부산대 BE_원윤서 2주차 과제(Step1)

README.md

@@ -1 +1,9 @@
-# spring-gift-wishlist
+# spring-gift-wishlist
+구현할 기능 목록
+1. Product DTO에 조건 추가
+2. 컨트롤러 수정
+   - 상품 추가 시 검증
+   - 상품 수정 시 검증
+3. 뷰 수정
+   - 상품 추가 뷰 : 필드값 에러 시 오류 메시지 출력
+   - 삼품 수정 뷰 : 필드값 에러 시 오류 메시지 출력

build.gradle

@@ -1,15 +1,15 @@
 plugins {
     id 'java'
     id 'org.springframework.boot' version '3.3.1'
-    id 'io.spring.dependency-management' version '1.1.5'
+    id 'io.spring.dependency-management' version '1.1.4'
 }
 
 group = 'camp.nextstep.edu'
 version = '0.0.1-SNAPSHOT'
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
+        languageVersion = JavaLanguageVersion.of(17)
     }
 }
 
@@ -21,6 +21,8 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-jdbc'
     implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.springframework.boot:spring-boot-starter-validation'
+
     runtimeOnly 'com.h2database:h2'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'

src/main/java/gift/Product.java

@@ -0,0 +1,37 @@
+package gift;
+
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
+
+public class Product {
+    Long id;
+    String name;
+    Long price;
+    String imageUrl;
+
+    public Product() {
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Long getPrice() {
+        return price;
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public Product(Long id, String name, Long price, String imageUrl) {
+        this.id = id;
+        this.name = name;
+        this.price = price;
+        this.imageUrl = imageUrl;
+    }
+}

src/main/java/gift/ProductController.java

@@ -0,0 +1,79 @@
+package gift;
+
+import jakarta.validation.Valid;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+
+@Controller
+@RequestMapping("/manager")
+public class ProductController {
+    private final ProductRepository productRepository;
+
+    public ProductController(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    @PostMapping("/products/add")
+    public String addProduct(@Valid @ModelAttribute("newProduct") ProductDTO newProduct, BindingResult bindingResult, RedirectAttributes redirectAttributes){
+        if (bindingResult.hasErrors()) {
+            return "AddProduct";
+        }
+
+        System.out.println("add");
+        Product product = productRepository.insertProduct(newProduct);
+        redirectAttributes.addAttribute("id", product.getId());
+        System.out.println(product.id);
+        return "redirect:/manager/products/{id}";
+    }
+
+    @PutMapping("/products/update/{id}")
+    public String updateProduct(@PathVariable Long id, @Valid @ModelAttribute("product") ProductDTO product, BindingResult bindingResult, RedirectAttributes redirectAttributes){
+        if (bindingResult.hasErrors()) {
+            return "UpdateProduct";
+        }
+
+        System.out.println("update");
+        productRepository.updateProduct(id, product);
+        redirectAttributes.addAttribute("id", id);
+        return "redirect:/manager/products/{id}";
+    }
+
+    @DeleteMapping("/products/delete/{id}")
+    public String deleteProduct(@PathVariable Long id){
+        System.out.println("delete");
+        Product product = productRepository.selectProduct(id);
+        if(product != null){
+            productRepository.deleteProduct(id);
+        }
+        return "redirect:/manager/products";
+    }
+
+    @GetMapping("/products")
+    public String getProductsView(Model model){
+        model.addAttribute("products", productRepository.selectProducts());
+        return "ManageProduct";
+    }
+
+    @GetMapping("/products/add")
+    public String addProductView(Model model){
+        model.addAttribute("newProduct", new Product());
+        return "AddProduct";
+    }
+
+    @GetMapping("/products/update/{id}")
+    public String updateProductView(@PathVariable Long id, Model model){
+        model.addAttribute("product", new ProductDTO(productRepository.selectProduct(id)));
+        return "UpdateProduct";
+    }
+
+    @GetMapping("/products/{id}")
+    public String getProduct(@PathVariable long id, Model model) {
+        Product product = productRepository.selectProduct(id);
+        model.addAttribute("product", product);
+        return "ProductInfo";
+    }
+}

src/main/java/gift/ProductDTO.java

@@ -0,0 +1,60 @@
+package gift;
+
+import jakarta.validation.constraints.AssertTrue;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Pattern;
+
+public class ProductDTO {
+    @NotBlank(message = "상품명은 공백으로 둘 수 없습니다.")
+    @Pattern(regexp = "^[a-zA-Zㄱ-ㅎ가-힣0-9\\(\\)\\[\\]\\+\\-&/\\_ ]{1,16}$", message = "상품명은 공백을 포함하여 최대 15자까지 입력할 수 있습니다. 특수문자는 ( ) [ ] + - & / _ 만 사용 가능합니다.")
+    String name;
+    @NotNull(message = "가격은 공백으로 둘 수 없습니다.")
+    Long price;
+    @NotBlank(message = "이미지 URL은 공백으로 둘 수 없습니다.")
+    String imageUrl;
+
+    @AssertTrue(message = "\"카카오\"가 포함된 문구는 담당 MD와 협의한 경우에만 사용할 수 있습니다.")
+    public boolean isNameNotContainingKakao() {
+        return name == null || !name.contains("카카오");
+    }
+
+    public ProductDTO() {
+    }
+
+    public ProductDTO(String name, Long price, String imageUrl) {
+        this.name = name;
+        this.price = price;
+        this.imageUrl = imageUrl;
+    }
+
+    public ProductDTO(Product product) {
+        this.name = product.getName();
+        this.price = product.getPrice();
+        this.imageUrl = product.getImageUrl();
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Long getPrice() {
+        return price;
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setPrice(Long price) {
+        this.price = price;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+}

