我想在数据库中添加一个快速路线html表单的代码。表单正在工作，经过清理的跟踪和办公室号码已从用户输入正确输出到控制台，但对数据库的调用未完成。
你知道为什么从快线发起邮递时没有呼叫db吗？

npm start
> node-forms@1.0.0 start C:\node-forms
> nodemon src/server.js

[nodemon] 1.14.12
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node src/server.js`
body-parser deprecated undefined extended: provide extended option src\server.js:20:14
App running at http://localhost:3000
Sanitized: { trackngNumber: '6e56e77747474747', officeNumber: '5656' }

服务器.js

const express = require('express')
const router = express.Router()
const { check, validationResult } = require('express-validator/check')
const { matchedData } = require('express-validator/filter')
var mysql = require('mysql');

var con = mysql.createConnection({
  host: "localhost",
  user: "reguser",
  password: '',
  port: 3306
});

router.get('/', (req, res) => {
  res.render('index')
})

router.get('/addtrackingnumber', (req, res) => {
  res.render('addtrackingnumber', {
    data: {},
    errors: {}
  })
})

router.post('/addtrackingnumber', [
  check('trackngNumber')
    .isLength({ min: 13 })
    .withMessage('trackng Number is required')
    .trim(),
  check('officeNumber')
    .isLength({ min:4, max:4  })
    .withMessage('That office Number doesn‘t look right')
    .trim()
], (req, res) => {
  const errors = validationResult(req)
  if (!errors.isEmpty()) {
    return res.render('addtrackingnumber', {
      data: req.body,
      errors: errors.mapped()
    })
  }

  const data = matchedData(req)
  console.log('Sanitized:', data)

  req.flash('success', 'Thanks this has been inputted')
  res.redirect('/')
})

router.get('/trackingnumbers', (req, res) => {
  res.render('trackingnumbers', {
    data: {},
    errors: {}
  })
})

router.post('/trackingnumbers', [
  check('officeNumber')
    .isLength({ min:4, max:4  })
    .withMessage('That office Number doesn‘t look right')
    .trim()
], (req, res) => {
  const errors = validationResult(req)
  if (!errors.isEmpty()) {
    return res.render('trackingnumbers', {
      data: req.body,
      errors: errors.mapped()
    })
  }

  con.connect(function(err) {
  if (err) throw err;
  console.log("Connected!");
  var sqloffice = "INSERT INTO offices (office_Number) VALUES ('1236')";
  var sqltracking = "INSERT INTO `trackingnumbers` (`tracking_Number`, `office_Number`) VALUES ('343434344334', '1236')";
  con.query(sqloffice, function (err, result) {
    if (err) throw err;
    console.log("1 office inserted");
  });
  con.query(sqltracking, function (err, result) {
    if (err) throw err;
    console.log("1 tracking inserted");
  });
}); 

  const data = matchedData(req)
  console.log('Sanitized:', data)

  req.flash('success', 'Thanks this has been inputted')

  res.redirect('/')
})

module.exports = router

添加跟踪编号.ejs

<div class="form-header">
  <% if (Object.keys(errors).length === 0) { %>
    <h2>Input Fedex Trackng Number</h2>
  <% } else { %>
    <h2 class="errors-heading">Oops, please correct the following:</h2>
    <ul class="errors-list">
      <% Object.values(errors).forEach(error => { %>
        <li><%= error.msg %></li>
      <% }) %>
    </ul>
  <% } %>
</div>

<form method="post" action="/addtrackingnumber" novalidate>
  <div class="form-field <%= errors.trackngNumber ? 'form-field-invalid' : '' %>">
    <label for="trackngNumber">Trackng Number</label>
    <textarea class="input" id="trackngNumber" name="trackngNumber" rows="4" autofocus><%= data.trackngNumber %></textarea>
    <% if (errors.trackngNumber) { %>
      <div class="error"><%= errors.trackngNumber.msg %></div>
    <% } %>
  </div>
  <div class="form-field <%= errors.officeNumber ? 'form-field-invalid' : '' %>">
    <label for="officeNumber">office Number</label>
    <input class="input" id="officeNumber" name="officeNumber" type="officeNumber" value="<%= data.officeNumber %>" />
    <% if (errors.officeNumber) { %>
      <div class="error"><%= errors.officeNumber.msg %></div>
    <% } %>
  </div>
  <div class="form-actions">
    <button class="btn" type="submit">Send</button>
  </div>
</form>