Java如何实现后端分页

工具：myeclipse ，数据库：Oracle ，jar包：classes12.jar

实现的功能：对客户的增删改查，展示客户列表，一页显示十条客户数据，实现分条件查询（根据ID，名称等）

这个小Demo用到了：

1，使用jsp+servlet，工厂模式，代理类

2，后端分页技术

3，ajax前后台交互

代码如下：

/** *客户接口类 */public interface CustomerDAO {/** * @param pojo 客户类 * @return 新增客户 */public boolean doIns(CustomerPOJO pojo);/** * @param customerId  客户id * @return 删除客户 */public boolean doDel(BigDecimal customerId);/** * @param pojo  客户类 * @return 更新客户信息 */public boolean doUpd(CustomerPOJO pojo);/** * @param customerId * @return 根据客户id，名称查询客户所有信息 */public CustomerPOJO findById(BigDecimal cid);/** * @param customerName * @return 根据客户名查询全部信息 */public CustomerPOJO findByName(String cname);/** * 列出所有客户 */public List<CustomerPOJO> findAll(int pageSize, int pageCurrent);/** *查询客户数量 */public int findAllCount();}

接口实现类：

public class CustomerDAOImpl implements CustomerDAO {   Connection conn;   public CustomerDAOImpl(Connection conn){      this.conn = conn;   }   public boolean doIns(CustomerPOJO pojo) {      boolean flag=false;      PreparedStatement pstate = null;      try {         this.conn.setAutoCommit(false);         String sql="insert into customer(customer_id,customer_name,customer_sex,customer_tel,customer_adress,customer_pro_id)values(DH1.nextval,?,?,?,?,?)";         pstate = this.conn.prepareStatement(sql);         pstate.setString(1,pojo.getCustomerName());         pstate.setInt(2,pojo.getCustomerSex());         pstate.setString(3,pojo.getCustomerTel());         pstate.setString(4,pojo.getCustomerAdress());         pstate.setBigDecimal(5,pojo.getCustomerProId());         pstate.execute();         this.conn.commit();         flag = true;      } catch (SQLException e) {         e.printStackTrace();         try {            this.conn.rollback();         } catch (SQLException e1) {            e1.printStackTrace();         }      }finally{         try {            pstate.close();         } catch (SQLException e) {            e.printStackTrace();         }      }      return flag;   }    public boolean doDel(BigDecimal customerId) {//伪删除，使信息不可见，方便误删找回      boolean flag = false;      PreparedStatement pstate = null;      try {         this.conn.setAutoCommit(false);         String sql = "update customer set is_delete=0 wherecustomer_id = ?";         pstate = this.conn.prepareStatement(sql);         pstate.setBigDecimal(1, customerId);         pstate.execute();         this.conn.commit();         flag = true;      } catch (SQLException e) {         e.printStackTrace();         try {            this.conn.rollback();         } catch (Exception e2) {            e2.printStackTrace();         }      } finally{         try {            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return flag;   }    public boolean doUpd(CustomerPOJO pojo) {      boolean flag = false;      PreparedStatement pstate = null;      try {         this.conn.setAutoCommit(false);         String sql = "update customer setcustomer_name=?,password=?,customer_sex=?,customer_tel=?,customer_adress=?,customer_pro_id=?,is_delete=?,role_mark=?where customer_id=?";         pstate = this.conn.prepareStatement(sql);         pstate.setBigDecimal(1,pojo.getCustomerId());         pstate.setString(2,pojo.getCustomerName());         pstate.setString(3,pojo.getPassword());         pstate.setInt(4,pojo.getCustomerSex());         pstate.setString(5,pojo.getCustomerTel());         pstate.setString(6, pojo.getCustomerAdress());         pstate.setBigDecimal(7,pojo.getCustomerProId());         pstate.setInt(8, pojo.getIsDelete());         pstate.setInt(9, pojo.getRoleMark());         pstate.execute();         this.conn.commit();         flag = true;      } catch (Exception e) {         e.printStackTrace();         try {            this.conn.rollback();         } catch (Exception e2) {            e2.printStackTrace();         }      } finally{         try {            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return flag;   }    public CustomerPOJO findById(BigDecimal customerId) {      CustomerPOJO pojo = null;      PreparedStatement pstate = null;      ResultSet res = null;      String sql = "select customer_name, password,customer_sex, customer_tel, customer_adress, customer_pro_id, is_delete, role_markfrom customer where customer_id = ? and is_delete=1";      try {         pstate = this.conn.prepareStatement(sql);         pstate.setBigDecimal(1, customerId);         res = pstate.executeQuery();         while(res.next()){            pojo=new CustomerPOJO(customerId,res.getString(1),res.getString(2),res.getInt(3),res.getString(4),res.getString(5),res.getBigDecimal(6),res.getInt(7),res.getInt(8));                    }      } catch (SQLException e) {         e.printStackTrace();      }finally{         try {            res.close();            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return pojo;   }    public CustomerPOJO findByName(String customerName) {      CustomerPOJO pojo = null;      PreparedStatement pstate = null;      ResultSet res = null;      String sql = "select customer_id, password,customer_sex, customer_tel, customer_adress, customer_pro_id, is_delete,role_mark from customer where customer_name = ? and is_delete=1";      try {         pstate = this.conn.prepareStatement(sql);         pstate.setString(1, customerName);         res = pstate.executeQuery();         while(res.next()){            pojo=newCustomerPOJO(res.getBigDecimal(1),customerName,res.getString(2),res.getInt(3),res.getString(4),res.getString(5),res.getBigDecimal(6),res.getInt(7),res.getInt(8));                    }      } catch (SQLException e) {         e.printStackTrace();      }finally{         try {            res.close();            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return pojo;   }   public List<CustomerPOJO> findAll(int pageSize, int pageCurrent) {      List<CustomerPOJO> list = new ArrayList<CustomerPOJO>();      PreparedStatement pstate = null;      ResultSet res = null;      String sql = "select customer_id, customer_name,password, customer_sex, customer_tel, customer_adress, customer_pro_id,is_delete, role_mark  from " +           "(select customer_id, customer_name,password, customer_sex, customer_tel, customer_adress, customer_pro_id,is_delete, role_mark, rownum as rn from customer)  where rn > ? andrn<=? and is_delete = 1" ;      try {         pstate = this.conn.prepareStatement(sql);         pstate.setInt(1,(pageCurrent-1)*pageSize);         pstate.setInt(2, pageCurrent*pageSize);         res = pstate.executeQuery();         while(res.next()){            CustomerPOJO pojo=newCustomerPOJO(res.getBigDecimal(1),res.getString(2),res.getString(3),res.getInt(4),res.getString(5),res.getString(6),res.getBigDecimal(7),res.getInt(8),res.getInt(9));            list.add(pojo);         }      } catch (SQLException e) {         e.printStackTrace();      }finally{         try {            res.close();            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return list;   }   public int findAllCount() {      int count = 0;      PreparedStatement pstate = null;      ResultSet res = null;      String sql = "select count(customer_id) fromcustomer" ;      try {         pstate = this.conn.prepareStatement(sql);         res = pstate.executeQuery();         while(res.next()){            count = res.getInt(1);         }      } catch (Exception e) {         e.printStackTrace();      } finally{         try {            res.close();            pstate.close();         } catch (Exception e2) {            e2.printStackTrace();         }      }      return count;   }}

