전남대 BE_안원모 1주차 과제(2단계)

README.md

@@ -1 +1,13 @@
-# spring-gift-product
+# spring-gift-product
+## 기능 요구사항
+상품 CRUD를 수행하는 관리자 페이지 구현
+
+1. 상품 정보를 저장할 수 있어야 함
+    - 상품명, 가격, 수량, 이미지url을 입력받아 저장할 수 있어야 함
+2. 상품 정보를 조회할 수 있어야 함
+    - ID를 입력받아 해당 ID의 상품 정보를 조회할 수 있어야 함
+    - 모든 상품 정보를 조회할 수 있어야 함
+3. 상품 정보를 수정할 수 있어야 함
+    - 상품 정보를 입력받아 가격, 수량, 이미지url을 수정할 수 있어야 함
+4. 상품 정보를 삭제할 수 있어야 함
+    - ID를 입력받아 상품 정보를 삭제할 수 있어야 함

build.gradle

@@ -9,7 +9,8 @@ version = '0.0.1-SNAPSHOT'
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
+
+        languageVersion = JavaLanguageVersion.of(17)
     }
 }
 
@@ -21,6 +22,7 @@ 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-data-jpa'
     runtimeOnly 'com.h2database:h2'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'

src/main/java/gift/Application.java

@@ -8,4 +8,4 @@ public class Application {
     public static void main(String[] args) {
         SpringApplication.run(Application.class, args);
     }
-}
+}

src/main/java/gift/Product.java

@@ -0,0 +1,50 @@
+package gift;
+
+public class Product {
+    private long id;
+    private String name;
+    private int price;
+    private String imageUrl;
+
+    public Product() {
+    }
+
+    public Product(long id, String name, int price, String imageUrl) {
+        this.id = id;
+        this.name = name;
+        this.price = price;
+        this.imageUrl = imageUrl;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public int getPrice() {
+        return price;
+    }
+
+    public void setPrice(int price) {
+        this.price = price;
+    }
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+}

src/main/java/gift/ProductController.java

@@ -0,0 +1,41 @@
+package gift;
+
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+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.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/api/products")
+public class ProductController {
+    private final ProductService productService;
+
+    @Autowired
+    public ProductController(ProductService productService) {
+        this.productService = productService;
+    }
+
+    @GetMapping
+    public List<Product> getProducts() {
+        return productService.findAllProducts();
+    }
+
+    @PostMapping
+    public Product postProduct(@RequestBody Product product) {
+        return productService.createProduct(product);
+    }
+    @PutMapping("/{id}")
+    public Product putProduct(@PathVariable Long id, @RequestBody Product product) {
+        return productService.updateProduct(id, product);
+    }
+    @DeleteMapping("/{id}")
+    public Long deleteProduct(@PathVariable Long id) {
+        return productService.deleteProduct(id);
+    }
+}

src/main/java/gift/ProductRepository.java

@@ -0,0 +1,42 @@
+package gift;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class ProductRepository {
+
+    private final Map<Long, Product> products = new HashMap<>();
+    private Long counter = 0L;
+
+    public List<Product> findAllProducts() {
+        return new ArrayList<>(products.values());
+    }
+
+    public Product createProduct(Product product) {
+        Long productId = ++counter;
+        product.setId(productId);
+        products.put(productId, product);
+        return products.get(productId);
+    }
+
+    public Product updateProduct(Long id, Product product) {
+        product.setId(id);
+        products.put(id, product);
+        return products.get(id);
+    }
+    public Long deleteProduct(Long id) {
+        products.remove(id);
+        return id;
+    }
+
+    public boolean isExist(Long id) {
+        return products.containsKey(id);
+    }
+    public Product findProductById(Long id) {
+        return products.get(id);
+    }
+}

src/main/java/gift/ProductService.java

@@ -0,0 +1,45 @@
+package gift;
+
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ProductService {
+    private final ProductRepository productRepository;
+
+    @Autowired
+    public ProductService(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public List<Product> findAllProducts() {
+        return productRepository.findAllProducts();
+    }
+    public Product createProduct(Product product) {
+        return productRepository.createProduct(product);
+    }
+
+    public Product updateProduct(Long id, Product product) {
+        if(!isExist(id)) {
+            return createProduct(product);
+        }
+        return productRepository.updateProduct(id, product);
+    }
+
+    public Long deleteProduct(Long id) {
+        if(!isExist(id)) {
+
+            return -1L;
+        }
+        return productRepository.deleteProduct(id);
+    }
+
+    public Product getProductById(Long id) {
+        return productRepository.findProductById(id);
+    }
+
+    private boolean isExist(Long id) {
+        return productRepository.isExist(id);
+    }
+}

