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);    }}