[MVC 구현하기 - 3단계] 푸우(백승준) 미션 제출합니다. (#606)

* feat: UserController 추가

* feat: objectMapper 추가 및 사용법 테스트

* chore: 사용하지 않는 테스트 필드 삭제

* feat: JsonView 구현

* refactor: interface Controller 기반 Controller 를 annotation 기반으로 변경

* feat: ExceptionHandler 생성

* refactor: legacy interface Controller 삭제

app/build.gradle

@@ -21,6 +21,7 @@ dependencies {
     implementation "org.apache.tomcat.embed:tomcat-embed-jasper:10.1.13"
     implementation "ch.qos.logback:logback-classic:1.2.12"
     implementation "org.apache.commons:commons-lang3:3.13.0"
+    implementation 'com.fasterxml.jackson.core:jackson-databind:2.14.2'
 
     testImplementation "org.assertj:assertj-core:3.24.2"
     testImplementation "org.junit.jupiter:junit-jupiter-api:5.7.2"

app/src/main/java/com/techcourse/DispatcherServletInitializer.java

@@ -4,10 +4,10 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import web.org.springframework.web.WebApplicationInitializer;
-import webmvc.org.springframework.web.servlet.mvc.asis.AnnotationControllerAdapter;
-import webmvc.org.springframework.web.servlet.mvc.asis.HandlerAdapterRegistry;
-import webmvc.org.springframework.web.servlet.mvc.asis.InterfaceControllerAdapter;
+import webmvc.org.springframework.web.servlet.mvc.tobe.AnnotationControllerAdapter;
 import webmvc.org.springframework.web.servlet.mvc.tobe.AnnotationHandlerMapping;
+import webmvc.org.springframework.web.servlet.mvc.tobe.DispatcherServlet;
+import webmvc.org.springframework.web.servlet.mvc.tobe.HandlerAdapterRegistry;
 import webmvc.org.springframework.web.servlet.mvc.tobe.HandlerMapping;
 import webmvc.org.springframework.web.servlet.mvc.tobe.HandlerMappingRegistry;
 
@@ -39,8 +39,6 @@ public void onStartup(final ServletContext servletContext) {
 
     private HandlerMappingRegistry getHandlerMappingRegistry() {
         HandlerMappingRegistry registry = new HandlerMappingRegistry();
-        registry.addHandlerMapping(
-            getInitializedHandlerMapping(new ManualHandlerMapping()));
         registry.addHandlerMapping(
             getInitializedHandlerMapping(new AnnotationHandlerMapping("com")));
         return registry;
@@ -54,7 +52,6 @@ private HandlerMapping getInitializedHandlerMapping(HandlerMapping handlerMappin
     private HandlerAdapterRegistry getHandlerAdapterRegistry() {
         HandlerAdapterRegistry registry = new HandlerAdapterRegistry();
         registry.addHandlerAdapter(new AnnotationControllerAdapter());
-        registry.addHandlerAdapter(new InterfaceControllerAdapter());
         return registry;
     }
 }

app/src/main/java/com/techcourse/controller/ForwardController.java

@@ -0,0 +1,18 @@
+package com.techcourse.controller;
+
+import context.org.springframework.stereotype.Controller;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
+import webmvc.org.springframework.web.servlet.ModelAndView;
+import webmvc.org.springframework.web.servlet.view.JspView;
+
+@Controller
+public class ForwardController {
+
+    @RequestMapping(value = "/", method = {RequestMethod.GET})
+    public ModelAndView forwardView(HttpServletRequest req, HttpServletResponse res) {
+        return new ModelAndView(new JspView("/index.jsp"));
+    }
+}