代理类：

public class CustomerDAOProxy implements CustomerDAO {Connection conn = null;CustomerDAOImpl impl=null;public CustomerDAOProxy(){try {this.conn=JDBCHelper.getConn();} catch (Exception e) {e.printStackTrace();}this.impl=new CustomerDAOImpl(this.conn);}public boolean doIns(CustomerPOJO pojo) {boolean flag = this.impl.doIns(pojo);this.close();return flag;}public boolean doDel(BigDecimal customerId) {boolean flag = this.impl.doDel(customerId);this.close();return flag;}public boolean doUpd(CustomerPOJO pojo) {boolean flag = this.impl.doUpd(pojo);this.close();return flag;}public CustomerPOJO findById(BigDecimal cid) {CustomerPOJO pojo = this.impl.findById(cid);this.close();return pojo;}public CustomerPOJO findByName(String cname) {CustomerPOJO pojo = this.impl.findByName(cname);this.close();return pojo;}public List<CustomerPOJO> findAll(int pageSize, int pageCurrent) {List<CustomerPOJO> list=this.impl.findAll(pageSize, pageCurrent);this.close();return list;}public int findAllCount() {int count=this.impl.findAllCount();this.close();return count;}public void close(){try {this.conn.close();} catch (Exception e) {e.printStackTrace();}}}

