?? changeamountservlet.java
字號:
package com.gc.biz;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
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.gc.action.Products;
import com.sun.jmx.snmp.Enumerated;
public class ChangeAmountServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
HttpSession ses = request.getSession();
if(ses.getAttribute("shopper")!=null)
{
List list = (List)ses.getAttribute("shopper");
Iterator it = list.iterator();
while(it.hasNext())//存放商品實體類集合的循環
{
List lit =(List)it.next();
Iterator<Products> ite = lit.iterator();
while(ite.hasNext())//實體類的循環,獲取編號
{
Products pro = ite.next();
Enumeration em = request.getParameterNames();
while(em.hasMoreElements())//表單元素的循環,獲取表單提交的值
{
String str = em.nextElement().toString();
int pid = Integer.parseInt(str.substring(6,str.length()));
if(pro.getPid()==pid)
{
int amount = Integer.parseInt(request.getParameter(str));
pro.setAmount(amount);
}
}
}
}
request.setCharacterEncoding("GBK");
response.setCharacterEncoding("GBK");
request.getRequestDispatcher("/MyShopperCart.jsp").forward(request, response);
}
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -