app.js

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

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var apiRouter = require('./routes/api');
var session = require('express-session');
var FileStore = require('session-file-store')(session);


var app = express();

var identityKey = 'qckey';
app.use(session({
  name: identityKey,
  secret: 'chyingp', // 用来对session id相关的cookie进行签名
  store: new FileStore(), // 本地存储session（文本文件，也可以选择其他store，比如redis的）
  saveUninitialized: false, // 是否自动保存未初始化的会话，建议false
  resave: false, // 是否每次都重新保存会话，建议false
  cookie: {
    maxAge: 1000 * 1000 // 有效期，单位是毫秒
  }
}));
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.engine('.html', require('ejs').__express);
app.set('view engine', 'html');

app.all('*',function (req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'Content-Type, Content-Length, Authorization, Accept, X-Requested-With , yourHeaderFeild');
  res.header('Access-Control-Allow-Methods', 'PUT, POST, GET, DELETE, OPTIONS');

  if (req.method == 'OPTIONS') {
    res.send(200); /让options请求快速返回/
  }
  else {
    next();
  }
});

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')));
/*
var opts = {
  host:     localhost,
  database: database,
  protocol: 'mysql',
  port:     '3307',
  query:    {pool: true}
};
app.use(orm.express(opt, {
	define: function (db, models, next) {
		models.administrator = db.define("administrator", {
      id       : int,
      name     : String,
      phone    : String,
      password : String
    });
		next();
	}
}));
*/

app.use('/', indexRouter);
app.use('/users', usersRouter);
app.use('/api',apiRouter);
// 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
  console.log(err);
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;