[MVC 구현하기 - 3단계] 여우(조승현) 미션 제출합니다 (#618)

Author: BackFoxx

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

@@ -4,6 +4,11 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import web.org.springframework.web.WebApplicationInitializer;
+import webmvc.org.springframework.web.servlet.DispatcherServlet;
+import webmvc.org.springframework.web.servlet.HandlerAdapterRegistry;
+import webmvc.org.springframework.web.servlet.HandlerMappingRegistry;
+import webmvc.org.springframework.web.servlet.mvc.tobe.AnnotationHandlerMapping;
+import webmvc.org.springframework.web.servlet.mvc.tobe.HandlerExecutionHandlerAdapter;
 
 /**
  * Base class for {@link WebApplicationInitializer}
@@ -17,7 +22,13 @@ public class DispatcherServletInitializer implements WebApplicationInitializer {
 
     @Override
     public void onStartup(final ServletContext servletContext) {
-        final var dispatcherServlet = new DispatcherServlet();
+        final HandlerMappingRegistry handlerMappingRegistry = new HandlerMappingRegistry();
+        handlerMappingRegistry.addHandlerMapping(new AnnotationHandlerMapping("com/techcourse"));
+
+        final HandlerAdapterRegistry handlerAdapterRegistry = new HandlerAdapterRegistry();
+        handlerAdapterRegistry.addHandlerAdapter(new HandlerExecutionHandlerAdapter());
+
+        final var dispatcherServlet = new DispatcherServlet(handlerAdapterRegistry, handlerMappingRegistry);
 
         final var registration = servletContext.addServlet(DEFAULT_SERVLET_NAME, dispatcherServlet);
         if (registration == null) {

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

@@ -0,0 +1,16 @@
+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;
+
+@Controller
+public class IndexViewController {
+
+    @RequestMapping(value = "/", method = RequestMethod.GET)
+    public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
+        return "/index.jsp";
+    }
+}

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

@@ -2,28 +2,34 @@
 
 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 webmvc.org.springframework.web.servlet.mvc.asis.Controller;
 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;
 
-public class LoginController implements Controller {
+
+@Controller
+public class LoginController {
 
     private static final Logger log = LoggerFactory.getLogger(LoginController.class);
 
-    @Override
-    public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
+    @RequestMapping(value = "/login", method = RequestMethod.POST)
+    public ModelAndView execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
         if (UserSession.isLoggedIn(req.getSession())) {
-            return "redirect:/index.jsp";
+            return new ModelAndView(new JspView("redirect:/index.jsp"));
         }
 
         return InMemoryUserRepository.findByAccount(req.getParameter("account"))
                 .map(user -> {
                     log.info("User : {}", user);
-                    return login(req, user);
+                    return new ModelAndView(new JspView(login(req, user)));
                 })
-                .orElse("redirect:/401.jsp");
+                .orElse(new ModelAndView(new JspView("redirect:/401.jsp")));
     }
 
     private String login(final HttpServletRequest request, final User user) {

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

@@ -1,16 +1,19 @@
 package com.techcourse.controller;
 
+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 webmvc.org.springframework.web.servlet.mvc.asis.Controller;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
 
-public class LoginViewController implements Controller {
+@Controller
+public class LoginViewController {
 
     private static final Logger log = LoggerFactory.getLogger(LoginViewController.class);
 
-    @Override
+    @RequestMapping(value = "/login/view", method = RequestMethod.GET)
     public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
         return UserSession.getUserFrom(req.getSession())
                 .map(user -> {

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

@@ -1,12 +1,15 @@
 package com.techcourse.controller;
 
+import context.org.springframework.stereotype.Controller;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import webmvc.org.springframework.web.servlet.mvc.asis.Controller;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
 
-public class LogoutController implements Controller {
+@Controller
+public class LogoutController {
 
-    @Override
+    @RequestMapping(value = "/logout", method = RequestMethod.GET)
     public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
         final var session = req.getSession();
         session.removeAttribute(UserSession.SESSION_KEY);

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

@@ -2,13 +2,16 @@
 
 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 webmvc.org.springframework.web.servlet.mvc.asis.Controller;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
 
-public class RegisterController implements Controller {
+@Controller
+public class RegisterController {
 
-    @Override
+    @RequestMapping(value = "/register", method = RequestMethod.POST)
     public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
         final var user = new User(2,
                 req.getParameter("account"),

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

@@ -1,12 +1,15 @@
 package com.techcourse.controller;
 
+import context.org.springframework.stereotype.Controller;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
-import webmvc.org.springframework.web.servlet.mvc.asis.Controller;
+import web.org.springframework.web.bind.annotation.RequestMapping;
+import web.org.springframework.web.bind.annotation.RequestMethod;
 
-public class RegisterViewController implements Controller {
+@Controller
+public class RegisterViewController {
 
-    @Override
+    @RequestMapping(value = "/register/view", method = RequestMethod.GET)
     public String execute(final HttpServletRequest req, final HttpServletResponse res) throws Exception {
         return "/register.jsp";
     }

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

@@ -0,0 +1,33 @@
+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;
+    }
+}
+