src/main/java/gift/ProductRepository.java

@@ -0,0 +1,71 @@
+package gift;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.RowMapper;
+import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
+import org.springframework.stereotype.Repository;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Repository
+public class ProductRepository {
+    private final JdbcTemplate jdbcTemplate;
+    private SimpleJdbcInsert simpleJdbcInsert;
+    public ProductRepository(JdbcTemplate jdbcTemplate) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.simpleJdbcInsert = new SimpleJdbcInsert(jdbcTemplate)
+                .withTableName("Products")
+                .usingGeneratedKeyColumns("id");
+    }
+
+    public Product insertProduct(ProductDTO product){
+        Map<String, Object> parameters = new HashMap<String, Object>();
+        parameters.put("name", product.getName());
+        parameters.put("price", product.getPrice());
+        parameters.put("imageUrl", product.getImageUrl());
+        Long id = simpleJdbcInsert.executeAndReturnKey(parameters).longValue();
+        return new Product(id, product.getName(), product.getPrice(), product.getImageUrl());
+    }
+    public Product selectProduct(Long id) {
+        var sql = "select id, name, price, imageUrl from Products where id = ?";
+        return jdbcTemplate.queryForObject(
+                sql,
+                getProductRowMapper(),
+                id
+        );
+    }
+
+    public List<Product> selectProducts(){
+        var sql = "select id, name, price, imageUrl from Products";
+        return jdbcTemplate.query(
+                sql,
+                getProductRowMapper()
+        );
+    }
+
+    private static RowMapper<Product> getProductRowMapper() {
+        return (resultSet, rowNum) -> new Product(
+                resultSet.getLong("id"),
+                resultSet.getString("name"),
+                resultSet.getLong("price"),
+                resultSet.getString("imageUrl")
+        );
+    }
+
+    public Product updateProduct(Long id, ProductDTO updateParam){
+        var sql = "update Products set name=?, price=?, imageUrl=? where id = ?";
+        jdbcTemplate.update(sql,
+                updateParam.getName(),
+                updateParam.getPrice(),
+                updateParam.getImageUrl(),
+                id);
+        return new Product(id, updateParam.getName(), updateParam.getPrice(), updateParam.getImageUrl());
+    }
+
+    public void deleteProduct(Long id){
+        var sql = "delete from Products where id = ?";
+        jdbcTemplate.update(sql, id);
+    }
+}

src/main/java/gift/ProductViewController.java

@@ -0,0 +1,2 @@
+package gift;public class ProductViewController {
+}

src/main/resources/application.properties

@@ -1 +1,5 @@
 spring.application.name=spring-gift
+spring.mvc.hiddenmethod.filter.enabled=true
+spring.h2.console.enabled=true
+spring.datasource.url=jdbc:h2:mem:test
+spring.datasource.username=sa

src/main/resources/schema.sql

@@ -0,0 +1,9 @@
+DROP TABLE IF EXISTS PRODUCTS;
+
+CREATE TABLE PRODUCTS (
+                    id long NOT NULL AUTO_INCREMENT,
+                    name varchar(255) NOT NULL,
+                    price long NOT NULL,
+                    imageurl varchar(255),
+                    primary key (id)
+                );

src/main/resources/templates/AddOrUpdateProduct.html

@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+    <meta charset="UTF-8">
+    <title>상품 등록/수정</title>
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
+</head>
+<body>
+<div class="p-5 mb-5 text-center</> bg-light">
+    <h1 class="mb-3" th:align="center"><b>상품 관리</b></h1>
+    <h4 class="mb-3" th:align="center">관리자 전용 상품 관리 페이지</h4>
+</div>
+<div class="container">
+    <form action="ProductInfo.html" th:action th:object="${product}" method="post">
+
+        <div>
+            <label for="id">ID</label>
+            <input type="text" th:if="${product.id} != null" disabled id="id" th:field="*{id}" class="form-control" placeholder="ID를 입력하세요">
+        </div>
+        <div>
+            <label for="name">상품명</label>
+            <input type="text" id="name" th:field="*{name}" class="form-control" placeholder="이름을 입력하세요">
+        </div>
+        <div>
+            <label for="price">가격</label>
+            <input type="text" id="price" th:field="*{price}" class="form-control" placeholder="가격을 입력하세요">
+        </div>
+        <div>
+            <label for="imageUrl">이미지 URL</label>
+            <input type="text" id="imageUrl" th:field="*{imageUrl}" class="form-control" placeholder="이미지 URL을 입력하세요">
+        </div>
+
+        <div class="row">
+            <div class="col">
+                <button th:if="${product.id} == null" class="w-100 btn btn-primary btn-lg" type="submit">상품 등록</button>
+                <button th:if="${product.id}!=null" class="w-100 btn btn-primary btn-lg" type="submit">상품 수정</button>
+            </div>
+            <div class="col">
+                <button class="w-100 btn btn-secondary btn-lg"
+                        onclick="location.href='ManageProduct.html'"
+                        th:onclick="|location.href='@{/manager/products}'|"
+                        type="button">취소</button>
+            </div>
+        </div>
+        <input type="hidden" th:if="${product.id} != null" name="_method" value="PUT"/>
+    </form>
+
+</div>
+</body>