jsp

index

.table {

float: left;

}

.se{

float: left;

margin-left: 170px;

margin-top: 50px;

}

th,td{

text-align:center;

}

.caozuo{

float: right;

margin-top: 50px;

margin-right: 150px;

}

function delecte(id) {

if (confirm("您确定要删除吗？")){

location.href="${pageContext.request.contextPath}/userDelServlet?id="+id;

}

}

function update(id) {

location.href="${pageContext.request.contextPath}/userIdSelectServlet?id="+id;

}

window.οnlοad=function () {

//获取按钮id

document.getElementById("delSelected").οnclick=function () {

if(confirm("您确定要删除选中数据吗？")){

var flag=false;

var uids = document.getElementsByName("uid");

for(var i=1;i

//判断是否选中数据，若数据有选中改变标识进行提交，若标识未改变不进行表单提交

if(uids[i].checked){

flag=true;

break;

}

}

if(flag){

//进行表单的提交，获取表单id

var form = document.getElementById("form");

//提交表单

form.submit();

}

}

}

//给第一个选择框添加点击事件，设置全选全消功能

document.getElementById("firstcb").οnclick=function () {

var uids = document.getElementsByName("uid");

for(var i=0;i

uids[i].checked=this.checked

}

}

}

JavaBean

import java.util.List;

public class PageBean1 {

private int totalPage;//总页数

private int totalCount;//总条数

private int currentPage;//当前页

private int rows;//每页展示的条数

private List listDate;//每页展示的数据

public int getTotalPage() {

return totalPage;

}

public void setTotalPage(int totalPage) {

this.totalPage = totalPage;

}

public int getTotalCount() {

return totalCount;

}

public void setTotalCount(int totalCount) {

this.totalCount = totalCount;

}

public int getCurrentPage() {

return currentPage;

}

public void setCurrentPage(int currentPage) {

this.currentPage = currentPage;

}

public int getRows() {

return rows;

}

public void setRows(int rows) {

this.rows = rows;

}

public List getListDate() {

return listDate;

}

public void setListDate(List listDate) {

this.listDate = listDate;

}

}

Dao

import com.fpf.bean.PageBean;

import com.fpf.bean.PageBean1;

import com.fpf.bean.User;

import com.fpf.face.PageDao;

import com.fpf.util.JDBCUtil;

import org.springframework.jdbc.core.BeanPropertyRowMapper;

import org.springframework.jdbc.core.JdbcTemplate;

import java.util.List;

public class PageDaoImp implements PageDao{

private JdbcTemplate template=new JdbcTemplate(JDBCUtil.getDataSource());

@Override

public int tatolCount() {

String sql="select count(*) from user";

return template.queryForObject(sql,Integer.class);

}

@Override

public List pageList(int start, int rows) {

String sql="select * from user limit ?,?";

return template.query(sql,new BeanPropertyRowMapper(User.class),start,rows);

}

}

Service

import com.fpf.bean.PageBean1;

import com.fpf.bean.User;

import com.fpf.dao.PageDaoImp;

import com.fpf.face.PageService;

import java.util.List;

public class PageServiceImp implements PageService{

PageDaoImp pageDaoImp=new PageDaoImp();

@Override

public int totalCount() {

return 0;

}

@Override

public PageBean1 pageList(String _currentPage, String _rows) {

//定义PageBean1对象

PageBean1pb=new PageBean1();

//获取表中数据总条数

int totalCount = pageDaoImp.tatolCount();

pb.setTotalCount(totalCount);

//判断传入的当前页数据是否为空，若为空显示第一页

if(_currentPage==null||"".equals(_currentPage)){

_currentPage="1";

}

//判断传入的每页的条数，若为空赋一个值

if(_rows==null||"".equals(_rows)){

_rows="2";

}

//判断currentPage是否小于1

//进行数据转换

int currentPage = Integer.parseInt(_currentPage);

int rows = Integer.parseInt(_rows);

if(currentPage<=1){

currentPage=1;

}

pb.setRows(rows);

//计算总页数

int pageCount=(totalCount%rows)==0 ? (totalCount/rows):(totalCount/rows)+1;

//计算当前索引

pb.setTotalPage(pageCount);

if(currentPage>=pageCount){

currentPage=pageCount;

}

pb.setCurrentPage(currentPage);

int index=(currentPage-1)*rows;

List userList = pageDaoImp.pageList(index, rows);

pb.setListDate(userList);

return pb;

}

}

Servlet

import com.fpf.bean.PageBean1;

import com.fpf.bean.User;

import com.fpf.service.PageServiceImp;

import javax.servlet.ServletException;

import javax.servlet.annotation.WebServlet;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.io.IOException;

@WebServlet("/pageServlet")

public class PageServlet extends HttpServlet {

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

request.setCharacterEncoding("utf-8");

String currentPage = request.getParameter("currentPage");

String rows = request.getParameter("rows");

PageServiceImp pageServiceImp=new PageServiceImp();

PageBean1 pb = pageServiceImp.pageList(currentPage, rows);

request.setAttribute("pb",pb);

request.getRequestDispatcher("/index1.jsp").forward(request,response);

}

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

this.doPost(request, response);

}

}