【Java开源代码栏目提醒】:文章导读:在新的一年中,各位网友都进入紧张的学习或是工作阶段。网学会员整理了Java开源代码-BookListServlet.java的相关内容供大家参考,祝大家在新的一年里工作和学习顺利!
package com.wxpn.tutorial.ec.servlet;
import java.io.IOException;
import java.util.Collection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.wxpn.tutorial.ec.bean.ECBookMgr;
/**
* Servlet implementation class for Servlet: UserListServlet
*/
public class BookListServlet extends javax.servlet.http.HttpServlet implements
javax.servlet.Servlet {
/*
* (non-
Java-doc)
*
* @see javax.servlet.http.HttpServlet#HttpServlet()
*/
public BookListServlet() {
super();
}
/*
* (non-Java-doc)
*
* @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
* HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
response.setHeader("Pragma","No-cache");
response.setHeader("Cache-Control","no-cache");
response.setDateHeader("Expires", 0);
int pagesize = 10;
String page = request.getParameter("page");
ECBookMgr mgr = new ECBookMgr();
int count = mgr.getCount();// 记录总数
int totalPageNum = count / pagesize;// 逻辑页数
// 如果纪录总数除以每页的显示个数,余数大于0,那么
// 逻辑页数应该为商+1
if ((count % pagesize) > 0) {
totalPageNum += 1;
}
if (page == null) {
page = "1";
}
request.setAttribute("totalPageNum", new Integer(totalPageNum));
Collection c = mgr.getAll(pagesize, Integer.parseInt(page));
request.setAttribute("c", c);
try {
request.getRequestDispatcher("/book_store/index.jsp").forward(
request, response);
} catch (Throwable t) {
getServletContext().log(t.getMessage());
}
}
}