📄 showcartservlet.java
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/**
* application name ShowCartServlet.java
* copyright Copyright 2008 东软 实训中心版权所有
* company neusoft
* time 2008-8-1
*
* @author 王洪雁
* @version ver 1.0
*/
package javaweb.servlet;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import javaweb.dto.*;
public class ShowCartServlet extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK";
// Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
HttpSession session = request.getSession();
ShopCart shopcart = (ShopCart) session.getAttribute("shopCart");
List products = null;
if (shopcart == null
|| (products = shopcart.getAllProductsFromCart()) == null) {
out.println("<html>");
out.println("<head><title>ShowCartServlet</title></head>");
out.println("<body bgcolor=\"#ffffff\">");
out.println("<p><h1>你目前没有购买任何产品</h1></p>");
out.println("<p><a href=\"" + response.encodeURL("/shopCart/servlet/show")
+ "\">返回产品显示页</a></p>");
out.println("</body>");
out.println("</html>");
out.close();
} else {
Iterator it = products.iterator();
out.println("<html>");
out.println("<head><title>ShowCartServlet</title></head>");
out.println("<body bgcolor=\"#ffffff\">");
out.println("<p><h1>你目前购买的产品为：</h1></p>");
out.println("<table border=\"1\" cellspace=\"0\">");
out
.println("<tr bgcolor=\"#CCCCCC\"><td>产品名称</td><td>产品描述</td><td>价格</td><td>操作</td></tr>");
while (it.hasNext()) {
Product productItem = (Product) it.next();
out.println("<tr><td>" + productItem.getName() + "</td>");
out.println("<td>" + productItem.getDescription() + "</td>");
out.println("<td>" + productItem.getPrice() + "</td>");
out
.println("<td><a href=\""
+ response
.encodeURL("/shopCart/servlet/shopping?action=remove&removeId=")
+ productItem.getId() + "\">删除</a>");
}
out.println("</table>");
out.println("<p>目前您购物车的总价格为：" + shopcart.getAllProductPrice()
+ "元人民币。</p>");
out.println("<p></br><a href=\""
+ response.encodeURL("/shopCart/servlet/show")
+ "\">返回产品显示页</a></p>");
out.println("</body>");
out.println("</html>");
out.close();
}
}
// Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}
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