我正在尝试用nodejs向我的数据库（mysql）插入一些数据，我已经编写了一些代码，但是在postman中，它无法得到任何响应，尽管我知道我正确地遵循了我观看的一些教程。
这是我的密码
sendorder.js（模型）

var db=require('../dbconnection');

var Task = {
    addTask:function(Task,callback){
        return db.query("Insert into orders ( order_id, order_no, tbl_id, menu_id, \
            order_quantity, order_discount, order_type, \
            order_amount, menu_name, menu_price ) values(?,?,?,?,?,?,?,?,?,?)",
        [
            Task.order_id, Task.order_no, Task.tbl_id, Task.menu_id,
            Task.order_quantity, Task.order_discount, Task.order_type,
            Task.order_amount, Task.menu_name, Task.menu_price
        ], callback);
    },
}

module.exports=Task;

sendorder.js（路由器）

var express = require('express');
var router = express.Router();
var Task = require('../models/SendOrder');

router.post('Send/', function(req, res, next){
        Task.addTask(req.body,function(err,count){
            console.log(req.body);
            if(err)
            {
                res.json(err);
            }
            else{
                res.json(req.body);
            }
        });
});

module.exports = router;

编辑：
数据库连接.js

var mysql=require('mysql');
var connection=mysql.createConnection({

    host: 'localhost',
    user: 'root',
    password: '',
    database: 'opob',

});

module.exports=connection;

应用程序.js

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var mysql = require('mysql');
var connection = require('express-myconnection')

var SendOrder = require('./routes/SendOrder');           // SendOrder

var app = express();  

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

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

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;