3주차 미션 / 서버 1조 이윤정

src/main/java/core/mvc/Controller.java

@@ -0,0 +1,9 @@
+package core.mvc;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public interface Controller {
+    static final String REDIRECT = "redirect:";
+    String execute(HttpServletRequest req, HttpServletResponse resp);
+}

src/main/java/core/mvc/DispatcherServlet.java

@@ -0,0 +1,42 @@
+package core.mvc;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+import static core.mvc.Controller.REDIRECT;
+
+@WebServlet(name="dispatcher", urlPatterns="/", loadOnStartup=1)
+public class DispatcherServlet extends HttpServlet {
+    private RequestMapper requestMapper;
+
+    @Override
+    public void init() throws ServletException {
+        this.requestMapper = new RequestMapper();
+    }
+
+    @Override
+    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        Controller controller = requestMapper.getController(req);
+        try {
+            String viewName = controller.execute(req, resp);
+            move(viewName, req, resp);
+        } catch (Throwable e) {
+            throw new ServletException(e.getMessage());
+        }
+    }
+
+    private void move(String viewName, HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+        if (viewName.startsWith(REDIRECT)) {
+            resp.sendRedirect(viewName.substring(REDIRECT.length()));
+            return;
+        }
+
+        RequestDispatcher rd = req.getRequestDispatcher(viewName);
+        rd.forward(req, resp);
+    }
+}

src/main/java/core/mvc/ForwardController.java

@@ -0,0 +1,19 @@
+package core.mvc;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public class ForwardController implements Controller {
+    private String forwardUrl;
+
+    public ForwardController(String forwardUrl) {
+        this.forwardUrl = forwardUrl;
+        if (forwardUrl == null) {
+            throw new NullPointerException("forwardUrl is null. 이동할 URL을 입력하세요.");
+        }
+    }
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp){
+        return forwardUrl;
+    }
+}

src/main/java/core/mvc/RequestMapper.java

@@ -0,0 +1,40 @@
+package core.mvc;
+
+import jwp.controller.*;
+
+import javax.servlet.http.HttpServletRequest;
+import java.util.HashMap;
+import java.util.Map;
+
+public class RequestMapper {
+    private Map<String , Controller> controllers = new HashMap<>();
+
+    public RequestMapper() {
+        initControllers();
+    }
+
+    private void initControllers() {
+        controllers.put("/", new HomeController());
+
+        controllers.put("/user/form", new ForwardController("/user/form.jsp"));
+        controllers.put("/user/loginForm", new ForwardController("/user/login.jsp"));
+        controllers.put("/user/loginFailed", new ForwardController("/user/login_failed.jsp"));
+        controllers.put("/qna/form", new ForwardController("/qna/form.jsp"));
+        controllers.put("/qna/show", new ForwardController("/qna/show.jsp"));
+
+
+        controllers.put("/user/userList", new ListUserController());
+
+        controllers.put("/user/login", new LoginController());
+        controllers.put("/user/logout", new LogoutController());
+
+        controllers.put("/user/signup", new CreateUserController());
+
+        controllers.put("/user/updateForm", new UpdateUserFormController());
+        controllers.put("/user/update", new UpdateUserController());
+    }
+
+    public Controller getController(HttpServletRequest request) {
+        return controllers.get(request.getRequestURI());
+    }
+}

src/main/java/jwp/controller/CreateUserController.java

@@ -2,25 +2,29 @@
 
 import core.db.MemoryUserRepository;
 
+import core.mvc.Controller;
 import jwp.model.User;
+import jwp.util.UserSessionUtils;
+
 import javax.servlet.ServletException;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
 import java.io.IOException;
 
-@WebServlet("/user/signup")
-public class CreateUserController extends HttpServlet {
+public class CreateUserController implements Controller {
     @Override
-    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
         User user = new User(req.getParameter("userId"),
                 req.getParameter("password"),
                 req.getParameter("name"),
                 req.getParameter("email"));
 
         MemoryUserRepository.getInstance().addUser(user);
-
-        resp.sendRedirect("/user/userList");
+        HttpSession session = req.getSession();
+        UserSessionUtils.login(session, user);
+        return REDIRECT+"/";
     }
 }

src/main/java/jwp/controller/HomeController.java

@@ -0,0 +1,12 @@
+package jwp.controller;
+
+import core.mvc.Controller;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public class HomeController implements Controller {
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        return "/home.jsp";
+    }
+}

src/main/java/jwp/controller/ListUserController.java

@@ -1,6 +1,8 @@
 package jwp.controller;
 
 import core.db.MemoryUserRepository;
+import core.mvc.Controller;
+import jwp.util.UserSessionUtils;
 
 import javax.servlet.RequestDispatcher;
 import javax.servlet.ServletException;
@@ -10,12 +12,13 @@
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
 
