'우분투에 MySQL 설치하기'에서 EC2 back 서버에 404 ERROR가 뜹니다

Question

mysql 설치해서 db연결하는 것까지는 성공했습니다. 그런데 back server에 접속하면 404 에러가 나와서요ㅜㅜ. 왜 그런지 감도 못잡고 있는 초보입니다. 도와주세요~ ubuntu@ip-172-31-47-106:~/Ymillonga/back$ sudo mysql -u root -p Enter password:  Welcome to the MySQL monitor.  Commands end with ; or \g.Your MySQL connection id is 42 Server version: 8.0.22 MySQL Community Server - GPL       Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> use react-nodebird; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> show tables; +--------------------------+ | Tables_in_react-nodebird | +--------------------------+ | Follow                   | | Hashtags                 | | Like                     | | PostHashtag              | | comments                 | | images                   | | posts                    | | users                    | +--------------------------+ 8 rows in set (0.00 sec) mysql> exit; Bye app.js const   express  =  require ( 'express' ); const   cors  =  require ( 'cors' ); const   session  =  require ( 'express-session' ); const   cookieParser  =  require ( 'cookie-parser' ); const   passport  =  require ( 'passport' ); const   dotenv  =  require ( 'dotenv' ); const   morgan  =  require ( 'morgan' ); const   path  =  require ( 'path' ); const   hpp  =  require ( 'hpp' ); const   helmet  =  require ( 'helmet' ); const   postRouter  =  require ( './routes/post' ); const   postsRouter  =  require ( './routes/posts' ); const   userRouter  =  require ( './routes/user' ); const   hashtagRouter  =  require ( './routes/hashtag' ); const   db  =  require ( './models' ); const   passportConfig  =  require ( './passport' ); dotenv . config (); const   app  =  express (); db . sequelize . sync ()     . then (()  =>  {          console . log ( 'db연결 성공' );     })     . catch ( console . error ); passportConfig (); if  ( process . env . NODE_ENV  ===  'production' ) {      app . use ( morgan ( 'combined' ));      app . use ( hpp ());      app . use ( helmet ()); }  else  {      app . use ( morgan ( 'dev' )); } app . use ( cors ({      origin :  [ 'http://localhost:3060' ,  'nodebird.com' ,  'http://52.79.186.162' ], //'http://nodebird.com', 해당 주소에서 온 요청만 허용      credentials :   true , //true: cookie를 다른 도메인(3060 port에서 3065 port로 전달하는 경우)으로 전달하게 함 })); app . use ( '/' ,  express . static ( path . join ( __dirname ,  'uploads' ))); // '/' => 'localhost:3065/모모.png',__dirname(현재폴더:back), __dirname + 'uploads'로 적지 않는다. 운영체제마다 /(맥),\(윈도우) 경로설정 다른 것을 자동으로 해준다.  app . use ( express . json ()); app . use ( express . urlencoded ({  extended :   true  })); app . use ( cookieParser ( process . env . COOKIE_SECRET )); app . use ( session (     {          saveUninitialized :   false ,          resave :   false ,          secret :   process . env . COOKIE_SECRET ,     } )); app . use ( passport . initialize ()); app . use ( passport . session ()); app . use ( '/posts' ,  postsRouter ); app . use ( '/post' ,  postRouter ); app . use ( '/user' ,  userRouter ); app . use ( '/hashtag' ,  hashtagRouter ); // app.use((err, req, res, next) => { //     //에러 처리 미들웨어를 특별하게 보이도록 하고 싶을 때 따로 만들어주기 // }); app . listen ( 80 , ()  =>  {      console . log ( '서버 실행 중' ); });

제로초(조현영) · Answer

GET / 라우터를 안 만드신 것 아닌가요? 다른 라우터들 require해온 것은 보이는데 GET /는 보이지 않습니다. app.get('/')가 있어야 뜹니다.

maliethy · Answer

앗 그걸 빼먹었군요 3분만에 답변 주셔서 깜짝 놀랐습니다 감사합니다