4주차 미션 / 서버 2조 박재하

src/main/java/DispatcherServlet.java

@@ -0,0 +1,36 @@
+import controller.Controller;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+import java.io.IOException;
+
+@WebServlet("/")
+public class DispatcherServlet extends HttpServlet {
+    private RequestMapper requestMapper;
+    private static final String REDIRECT = "redirect:";
+
+    @Override
+    public void init() throws ServletException {
+        requestMapper = new RequestMapper();
+    }
+
+    @Override
+    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        String url = req.getRequestURI();
+        Controller controller = requestMapper.getController(url);
+
+        String view = controller.execute(req, resp);
+        sendView(req, resp, view);
+    }
+
+    private static void sendView(HttpServletRequest req, HttpServletResponse resp, String view) throws IOException, ServletException {
+        if (view.startsWith(REDIRECT)) {
+            resp.sendRedirect(view.substring(REDIRECT.length()));
+            return;
+        }
+        req.getRequestDispatcher(view).forward(req, resp);
+    }
+}

src/main/java/RequestMapper.java

@@ -0,0 +1,23 @@
+import controller.*;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class RequestMapper {
+    private static final Map<String, Controller> controllerMap = new HashMap<>();
+
+    static {
+        controllerMap.put("/", new HomeController());
+        controllerMap.put("/user/signup", new CreateUserController());
+        controllerMap.put("/user/userList", new ListUserController());
+        controllerMap.put("/user/login", new LoginController());
+        controllerMap.put("/user/logout", new LogoutController());
+        controllerMap.put("/user/update", new UpdateUserController());
+        controllerMap.put("/user/updateForm", new UpdateUserFormController());
+    }
+
+    public Controller getController(String url) {
+        return controllerMap.get(url);
+    }
+
+}

src/main/java/controller/Controller.java

@@ -0,0 +1,8 @@
+package controller;
+
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+public interface Controller {
+    String execute(HttpServletRequest req, HttpServletResponse response);
+}

src/main/java/controller/CreateUserController.java

@@ -0,0 +1,25 @@
+package controller;
+
+import core.db.MemoryUserRepository;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jwp.model.User;
+
+import java.io.IOException;
+
+public class CreateUserController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        User user = new User(req.getParameter("userId"),
+                req.getParameter("password"),
+                req.getParameter("name"),
+                req.getParameter("email"));
+        MemoryUserRepository.getInstance().addUser(user);
+
+        return "redirect:/user/userList";
+    }
+}

src/main/java/controller/HomeController.java

@@ -0,0 +1,18 @@
+package controller;
+
+import jakarta.servlet.RequestDispatcher;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+
+import java.io.IOException;
+
+public class HomeController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        return "/home.jsp";
+    }
+}

src/main/java/controller/ListUserController.java

@@ -0,0 +1,32 @@
+package controller;
+
+import core.db.MemoryUserRepository;
+import jakarta.servlet.RequestDispatcher;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import jwp.model.User;
+
+import java.io.IOException;
+import java.util.Collection;
+
+public class ListUserController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        HttpSession session = req.getSession();
+        Object value = session.getAttribute("user");
+
+        if (value != null) {
+            Collection<User> users = MemoryUserRepository.getInstance().findAll();
+            req.setAttribute("users", users);
+
+            return "/user/list.jsp";
+        }
+
+        return "redirect:/user/login.jsp";
+    }
+}

src/main/java/controller/LoginController.java

@@ -0,0 +1,32 @@
+package controller;
+
+import core.db.MemoryUserRepository;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+import jwp.model.User;
+
+import java.io.IOException;
+
+public class LoginController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        String userId = req.getParameter("userId");
+        String password = req.getParameter("password");
+
+        User findUser = MemoryUserRepository.getInstance().findUserById(userId);
+
+        if (findUser == null || !findUser.matchPassword(password)) {
+            return "redirect:/user/login_failed.jsp";
+        }
+
+        HttpSession session = req.getSession();
+        session.setAttribute("user", findUser);
+
+        return "redirect:/";
+    }
+}

src/main/java/controller/LogoutController.java

@@ -0,0 +1,21 @@
+package controller;
+
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jakarta.servlet.http.HttpSession;
+
+import java.io.IOException;
+
+public class LogoutController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        HttpSession session = req.getSession();
+        session.removeAttribute("user");
+
+        return "redirect:/";
+    }
+}

src/main/java/controller/UpdateUserController.java

@@ -0,0 +1,26 @@
+package controller;
+
+import core.db.MemoryUserRepository;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jwp.model.User;
+
+import java.io.IOException;
+
+public class UpdateUserController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        User user = new User(req.getParameter("userId"),
+                req.getParameter("password"),
+                req.getParameter("name"),
+                req.getParameter("email"));
+
+        MemoryUserRepository.getInstance().update(user);
+
+        return "redirect:/user/userList";
+    }
+}

