leiservlet.java

jsp+servlet网上购物,是一个实现mvc的网站

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 com.ebook.Util.*;
import com.ebook.impl.*;
import java.util.ArrayList;

/**
 *
 * @author 闅嗙
 */
public class LeiServlet extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String action=request.getParameter("action");
        if(action.equals("showcate"))
        {
            getCateBook(request,response);
        }
        if(action.equals("queryname"))
        {
            getNameBook(request,response);
        }
        else
        {
            
        }
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);

    }
    public void getNameBook(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException 
    {
          String queryname=request.getParameter("query");
        try {
            BookImpl bi = new BookImpl(new JdbcCon().getCon());
            ArrayList list = bi.getNameBook(queryname);
            request.setAttribute("catebooklist", list);
            CategoryImpl ci = new CategoryImpl(new JdbcCon().getCon());
            ArrayList catelist = ci.getCategory();
            request.setAttribute("catelist", catelist);
        } catch (Exception e) {
        }
  request.getRequestDispatcher("catebook.jsp").forward(request, response);
    }
    public void getCateBook(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException 
    {
         int cateid = Integer.parseInt(request.getParameter("cateid"));
        try {
            BookImpl bi = new BookImpl(new JdbcCon().getCon());
            ArrayList list = bi.getCateBook(cateid);
            request.setAttribute("catebooklist", list);
            CategoryImpl ci = new CategoryImpl(new JdbcCon().getCon());
            ArrayList catelist = ci.getCategory();
            request.setAttribute("catelist", catelist);
        } catch (Exception e) {
        }
  request.getRequestDispatcher("catebook.jsp").forward(request, response);
    }
}