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[쉽게 배우는 JSP 웹 프로그래밍] 6장 웹 쇼핑몰 예제 코드 본문
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WebMarket/WebContent/addProduct.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<html>
<head>
<link rel = "stylesheet"
href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<title>상품 등록</title>
</head>
<body>
<jsp:include page="menu.jsp"/>
<div class="jumbotron">
<div class="container">
<h1 class="display-3">상품 등록</h1>
</div>
</div>
<div class="container">
<form name="newProduct" action="./processAddProduct.jsp" class="form-horizontal" method="post">
<div class="form-group row">
<label class="col-sm-2">상품 코드</label>
<div class="col-sm-3">
<input type="text" name="productId" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">상품명</label>
<div class="col-sm-3">
<input type="text" name="name" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">가격</label>
<div class="col-sm-3">
<input type="text" name="unitPrice" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">상세 정보</label>
<div class="col-sm-5">
<textarea name="description" cols="50" rows="2" class="form-control"></textarea>
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">제조사</label>
<div class="col-sm-3">
<input type="text" name="manufacturer" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">분류</label>
<div class="col-sm-3">
<input type="text" name="category" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">재고 수</label>
<div class="col-sm-3">
<input type="text" name="unitsInStock" class="form-control">
</div>
</div>
<div class="form-group row">
<label class="col-sm-2">상태</label>
<div class="col-sm-5">
<input type="radio" name="condition" value="New ">신규 제품
<input type="radio" name="condition" value="Old ">중고 제품
<input type="radio" name="condition" value="Refurbished ">재생 제품
</div>
</div>
<div class="form-group row">
<div class="col-sm-offset-2 col-sm-10">
<input type="submit" class="btn btn-primary" value="등록">
</div>
</div>
</form>
</div>
</body>
</html>
WebMarket/src/dao/ProductRepository.java
package dao;
import java.util.ArrayList;
import dto.Product;
public class ProductRepository {
private ArrayList<Product> listOfProducts = new ArrayList<Product>();
private static ProductRepository instance = new ProductRepository();
public static ProductRepository getInstance() {
return instance;
}
public ProductRepository() {
Product phone = new Product("P1234", "iPhone 6s", 800000);
phone.setDescription("4.7-inch, 1334X750 Renina HD display, 8-megapixel iSight Camera");
phone.setCategory("Smart Phone");
phone.setManufacturer("Apple");
phone.setUnitsInStock(1000);
phone.setCondition("New");
Product notebook = new Product("P1235", "LG PC 그램", 1500000);
notebook.setDescription("13.3-inch, IPS LED display, 5rd Generation Intel Core processors");
notebook.setCategory("Notebook");
notebook.setManufacturer("LG");
notebook.setUnitsInStock(1000);
notebook.setCondition("Refurbished");
Product tablet = new Product("P1236", "Galaxy Tab S", 900000);
tablet.setDescription("212.8*125.6*6.6mm, Super AMOLED display, Octa-core processor");
tablet.setCategory("Tablet");
tablet.setManufacturer("Samsung");
tablet.setUnitsInStock(1000);
tablet.setCondition("Old");
listOfProducts.add(phone);
listOfProducts.add(notebook);
listOfProducts.add(tablet);
}
public ArrayList<Product> getAllProducts() {
return listOfProducts;
}
// listOfProducts에 저장된 모든 상품 목록에서 상품 아이디와 일치하는 상품 가져오는 메소드
public Product getProductById(String productId) {
Product productById = null;
for(int i=0; i<listOfProducts.size(); i++) {
Product product = listOfProducts.get(i);
if(product != null && product.getProductId() != null && product.getProductId().equals(productId)) {
productById = product;
break;
}
}
return productById;
}
