feat : DI 적용

#15

src/main/java/client/Application.java

@@ -0,0 +1,15 @@
+package client;
+
+import spring.ioc.annotation.ComponentScan;
+import spring.ioc.annotation.Configuration;
+import spring.mvc.web.TomcatStarter;
+
+@Configuration
+@ComponentScan(value = {"client"})
+public class Application {
+    public static void main(String[] args) {
+        final TomcatStarter tomcatStarter = new TomcatStarter();
+        tomcatStarter.start();
+        tomcatStarter.await();
+    }
+}

src/main/java/client/controller/UserController.java

@@ -1,48 +1,46 @@
 package client.controller;
 
 import client.controller.dto.CreatUserDto;
-import client.model.User;
+import client.domain.User;
 import client.service.UserService;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import spring.mvc.annotation.Controller;
 import spring.mvc.annotation.RequestMapping;
-import spring.mvc.controller.AbstractController;
-import spring.mvc.handler.mapping.RequestMethod;
+import spring.mvc.web.handler.mapping.RequestMethod;
 import spring.mvc.view.ModelAndView;
 
 import java.util.List;
 
 @Controller
-public class UserController extends AbstractController {
+public class UserController {
 
     private final UserService userService;
 
     public UserController(final UserService userService) {
         this.userService = userService;
     }
 
-    @RequestMapping("/users")
+    @RequestMapping(value = "/users/create", method = RequestMethod.POST)
+    public ModelAndView create(HttpServletRequest request, HttpServletResponse response) {
+        CreatUserDto requestDto = CreatUserDto.of(request);
+        User user = userService.createUser(requestDto);
+
+        ModelAndView modelAndView = new ModelAndView();
+        modelAndView.addObject("user", user);
+        return modelAndView;
+    }
+
+    @RequestMapping(value = "/users", method = RequestMethod.GET)
     public ModelAndView getUsers(HttpServletRequest request, HttpServletResponse response) {
         int wannaSize = Integer.parseInt(request.getParameter("size"));
         List<User> users = userService.getUsersWithSize(wannaSize);
 
-        ModelAndView modelAndView = jsonView();
-        for(int i = 0; i < wannaSize; i++) {
+        ModelAndView modelAndView = new ModelAndView();
+        for (int i = 0; i < users.size(); i++) {
             User user = users.get(i);
             modelAndView.addObject("user"+ i, user);
         }
-
-        return modelAndView;
-    }
-
-    @RequestMapping(value = "/users/create", method = RequestMethod.POST)
-    public ModelAndView create(HttpServletRequest request, HttpServletResponse response) {
-        CreatUserDto requestDto = CreatUserDto.of(request);
-        User user = userService.createUser(requestDto);
-
-        ModelAndView modelAndView = jsonView();
-        modelAndView.addObject("user", user);
         return modelAndView;
     }
 }

src/main/java/client/controller/dto/CreatUserDto.java

@@ -4,12 +4,10 @@
 
 public record CreatUserDto(String name,
                            String password,
-                           String email,
-                           String userId) {
+                           String email) {
     public static CreatUserDto of(final HttpServletRequest request) {
         return new CreatUserDto(request.getParameter("name"),
                 request.getParameter("password"),
-                request.getParameter("email"),
-                request.getParameter("userId"));
+                request.getParameter("email"));
     }
 }

src/main/java/client/domain/User.java

@@ -0,0 +1,29 @@
+package client.domain;
+
+import client.controller.dto.CreatUserDto;
+
+public class User {
+    private long userId;
+    private String name;
+    private String password;
+    private String email;
+
+    public User(long userId, String name, String password, String email) {
+        this.userId = userId;
+        this.name = name;
+        this.password = password;
+        this.email = email;
+    }
+
+    public void updateUserId(long userId) {
+        this.userId = userId;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public static User from(final CreatUserDto dto) {
+        return new User(0, dto.name(), dto.password(), dto.email());
+    }
+}

src/main/java/client/domain/repsotiroy/UserRepository.java

@@ -0,0 +1,32 @@
+package client.domain.repsotiroy;
+
+import client.controller.dto.CreatUserDto;
+import client.domain.User;
+import spring.ioc.annotation.Repository;
+import java.util.*;
+
+@Repository
+public class UserRepository {
+
+    private final Map<Long, User> temporaryDatabase = new HashMap<>();
+    private Long SEQUENCE = 0L;
+
+    public User save(User user) {
+        long id = SEQUENCE++;
+        user.updateUserId(id);
+        temporaryDatabase.put(id, user);
+        return user;
+    }
+
+    public List<User> getUsersWithLimit(int wannaSize) {
+        while(temporaryDatabase.size() < wannaSize) {
+            fixUser();
+        }
+        return new ArrayList<>(temporaryDatabase.values());
+    }
+
+    private void fixUser() {
+        CreatUserDto dto = new CreatUserDto("김명준", "비밀번호", "[email protected]");
+        save(User.from(dto));
+    }
+}

src/main/java/client/service/UserService.java

@@ -1,9 +1,9 @@
 package client.service;
 
 import client.controller.dto.CreatUserDto;
-import client.model.User;
-import client.repsotiroy.UserRepository;
-import spring.mvc.annotation.Service;
+import client.domain.User;
+import client.domain.repsotiroy.UserRepository;
+import spring.ioc.annotation.Service;
 
 import java.util.List;
 
@@ -17,8 +17,7 @@ public UserService(final UserRepository userRepository) {
 
     public User createUser(final CreatUserDto creatUserDto) {
         User user = User.from(creatUserDto);
-        userRepository.save(user);
-        return user;
+        return userRepository.save(user);
     }
 
     public List<User> getUsersWithSize(final int wannaSize) {