如何解决无法获取/错误 nodejs

Question

const express = require("express");
const app = express();
const bodyParser = require("body-parser");
const cors = require("cors");

app.use(cors());
app.use(bodyParser.json());

const bugs = [
  { id: 1, description: "Bug 1", userId: 1, resolved: true },
  { id: 2, description: "Bug 2", userId: 1 },
  { id: 3, description: "Bug 3", userId: 2 },
  { id: 4, description: "Bug 4" }
];

app.get("/api/bugs", (req, res) => {
  res.json(bugs);
});

app.post("/api/bugs", (req, res) => {
  const bug = { id: Date.now(), resolved: false, ...req.body };
  bugs.push(bug);

  res.json(bug);
});

app.patch("/api/bugs/:id", (req, res) => {
  const index = bugs.findIndex(bug => bug.id === parseInt(req.params.id));
  const bug = bugs[index];
  if ("resolved" in req.body) bug.resolved = req.body.resolved;
  if ("userId" in req.body) bug.userId = req.body.userId;

  res.json(bug);
});

app.listen(8000, () => {
  console.log("Node server started on port 8000.");
});

我对nodejs一无所知，但我正在关注别人的教程。他们想将一些后端与项目集成。每当我启动服务器时，我都会收到此错误。我该怎么办？

Answer 1

您的前端似乎调用“http://localhost:8000”，但此路由未定义。

前端应该调用“http://localhost:8000/api/bugs”