从公共文件夹中获取（）本地 json 文件返回 HTML 文件

Question

我的文件夹如下：

公共 > myJson.json
src > App.js 和 MyComponent.js

应用程序.js

import React from "react";
import MyComponent from "./mycomponent";

const App: React.FC = () => {

  fetch("public/myJson.json")
      .then(res => res.json())
      .then(data => console.log(data));

  return <MyComponent>;
};

export default App;

MyJson.json

[
  {
    "a": "a",
    "b": "b"
  },
  {
    "a": "aa",
    "b": "bb"
  }
]

控制台错误（with.json()）：

localhost/:1 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0

到目前为止我尝试过的：

使用标题获取

headers: {
        Accept: 'application/json',
        'Content-Type': 'application/json',
      },

获取（“../public/myJson.json”）
常量响应 = 等待 fetch()

Answer 1

with.text():

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8" />
    <link rel="icon" href="/favicon.ico" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="theme-color" content="#000000" />
    <meta
      name="description"
      content="Web site created using create-react-app"
    />
    <link rel="apple-touch-icon" href="/logo192.png" />
    <!--
      manifest.json provides metadata used when your web app is installed on a
      user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
    -->
    <link rel="manifest" href="/manifest.json" />
    <!--
      Notice the use of  in the tags above.
      It will be replaced with the URL of the `public` folder during the build.
      Only files inside the `public` folder can be referenced from the HTML.

      Unlike "/favicon.ico" or "favicon.ico", "/favicon.ico" will
      work correctly both with client-side routing and a non-root public URL.
      Learn how to configure a non-root public URL by running `npm run build`.
    -->
    <title>React App</title>
  </head>
  <body>
    <noscript>You need to enable JavaScript to run this app.</noscript>
    <div id="root"></div>
    <!--
      This HTML file is a template.
      If you open it directly in the browser, you will see an empty page.

      You can add webfonts, meta tags, or analytics to this file.
      The build step will place the bundled scripts into the <body> tag.

      To begin the development, run `npm start` or `yarn start`.
      To create a production bundle, use `npm run build` or `yarn build`.
    -->
  <script src="/static/js/bundle.js"></script><script src="/static/js/0.chunk.js"></script><script src="/static/js/main.chunk.js"></script><script src="/main.93e6b12087c32cb33380.hot-update.js"></script></body>
</html>

Answer 2

你需要改变

fetch("public/myJson.json")

只是

fetch("/myJson.json")

从公共文件夹中获取（）本地 json 文件返回 HTML 文件

问题描述

2 个解决方案

解决方案1
0 2020-06-06 13:47:05

解决方案2
0 2021-05-24 15:26:07

从公共文件夹中获取（）本地 json 文件返回 HTML 文件

问题描述

2 个解决方案

解决方案1 0 2020-06-06 13:47:05

解决方案2 0 2021-05-24 15:26:07

解决方案1
0 2020-06-06 13:47:05

解决方案2
0 2021-05-24 15:26:07