const express=require('express');
const static=require('express-static'); //托管静态文件
const cookieParser=require('cookie-parser');　　//解析cookie
const cookieSession=require('cookie-session');　　//解析session
const bodyParser=require('body-parser');　　　　//解析post数据
const multer=require('multer');
const consolidate=require('consolidate');
const MySQL=require('mysql');

//连接池
const db=mysql.createPool({host: 'localhost', user: 'root', password: '123456', database: 'blog'});

var server=express();
server.listen(8080);

//1.解析cookie
server.use(cookieParser('sdfasl43kjoifguokn4lkhoifo4k3'));

//2.使用session
var arr=[];
for(var i=0;i<100000;i++){
 arr.push('keys_'+Math.random());
}
server.use(cookieSession({name: 'zns_sess_id', keys: arr, maxAge: 20*3600*1000}));

//3.post数据
server.use(bodyParser.urlencoded({extended: false}));
server.use(multer({dest: './www/upload'}).any());

//4.配置模板引擎
//输出什么东西
server.set('view engine', 'html');
//模板文件放在哪儿
server.set('views', './template');
//哪种模板引擎
server.engine('html', consolidate.ejs);

//接收用户请求
server.get('/', (req, res, next)=>{
 //查询banner的东西
 db.query("SELECT * FROM banner_table", (err, data)=>{
 if(err){
  res.status(500).send('database error').end();
 }else{
  res.banners=data;

  next();
 }
 });
});
server.get('/', (req, res, next)=>{
 //查询文章列表
 db.query('SELECT ID,title,summery FROM article_table', (err, data)=>{
 if(err){
  res.status(500).send('database error').end();
 }else{
  res.articles=data;

  next();
 }
 });
});
server.get('/', (req, res)=>{
 res.render('index.ejs', {banners: res.banners, articles: res.articles});
});

server.get('/article', (req, res)=>{
 res.render('conText.ejs', {});
});



//4.static数据
server.use(static('./www'));

 

  

  <% for(var i=0;i
  

   
   

   
<%= banners[i].title %>
   
<%= banners[i].sub_title %>
   
  
  <% } %>
  
  

   

   

   

  
 
 

  

  <% for(var i=0;i
  

   
   
<%= articles[i].title %>
   
<%= articles[i].summery %>
   
  
  <% } %>