/operator/map';

@Injectable()
export class CartService {
    constructor(private http: Http){ }

getCartItems() {
    return this.http.get('./cart/cart.json')
    .map(
        (res) => res.json()
      );
  }
}

但是控制台显示EXCEPTION:状态为:404找不到URL的响应

But console shows EXCEPTION: Response with status: 404 Not Found for URL

我的文件树( cart.json 文件位于 cart 文件夹根目录中):

My file tree (the cart.json file is in the cart folder root):

发现了类似的问题，但没有答案对我有用.

Found similar questions, but no answer worked to me.

UPD 将 cart.json 文件移到 public 文件夹并将路径更改为缩短的路径即可解决该问题.

UPD Moving the cart.json file into public folder and changing path to a shortened one solved the problem.

return this.http.get('../cart.json')

推荐答案

您正在尝试从PATH而不是URL要求某些内容.您需要使其在公共文件夹中可访问.

You're trying to require something from a PATH, rather then a URL. You need to make it accessible in your public folder.

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