?? showcartservlet.java
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package com.ebook.servlet;import java.io.IOException;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import com.ebook.Util.*;import java.util.*;import com.ebook.Entity.*;public class showCartServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { HttpSession session = request.getSession(); shopCart cart = (shopCart) session.getAttribute("cart"); if (cart == null) { request.setAttribute("error", "購物車中沒有任何物品"); request.getRequestDispatcher("error.jsp").forward(request, response); return; } // } // try { ArrayList<cartItem> all = cart.getCart(); request.setAttribute("all", all); String total=String.valueOf(cart.getTotal()); request.setAttribute("total", total); request.getRequestDispatcher("showCart.jsp").forward(request, response); // } catch (Exception e) { // request.getRequestDispatcher("getError.jsp").forward(request, response); // } } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doGet(request, response); }}
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