app.js
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var express = require('express');
var app = express();
var bodyParser = require('body-parser');
var fs = require("fs");
app.use(express.static('public'));
app.use(bodyParser.json());
app.use(bodyParser.text());
app.use(bodyParser.urlencoded({
extended: false
})); //post에서bodyparser로 받기 위함
app.set('views', __dirname + '/views');
app.set('views engine', 'ejs');
//main page
app.get(['/food', '/food/:id'], function(req, res) {
var id = req.params.id;
if (id) {
if (id == 'search') {
res.render('map.ejs', {
title: 'Searching',
searching: '경희대학교 국제캠퍼스'
});
} else if (id == 'recommendation') {
res.render('recommendation.ejs', {
title: 'Recommendation',
description: 'Enter the conditions you want.'
});
}
} else {
res.render('index.ejs', {
title: 'Welcome',
description: 'Hello, Here is our homepage.'
});
}
})
//사용자가 호출한 search page
app.post('/food/search', function(req, res) {
var title = req.body.title;
res.render('map.ejs',{
title: 'Search',
searching: title
});
// res.redirect("https://www.google.com/search?q=" + title + "&oq=" + title + "&aqs=chrome..69i57j0l3j69i60j69i61.3149j0j9&sourceid=chrome&ie=UTF-8")
})
//사용자가 호출한 recommendation page
app.post('/food/recommendation', function(req, res) {
fs.readFile('data/food.json', 'utf8', function(err, data) {
if (err) {
console.log((err));
res.status(500).send('Internal Server Error');
} else {
var users = JSON.parse(data);
var price = req.body.price;
var shape = req.body.shape;
var kinds = req.body.kinds;
var list = {
food: []
};
for (var foods in users) {
if ((!price || users[foods]['price'] == price) && (!shape || users[foods]['shape'] == shape) && (!kinds || users[foods]['kinds'] == kinds)) {
list.food.push(foods);
}
// $('<li>').text(foods).appendTo('#users');
}
fs.writeFile('data/temp.json', JSON.stringify(list), "utf8", function(err) {
if (err) {
console.log(err);
res.status(500).send('Internal Server Error');
} else {
fs.readFile('data/temp.json', 'utf8', function(err, data) {
if (err) {
console.log((err));
res.status(500).send('Internal Server Error');
} else {
var food = JSON.parse(data)['food'];
var length = food.length;
var rand = Math.floor(Math.random() * length); //(Math.random() * (max - min)) + min
var food_value = food[rand];
console.log(rand);
res.render('print.ejs', {
title: 'Recommendation',
description: 'We recommend this...',
randvalue: food_value
});//rander closed
}
});//readFile closed
}
});//writeFile closed
}
});//readFile closed
});//post closed
app.listen(3000, function() {
console.log('Connected, 3000');
})