フロントエンドおよびバックエンド開発における Spring フレームワークの機能の調査

public class UserController {
    private UserService userService;
    
    public UserController(UserService userService) {
        this.userService = userService;
    }
    
    // 省略其他方法
}

public class UserService {
    // 省略方法实现
}

public class Main {
    public static void main(String[] args) {
        UserService userService = new UserService();
        UserController userController = new UserController(userService);
        
        // 省略其他操作
    }
}

@Aspect
@Component
public class LoggingAspect {
    
    @Before("execution(* com.example.service.*.*(..))")
    public void beforeAdvice(JoinPoint joinPoint) {
        System.out.println("Method " + joinPoint.getSignature().getName() + " is called.");
    }
}

@Service
public class UserService {
    public void createUser(String username, String password) {
        // 创建用户逻辑实现
    }
}

@Controller
public class UserController {
    
    @Autowired
    private UserService userService;
    
    @RequestMapping(value = "/user/{id}", method = RequestMethod.GET)
    public String getUser(@PathVariable int id, Model model) {
        User user = userService.getUserById(id);
        model.addAttribute("user", user);
        return "user";
    }
}

@Repository
public class UserDaoImpl implements UserDao {
    @Autowired
    private JdbcTemplate jdbcTemplate;
    
    public User getUserById(int id) {
        String sql = "SELECT * FROM users WHERE id = ?";
        return jdbcTemplate.queryForObject(sql, new Object[]{id}, new UserRowMapper());
    }
    
    // 省略其他方法
}

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .authorizeRequests()
                .antMatchers("/admin/**").hasRole("ADMIN")
                .antMatchers("/user/**").hasRole("USER")
                .anyRequest().authenticated()
                .and()
            .formLogin()
                .and()
            .logout()
                .and()
            .csrf().disable();
    }
    
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth
            .inMemoryAuthentication()
                .withUser("admin").password("password").roles("ADMIN")
                .and()
                .withUser("user").password("password").roles("USER");
    }
}