处理注册的路由

 app.post('/reg', function (req, res, next) {
    var user = new Blog(req.body.user).save(function (err) {
        if (err) return next(err);
        res.redirect('/login/' + user.email);
    });
});

mongooseschemas的代码

 var mongoose = require('mongoose');
var BlogSchema = new mongoose.Schema({
    username: String,
    emailaddress: String,
    password: String
});

module.exports = BlogSchema;

创建module

 var mongoose = require('mongoose');
var BlogSchema = require('../schemas/blog');
var Blog = mongoose.model('Blog', BlogSchema);


module.exports = Blog;