express.js - 基本应用路由器不工作

Question

我只是在创建一个基本的应用程序，但它似乎不适合我。谁能帮我找出错误？

这是我的代码：

import express from "express";

const app = express();
const router = express.Router();


app.use((req, res, next) => {
    console.log("first middleware");
    next();
});

router.get("/a", (req, res, next) => {
    res.send("Hello this is route a");
});

router.post("/c", (req, res, next) => {
    res.send("Hello this is route c");
});

app.listen({ port: 8000 }, () => {
    console.log("Express Node server has loaded");
});

节点版本：v14.17.5 速成版：^4.17.1

提前致谢。

Answer 1

您需要应用程序才能使用路由器。

尝试添加 app.use('/route', router);

Answer 2

使用app.use

示例

app.use('/c', c);

Answer 3

使用路由器

import express from "express";

const app = express();
const router = express.Router();


router.get("/a", (req, res, next) => {
res.send("Hello this is route a");
});

router.post("/c", (req, res, next) => {
   res.send("Hello this is route c");
});

app.use(router, (req, res, next) => {
  console.log("first middleware");
  next();
});

app.listen({ port: 8000 }, () => {
  console.log("Express Node server has loaded");
});

express.js - 基本应用路由器不工作

express.js - basic application router not working

node.js

express

express-router