工厂类：

public class CustomerDAOFactory {public static CustomerDAO getDAOInstance(){return new CustomerDAOProxy();}}public class AddCustomer extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {request.setCharacterEncoding("utf-8");String cname = request.getParameter("cname");int csex = Integer.parseInt(request.getParameter("csex"));String ctel = request.getParameter("ctel");String cadress = request.getParameter("cadress");BigDecimal cpid = new BigDecimal(request.getParameter("cpid"));CustomerPOJO pojo = new CustomerPOJO(cname,csex,ctel,cadress,cpid);System.out.println("输出数据："+pojo.toString());boolean flag=CustomerDAOFactory.getDAOInstance().doIns(pojo);PrintWriter out = response.getWriter();StringBuffer sb = new StringBuffer();sb.append(flag);out.print(sb.toString());out.close();}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

Servlet处理类

 CustomerQuery 客户数据查询：

public class CustomerQuery extends HttpServlet {private static final long serialVersionUID = 1225972715083060475L;public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {request.setCharacterEncoding("utf-8");response.setCharacterEncoding("utf-8");response.setContentType("text/html; charset=utf-8");if(request.getParameter("customerId")!=null){//如果ID有输入，显示该ID的客户BigDecimal customerId = new BigDecimal(request.getParameter("customerId"));CustomerPOJO pojo = CustomerDAOFactory.getDAOInstance().findById(customerId);request.setAttribute("pojo", pojo);String str="";if(pojo.getCustomerSex()==1){str="男";}else{str="女";}PrintWriter out = response.getWriter();StringBuffer sb = new StringBuffer();sb.append("<table id='mytable'><tr><th>客户ID</th><th>客户名称</th><th>客户密码</th><th>客户性别</th><th>联系方式</th><th>客户住址</th><th>购买产品id</th><th>操作</th></tr>");sb.append("<tr>" +"<td>"+pojo.getCustomerId()+"</td>" +"<td>"+pojo.getCustomerName()+"</td>" +"<td>"+pojo.getPassword()+"</td>" +"<td>"+str+"</td>" +"<td>"+pojo.getCustomerTel()+"</td>" +"<td>"+pojo.getCustomerAdress()+"</td>" +"<td>"+pojo.getCustomerProId()+"</td>" +"<td><a href='#' onclick='goUpdate("+pojo.getCustomerId()+")'>修改</a>    <a href='#' onclick='goDelete("+pojo.getCustomerId()+")'>删除</a></td>" +"</tr>");sb.append("</table>");out.print(sb.toString());out.close();}else if(request.getParameter("customerName")!=null){//如果名字有输入，显示该姓名的客户String customerName = request.getParameter("customerName");CustomerPOJO pojo = CustomerDAOFactory.getDAOInstance().findByName(customerName);request.setAttribute("pojo", pojo);String str="";if(pojo.getCustomerSex()==1){str="男";}else{str="女";}PrintWriter out = response.getWriter();StringBuffer sb = new StringBuffer();sb.append("<table id='mytable'><tr><th>客户ID</th><th>客户名称</th><th>客户密码</th><th>客户性别</th><th>联系方式</th><th>客户住址</th><th>购买产品id</th><th>操作</th></tr>");sb.append("<tr>" +"<td>"+pojo.getCustomerId()+"</td>" +"<td>"+pojo.getCustomerName()+"</td>" +"<td>"+pojo.getPassword()+"</td>" +"<td>"+str+"</td>" +"<td>"+pojo.getCustomerTel()+"</td>" +"<td>"+pojo.getCustomerAdress()+"</td>" +"<td>"+pojo.getCustomerProId()+"</td>" +"<td><a href='#' onclick='goUpdate("+pojo.getCustomerId()+")'>修改</a>    <a href='#' onclick='goDelete("+pojo.getCustomerId()+")'>删除</a></td>" +"</tr>");sb.append("</table>");out.print(sb.toString());out.close();}else{//ID 和名字都没有输入，显示全部客户列表int pageSize = Integer.parseInt(request.getParameter("pageSize"));//得到一页显示的数据笔数int pageCurrent = Integer.parseInt(request.getParameter("pageCurrent"));//得到要显示哪一页的数据List<CustomerPOJO> list = CustomerDAOFactory.getDAOInstance().findAll(pageSize, pageCurrent);int count=CustomerDAOFactory.getDAOInstance().findAllCount();PrintWriter out = response.getWriter();StringBuffer sb = new StringBuffer();sb.append("<input type='hidden' id='count' value='"+count+"'/>");sb.append("<table id='mytable'><tr><th>客户ID</th><th>客户名称</th><th>客户密码</th><th>客户性别</th><th>联系方式</th><th>客户住址</th><th>购买产品id</th><th>操作</th></tr>");for(CustomerPOJO pojo : list){String str="";if(pojo.getCustomerSex()==1){str="男";}else{str="女";}sb.append("<tr>" +"<td>"+pojo.getCustomerId()+"</td>" +"<td>"+pojo.getCustomerName()+"</td>" +"<td>"+pojo.getPassword()+"</td>" +"<td>"+str+"</td>" +"<td>"+pojo.getCustomerTel()+"</td>" +"<td>"+pojo.getCustomerAdress()+"</td>" +"<td>"+pojo.getCustomerProId()+"</td>" +"<td><a href='#' onclick='goUpdate("+pojo.getCustomerId()+")'>修改</a>    <a href='#' onclick='goDelete("+pojo.getCustomerId()+")'>删除</a></td>" +"</tr>");}sb.append("</table>");sb.append("<input type='button' id='first' value='|<' onclick='query(1)'/>");sb.append("<input type='button' id='up' value='<' onclick='query(2)'/>");sb.append("<input type='button' id='next' value='>' onclick='query(3)'/>");sb.append("<input type='button' id='end' value='>|' onclick='query(4)'/>");sb.append("<span id='showPageMessage'></span>");out.print(sb.toString());out.close();}}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doGet(request,response);}}

