경북대 BE_권도윤_1주차 과제(1~3단계)

README.md

@@ -1 +1,13 @@
-# spring-gift-product
+# spring-gift-product
+- [x] 상품을 조회, 추가, 수정, 삭제할 수 있는 HTTP API를 구현한다.
+  - [x] 조회
+  - [x] 추가
+  - [x] 수정
+  - [x] 삭제
+- [x] Thymeleaf를 사용하여 상품을 조회, 추가, 수정, 삭제할 수 있는 관리자 화면을 구현한다.
+  - [x] 관리자 페이지 구현
+  - [x] 페이지와 상호작용 할 수 있도록 api 수정
+- [x] 상품 정보를 데이터베이스에 저장한다.
+  - [x] H2 데이터베이스를 사용 설정한다.
+  - [x] 데이터베이스와 통신할 repository를 생성한다.
+  - [x] repository를 통해서 DB에 요청을 보내도록 api 수정

build.gradle

@@ -9,7 +9,7 @@ version = '0.0.1-SNAPSHOT'
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(21)
+        languageVersion = JavaLanguageVersion.of(17)
     }
 }
 

src/main/java/gift/Application.java

@@ -2,10 +2,13 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.filter.HiddenHttpMethodFilter;
 
 @SpringBootApplication
 public class Application {
     public static void main(String[] args) {
+
         SpringApplication.run(Application.class, args);
     }
 }

src/main/java/gift/Product.java

@@ -0,0 +1,58 @@
+package gift;
+
+public class Product {
+    Long id;
+    String name;
+    int price;
+    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 this.id;
+    }
+
+    public void setId(Long id){
+        this.id = id;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    public void setName(String name){
+        this.name = name;
+    }
+
+    public int getPrice(){
+        return this.price;
+    }
+
+    public void setPrice(int price){
+        this.price = price;
+    }
+
+    public String getImageUrl(){
+        return this.imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl){
+        this.imageUrl = imageUrl;
+    }
+
+    public void setProduct(Product product){
+        this.id = product.id;
+        this.name = product.name;
+        this.price = product.price;
+        this.imageUrl = product.imageUrl;
+    }
+}

src/main/java/gift/ProductController.java

@@ -0,0 +1,46 @@
+package gift;
+
+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.ModelAttribute;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+
+
+@Controller
+public class ProductController {
+
+    @Autowired
+    private ProductRepository productRepository;
+
+    @GetMapping("/")
+    public String listProducts(Model model) {
+        model.addAttribute("products", productRepository.findAll());
+        model.addAttribute("newProduct", new Product()); // 새 상품 객체
+        model.addAttribute("product", new Product()); // 편집을 위한 빈 객체*/
+        return "home"; // Thymeleaf 템플릿 이름
+    }
+
+    @PostMapping("/post")
+    public String createProduct(@ModelAttribute Product newProduct){
+        productRepository.save(newProduct);
+        return "redirect:/";
+    }
+
+    @PostMapping ("/update")
+    public String updateProduct(@ModelAttribute Product changeProduct){
+        productRepository.update(changeProduct);
+
+        return "redirect:/";
+    }
+
+    @GetMapping ("/delete/{id}")
+    public String deleteProduct(@PathVariable Long id){
+        productRepository.deleteById(id);
+
+        return "redirect:/";
+    }
+
+}

