6주차 미션 / 서버 3조 이승준

build.gradle

@@ -1,46 +1,38 @@
 plugins {
+    id 'org.springframework.boot' version '2.7.17' // 스프링 부트 플러그인 적용
+    id 'io.spring.dependency-management' version '1.0.15.RELEASE' // 의존성 관리 플러그인
     id 'java'
-    id 'idea'
 }
 
-idea {
-    module {
-        inheritOutputDirs = false
-        outputDir = file('./webapp/WEB-INF/classes')
-    }
-}
-
-group 'org.example'
-version '1.0-SNAPSHOT'
+group = 'org.example'
+version = '1.0-SNAPSHOT'
+sourceCompatibility = '11' // 사용하는 자바 버전에 맞게 설정 (예: 11)
 
 repositories {
     mavenCentral()
 }
 
-ext {
-    springVersion = "5.1.8.RELEASE"
-    tomcatVersion = '8.5.42'
-}
-
 dependencies {
-    testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.1'
-    testImplementation "org.springframework:spring-test:$springVersion"
-    testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.1'
+    // 1. Spring Boot Web Starter
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+
+    // 2. Spring Boot Data JPA Starter
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 
-    implementation("org.springframework:spring-jdbc:$springVersion")
-    implementation("org.springframework:spring-web:$springVersion")
-    implementation "org.reflections:reflections:0.10.2"
+    // 3. JSP 템플릿 엔진 사용을 위한 의존성
+    implementation 'org.apache.tomcat.embed:tomcat-embed-jasper'
+    implementation 'javax.servlet:jstl:1.2'
 
-    implementation("org.apache.commons:commons-dbcp2:2.6.0")
+    // 4. 데이터베이스 드라이버 (H2, MySQL 등 필요한 것 사용)
+    runtimeOnly 'com.h2database:h2'
+    runtimeOnly 'mysql:mysql-connector-java'
 
-    runtimeOnly("com.h2database:h2:2.1.214")
-    runtimeOnly('mysql:mysql-connector-java:8.0.28')
+    // 5. Lombok (선택 사항이지만 강력히 추천)
+    compileOnly 'org.projectlombok:lombok'
+    annotationProcessor 'org.projectlombok:lombok'
 
-    implementation("org.apache.tomcat.embed:tomcat-embed-core:$tomcatVersion")
-    implementation("org.apache.tomcat.embed:tomcat-embed-logging-juli:8.5.2")
-    implementation("org.apache.tomcat.embed:tomcat-embed-jasper:$tomcatVersion")
-    implementation group: 'javax.servlet', name: 'jstl', version: '1.2'
-    implementation 'com.fasterxml.jackson.core:jackson-databind:2.12.7.1'
+    // 6. Spring Boot Test Starter
+    testImplementation 'org.springframework.boot:spring-boot-starter-test'
 }
 
 test {

src/main/java/jwp/WebServerLauncher.java

@@ -0,0 +1,12 @@
+package jwp;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class WebServerLauncher {
+
+    public static void main(String[] args) throws Exception {
+        SpringApplication.run(WebServerLauncher.class, args);
+    }
+}

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

@@ -1,18 +1,34 @@
 package jwp.controller;
 
+import jwp.dao.QuestionDao;
+import jwp.model.Question;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
 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 java.sql.SQLException;
+import java.util.List;
+
+@Controller
+@RequiredArgsConstructor
+public class HomeController {
+
+    private final QuestionDao questionDao;
+    @GetMapping("/")
+    public String listQuestions(Model model) throws ServletException, IOException {
+        model.addAttribute("questions", questionDao.findAll());
+
+        return "/home";
+    }
+
 
-@WebServlet("/")
-public class HomeController extends HttpServlet {
-	@Override
-	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-		RequestDispatcher rd = req.getRequestDispatcher("/home.jsp");
-		rd.forward(req, resp);
-	}
 }

