final

JavaDemo/SpringBootDemo/src/main/java/com/example/demo/DemoApplication.java

@@ -5,9 +5,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 public class DemoApplication {
-
     public static void main(String[] args) {
         SpringApplication.run(DemoApplication.class, args);
     }
-
 }

JavaDemo/SpringBootDemo/src/main/java/com/example/demo/controller/UserController.java

@@ -12,29 +12,29 @@ import org.springframework.web.bind.annotation.*;
 @RequestMapping("/")
 @RequiredArgsConstructor(onConstructor = @__(@Autowired))
 public class UserController {
-    private final UserService service; 
-    
+    private final UserService service;
+
     @PostMapping("sign/in/up")
-    public ResponseBody signInUp(@RequestBody User user){
-        if(service.exists(user)){
+    public ResponseBody signInUp(@RequestBody User user) {
+        if (service.exists(user)) {
             User u = service.findByNameAndPassword(user);
-            return new ResponseBody(u != null ? ResponseCode.SIGN_IN_SUCCESS : ResponseCode.SIGN_IN_FAILED,u != null ? u.getId() : "");
+            return new ResponseBody(u != null ? ResponseCode.SIGN_IN_SUCCESS : ResponseCode.SIGN_IN_FAILED, u != null ? u.getId() : "");
         }
-        return new ResponseBody(service.insert(user) ? ResponseCode.SIGN_UP_SUCCESS : ResponseCode.SIGN_UP_FAILED,"");
+        return new ResponseBody(service.insert(user) ? ResponseCode.SIGN_UP_SUCCESS : ResponseCode.SIGN_UP_FAILED, "");
     }
 
     @PutMapping("update")
-    public ResponseBody update(@RequestBody User user){
-        return new ResponseBody(service.update(user) ? ResponseCode.UPDATE_SUCCESS : ResponseCode.UPDATE_FAILED,"");
+    public ResponseBody update(@RequestBody User user) {
+        return new ResponseBody(service.update(user) ? ResponseCode.UPDATE_SUCCESS : ResponseCode.UPDATE_FAILED, "");
     }
 
     @DeleteMapping("delete")
-    public ResponseBody deleteByName(@RequestParam int id){
-        return new ResponseBody(service.deleteById(id) ? ResponseCode.DELETE_SUCCESS : ResponseCode.DELETE_FAILED,"");
+    public ResponseBody deleteByName(@RequestParam int id) {
+        return new ResponseBody(service.deleteById(id) ? ResponseCode.DELETE_SUCCESS : ResponseCode.DELETE_FAILED, "");
     }
 
     @GetMapping("test")
-    public String test(){
+    public String test() {
         return "test";
     }
 }

JavaDemo/SpringBootDemo/src/main/java/com/example/demo/repository/UserRepository.java

@@ -5,7 +5,8 @@ import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Repository;
 
 @Repository
-public interface UserRepository extends CrudRepository<User,Integer> {
+public interface UserRepository extends CrudRepository<User, Integer> {
     boolean existsByName(String name);
-    User findByNameAndPassword(String name,String password);
+
+    User findByNameAndPassword(String name, String password);
 }

JavaDemo/SpringBootDemo/src/main/java/com/example/demo/service/UserService.java

@@ -14,29 +14,29 @@ import javax.transaction.Transactional;
 public class UserService {
     private final UserRepository repository;
 
-    public boolean exists(User user){
+    public boolean exists(User user) {
         return repository.existsByName(user.getName());
     }
 
-    public User findByNameAndPassword(User user){
-        return repository.findByNameAndPassword(user.getName(),user.getPassword());
+    public User findByNameAndPassword(User user) {
+        return repository.findByNameAndPassword(user.getName(), user.getPassword());
     }
 
-    public boolean insert(User user){
+    public boolean insert(User user) {
         repository.save(user);
         return true;
     }
 
-    public boolean update(User user){
-        if(repository.findById(user.getId()).isEmpty()){
+    public boolean update(User user) {
+        if (repository.findById(user.getId()).isEmpty()) {
             return false;
         }
         repository.save(user);
         return true;
     }
 
-    public boolean deleteById(int id){
-        if(!repository.existsById(id)){
+    public boolean deleteById(int id) {
+        if (!repository.existsById(id)) {
             return false;
         }
         repository.deleteById(id);