shopservlet.java~38~

来自「网上购书系统！jsp+servlet+jdbc实现！数据库sqlserver2」· JAVA~38~ 代码 · 共 66 行

package myservlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import serives.userserver;
import beans.BookInfoBean;

public class ShopServlet extends HttpServlet {
    private static final String CONTENT_TYPE = "text/html; charset=GBK";

    //Initialize global variables
    public void init() throws ServletException {
    }

    //Process the HTTP Get request
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        request.setCharacterEncoding("GBK");
        //获得要购买的书籍
        String[] books = request.getParameterValues("book");
        //获得书店的书
        ArrayList list = userserver.SelectBookInfo();
        BookInfoBean bean = new BookInfoBean();
        for (int i = 0; i < list.size(); i++) {
            bean = (BookInfoBean) list.get(i);
            System.out.println(bean.getName());
        }
        //从书店中删除客户不要的书
        for (int i = 0; i < books.length; i++) {

            for (int j = 0;j<list.size();j++) {
                bean = (BookInfoBean) list.get(j);
                //删除客户不要的书
                if (bean.getName()!=books[i]) {
                    list.remove(j);
                    break;
                }
            }
        }
        for (int i = 0; i < list.size(); i++) {
           bean = (BookInfoBean) list.get(i);
           System.out.println(bean.getName());
       }

        response.setContentType(CONTENT_TYPE);
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        session.setMaxInactiveInterval(15 * 60);
        session.setAttribute("book", list);
        //跳转到购物车
        response.sendRedirect("shopcar.jsp");
    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws
            ServletException, IOException {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy() {
    }
}