public void addProduct(Product product) {
listOfProducts.add(product);
}
}
WebMarket/WebContent/processAddProduct.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<%@ page import="dto.Product" %>
<%@ page import="dao.ProductRepository" %>
<%
request.setCharacterEncoding("UTF-8");
String productId = request.getParameter("productId");
String name = request.getParameter("name");
String unitPrice = request.getParameter("unitPrice");
String description = request.getParameter("description");
String manufacturer = request.getParameter("manufacturer");
String category = request.getParameter("category");
String unitsInStock = request.getParameter("unitsInStock");
String condition = request.getParameter("condition");
Integer price;
if(unitPrice.isEmpty())
price = 0;
else
price = Integer.valueOf(unitPrice);
long stock;
if(unitsInStock.isEmpty())
stock = 0;
else
stock = Long.valueOf(unitsInStock);
ProductRepository dao = ProductRepository.getInstance();
Product newProduct = new Product();
newProduct.setProductId(productId);
newProduct.setPname(name);
newProduct.setUnitPrice(price);
newProduct.setDescription(description);
newProduct.setManufacturer(manufacturer);
newProduct.setCategory(category);
newProduct.setUnitsInStock(stock);
newProduct.setCondition(condition);
dao.addProduct(newProduct);
response.sendRedirect("products.jsp");
%>
WebMarket/WebContent/products.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<%@ page import="java.util.ArrayList"%>
<%@ page import="dto.Product" %>
<%@ page import="dao.ProductRepository" %>
<jsp:useBean id="productDAO" class="dao.ProductRepository" scope="session" />
<html>
<head>
<link rel = "stylesheet"
href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<title>상품 목록</title>
</head>
<body>
<jsp:include page="menu.jsp" />
<div class="jumbotron">
<div class="container">
<h1 class="display-3">상품 목록</h1>
</div>
</div>
<%
ProductRepository dao = ProductRepository.getInstance();
ArrayList<Product> listOfProducts = dao.getAllProducts();
%>
<div class="container">
<div class="row" align="center">
<%
for(int i=0; i<listOfProducts.size(); i++) {
Product product = listOfProducts.get(i);
%>
<div class="col-md-4">
<h3><%=product.getPname() %></h3>
<p><%=product.getDescription() %>
<p><%=product.getUnitPrice() %>원
<p> <a href="./product.jsp?id=<%=product.getProductId() %>"
class="btn btn-secondary" role="button"> 상세 정보 »</a>
</div>
<%
}
%>
</div>
<hr>
</div>
<jsp:include page="footer.jsp"/>
</body>
</html>
WebMarket/WebContent/product.jsp
<%@ page contentType="text/html; charset=utf-8"%>
<%@ page import="dto.Product" %>
<%@ page import="dao.ProductRepository" %>
<jsp:useBean id="productDAO" class="dao.ProductRepository" scope="session" />
<html>
<head>
<link rel = "stylesheet"
href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css">
<title>상품 상세 정보</title>
</head>
<body>
<jsp:include page="menu.jsp" />
<div class="jumbotron">
<div class="container">
<h1 class="display-3">상품 정보</h1>
</div>
</div>
<%
String id = request.getParameter("id");
ProductRepository dao = ProductRepository.getInstance();
Product product = dao.getProductById(id);
%>
<div class="container">
<div class="row">
<div class="col-md-6">
<h3><%=product.getPname() %></h3>
<p><%=product.getDescription() %>
<p> <b>상품 코드 : </b><span class="badge badge-danger"><%=product.getProductId() %></span>
<p> <b>제조사</b> : <%=product.getManufacturer() %>
<p> <b>분류</b> : <%=product.getCategory() %>
<p> <b>재고 수</b> : <%=product.getUnitsInStock() %>
<h4><%=product.getUnitPrice() %>원</h4>
<p> <a href="#" class="btn btn-info"> 상품 주문 »</a>
<a href="./products.jsp" class="btn btn-secondary">상품 목록 »</a>
</div>
</div>
<hr>
</div>
<jsp:include page="footer.jsp"/>
</body>
</html>반응형
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