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oracle分页显示的servlet例子——相比mysql简单多了，哈哈！

2011-08-29 10:33 561 查看

<%@ page language="java" import="java.sql.*" pageEncoding="utf-8"%>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

</head>

<body>

<%

int pageCount = 1;//总页数,默认为1

int pageSize = 2;//每页显示多少条记录

int rowCount = 1;//总共有多少条记录,默认为1

String temp = request.getParameter("pageNow");

int pageNow = 1;

if(temp!=null){

pageNow = Integer.parseInt(temp);

}

else{

pageNow = 1;

}

Class.forName("oracle.jdbc.driver.OracleDriver");

Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:ORACLE","scott","tiger");

Statement stmt = conn.createStatement();

ResultSet rs = stmt.executeQuery("select a2.* from(select a1.*,rownum rn from(select * from emp) a1 where rownum<="+(pageSize+(pageNow-1)*pageSize)+")a2 where rn>="+(1+(pageNow-1)*pageSize)+"");

while(rs.next()){

%>

姓名：<%=rs.getString(2) %><br>

<%

}

rs = stmt.executeQuery("select count(1) from emp");

if(rs.next())

{

rowCount = Integer.parseInt(rs.getString(1));

}

out.println("<br>总记录数"+rowCount+"<br>");

pageCount = (rowCount/pageSize==0) ?(rowCount/pageSize):(rowCount/pageSize+1);

out.println("<br>总页码数"+pageCount+"<br>");

%>

当前第<select name="11" id="11" disabled=true >

<%

%>

<option value="+<%=pageNow %>+"><%=pageNow %></option>

<%

%>

</select>/总共[<%=pageCount %>]页

<%

for(int i=1;i<=pageCount;i++){

%>

[<a href='page.jsp?pageNow=<%=i %>'><%=i %></a>]

<%

}

stmt.close();

conn.close();

%>

</body>

</html>

PS：还有个小小的BUG，就是会多出一页，最后一页会出现没数据的情况。

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