Javascript 请求失败，状态代码404错误

我正在尝试构建一个Spotify web应用程序。我想在用户从搜索结果中单击艺术家时显示艺术家的相册。当我尝试下面的代码时，我得到的请求失败，状态代码404

SingerBox.js

import React, { Component } from "react";
import Modal from "react-bootstrap/Modal";
import ImageNotFound from "../../ImageNotFound.jpg";
import "../../App.css";
import { Link } from "react-router-dom";

import Albums from "../Albums/Albums";
import axios from "axios";

const SingerBox = (props) => {
  const { images, name, id } = props;

  //check if the image array is empty since some artists' image data provided by the API call are empty
  const singer_img = images.length === 0 ? ImageNotFound : images[0].url;

  const handleClick = () => {
    axios
      .get(`http://localhost:4000/${id}`, {
        params: {
          id: id,
        },
      })
      .then((res) => {
        console.log(`Returned album data from the server: ${res}`);
        return <Albums albums={res.data} />;
      })
      .catch((err) => console.log(err));
  };

  return (
    <>
      <Link to={`/albums/${id}`}>
        <div className="box" onClick={() => handleClick()}>
          <div>
            <img className="singer-img" src={singer_img} alt="Card image" />
            {name}
          </div>
        </div>
      </Link>
    </>
  );
};

export default SingerBox;

---

我还想知道如何改进代码的结构，比如axios调用。它们看起来很凌乱，但我不知道从哪里开始修复它们。

在您试图使用的SingerBox组件中，${id}在您的server.js文件中没有这样的API。这就是为什么您会遇到404错误，这意味着找不到

  const handleClick = () => {
  axios
  .get(`http://localhost:4000/${id}`, {
    params: {
      id: id,
    },
  })
  .then((res) => {
    console.log(`Returned album data from the server: ${res}`);
    return <Albums albums={res.data} />;
  })
  .catch((err) => console.log(err));
 };

---

在SingerBox组件中，您试图使get on${id}在server.js文件中没有这样的API。这就是为什么您会遇到404错误，这意味着找不到

  const handleClick = () => {
  axios
  .get(`http://localhost:4000/${id}`, {
    params: {
      id: id,
    },
  })
  .then((res) => {
    console.log(`Returned album data from the server: ${res}`);
    return <Albums albums={res.data} />;
  })
  .catch((err) => console.log(err));
 };

---

如果您从浏览器向Spotify发出GET请求，是否能够获取响应？如果您从浏览器向Spotify发出GET请求，是否能够获取响应？

  const handleClick = () => {
  axios
  .get(`http://localhost:4000/${id}`, {
    params: {
      id: id,
    },
  })
  .then((res) => {
    console.log(`Returned album data from the server: ${res}`);
    return <Albums albums={res.data} />;
  })
  .catch((err) => console.log(err));
 };

 app.get("/:id", (req, res) => {
   " your API logic"
  });