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Simple paging example implemented by JSP

高洛峰

Dec 29, 2016 pm 03:19 PM

The example in this article describes a simple paging example implemented by JSP. Share it with everyone for your reference, the details are as follows:

<%@ page language="java" import="java.util.*" contentType="text/html; charset=gbk"%>
<%@ page import="com.yx.page.db.*"%>
<%@ page import="java.sql.*" %>
<html>
 <head>
  <title>My JSP &#39;page01.jsp&#39; starting page</title>
 </head>
 <body>
 <center>
 <%! 
 final String jspURL = "page04.jsp"; 
 %>
 <%
 // 定义如下分页变量
 // 1、定义每页要显示的记录数
 int lineSize = 10 ;
 // 2、定义一个当前是第几页
 int currentPage = 1 ;
 //接受传过来的当前页
 %>
 <%
 try{
  currentPage = Integer.parseInt(request.getParameter("cp"));
 }catch(Exception e){
  e.printStackTrace();
 }
 %>
 <%
 Connection conn = null;
 PreparedStatement pStmt = null;
 ResultSet rs = null;
 GetConnection getConnection = new GetConnection(); //自定义数据库连接操作 DAO
 %>
 <script language="javascript">
 function openPage(curpage){
  document.form1.cp.value=curpage;
  document.form1.submit();
 }
 </script>
 <form action="<%=jspURL%>" method="post" name="form1">
 <input name="button1" type="button" value="首页" onClick="openPage(1)">
 <input name="button2" type="button" value="上一页" onClick="openPage(<%=currentPage-1%>)">
 <input name="button3" type="button" value="下一页" onClick="openPage(<%=currentPage+1%>)">
 <input name="button4" type="button" value="尾页">
 <input name="cp" type="hidden" value="" />
 </form>
 <table width="80%" border="1">
 <%
 try{
 String strSql= "select * from person";
 pStmt = getConnection.getPreStatement(strSql);
 rs = pStmt.executeQuery();
 %>
 <tr>
 <td align="center">编号</td>
 <td align="center">登陆名称</td>
 <td align="center">姓名</td>
 <td align="center">密码</td>
 <td colspan="2" align="center">操作</td>
 </tr>
 <%
 for(int x=0; x<(currentPage-1)*lineSize; x++){
  rs.next();
 }
 for(int x=0; x<lineSize; x++){
  if(rs.next()){
  int id = rs.getInt(1);
  String uid = rs.getString(2);
  String name = rs.getString(3);
  String pass = rs.getString(4);
 %>
 <tr>
  <td><%=id%></td>
  <td><%=uid%></td>
  <td><%=name%></td>
  <td><%=pass%></td>
  <td>更改</td>
  <td>删除</td>
 </tr>
 <%
  }
 }
 }catch(Exception e){
 %>
 <h4>系统有错误</h4>
 <%
 e.printStackTrace();
 }finally{
 getConnection.getAllClose(conn,pStmt,rs);
 }
 %>
 </table>
 </center>
 </body>
</html>

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