jsp分页，显示上一页，下一页，首页，末页，和数据页“1,2,3,4,……”

package com.handson.book.Server; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.handson.book.bean.BookBean; import com.handson.book.bo.BookBo; import com.handson.book.util.NextAndUp; public class BookServer extends HttpServlet { static BookBean book = new BookBean(); public BookServer() { super(); } public void destroy() { super.destroy(); // Just puts "destroy" string in log // Put your code here } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request,response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("UTF-8"); response.setContentType("text/html;charset=UTF-8"); String funNo = request.getParameter("funNo"); String page = request.getParameter("page");; List list = null; BookBo bo = new BookBo(); if("all".equals(funNo)){ list = bo.getAllList('a'); }else if("next".equals(funNo)){ list = bo.getAllList('n'); }else if("up".equals(funNo)){ list = bo.getAllList('u'); }else if("end".equals(funNo)){ list = bo.getAllList('e'); }else if("update".equals(funNo)){ int bookID = Integer.parseInt(request.getParameter("id")); int pIndex = Integer.parseInt(request.getParameter("page")); book = bo.getBook(bookID); request.setAttribute("book", book); request.setAttribute("pIndex", pIndex); request.getRequestDispatcher("/update.jsp").forward(request, response); return; }else if("sureUpdate".equals(funNo)){ int pIndex = Integer.parseInt(request.getParameter("page")); this.getBook(request, response); request.getRequestDispatcher("/BookServer?funNo=num&page="+pIndex).forward(request, response); return; }else if("delete".equals(funNo)){ book = bo.getBook(Integer.parseInt(request.getParameter("page"))); bo.deleteBook(book); request.getRequestDispatcher("/BookServer?funNo=all").forward(request, response); return; }else if("deleteAll".equals(funNo)){ String[] str = request.getParameterValues("bk"); for(int i= 0 ; i < str.length; i++){ book = bo.getBook(Integer.parseInt(str[i])); bo.deleteBook(book); } request.getRequestDispatcher("/BookServer?funNo=all").forward(request, response); return; }else if("num".equals(funNo)){ int pageInt = Integer.parseInt(page); NextAndUp.order = pageInt; NextAndUp.end = pageInt * 2; NextAndUp.start = (pageInt - 1)*2; list = bo.getOnlyBook(pageInt); } if(page!=null){ request.setAttribute("page", Integer.parseInt(page)); }else{ request.setAttribute("page",NextAndUp.order); } int index = 1; int max = 3; int pageIndex = 0; int maxPage = NextAndUp.orderCount; if(page != null){ pageIndex = Integer.parseInt(page); }else{ pageIndex = NextAndUp.order; } if(pageIndex%10 != 0 && pageIndex/10 == 0 && pageIndex < maxPage){ if(pageIndex < 3 ){ max = 3; }else{ max = pageIndex + 1; } index = 1; }else{ if(pageIndex < maxPage){ if(pageIndex < pageIndex /10 * 10 + 1){ max = pageIndex + 1; }else{ max = pageIndex + 1; } index = pageIndex / 10 * 10 -1; }else if(pageIndex >= maxPage){ max = maxPage; index = maxPage - 2; } } request.setAttribute("index", index); request.setAttribute("max", max); request.setAttribute("count", NextAndUp.orderCount); //灏嗘�婚〉鏁版斁鍏ュ埌request涓� request.setAttribute("list", list); request.getRequestDispatcher("/MyJsp.jsp").forward(request, response); } public void init() throws ServletException { // Put your code here } public void getBook(HttpServletRequest request,HttpServletResponse response){ book.setBookID(Integer.parseInt(request.getParameter("id"))); book.setBookName(request.getParameter("bookName")); book.setBookImg(request.getParameter("bookUser")); new BookBo().UpdateBook(book); } }