CustomerUpd   客户数据更新：

public class CustomerUpd extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {request.setCharacterEncoding("utf-8");BigDecimal customerId = new BigDecimal(request.getParameter("cid"));String customerName = request.getParameter("cname");String password = request.getParameter("cpassword");int customerSex = Integer.parseInt(request.getParameter("csex"));String customerTel = request.getParameter("ctel");String customerAdress = request.getParameter("cadress");BigDecimal customerProId = new BigDecimal(request.getParameter("cpid"));int isDelete=Integer.parseInt(request.getParameter("isDelete"));int roleMark=Integer.parseInt(request.getParameter("roleMark"));CustomerPOJO pojo = new CustomerPOJO(customerId, customerName,password,customerSex,customerTel,customerAdress,customerProId, isDelete, roleMark);System.out.println("输出数据："+pojo.toString());boolean flag = CustomerDAOFactory.getDAOInstance().doUpd(pojo);PrintWriter out = response.getWriter();StringBuffer sb = new StringBuffer();sb.append(flag);out.print(sb.toString());out.close();}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doGet(request, response);}}

DelCustomer   客户数据删除（伪删除，使数据不可见，方便误删找回）

public class DelCustomer extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {PrintWriter out = response.getWriter();BigDecimal customerId = new BigDecimal(request.getParameter("customerId"));boolean flag = CustomerDAOFactory.getDAOInstance().doDel(customerId);System.out.println(flag);out.print(flag);out.close();}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doGet(request, response);}}

FindCustomerById  查询客户，用于更新用户信息

public class FindCustomerById extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {this.doPost(request, response);}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {request.setCharacterEncoding("utf-8");BigDecimal cID = new BigDecimal(request.getParameter("cid"));CustomerPOJO pojo = CustomerDAOFactory.getDAOInstance().findById(cID);request.setAttribute("pojo", pojo);request.getRequestDispatcher("/manager/updateCustomer.jsp").forward(request, response);}}

JDBCHelper 数据库辅助：

public class JDBCHelper {public static final String DRIVER = "oracle.jdbc.driver.OracleDriver";public static final String URL = "jdbc:oracle:thin:@localhost:1521:xxx";public static final String DBNAME = "name";public static final String PASSWORD = "xddd";public static Connection getConn() throws Exception{Class.forName(DRIVER);Connection conn = DriverManager.getConnection(URL, DBNAME, PASSWORD);return conn;}}

