app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
//var cors = require('cors');

var index = require('./routes/index');
var users = require('./routes/users');
var gzh = require('./routes/gzh');

var app = express();
//设置跨域访问
//app.use(cors());

// 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) {
//     //console.log("-跨域访问");
//     res.header("Access-Control-Allow-Origin", "http://localhost:3000");
//     res.header("Access-Control-Allow-Headers", "Content-Type,X-Requested-With");
//     res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
//     res.header("Access-Control-Allow-Credentials","true");
//     // res.header("X-Powered-By",' 3.2.1')
//      res.header("Content-Type", "application/json;charset=utf-8");
//     next();
// });


// uncomment after placing your favicon in /public
//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, 'public')));

app.use('/', index);
app.use('/api/users', users);
app.use('/api/gzh', gzh);

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