这篇文章主要介绍了怎么使用node.js实现网站登录注册功能的相关知识，内容详细易懂，操作简单快捷，具有一定借鉴价值，相信大家阅读完这篇怎么使用node.js实现网站登录注册功能文章都会有所收获，下面我们一起来看看吧。
效果如下
主入口app.js
app.js为程序程序主要入口，一般主要用来写我们引入的那些中间件及各种设置
var express = require('express');// NodeJS中的Path对象，用于处理目录的对象，提高开发效率var path = require('path');// 用来定义网页logo的中间件var favicon = require('serve-favicon');// NodeJs中Express框架使用morgan中间件记录日志// Express中的app.js文件已经默认引入了该中间件var logger = require('morgan');// 使用app.use(logger('dev'));以将请求信息打印在控制台，便于开发调试，// 但实际生产环境中，需要将日志记录在log文件里var logger = require('morgan');// 存储登录信息中间件var cookieParser = require('cookie-parser');// 解析请求体的中间件var bodyParser = require('body-parser');// 引入模块的js文件var routes = require('./routes/index');// var users = require('./routes/user');// 引入session中间件var session=require('express-session');// 创建项目示例var app = express();// 引入我们需要的模板app.set('views', path.join(__dirname, 'views'));app.set('view engine', 'ejs');// 用摩记录请求app.use(logger('dev'));app.use(bodyParser.json());app.use(bodyParser.urlencoded({ extended: false }));// 利用cookieParser中间件存取信息app.use(cookieParser("Luck"));// 利用session中间件存取信息app.use(session({ secret:'luck', resave:false, saveUninitialized:true}));// 静态化我们的public文件下的文件，使其可以直接引用app.use(express.static(path.join(__dirname, 'public')));app.use('/', routes);// app.use('/users', users);// 捕捉404状态app.use(function(req, res, next) { var err = new Error('Not Found'); err.status = 404; next(err);});module.exports = app;app.listen(3000,'127.0.0.1')routes下的index.js文件index.js这里我用来处理页面的路由跳转var express = require('express');var router = express.Router();// 为数据库链接的js文件，可查询数据库中的用户名和密码等信息var usr=require('netRequest/dbConnect');// 获取首页登录信息router.get('/', function(req, res) { if(req.cookies.islogin){ req.session.islogin=req.cookies.islogin; } if(req.session.islogin){ res.locals.islogin=req.session.islogin; } res.render('index', { title: 'HOME',test:res.locals.islogin});});// 登录页处理router.route('/login') // get请求渲染页面 .get(function(req, res) { if(req.session.islogin){ res.locals.islogin=req.session.islogin; } if(req.cookies.islogin){ req.session.islogin=req.cookies.islogin; } res.render('login', { title: '用户登录' ,test:res.locals.islogin}); }) // post请求查询用户信息 .post(function(req, res) { client=usr.connect(); result=null; // 调用数据库方法 usr.selectFun(client, req.body.username, function (result) { if(result[0]===undefined){ res.send('没有该用户'); }else{ if(result[0].password==req.body.password){ req.session.islogin=req.body.username; res.locals.islogin=req.session.islogin; res.cookie('islogin',res.locals.islogin,{maxAge:60000}); res.redirect('/home'); }else{ res.redirect('/login'); } } }); });// 退出登录页处理router.get('/logout', function(req, res) { res.clearCookie('islogin'); req.session.destroy(); res.redirect('/');});// home页处理router.get('/home', function(req, res) { if(req.session.islogin){ res.locals.islogin=req.session.islogin; } if(req.cookies.islogin){ req.session.islogin=req.cookies.islogin; } res.render('home', { title: 'Home', user: res.locals.islogin });});// 注册页处理router.route('/reg') // get请求渲染页面 .get(function(req,res){ res.render('reg',{title:'注册'}); }) // post请求注册用户 .post(function(req,res) { client = usr.connect(); // 调用数据库方法 usr.insertFun(client,req.body.username ,req.body.password2, function (err) { if(err) throw err; res.send('注册成功'); }); });module.exports = router;node_modules中netRequest/dbConnect.jsdbConnect.js
var mysql=require('mysql');// 现在只是练习可以直接为数据库创建链接，// 用户多时需要创建连接池function connectServer(){ var client=mysql.createConnection({ host:'172.16.20.103', port:3308, database:'test', user:'JRJ_Win', password:'FT%^$fjYR56' }) return client;}function selectFun(client,username,callback){ client.query('select password from win.luck_user where username="'+username+'"',function(err,results,fields){ if(err) throw err; callback(results); });}function insertFun(client , username , password,callback){ client.query('insert into win.luck_user value(?,?)', [username, password], function(err,result){ if( err ){ console.log( "error:" + err.message); return err; } callback(err); });}exports.connect = connectServer;exports.selectFun = selectFun;exports.insertFun = insertFun;剩下即为页面模板
