고생하셨습니다.

🎉 PR 머지 완료! 🎉

Author: developowl

build.gradle

@@ -14,8 +14,12 @@ repositories {
 
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter'
+    implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'io.rest-assured:rest-assured:5.3.1'
+    implementation 'org.springframework.boot:spring-boot-starter-jdbc' // Jdbc 의존성
+    runtimeOnly 'com.h2database:h2' // 메모리 기반의 H2 데이터베이스
 }
 
 test {

src/main/java/roomescape/controller/CustomerController.java

@@ -0,0 +1,42 @@
+package roomescape.controller;
+
+import org.springframework.http.ResponseEntity;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+import roomescape.hello.Customer;
+
+import java.util.List;
+
+@RestController
+public class CustomerController {
+    private JdbcTemplate jdbcTemplate;
+
+    public CustomerController(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    @PostMapping("/customers")
+    public ResponseEntity<Void> save(@RequestBody Customer customer) {
+        String sql = "INSERT INTO customers(first_name, last_name) VALUES (?,?)";
+        jdbcTemplate.update(sql, customer.getFirstName(), customer.getLastName());
+        return ResponseEntity.ok().build();
+    }
+
+    @GetMapping("/customers") // -> customers 라는 파일(경로)을 만든 적이 없는데 코드가 돌아가긴 함..
+    public ResponseEntity<List<Customer>> list() {
+        String sql = "select id, first_name, last_name from customers";
+        List<Customer> customers = jdbcTemplate.query(
+                sql, (resultSet, rowNum) -> {
+                    Customer customer = new Customer(
+                            resultSet.getLong("id"),
+                            resultSet.getString("first_name"),
+                            resultSet.getString("last_name")
+                    );
+                    return customer;
+                });
+        return ResponseEntity.ok().body(customers);
+    }
+}

src/main/java/roomescape/controller/HomeController.java

@@ -0,0 +1,13 @@
+package roomescape.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class HomeController {
+
+    @GetMapping("/home")
+    public String home() {
+        return "home";
+    }
+}

src/main/java/roomescape/controller/ReservationController.java

@@ -0,0 +1,51 @@
+package roomescape.controller;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.*;
+import roomescape.model.Reservation;
+import roomescape.model.ReservationRequest;
+import roomescape.model.ReservationService;
+
+import java.util.List;
+
+@Controller
+public class ReservationController {
+
+    private ReservationService reservationService;
+
+    public ReservationController(ReservationService reservationService) {
+        this.reservationService = reservationService;
+    }
+
+    @Autowired
+    private JdbcTemplate jdbcTemplate;
+
+    @GetMapping("/reservation")
+    public String reservationPage() {
+        return "reservation";
+    }
+
+    @GetMapping("/reservations")
+    @ResponseBody
+    public List<Reservation> getReservations() {
+        return reservationService.getAllReservations();
+    }
+
+    @PostMapping("/reservations")
+    public ResponseEntity<Reservation> addReservation(@RequestBody ReservationRequest reservationRequest) {
+        Reservation reservation = reservationService.addReservation(reservationRequest);
+        return ResponseEntity.status(HttpStatus.CREATED) // status: 201
+                .header("Location", "/reservations/" + reservation.getId())
+                .body(reservation);
+    }
+
+    @DeleteMapping("/reservations/{id}")
+    public ResponseEntity<Void> deleteReservation(@PathVariable Long id) {
+        reservationService.deleteReservation(id);
+        return ResponseEntity.noContent().build();
+    }
+}

src/main/java/roomescape/exception/GlobalExceptionHandler.java

@@ -0,0 +1,16 @@
+package roomescape.exception;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler({NotFoundReservationException.class, InvalidReservationParameterException.class, IllegalArgumentException.class})
+    public ResponseEntity<String> handleIllegalArgumentException(RuntimeException exception) {
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST)
+                .body(exception.getMessage());
+    }
+}

src/main/java/roomescape/exception/InvalidReservationParameterException.java

@@ -0,0 +1,7 @@
+package roomescape.exception;
+
+public class InvalidReservationParameterException extends RuntimeException {
+    public InvalidReservationParameterException(String message) {
+        super(message);
+    }
+}

src/main/java/roomescape/exception/NotFoundReservationException.java

@@ -0,0 +1,7 @@
+package roomescape.exception;
+
+public class NotFoundReservationException extends RuntimeException {
+    public NotFoundReservationException(String message) {
+        super(message);
+    }
+}

src/main/java/roomescape/hello/Customer.java

@@ -0,0 +1,25 @@
+package roomescape.hello;
+
+public class Customer {
+    private long id;
+    private String firstName;
+    private String lastName;
+
+    public Customer(long id, String firstName, String lastName) {
+        this.id = id;
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+}

src/main/java/roomescape/hello/DemoApplication.java

@@ -0,0 +1,25 @@
+package roomescape.hello;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.CommandLineRunner;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+@SpringBootApplication
+public class DemoApplication implements CommandLineRunner {
+
+    public static void main(String args[]) {
+        SpringApplication.run(DemoApplication.class, args);
+    }
+
+    @Autowired
+    JdbcTemplate jdbcTemplate;
+
+    @Override
+    public void run(String... strings) throws Exception {
+
+        jdbcTemplate.execute("DROP TABLE customers IF EXISTS");
+        jdbcTemplate.execute("CREATE TABLE customers(id SERIAL, first_name VARCHAR(255), last_name VARCHAR(255))");
+    }
+}

src/main/java/roomescape/model/Reservation.java

@@ -0,0 +1,35 @@
+package roomescape.model;
+
+public class Reservation {
+
+    private Long id;
+    private String name;
+    private String date;
+    private String time;
+
+    public Reservation(String name, String date, String time) {
+        this.name = name;
+        this.date = date;
+        this.time = time;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getDate() {
+        return date;
+    }
+
+    public String getTime() {
+        return time;
+    }
+}