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app.js
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const
express = require("express"),
mongoose = require("mongoose")
//,cookieParser = require('cookie-parser')
//引入express-session
,session = require("express-session")
,mongooseSession = require("connect-mongo")(session)
;
//启动数据库
mongoose
.connect("mongodb://localhost:27017/blog",{useNewUrlParser:true})
.then(()=>{console.log("数据库连接成功")})
.catch(()=>{console.log("数据库连接失败")});
//创建app
let app = express();
app.listen(4561);
//设置session参数
app.use(session({
secret : "afei" //密钥,值随便填写
,rolling:true //只要用户和后端有交互(访问页面,跳转页面,ajax……),刷新存储时间
,resave:false //是否每次请求都重新存储session数据
,saveUninitialized:false //初始值
,cookie : {maxAge:1000*30} //设置session过期时间
,store : new mongooseSession({
url : "mongodb://localhost:27017/blog"
})//不设置store是服务器内存中存储session信息,我们可以通过设置store讲session数据存到数据库
}));
//默认中间件
//app.use(cookieParser())
app.use(express.json());
app.use(express.urlencoded({extended:true}));
app.use(express.static("./public"));
//设置模板引擎
app.set("view engine","ejs");
//根路由
app.get("/",(req,res)=>{res.render("index")});
//注册路由
app.get("/reg",(req,res)=>{res.render("reg")});
app.post("/reg",require("./routers/reg"));
//实时检测用户名是否已存在
//app.post("/repeat",require("./routers/repeat"));
//登录路由
app.get("/login",(req,res)=>{res.render("login")});
app.post("/login",require("./routers/login"));
//用户中心的路由
app.get("/usercenter",require("./routers/usercenter"));