[JSP & Servlet] 쇼핑몰 (오늘 본 상품 & 장바구니) - Service

 

각 클라이언트의 요청을 처리하는 실질적인 비즈니스 로직이 구현되는 곳이다.

 

📌상품 등록 요청 처리 비즈니스 로직

ClothesRegistService.java

package service;

import static db.JdbcUtil.*;
import java.sql.Connection;
import dao.ClothesDAO;
import vo.Clothes;
public class ClothesRegistService {

	public boolean registDog(Clothes cloth) {
		ClothesDAO clothesDAO = ClothesDAO.getInstance();
		Connection con = getConnection();
		clothesDAO.setConnection(con);		
		boolean isRegistSuccess = false;	
		
		//상품 등록
		int insertCount = clothesDAO.insertClothes(cloth);
		
		if(insertCount>0){
			commit(con);
			isRegistSuccess=true;
		}else{
			rollback(con);
		}
		
		close(con);
		return isRegistSuccess;
	}

}

 

 

 

 

📌상품 목록 보기 비즈니스 로직

ClothesListService.java

package service;

import static db.JdbcUtil.*;
import java.sql.Connection;
import java.util.ArrayList;
import dao.ClothesDAO;
import vo.Clothes;
public class ClothesListService {

	public ArrayList<Clothes> getClothesList() {
		ClothesDAO clothesDAO = ClothesDAO.getInstance();
		Connection con = getConnection();
		clothesDAO.setConnection(con);
		
		ArrayList<Clothes> clothesList = clothesDAO.selectClothesList();
		close(con);
		
		return clothesList;
	}
	
}

 

 

📌상품 상세 보기 비즈니스 로직

ClothesViewService.java

package service;

import static db.JdbcUtil.*;
import java.sql.Connection;
import vo.Clothes;
import dao.ClothesDAO;
public class ClothesViewService {

	public Clothes getDogView(int id) {
		Connection con = getConnection();
		ClothesDAO clothesDAO = ClothesDAO.getInstance();
		clothesDAO.setConnection(con);	
		
		//상품의 조회수를 증가
		int updateCount = clothesDAO.updateReadCount(id);
		
		if(updateCount>0){
			commit(con);
		}else{
			rollback(con);
		}
		
		//id 값에 해당하는 상품 얻어오는 것.
		Clothes cloth = clothesDAO.selectClothes(id);
		close(con);
		return cloth;
	}

}

 

 

 

📌장바구니 담기 요청(항목 추가) 비즈니스 로직

ClothesCartAddService.java

package service;

import static db.JdbcUtil.*;
import java.sql.Connection;
import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;
import vo.Clothes;
import dao.ClothesDAO;

public class ClothesCartAddService {

	public Clothes getCartClothes(int id) {
		Connection con = getConnection();
		ClothesDAO clothesDAO = ClothesDAO.getInstance();
		clothesDAO.setConnection(con);	
		Clothes cloth = clothesDAO.selectDog(id);
		close(con);
		return cloth;
	}

	public void addCart(HttpServletRequest request, Clothes cartClothes) {
		
		//세션 영역에 저장되어 있는 장바구니 목록을 얻어오는 것
		HttpSession session = request.getSession();
		ArrayList<Cart> cartList = (ArrayList<Cart>)session.getAttribute("cartList");
		
		//만약 세션 영역에 장바구니 목록 객체가 존재하지 않는다면(장바구니 요청을 처음 실행하는 경우)
		//장바구니 항목을 요소로 추가할 ArrayList 객체를 생성해 해당 객체를 세션 영역의 속성으로 공유
		if(cartList == null){
			cartList = new ArrayList<Cart>();
			session.setAttribute("cartList", cartList);
		}
		
		//지금 장바구니에 담는 항목이 새로 추가되는 항목인지를 저장할 변수
		boolean isNewCart = true;
		
		for (int i = 0; i < cartList.size(); i++) {
			if(cartClothes.getName().equals(cartList.get(i).getName())){
				isNewCart = false;
				cartList.get(i).setQty(cartList.get(i).getQty()+1);
				break;
			}
		}
		
		if(isNewCart){
			Cart cart = new Cart();
			cart.setImage(cartClothes.getImage());
			cart.setName(cartClothes.getName());
			cart.setPrice(cartClothes.getPrice());
			cart.setQty(1);
			cartList.add(cart);
		}
		
	}
	
}

 

 

 

 

📌장바구니 목록 List 보기 비즈니스 로직

ClothesCartListService.java

package service;

import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;

public class ClothesCartListService {
	
	public ArrayList<Cart> getCartList(HttpServletRequest request) {
		HttpSession session = request.getSession();
		ArrayList<Cart> cartList = (ArrayList<Cart>)session.getAttribute("cartList");
		return cartList;
	}
	
}

 

 

 

📌장바구니 삭제 요청 비즈니스 로직

ClothesCartRemoveService.java

package service;

import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;

public class ClothesCartRemoveService {
	
	public void cartRemove(HttpServletRequest request, String[] nameArray) {
		HttpSession session = request.getSession();
		ArrayList<Cart> cartList = (ArrayList<Cart>)session.getAttribute("cartList");
		
		for (int i = 0; i < nameArray.length; i++) {		
			for (int j = 0; j < cartList.size(); j++) {
				if(cartList.get(j).getName().equals(nameArray[i])){
						cartList.remove(cartList.get(j));
				}
				
			}
			
		}
		
	}
}

 

 

 

 

📌장바구니 항목 수량 증가/감소 비즈니스 로직

ClothesCartQtyUpService.java

package service;

import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;

public class ClothesCartQtyUpService {

	public void upCartQty(String name, HttpServletRequest request) {
		HttpSession session = request.getSession();
		ArrayList<Cart> cartList = (ArrayList<Cart>)session.getAttribute("cartList");
		
		for (int i = 0; i < cartList.size(); i++) {
			
			if(cartList.get(i).getName().equals(name)){
				cartList.get(i).setQty(cartList.get(i).getQty()+1);
			}
			
		}
		
	}
	
}

 

ClothesCartQtyDownService.java

package service;

import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;

public class ClothesCartQtyDownService {

	public void downCartQty(String name, HttpServletRequest request) {
		HttpSession session = request.getSession();
		ArrayList<Cart> cartList = (ArrayList<Cart>)session.getAttribute("cartList");
		
		for (int i = 0; i < cartList.size(); i++) {
			
			if(cartList.get(i).getName().equals(name)){
				cartList.get(i).setQty(cartList.get(i).getQty()-1);
			}
			
		}
		
	}

}

 

 

 

 

📌장바구니 목록에서 가격 범위 설정하여 상품 출력 비즈니스 로직

ClothesCartSearchService.java

package service;

import java.util.ArrayList;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import vo.Cart;

public class ClothesCartSearchService {

	public ArrayList<Cart> getCartSearchList(int start_money, int end_money, HttpServletRequest request) {
		HttpSession session = request.getSession();
		ArrayList<Cart> oldCartList = (ArrayList<Cart>)session.getAttribute("cartList");
		ArrayList<Cart> cartList = new ArrayList<Cart>();
		
		for (int i = 0; i < oldCartList.size(); i++) {
			
			if(oldCartList.get(i).getPrice()>=start_money && oldCartList.get(i).getPrice()<=end_money){
				cartList.add(oldCartList.get(i));
			}
			
		}
		
		return cartList;
	}
	
}