src/main/java/gift/ProductRepository.java

@@ -0,0 +1,50 @@
+package gift;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import javax.sql.DataSource;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.jdbc.core.BeanPropertyRowMapper;
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.core.simple.SimpleJdbcInsert;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class ProductRepository {
+    private final JdbcTemplate jdbcTemplate;
+    private final SimpleJdbcInsert insertProduct;
+
+    @Autowired
+    public ProductRepository(JdbcTemplate jdbcTemplate, DataSource dataSource) {
+        this.jdbcTemplate = jdbcTemplate;
+        this.insertProduct = new SimpleJdbcInsert(dataSource)
+            .withTableName("products")
+            .usingGeneratedKeyColumns("id");
+    }
+
+    public List<Product> findAll() {
+        return jdbcTemplate.query("SELECT * FROM products", new BeanPropertyRowMapper<>(Product.class));
+    }
+
+    public Product findById(Long id) {
+        return jdbcTemplate.queryForObject("SELECT * FROM products WHERE id = ?", new BeanPropertyRowMapper<>(Product.class), id);
+    }
+
+    public long save(Product product) {
+        Map<String, Object> parameters = new HashMap<>();
+        parameters.put("name", product.getName());
+        parameters.put("price", product.getPrice());
+        parameters.put("image_url", product.getImageUrl());
+        return insertProduct.executeAndReturnKey(parameters).longValue();
+    }
+
+    public int update(Product product) {
+        return jdbcTemplate.update("UPDATE products SET name = ?, price = ?, image_url = ? WHERE id = ?",
+            product.getName(), product.getPrice(), product.getImageUrl(), product.getId());
+    }
+
+    public int deleteById(Long id) {
+        return jdbcTemplate.update("DELETE FROM products WHERE id = ?", id);
+    }
+}

src/main/resources/application.properties

@@ -1 +1,8 @@
 spring.application.name=spring-gift
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driverClassName=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=password
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.h2.console.enabled=true
+spring.sql.init.mode=always

src/main/resources/schema.sql

@@ -0,0 +1,6 @@
+CREATE TABLE IF NOT EXISTS products (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(255) NOT NULL,
+    price DECIMAL(10, 2) NOT NULL,
+    image_url VARCHAR(255)
+);

src/main/resources/templates/home.html

@@ -0,0 +1,93 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+  <meta charset="UTF-8">
+  <title>Title</title>
+  <style>
+    table, th, td {
+      border: 1px solid black;
+      border-collapse: collapse;
+    }
+    th, td {
+      padding: 10px;
+    }
+    form {
+      margin-bottom: 20px;
+    }
+  </style>
+</head>
+<body>
+<h1>Product Management</h1>
+
+<h2>Product List</h2>
+<table>
+  <thead>
+  <tr>
+    <th>ID</th>
+    <th>Name</th>
+    <th>Price</th>
+    <th>Image</th>
+    <th>Actions</th>
+  </tr>
+  </thead>
+  <tbody>
+  <tr th:each="product : ${products}">
+    <td th:text="${product.id}">1</td>
+    <td th:text="${product.name}">Product Name</td>
+    <td th:text="${product.price}">100.00</td>
+    <td><img th:src="@{product.imageUrl}" alt="no image" /></td>
+    <td>
+      <a th:href="@{/delete/{id}(id=${product.id})}">Delete</a>
+    </td>
+  </tr>
+  </tbody>
+</table>
+
+<h2>Create New Product</h2>
+<form th:action="@{/post}" th:object="${newProduct}" method="post">
+  <div>
+    <label>Id:</label>
+    <input type="text" th:field="*{id}" />
+  </div>
+  <div>
+    <label>Name:</label>
+    <input type="text" th:field="*{name}" />
+  </div>
+  <div>
+    <label>Price:</label>
+    <input type="text" th:field="*{price}" />
+  </div>
+  <div>
+    <label>ImageUrl:</label>
+    <input type="text" th:field="*{imageUrl}" />
+  </div>
+  <div>
+    <button type="submit">Save</button>
+  </div>
+</form>
+
+<h2>Update Product</h2>
+<form th:action="@{/update}" th:object="${product}" method="post">
+  <div>
+    <label>Id:</label>
+    <input type="text" th:field="*{id}" />
+  </div>
+  <div>
+    <label>Name:</label>
+    <input type="text" th:field="*{name}" />
+  </div>
+  <div>
+    <label>Price:</label>
+    <input type="text" th:field="*{price}" />
+  </div>
+  <div>
+    <label>Image:</label>
+    <input type="text" th:field="*{imageUrl}" />
+  </div>
+  <div>
+    <button type="submit">Update</button>
+  </div>
+</form>
+</body>
+</html>
+