用户注册:
let {username,password} = req.body; let u = await UserModel.findOne({username}); if(u){ res.json({ err:1, data:'用户名已存在' }) }
用户注册过了 :
登陆:
router.post('/login',async (req,res)=>{ let {username,password} = req.body; let u = await UserModel.findOne({username,password}); console.log(u) if(u){ // req.session.user = u; res.json({ err:0, data:'登录成功' }) }else{ res.json({ err:1, data:'登录失败' }) } });