app/src/main/java/com/techcourse/controller/LoginController.java

@@ -0,0 +1,54 @@
+package com.techcourse.controller;
+
+import com.techcourse.domain.User;
+import com.techcourse.repository.InMemoryUserRepository;
+import context.org.springframework.stereotype.Controller;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
+import webmvc.org.springframework.web.servlet.ModelAndView;
+import webmvc.org.springframework.web.servlet.view.JspView;
+
+@Controller
+public class LoginController {
+
+    Logger log = LoggerFactory.getLogger(LoginController.class);
+
+    @RequestMapping(value = "/login", method = {RequestMethod.GET})
+    public ModelAndView loginView(HttpServletRequest req, HttpServletResponse res) {
+        if (UserSession.isLoggedIn(req.getSession())) {
+            return modelAndJspViewFor("redirect:index.jsp");
+        }
+        return new ModelAndView(new JspView("/login.jsp"));
+    }
+
+    @RequestMapping(value = "/login", method = {RequestMethod.POST})
+    public ModelAndView handleLogin(HttpServletRequest req, HttpServletResponse res) {
+        if (UserSession.isLoggedIn(req.getSession())) {
+            return modelAndJspViewFor("redirect:index.jsp");
+        }
+
+        return InMemoryUserRepository.findByAccount(req.getParameter("account"))
+            .map(user -> {
+                log.info("User : {}", user);
+                return login(req, user);
+            })
+            .orElseGet(() -> modelAndJspViewFor("redirect:/401.jsp"));
+    }
+
+    private ModelAndView login(final HttpServletRequest request, final User user) {
+        if (user.checkPassword(request.getParameter("password"))) {
+            final var session = request.getSession();
+            session.setAttribute(UserSession.SESSION_KEY, user);
+            return modelAndJspViewFor("redirect:/index.jsp");
+        }
+        return modelAndJspViewFor("redirect:/401.jsp");
+    }
+
+    private ModelAndView modelAndJspViewFor(String path) {
+        return new ModelAndView(new JspView(path));
+    }
+}

app/src/main/java/com/techcourse/controller/LogoutController.java

@@ -0,0 +1,22 @@
+package com.techcourse.controller;
+
+import context.org.springframework.stereotype.Controller;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
+import webmvc.org.springframework.web.servlet.ModelAndView;
+import webmvc.org.springframework.web.servlet.view.JspView;
+
+@Controller
+public class LogoutController {
+
+
+    @RequestMapping(value = "/logout", method = {RequestMethod.GET})
+    public ModelAndView logout(HttpServletRequest req, HttpServletResponse res) {
+        final var session = req.getSession();
+        session.removeAttribute(UserSession.SESSION_KEY);
+        return new ModelAndView(new JspView("redirect:/"));
+    }
+
+}

app/src/main/java/com/techcourse/controller/annotaion/RegisterController.java → app/src/main/java/com/techcourse/controller/RegisterController.java

@@ -1,4 +1,4 @@
-package com.techcourse.controller.annotaion;
+package com.techcourse.controller;
 
 import com.techcourse.domain.User;
 import com.techcourse.repository.InMemoryUserRepository;

app/src/main/java/com/techcourse/controller/annotaion/RegisterViewController.java → app/src/main/java/com/techcourse/controller/RegisterViewController.java

@@ -1,4 +1,4 @@
-package com.techcourse.controller.annotaion;
+package com.techcourse.controller;
 
 import context.org.springframework.stereotype.Controller;
 import jakarta.servlet.http.HttpServletRequest;

app/src/main/java/com/techcourse/controller/UserController.java

@@ -0,0 +1,32 @@
+package com.techcourse.controller;
+
+import com.techcourse.domain.User;
+import com.techcourse.repository.InMemoryUserRepository;
+import context.org.springframework.stereotype.Controller;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
+import webmvc.org.springframework.web.servlet.ModelAndView;
+import webmvc.org.springframework.web.servlet.view.JsonView;
+
+@Controller
+public class UserController {
+
+    private static final Logger log = LoggerFactory.getLogger(UserController.class);
+
+    @RequestMapping(value = "/api/user", method = RequestMethod.GET)
+    public ModelAndView show(HttpServletRequest request, HttpServletResponse response) {
+        final String account = request.getParameter("account");
+        log.debug("user id : {}", account);
+
+        final ModelAndView modelAndView = new ModelAndView(new JsonView());
+        final User user = InMemoryUserRepository.findByAccount(account)
+            .orElseThrow();
+
+        modelAndView.addObject("user", user);
+        return modelAndView;
+    }
+}