经过前面几次的学习，已经可以做下小功能，今天要实现的事用户登录路由。
一、users_model.js 功能:定义用户对象模型
var mongoose=require('mongoose'),
Schema=mongoose.Schema;
var UserSchema=new Schema({
username:{type:String,unique:true},
email:String,
color:String,
hashed_password:String
});
mongoose.model('User',UserSchema);
二、users_controller.js 功能:为Express服务器实现用户登录路由
var crypto=require('crypto');
var mongoose=require('mongoose'),User=mongoose.model('User');
function hashPW(pwd){
return crypto.createHash('sha256').update(pwd).
digest('base64').toString();
}
//实现用户登录路由
exports.login=function (req,res){
User.findOne({username:req.body.username})
.exec(function(err,user){
if(!user){
err='User Not Found';
}else if(user.hashed_password===hashPW(req.body.password.toString())){
req.session.regenerate(function(){
req.session.user=user.id;
req.session.username=user.username;
req.session.msg='Authenticated as ' +user.username;
res.redirect('/');
});
}else{
err='Authentication failed. ';
}
if(err){
req.session.regenerate(function(){
req.session.msg=err;
res.redirect('/login');
});
}
});
};
三、login.html
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>用户登录</title> <link rel="stylesheet"type="text/css" href="/static/css/styles.css" rel="external nofollow" /> </head> <body> <div class="form-container"> <p class="form-header">登录</p> <form method="POST" > <label>用户名:</label> <input type="text" name="username"><br> <label>密码:</label> <input type="password" name="password"><br> <input type="submit" value="登录"> </form> </div> <a href="/signup" rel="external nofollow" >注册</a> <hr> <%=msg %> </body> </html>
四、routes.js 功能:为Express服务器实现处理Web请求路由
var crypto=require('crypto');
var express=require('express');
module.exports=function(app){
var users=require('./controllers/users_controller');
app.use('/static',express.static('./static')).
use('/lib',express.static('../lib')
);
app.get('/login',function(req,res){
if(req.session.user){
res.redirect('/');
}
res.render('login',{msg:req.session.msg})
});
app.post('/login',users.login);
页面效果
以上所述是小编给大家介绍的nodejs中实现用户登录路由功能，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
