?? cartmanager.java
字號(hào):
package com.lmh.servlet.font;
import java.io.IOException;
import javax.servlet.RequestDispatcher;
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.lmh.Cart;
public class CartManager extends HttpServlet {
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request
* the request send by the client to the server
* @param response
* the response send by the server to the client
* @throws ServletException
* if an error occurred
* @throws IOException
* if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession();
Cart cart = (Cart) session.getAttribute("cart");
String mcID_str = request.getParameter("mcID");
String newCount_str = request.getParameter("newCount");
String action = request.getParameter("action");
int mcID = -1;
int newCount = 0;
if (mcID_str != null &&! mcID_str.equalsIgnoreCase("")) {
mcID = Integer.parseInt(mcID_str);
}
if (newCount_str != null && !newCount_str.equalsIgnoreCase("")) {
newCount = Integer.parseInt(newCount_str);
}
if (mcID != -1 && !action.equals("")) {
if (action.equalsIgnoreCase("add")) {
cart.addMc(mcID);
} else if (action.equalsIgnoreCase("delete")) {
cart.deleteMc(mcID);
} else if (action.equalsIgnoreCase("update")) {
cart.updateMc(mcID, newCount);
}
}
if (action.equalsIgnoreCase("clear")) {
cart.clearAllMc();
}
RequestDispatcher rd = request
.getRequestDispatcher("/font/cartManager.jsp");
rd.forward(request, response);
}
}
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