src/main/java/jwp/controller/QnaController.java

@@ -0,0 +1,42 @@
+package jwp.controller;
+
+import jwp.dao.QuestionDao;
+import jwp.model.Question;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+import util.SessionUtil;
+import util.UserSessionUtils;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+
+@Controller
+@RequestMapping("/qna")
+@RequiredArgsConstructor
+public class QnaController {
+    private final QuestionDao questionDao;
+
+    @PostMapping("/create")
+    public String createQuestion(@ModelAttribute Question question) throws ServletException, IOException {
+        questionDao.insert(question);
+        return "redirect:/";
+    }
+    @GetMapping("/form")
+    public String form(HttpSession session) {
+        if (UserSessionUtils.isLogined(session)) {
+            return "/qna/form";
+        }
+        return "redirect:/user/login";
+    }
+    @GetMapping("/show")
+    public String show(@RequestParam("questionId") String questionId, Model model) throws ServletException, IOException {
+        Question question = questionDao.findByQuestionId((Long.parseLong(questionId)));
+        model.addAttribute("question", question);
+        return "qna/show";
+    }
+}

src/main/java/jwp/controller/UserController.java

@@ -0,0 +1,78 @@
+package jwp.controller;
+
+import core.db.MemoryUserRepository;
+import jwp.dao.UserDao;
+import jwp.model.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+import util.SessionUtil;
+import util.UserSessionUtils;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Collection;
+
+@Controller()
+@RequestMapping("/user")
+@RequiredArgsConstructor
+
+public class UserController {
+    private final UserDao userDao;
+
+    @PostMapping("/signup")
+    public String createUser(@ModelAttribute User user) throws Exception {
+        userDao.insert(user);
+        System.out.println("user 회원가입 완료");
+        return "redirect:/user/list";
+    }
+
+    @GetMapping("/list")
+    public String listUsers(HttpSession session, Model model) throws Exception {
+
+        if(UserSessionUtils.isLogined(session)) {
+            model.addAttribute("users", userDao.findAll());
+            return "/user/list";
+        }
+        return "redirect:/user/login";
+    }
+
+    @PostMapping("/login")
+    public String userLogin(@RequestParam("userId") String userId, @RequestParam("password") String password, HttpSession session) throws Exception {
+        User user = userDao.findByUserId(userId);
+        if(user != null && user.getPassword().equals(password)){
+            session.setAttribute("user", user);
+            return "redirect:/";
+        }
+        return "redirect:/user/loginFailed";
+    }
+
+    @GetMapping("/logout")
+    public String userLogout(HttpSession session) throws ServletException, IOException {
+        session.removeAttribute("user");
+        return "redirect:/";
+    }
+
+    @PostMapping("/update")
+    public String update(@ModelAttribute User user) throws Exception {
+        userDao.update(user);
+        return "redirect:/user/list";
+    }
+
+    @GetMapping("/updateForm")
+    public String updateForm(@RequestParam("userId") String userId , HttpSession session) throws ServletException, IOException {
+        User user = (User)session.getAttribute("user");
+        if (!UserSessionUtils.isLogined(session)) {
+            return "redirect:/user/login";
+        }
+        if(user!=null && user.getUserId().equals(userId)){
+            return "/user/updateForm";
+        }
+        return "redirect:/";
+    }
+}

src/main/java/jwp/dao/QuestionDao.java

@@ -0,0 +1,31 @@
+package jwp.dao;
+
+import jwp.model.Question;
+import jwp.model.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+import util.Keyholder;
+
+import javax.persistence.EntityManager;
+import javax.transaction.Transactional;
+import java.sql.SQLException;
+import java.util.List;
+
+@Repository
+@RequiredArgsConstructor
+public class QuestionDao {
+    private final EntityManager em;
+
+    public List<Question> findAll() {
+        return em.createQuery("select q from Question q", Question.class).getResultList();
+    }
+
+    @Transactional
+    public void insert(Question question) {
+        em.persist(question);
+    }
+
+    public Question findByQuestionId(Long questionId) {
+        return em.find(Question.class, questionId);
+    }
+}

src/main/java/jwp/dao/UserDao.java

@@ -0,0 +1,36 @@
+package jwp.dao;
+
+import jwp.model.User;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Repository;
+import org.springframework.transaction.annotation.Transactional;
+
+import javax.persistence.EntityManager;
+import java.sql.SQLException;
+import java.util.List;
+
+
+@Repository
+@RequiredArgsConstructor
+public class UserDao {
+
+    private final EntityManager em;
+
+    @Transactional
+       public void insert(User user) throws SQLException {
+        em.persist(user);
+    }
+
+    public void update(User user) throws SQLException {
+        em.merge(user);
+    }
+
+
+    public List<User> findAll() throws SQLException {
+        return em.createQuery("select u from User u", User.class).getResultList();
+    }
+
+    public User findByUserId(String userId) throws SQLException {
+       return em.find(User.class, userId);
+    }
+}