AddCustomer.jsp   新增客户页面

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <title>新增客户</title>    <script type="text/javascript" src="<%=path%>/js/jquery-1.8.3.js"></script>  </head>    <body><center><h2>新增客户</h2><hr/><form name = "cus">客户名称：<input type="text" name="cname"/><br/><a style="float:left">客户性别：</a><select name="csex"><option value="0" selected="selected">女</option><option value="1">男</option></select><br/>联系方式：<input type="text" name="ctel"/><br/>客户住址：<input type="text" name="cadress"/><br/>购买产品id：<input type="text" name="cpid"/><br/><input type="button" value="确认" onclick="add()"/><input type="reset" value="重置" /><input type="button" value="返回" onclick="back()"/></form></center>  </body>  <script type="text/javascript">function add(){var cname=cus.cname.value;var csex=cus.csex.value;var ctel=cus.ctel.value;var cadress=cus.cadress.value;var cpid=cus.cpid.value; $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/AddCustomer",{"cname":cname,"csex":csex,"ctel":ctel,"cadress":cadress,"cpid":cpid},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 if(data == "true"){ alert("客户新增成功"); back(); }else{ alert("客户新增失败，请联系系统管理员"); } });});}function back(){opener.location.reload(); //window.dialogArguments.query(0);//刷新之前页面 window.close();//关闭当前页面}</script></html>

queryCustomer.jsp   客户查询删除页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <title>查询客户</title>    <script type="text/javascript" src="<%=path%>/js/jquery-1.8.3.js"></script>  </head>    <body><form name = "que"><fieldset title="查询"><legend><span width="12%" height="25" class="STYLE1"style="color: black;">查询条件</span></legend><input type="text" name="customer"/><input type="button" value="查询客户ID" onclick="queryById(0)"/><input type="button" value="查询客户姓名" onclick="queryByName(0)"/><input type="button" value="显示所有客户资料" onclick="query(0)"/><input type="button" value="新增" onclick="goAdd()"/></fieldset></form><div id="showTable"></div></body><script type="text/javascript">var pageSize = 10;//一页显示的数据笔数var pageCurrent = 1;//显示的页数var allCount = 0;//总共的数据笔数var allPage = 0;//总共数据页数query(0);function query(num){if(num == 1){//第一页pageCurrent = 1;}else if(num == 2){//上一页pageCurrent = pageCurrent -1;}else if(num == 3){//下一页pageCurrent = pageCurrent + 1;}else if(num == 4){//最后一页pageCurrent = allPage;} $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/CustomerQuery",{"pageSize":pageSize,"pageCurrent":pageCurrent},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 $("#showTable").html(data);//显示Servlet返回的内容 controlButton(); });});}function controlButton(){//设置按钮可见与否，停在第一页时不能点击上一页。停在最后一页时，不能点击下一页allCount = $("#count").val();if(allCount%pageSize == 0){allPage = allCount/pageSize}else{allPage = Math.floor(allCount/pageSize) +1;}document.getElementById("first").disabled = false;document.getElementById("up").disabled = false;document.getElementById("next").disabled = false;document.getElementById("end").disabled = false;if(allPage == 1){document.getElementById("first").disabled = true;document.getElementById("up").disabled = true;document.getElementById("next").disabled = true;document.getElementById("end").disabled = true;}else if(pageCurrent == 1){document.getElementById("first").disabled = true;document.getElementById("up").disabled = true;}else if(pageCurrent == allPage){document.getElementById("next").disabled = true;document.getElementById("end").disabled = true;}$("#showPageMessage").html("总共"+allCount+"笔数据，当前显示"+pageCurrent+"页，共"+ allPage+"页");}function goAdd(){var width = window.screen.width ;var height = window.screen.height ;window.open("<%=path%>/manager/addCustomer.jsp","新增客户",'height=400,width=300,top='+(height-450)/2+',left='+(width-300)/2+',toolbar=no,menubar=no,scrollbars=no, resizable=no,location=no, status=no');}function queryById(){var customerId = que.customer.value; $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/CustomerQuery",{"customerId":customerId},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 $("#showTable").html(data);//显示Servlet返回的内容 });});}function queryByName(){var customerName = que.customer.value; $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/CustomerQuery",{"customerName":customerName},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 $("#showTable").html(data);//显示Servlet返回的内容 });});}function goUpdate(customerId){var width = window.screen.width ;var height = window.screen.height ;window.open("<%=path%>/FindCustomerById?cid="+customerId,"修改客户",'height=400,width=300,top='+(height-450)/2+',left='+(width-300)/2+',toolbar=no,menubar=no,scrollbars=no, resizable=no,location=no, status=no');}function goDelete(customerId){if(confirm("确认删除？")){ $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/DelCustomer",{"customerId":customerId},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 if(data == "true"){ alert("删除成功"); query(0); }else{ alert("删除失败，请联系系统管理员"); } });});}}</script></html>

