[Spring JPA 실습 #11] 상품 등록 및 조회
- 📚 Spring/Spring JPA 실습
- 2021. 3. 10. 13:55
먼저 DTO를 생성한다.
BookForm
package com.kyhslam.controller;
import lombok.Getter;
import lombok.Setter;
@Setter @Getter
public class BookForm {
private Long id;
private String name;
private int price;
private int stockQuantity;
private String author;
private String isbn;
}
ItemController
package com.kyhslam.controller;
import com.kyhslam.domain.item.Book;
import com.kyhslam.domain.item.Item;
import com.kyhslam.service.ItemService;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import java.util.List;
@Controller
@RequiredArgsConstructor
public class ItemController {
private final ItemService itemService;
@GetMapping("/items/new")
public String createForm(Model model) {
model.addAttribute("form", new BookForm());
return "items/createItemForm";
}
// REST API에서는 엔티티를 넘기면 절대로 안된다!!
@PostMapping("/items/new")
public String create(BookForm form) {
Book book = new Book();
book.setName(form.getName());
book.setPrice(form.getPrice());
book.setStockQuantity(form.getStockQuantity());
book.setAuthor(form.getAuthor());
book.setIsbn(form.getIsbn());
itemService.saveItem(book);
return "redirect:/";
}
@GetMapping("/items")
public String list(Model model) {
List<Item> items = itemService.findItems();
model.addAttribute("items", items);
return "items/itemList";
}
}
참고로 REST API로 만들때는 절대로 Entity를 넘겨줘서는 안된다.
createItemForm.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head th:replace="fragments/header :: header" />
<body>
<div class="container">
<div th:replace="fragments/bodyHeader :: bodyHeader"/>
<form th:action="@{/items/new}" th:object="${form}" method="post">
<div class="form-group">
<label th:for="name">상품명</label>
<input type="text" th:field="*{name}" class="form-control" placeholder="이름을 입력하세요">
</div>
<div class="form-group">
<label th:for="price">가격</label>
<input type="number" th:field="*{price}" class="form-control" placeholder="가격을 입력하세요">
</div>
<div class="form-group">
<label th:for="stockQuantity">수량</label>
<input type="number" th:field="*{stockQuantity}" class="form-control" placeholder="수량을 입력하세요">
</div>
<div class="form-group">
<label th:for="author">저자</label>
<input type="text" th:field="*{author}" class="form-control" placeholder="저자를 입력하세요">
</div>
<div class="form-group">
<label th:for="isbn">ISBN</label>
<input type="text" th:field="*{isbn}" class="form-control" placeholder="ISBN을 입력하세요">
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
<br/>
<div th:replace="fragments/footer :: footer" />
</div> <!-- /container -->
</body>
</html>itemList.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head th:replace="fragments/header :: header" />
<body>
<div class="container">
<div th:replace="fragments/bodyHeader :: bodyHeader"/>
<div>
<table class="table table-striped">
<thead>
<tr>
<th>#</th>
<th>상품명</th>
<th>가격</th>
<th>재고수량</th>
<th></th>
</tr>
</thead>
<tbody>
<tr th:each="item : ${items}">
<td th:text="${item.id}"></td>
<td th:text="${item.name}"></td>
<td th:text="${item.price}"></td>
<td th:text="${item.stockQuantity}"></td>
<td>
<a href="#" th:href="@{/items/{id}/edit (id=${item.id})}"
class="btn btn-primary" role="button">수정</a>
</td>
</tr>
</tbody>
</table>
</div>
<div th:replace="fragments/footer :: footer"/>
</div> <!-- /container -->
</body>
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