login.ejs
<%- include header %><div class="container"> <form class="col-sm-offset-4 col-sm-4 form-horizontal" role="form" method="post"> <fieldset> <% if(locals.islogin) { %> <h4>用户： <%= test %> 已经登陆。<br></h4> <a class="btn" href="/logout" rel="external nofollow" > 退出登录 </a> <% } else{ %> <div class="form-group"> <label class="col-sm-3 control-label" for="username">用户名</label> <div class="col-sm-9"> <input type="text" class="form-control" id="username" name="username" placeholder="用户名" required> </div> </div> <div class="form-group"> <label class="col-sm-3 control-label" for="password">密码</label> <div class="col-sm-9"> <input type="password" class="form-control" id="password" name="password" placeholder="密码" required> </div> </div> <div class="form-group"> <div class="col-sm-offset-3 col-sm-9"> <button type="submit" class="btn btn-primary">登录</button> </div> </div> <% } %> </fieldset> </form></div><%- include footer %>index.ejs
<%- include header %><div class="jumbotron text-center"> <% if(locals.islogin){%> <h3>用户：<%= test %> </h3>已经登陆 <% }else{%> <h3 class="text-center"><a href="/login" rel="external nofollow" rel="external nofollow" >请登录后查看</a></h3> <%}%> </div><%- include footer %>reg.ejs
<%- include header %><div class="container"> <form class=" col-sm-offset-4 col-sm-4 form-horizontal" role="form" method="post"> <fieldset> <div class="form-group"> <label class="col-sm-3 control-label" for="username">用户名</label> <div class="col-sm-9"> <input type="text" class="form-control" id="username" name="username" placeholder="用户名" required> </div> </div> <div class="form-group"> <label class="col-sm-3 control-label" for="password2">密码</label> <div class="col-sm-9"> <input type="password" class="form-control" id="password2" name="password2" placeholder="密码" required> </div> </div> <div class="form-group"> <div class="col-sm-offset-3 col-sm-9"> <button type="submit" class="btn btn-primary">注册</button> </div> </div> </fieldset> </form></div><%- include footer %>header.ejs
<!DOCTYPE html><html><head> <meta charset="UTF-8"/> <title>Test</title> <link rel="stylesheet" href="/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="external nofollow" > <script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.min.js"></script> <script type="text/javascript" src="/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script></head><body><!-- <header> <h2><%= title %></h2> </header> --> <nav class="navbar navbar-default"> <div class="container-fluid"> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Project name</a> </div> <div id="navbar" class="navbar-collapse collapse"> <ul class="nav navbar-nav"> <li class="active"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >待定</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >待定</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >待定</a></li> <li class="dropdown"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">待定<span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Action</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Another action</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Something else here</a></li> <li role="separator" class="divider"></li> <li class="dropdown-header">Nav header</li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Separated link</a></li> <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >One more separated link</a></li> </ul> </li> </ul> <ul class="nav navbar-nav navbar-right"> <li class="active"><a title="主页" href="/" rel="external nofollow" >首页<span class="sr-only">(current)</span></a></li> <li><a title="登陆" href="/login" rel="external nofollow" rel="external nofollow" >登录</a></li> <li><a title="注册" href="/reg" rel="external nofollow" >注册</a></li> </ul> </div> </nav> <article>footer.ejs
</article></body></html>关于“怎么使用node.js实现网站登录注册功能”这篇文章的内容就介绍到这里，感谢各位的阅读！相信大家对“怎么使用node.js实现网站登录注册功能”知识都有一定的了解，大家如果还想学习更多知识，欢迎关注编程网行业资讯频道。