src/main/java/gift/ProductWebController.java

@@ -0,0 +1,63 @@
+package gift;
+
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+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.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+@Controller
+@RequestMapping("/")
+public class ProductWebController {
+    private final ProductService productService;
+
+    @Autowired
+    public ProductWebController(ProductService productService) {
+        this.productService = productService;
+    }
+
+    @GetMapping("/products")
+    public String getProductsPage(Model model) {
+        List<Product> products = productService.findAllProducts();
+        model.addAttribute("products", products);
+        return "products";
+    }
+
+    @PostMapping("/products")
+    public String postProduct(@RequestParam String name, @RequestParam int price, @RequestParam String imageUrl) {
+        Product product = new Product();
+        product.setName(name);
+        product.setPrice(price);
+        product.setImageUrl(imageUrl);
+
+        productService.createProduct(product);
+        return "redirect:/products";
+    }
+    @PostMapping("/products/delete")
+    public String deleteProduct(@RequestParam List<Long> productIds) {
+        for (Long id : productIds) {
+            productService.deleteProduct(id);
+        }
+        return "redirect:/products";
+    }
+    @GetMapping("/products/edit/{id}")
+    public String getEditForm(@PathVariable Long id, Model model) {
+        Product product = productService.getProductById(id);
+        model.addAttribute("product", product);
+        return "productEdit";
+    }
+    @PostMapping("/products/edit/{id}")
+    public String editProduct(@RequestParam Long id, @RequestParam String name, @RequestParam int price, @RequestParam String imageUrl) {
+        Product product = new Product();
+        product.setName(name);
+        product.setPrice(price);
+        product.setImageUrl(imageUrl);
+
+        productService.updateProduct(id, product);
+        return "redirect:/products";
+    }
+}

src/main/resources/application.properties

@@ -1 +1 @@
-spring.application.name=spring-gift
+spring.application.name=spring-gift

src/main/resources/templates/productEdit.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html lang="en" xmlns:th="http://www.thymeleaf.org">
+<head>
+  <meta charset="UTF-8">
+  <title>상품 수정 페이지</title>
+</head>
+<body>
+<h2>상품 수정 페이지</h2>
+<form th:action="@{/products/edit/{id}}" th:object="${product}" method="post">
+  <input type="hidden" th:field="*{id}"/>
+
+  <label for="name">상품 이름:</label>
+  <input type="text" id="name" th:field="*{name}" required><br><br>
+
+  <label for="price">상품 가격:</label>
+  <input type="number" id="price" th:field="*{price}" required><br><br>
+
+  <label for="imageUrl">이미지 URL:</label>
+  <input type="text" id="imageUrl" th:field="*{imageUrl}"><br><br>
+
+  <button type="submit">수정</button>
+</form>
+<br>
+<a href="/products">돌아가기</a>
+</body>
+</html>

src/main/resources/templates/products.html

@@ -0,0 +1,51 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>상품 관리 페이지</title>
+</head>
+<body>
+<h1>상품 관리 페이지</h1>
+
+<form th:action="@{/products}" method="post">
+  <label for="name">상품 이름:</label>
+  <input type="text" id="name" name="name" required>
+
+  <label for="price">상품 가격:</label>
+  <input type="number" id="price" name="price" required>
+
+  <label for="imageUrl">이미지 URL :</label>
+  <input type="text" id="imageUrl" name="imageUrl">
+
+  <button type="submit">상품 추가</button>
+</form>
+
+<h2>상품 목록</h2>
+<form th:action="@{/products/delete}" method="post">
+  <table border="1" cellpadding="10" cellspacing="0" style="width: 100%; margin-top: 20px;">
+    <thead>
+    <tr>
+      <th>선택</th>
+      <th>상품 번호</th>
+      <th>상품 이름</th>
+      <th>상품 가격</th>
+      <th>이미지 URL</th>
+      <th>수정</th>
+    </tr>
+    </thead>
+    <tbody>
+    <tr th:each="product : ${products}">
+      <td><input type="checkbox" name="productIds" th:value="${product.id}"></td>
+      <td th:text="${product.id}"></td>
+      <td th:text="${product.name}"></td>
+      <td th:text="${product.price}"></td>
+      <td th:text="${product.imageUrl}"></td>
+      <td><a th:href="@{'/products/edit/' + ${product.id}}">수정</a></td>
+    </tr>
+    </tbody>
+  </table>
+  <button type="submit">선택 상품 삭제</button>
+</form>
+
+</body>
+</html>