-@WebServlet("/user/userList")
-public class ListUserController extends HttpServlet {
+public class ListUserController implements Controller {
     @Override
-    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-        req.setAttribute("users", MemoryUserRepository.getInstance().findAll());
-        RequestDispatcher rd = req.getRequestDispatcher("/user/list.jsp");
-        rd.forward(req,resp);
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        if(UserSessionUtils.isLogined(req.getSession())){
+            req.setAttribute("users", MemoryUserRepository.getInstance().findAll());
+            return "/user/list.jsp";
+        }
+        return REDIRECT + "/user/login";
     }
 }

src/main/java/jwp/controller/LoginController.java

@@ -0,0 +1,29 @@
+package jwp.controller;
+
+import core.db.MemoryUserRepository;
+import core.mvc.Controller;
+import jwp.model.User;
+import jwp.util.UserSessionUtils;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+
+public class LoginController implements Controller {
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        HttpSession session = req.getSession();
+        String userId = req.getParameter("userId");
+        String password = req.getParameter("password");
+        User user = MemoryUserRepository.getInstance().findUserById(userId);
+        if (user != null && user.matchPassword(password)) {
+            UserSessionUtils.login(session, user);
+            return REDIRECT + "/";
+        }
+        return REDIRECT + "/user/loginFailed";
+    }
+}

src/main/java/jwp/controller/LogoutController.java

@@ -0,0 +1,20 @@
+package jwp.controller;
+
+import core.mvc.Controller;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+
+public class LogoutController implements Controller {
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        HttpSession session = req.getSession();
+        session.removeAttribute("user");
+        return REDIRECT + "/";
+    }
+}

src/main/java/jwp/controller/UpdateUserController.java

@@ -0,0 +1,20 @@
+package jwp.controller;
+
+import core.db.MemoryUserRepository;
+import core.mvc.Controller;
+import jwp.model.User;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+public class UpdateUserController implements Controller {
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        User user = new User(req.getParameter("userId"), req.getParameter("password"), req.getParameter("name"), req.getParameter("email"));
+        MemoryUserRepository.getInstance().changeUserInfo(user);
+        return REDIRECT + "/user/userList";
+    }
+}

src/main/java/jwp/controller/UpdateUserFormController.java

@@ -0,0 +1,28 @@
+package jwp.controller;
+
+import core.db.MemoryUserRepository;
+
+import core.mvc.Controller;
+import jwp.model.User;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+public class UpdateUserFormController implements Controller {
+    @Override
+    public String execute(HttpServletRequest req, HttpServletResponse resp) {
+        String userId = req.getParameter("userId");
+        User user = MemoryUserRepository.getInstance().findUserById(userId);
+        if (user != null) {
+            req.setAttribute("user", user);
+            return "/user/updateForm.jsp";
+        }
+        return REDIRECT + "/";
+    }
+
+}

src/main/java/jwp/util/UserSessionUtils.java

@@ -0,0 +1,22 @@
+package jwp.util;
+
+import jwp.model.User;
+
+import javax.servlet.http.HttpSession;
+
+public class UserSessionUtils {
+    public static final String USER_SESSION_KEY = "user";
+    public static User getUserFromSession(HttpSession session) {
+        Object user = session.getAttribute(USER_SESSION_KEY);
+        if (user == null) return null;
+        return (User) user;
+    }
+
+    public static boolean isLogined(HttpSession session) {
+        return getUserFromSession(session) != null;
+    }
+
+    public static void login(HttpSession session, User user) {
+        session.setAttribute("user", user);
+    }
+}

webapp/home.jsp

@@ -0,0 +1,76 @@
+<%@ 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"> 객체지향에서 가장 중요하다고 생각하는 것이 무엇인가요? </a>
+                          </strong>
+                          <div class="auth-info">
+                              <i class="icon-add-comment"></i>
+                              <span class="time">2024-03-24 02:10</span>
+                              <span clas="author">강지윤</span>
+                          </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"> 동아리에 시간 얼마나 투자할 수 있는지? </a>
+                          </strong>
+                          <div class="auth-info">
+                              <i class="icon-add-comment"></i>
+                              <span class="time">2024-03-24 02:13</span>
+                              <span class="author">강지윤</span>
+                          </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" 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>