app.js

const express = require('express');
const path = require('path');
const logger = require('morgan');
const cookieParser = require('cookie-parser');
const bodyParser = require('body-parser');
const start = require( './app/tool/start.js' );
const app = express();
const cors = require( 'cors' );

// view engine setup
app.set( 'views', path.join( __dirname, './app/views' ) );
app.engine( '.html', require( 'ejs' ).__express );
app.set( 'view engine', 'html' );

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

// 跨域问题 cert模块
// app.all( '*', function( req, res, next )
// {
// 	res.setHeader("Access-Control-Allow-Origin", "*");
//     res.setHeader("Access-Control-Allow-Credentials", "true");
//     res.setHeader("Access-Control-Allow-Methods", "*");
//     res.setHeader("Access-Control-Allow-Headers", "Content-Type,Access-Token,X-Requested-With");
//     res.setHeader("Access-Control-Expose-Headers", "*");

//     if( req.method == 'OPTIONS' ) 
//     {
//         res.sendStatus( 200 );
//     }
//     else next();
// });

//解决跨域问题
app.use( cors() );

start.run( app );


// catch 404 and forward to error handler
app.use( function( req, res, next )
{
  	let err = new Error( 'Not Found' );
  	err.status = 404;
  	next( err );
});

// 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;