updateCustomer.jsp  更新客户信息界面：

<%@page import="org.jvsun.pojo.CustomerPOJO"%><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%><%String path = request.getContextPath();%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <title>更新客户</title>    <script type="text/javascript" src="<%=path%>/js/jquery-1.8.3.js"></script>  </head>    <body><%--  <%  CustomerPOJO pojo=new CustomerPOJO();  int sex=pojo.getCustomerSex();  System.out.println(sex);  String str="";  if(sex==1){  str="男";  }else{  str="女";  }  %>--%><center><h2>更新客户</h2><hr/><form name = "cus"><input type="hidden" name="cid" value = "${pojo.customerId}"/><br/>客户名称：<input type="text" name="cname" value = "${pojo.customerName}"/><br/>客户密码：<input type="text" name="cpassword" value = "${pojo.password}"/><br/>客户性别：<input type="text" name="csex" value = "${pojo.customerSex}"/><br/>联系方式：<input type="text" name="ctel" value = "${pojo.customerTel}"/><br/>客户住址：<input type="text" name="cadress" value = "${pojo.customerAdress}"/><br/>购买产品id：<input type="text" name="cpid" value = "${pojo.customerProId}"/><br/>客户状态：<input type="text" name="isDelete" value = "${pojo.isDelete}"/><br/>客户标识：<input type="text" name="roleMark" value = "${pojo.roleMark}"/><br/><input type="button" value="确认" onclick="upd()"/><input type="button" value="返回" onclick="back()"/></form></center>  </body>  <script type="text/javascript">function upd(){var cid=cus.cid.value;var cname=cus.cname.value;var cpassword=cus.cpassword.value;var csex=cus.csex.value;var ctel=cus.ctel.value;var cadress=cus.cadress.value;var cpid=cus.cpid.value;var isDelete=cus.isDelete.value;var roleMark=cus.roleMark.value; $(document).ready(function(){ //设置提交的路径，和参数$.post("<%=path%>/CustomerUpd",{"cid":cid,"cname":cname,"cpassword":cpassword,"csex":csex,"ctel":ctel,"cadress":cadress,"cpid":cpid,"isDelete":isDelete,"roleMark":roleMark},function(data){//Servlet执行完之后执行方法，data表示的servlet返回数据内容 if(data == "true"){ alert("客户修改成功"); back(); }else{ alert("客户修改失败，请联系系统管理员"); } });});}function back(){opener.location.reload(); //window.dialogArguments.query(0);//刷新之前页面 window.close();//关闭当前页面}</script></html>

web.xml配置：

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">  <display-name></display-name>  <servlet>    <servlet-name>AddCustomer</servlet-name>    <servlet-class>org.jvsun.servlet.AddCustomer</servlet-class>  </servlet>  <servlet>    <servlet-name>CustomerQuery</servlet-name>    <servlet-class>org.jvsun.servlet.CustomerQuery</servlet-class>  </servlet>  <servlet>    <servlet-name>CustomerUpd</servlet-name>    <servlet-class>org.jvsun.servlet.CustomerUpd</servlet-class>  </servlet>  <servlet>    <servlet-name>DelCustomer</servlet-name>    <servlet-class>org.jvsun.servlet.DelCustomer</servlet-class>  </servlet>  <servlet>    <servlet-name>FindCustomerById</servlet-name>    <servlet-class>org.jvsun.servlet.FindCustomerById</servlet-class>  </servlet>  <servlet-mapping>    <servlet-name>AddCustomer</servlet-name>    <url-pattern>/AddCustomer</url-pattern>  </servlet-mapping>  <servlet-mapping>    <servlet-name>CustomerQuery</servlet-name>    <url-pattern>/CustomerQuery</url-pattern>  </servlet-mapping>  <servlet-mapping>    <servlet-name>CustomerUpd</servlet-name>    <url-pattern>/CustomerUpd</url-pattern>  </servlet-mapping>  <servlet-mapping>    <servlet-name>DelCustomer</servlet-name>    <url-pattern>/DelCustomer</url-pattern>  </servlet-mapping>  <servlet-mapping>    <servlet-name>FindCustomerById</servlet-name>    <url-pattern>/FindCustomerById</url-pattern>  </servlet-mapping></web-app>

好了，所有的代码都展示完了，说这么多 就想知道谁有好的分页工具类能分享一下嘛，以后就能偷个懒了