[Spring MVC] 한성재 미션 제출합니다.

build.gradle

@@ -14,8 +14,15 @@ 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'
+    // DB
+    implementation 'org.springframework.boot:spring-boot-starter-jdbc'
+    runtimeOnly 'com.h2database:h2'
+
+
 }
 
 test {

src/main/java/jdbctest/Customer.java

@@ -0,0 +1,25 @@
+package jdbctest;
+
+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/jdbctest/CustomerController.java

@@ -0,0 +1,41 @@
+package jdbctest;
+
+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 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")
+  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/jdbctest/DemoApplication.java

@@ -0,0 +1,35 @@
+package jdbctest;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+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))");
+
+    List<Object[]> splitUpNames = Arrays.asList("John Woo", "Jeff Dean", "Josh Bloch", "Josh Long").stream()
+        .map(name -> name.split(" "))
+        .collect(Collectors.toList());
+
+    jdbcTemplate.batchUpdate("INSERT INTO customers(first_name, last_name) VALUES (?,?)", splitUpNames);
+
+  }
+}

src/main/java/roomescape/HomeController.java

@@ -0,0 +1,14 @@
+package roomescape;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+
+@Controller
+public class HomeController {
+
+  @GetMapping("/")
+  public String index() {
+    return "home";
+  }
+
+}

src/main/java/roomescape/Reservation.java

@@ -0,0 +1,41 @@
+package roomescape;
+
+public class Reservation {
+
+  private Long id;
+  private String name;
+  private String date;
+  private String time;
+
+  public Reservation(final Long id, final String name, final String date, final String time) {
+    this.id = id;
+    this.name = name;
+    this.date = date;
+    this.time = time;
+  }
+
+  public Long getId() {
+    return id;
+  }
+
+  public String getTime() {
+    return time;
+  }
+
+
+  public String getName() {
+    return name;
+  }
+
+  public String getDate() {
+    return date;
+  }
+
+  public static Reservation toEntity(Reservation reservation, Long id) {
+    return new Reservation(id, reservation.name, reservation.date, reservation.time);
+  }
+
+  public void setId(final Long id) {
+    this.id = id;
+  }
+}

src/main/java/roomescape/ReservationApiController.java

@@ -0,0 +1,71 @@
+package roomescape;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.atomic.AtomicLong;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+import roomescape.exceptions.BadRequestException;
+
+@RestController
+public class ReservationApiController {
+
+  @Autowired
+  private JdbcTemplate jdbcTemplate;
+
+  @GetMapping("/reservations")
+  public ResponseEntity<List<Reservation>> getReservations() {
+    List<Reservation> reservations = jdbcTemplate.query("select * from reservation",
+        ((rs, rowNum) -> new Reservation(rs.getLong("id"), rs.getString("name"),
+            rs.getString("date"), rs.getString("time"))));
+    return ResponseEntity.ok().body(reservations);
+  }
+
+  @PostMapping("/reservations")
+  public ResponseEntity<Reservation> create(@RequestBody Reservation reservation) {
+    if (Objects.isNull(reservation.getDate()) || reservation.getDate().isEmpty() ||
+        Objects.isNull(reservation.getTime()) || reservation.getTime().isEmpty() ||
+        Objects.isNull(reservation.getName()) || reservation.getName().isEmpty()) {
+      throw new BadRequestException("올바르지 않은 입력입니다.");
+    }
+
+    SimpleJdbcInsert simpleJdbcInsert = new SimpleJdbcInsert(jdbcTemplate).withTableName(
+        "reservation").usingGeneratedKeyColumns("id");
+
+    Map<String, Object> map = new HashMap<>();
+    map.put("name", reservation.getName());
+    map.put("date", reservation.getDate());
+    map.put("time", reservation.getTime());
+    Number newId = simpleJdbcInsert.executeAndReturnKey(map);
+    reservation.setId(newId.longValue());
+
+    return ResponseEntity.created(URI.create("/reservations/" + newId.longValue()))
+        .body(reservation);
+  }
+
+  @DeleteMapping("/reservations/{id}")
+  public ResponseEntity<Void> delete(@PathVariable Long id) {
+    int count = this.jdbcTemplate.queryForObject(
+        "select count(*) from reservation where id = ?", new Object[]{id}, int.class);
+
+    if (count == 0) {
+      throw new BadRequestException("존재하지 않는 예약입니다.");
+    }
+
+    this.jdbcTemplate.update("delete from reservation where id = ?", id);
+
+    return ResponseEntity.noContent().build();
+  }
+}

src/main/java/roomescape/ReservationController.java

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

src/main/java/roomescape/exceptions/BadRequestException.java

@@ -0,0 +1,12 @@
+package roomescape.exceptions;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+@ResponseStatus(HttpStatus.BAD_REQUEST)
+public class BadRequestException extends RuntimeException{
+
+  public BadRequestException(String message) {
+    super(message);
+  }
+}

src/main/resources/application.properties

@@ -0,0 +1,4 @@
+# h2-console ??? ??
+spring.h2.console.enabled=true
+# db url
+spring.datasource.url=jdbc:h2:mem:database

src/main/resources/schema.sql

@@ -0,0 +1,10 @@
+DROP TABLE IF EXISTS reservation;
+
+CREATE TABLE reservation
+(
+    id      BIGINT       NOT NULL AUTO_INCREMENT,
+    name    VARCHAR(255) NOT NULL,
+    date    VARCHAR(255) NOT NULL,
+    time    VARCHAR(255) NOT NULL,
+    PRIMARY KEY (id)
+);