[쉽게 배우는 JSP 웹 프로그래밍] 7장 웹 쇼핑몰 예제 코드

WebMarket/src/dto/Product.java

package dto;

import java.io.Serializable;

public class Product implements Serializable {
	
	
	private static final long serialVersionUID = 1L;
	private String productId; // 상품 아이디
	private String pname;  // 상품명
	private Integer unitPrice;  // 상품 가격
	private String description;   // 상품 설명
	private String manufacturer; // 제조사
	private String category; // 분류
	private long unitsInStock;  // 재고 수
	private String condition;  // 신상품 or 중고품 or 재생품
	private String filename; // 이미지 파일명
	
	public Product() {
		super();
	}
	
	public Product(String productId, String pname, Integer unitPrice) {
		this.productId = productId;
		this.pname = pname;
		this.unitPrice = unitPrice;
	}

	public String getProductId() {
		return productId;
	}

	public void setProductId(String productId) {
		this.productId = productId;
	}

	public String getPname() {
		return pname;
	}

	public void setPname(String pname) {
		this.pname = pname;
	}

	public Integer getUnitPrice() {
		return unitPrice;
	}

	public void setUnitPrice(Integer unitPrice) {
		this.unitPrice = unitPrice;
	}

	public String getDescription() {
		return description;
	}

	public void setDescription(String description) {
		this.description = description;
	}

	public String getManufacturer() {
		return manufacturer;
	}

	public void setManufacturer(String manufacturer) {
		this.manufacturer = manufacturer;
	}

	public String getCategory() {
		return category;
	}

	public void setCategory(String category) {
		this.category = category;
	}

	public long getUnitsInStock() {
		return unitsInStock;
	}

	public void setUnitsInStock(long unitsInStock) {
		this.unitsInStock = unitsInStock;
	}

	public String getCondition() {
		return condition;
	}

	public void setCondition(String condition) {
		this.condition = condition;
	}
	
	public String getFilename() {
		return filename;
	}
	
	public void setFilename(String filename) {
		this.filename = filename;
	}

	

}

 

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");
		phone.setFilename("P1234.png");
		
		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");
		notebook.setFilename("P1235.png");
		
		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");
		tablet.setFilename("P1236.png");
		
		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/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="./resources/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">
			<img src="./resources/images/<%=product.getFilename() %>" style="width: 100%">
			<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 &raquo;</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="./resources/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-5">
				<img src="./resources/images/<%=product.getFilename() %>" style="width: 100%">
			</div>
			<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 &raquo;</a>
				<a href="./products.jsp" class="btn btn-secondary">상품 목록 &raquo;</a>
				
			</div>
		
		</div>
		<hr>
	</div>
	
	<jsp:include page="footer.jsp"/>
</body>
</html>

 

WebMarket/WebContent/addProduct.jsp

<%@ page contentType="text/html; charset=utf-8"%>
<html>
<head>
<link rel = "stylesheet" href="./resources/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" enctype="multipart/form-data">
			<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">
				<label class="col-sm-2">이미지</label>
				<div clss="col-sm-5">
					<input type="file" name="productImage" class="form-control">
				</div>
				<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/WebContent/processAddproduct.jsp

<%@ page contentType="text/html; charset=utf-8"%>
<%@ page import="com.oreilly.servlet.*" %>
<%@ page import="com.oreilly.servlet.multipart.*" %>
<%@ page import="java.util.*" %>
<%@ page import="dto.Product" %>
<%@ page import="dao.ProductRepository" %>

<%
	request.setCharacterEncoding("UTF-8");

	String filename = "";
	String realFolder = "C:\\upload";  // 웹 애플리케이션상의 절대 경로
	int maxSize = 5 * 1024 * 1024;  // 최대 업로드될 파일의 크기 5MB
	String encType = "utf-8";  // 인코딩 유형
	
	MultipartRequest multi = new MultipartRequest(request, realFolder, maxSize, encType, new DefaultFileRenamePolicy());

	String productId = multi.getParameter("productId");
	String name = multi.getParameter("name");
	String unitPrice = multi.getParameter("unitPrice");
	String description = multi.getParameter("description");
	String manufacturer = multi.getParameter("manufacturer");
	String category = multi.getParameter("category");
	String unitsInStock = multi.getParameter("unitsInStock");
	String condition = multi.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);
	
	Enumeration files = multi.getFileNames();
	String fname = (String) files.nextElement();
	String fileName = multi.getFilesystemName(fname);
	
	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);
	newProduct.setFilename(fileName);
	
	dao.addProduct(newProduct);
	
	response.sendRedirect("products.jsp");
	
%>