我无法取回我的数据，Post函数运行正常，已通过邮递员进行了测试

Question

我无法获取数据，Post函数运行正常，我正在使用Postman对其进行测试。当我放置localhost:3000/api/names/2时，出现此错误

  

无法获取/ api / names / 2

const express = require('express');
const app = express(); 
var cors =require('cors')
app.use(express.json()); app.use(cors())
const names = []

app.get('/api/names/', (req, res) => {
res.send(names);

} );

app.post('/api/names', (req, res) => {
     const name = {
         id: names.length,
         name :req.body.name

     };
     names.push(name);
     res.send(name); 
 });

app.listen(3000, () => console.log('port 3000'));

Answer 1

获取

app.get('/api/names/:id', (req, res) => { res.send(names.filter(x => x.id == req.params.id););