src/main/java/controller/UpdateUserFormController.java

@@ -0,0 +1,23 @@
+package controller;
+
+import core.db.MemoryUserRepository;
+import jakarta.servlet.RequestDispatcher;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.annotation.WebServlet;
+import jakarta.servlet.http.HttpServlet;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import jwp.model.User;
+
+import java.io.IOException;
+
+public class UpdateUserFormController implements Controller{
+
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse response) {
+        User user = MemoryUserRepository.getInstance().findUserById(req.getParameter("userId"));
+        req.setAttribute("user", user);
+
+        return "/user/updateForm.jsp";
+    }
+}

src/main/java/core/db/MemoryUserRepository.java

@@ -6,7 +6,7 @@
 import java.util.HashMap;
 import java.util.Map;
 
-public class MemoryUserRepository {
+public class MemoryUserRepository implements Repository{
     private Map<String, User> users = new HashMap<>();
     private static MemoryUserRepository memoryUserRepository;
 
@@ -21,14 +21,17 @@ public static MemoryUserRepository getInstance() {
         return memoryUserRepository;
     }
 
+    @Override
     public void addUser(User user) {
         users.put(user.getUserId(), user);
     }
 
+    @Override
     public User findUserById(String userId) {
         return users.get(userId);
     }
 
+    @Override
     public Collection<User> findAll() {
         return users.values();
     }
@@ -38,4 +41,9 @@ public void changeUserInfo(User user) {
             users.put(user.getUserId(), user);
         }
     }
+
+    public void update(User updateUser) {
+        User originUser = users.get(updateUser.getUserId());
+        originUser.update(updateUser);
+    }
 }

webapp/home.jsp

@@ -0,0 +1,80 @@
+<%@ page contentType="text/html;charset=UTF-8" language="java" %>
+<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
+
+<!doctype html>
+<html lang="ko">
+<%@ include file="./include/header.jspf" %>
+<body>
+<%@ include file="./include/navigation.jspf" %>
+
+<div class="container" id="main">
+    <h2>Q&A</h2>
+    <div class="qna-list">
+        <ul class="list">
+            <li>
+                <div class="wrap">
+                    <div class="main">
+                        <strong class="subject">
+                            <a href="qna/show.jsp"> 객체지향을 가장 잘 다룬 책이 뭐가 있나요? </a>
+                        </strong>
+                        <div class="auth-info">
+                            <i class="icon-add-comment"></i>
+                            <span class="time">2025-03-26 23:11</span>
+                            <span clas="author">이영선</span>
+                            <!-- <a href="./user/profile.html" class="author">이영선</a> -->
+                        </div>
+                        <div class="reply" title="댓글">
+                            <i class="icon-reply"></i>
+                            <span class="point">12</span>
+                        </div>
+                    </div>
+                </div>
+            </li>
+            <li>
+                <div class="wrap">
+                    <div class="main">
+                        <strong class="subject">
+                            <a href="qna/show.jsp"> 객체지향에서 가장 중요하다고 생각하는 것이 무엇인가요? </a>
+                        </strong>
+                        <div class="auth-info">
+                            <i class="icon-add-comment"></i>
+                            <span class="time">2025-03-27 23:55</span>
+                            <span class="author">이윤정</span>
+                            <!-- <a href="./user/profile.html" class="author">이윤정</a> -->
+                        </div>
+                        <div class="reply" title="댓글">
+                            <i class="icon-reply"></i>
+                            <span class="point">8</span>
+                        </div>
+                    </div>
+                </div>
+            </li>
+        </ul>
+        <div class="row">
+            <div class="col-md-5"></div>
+            <div class="col-md-5">
+                <ul class="pagination" style="display:align-items-center;">
+                    <li class="page-item disabled">
+                        <a class="page-link" href="#" tabindex="-1" aria-disabled="true">Previous</a>
+                    </li>
+                    <li class="page-item"><a class="page-link" href="#">1</a></li>
+                    <li class="page-item active" aria-current="page">
+                        <a class="page-link" href="#">2</a>
+                    </li>
+                    <li class="page-item"><a class="page-link" href="#">3</a></li>
+                    <li class="page-item">
+                        <a class="page-link" href="#">Next</a>
+                    </li>
+                </ul>
+            </div>
+            <div class="col-md-2 qna-write">
+                <a href="qna/form.jsp" class="btn btn-primary pull-right" role="button">질문하기</a>
+            </div>
+        </div>
+    </div>
+</div>
+
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js"></script>
+<script src="js/scripts.js"></script>
+</body>
+</html>

webapp/include/header.jspf

@@ -0,0 +1,7 @@
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>KUIT</title>
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link href="./css/styles.css" rel="stylesheet">
+</head>