用PrepareStatement方法的纯JSP版分页（Mysql数据库）

soyizi · 发表于 2016-10-22 08:48:31

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

<title>JSP版分页</title>

</head>

<body>

<%! int pagecount;  // pagecount为总页数

int  pagesize=3;%>  <%-- pagesize为每页显示的记录数 --%>

<%  Connection  con;

Class.forName("com.mysql.jdbc.Driver");

con=DriverManager.getConnection("jdbc:mysql://localhost/qinshi","root","007");

String  sql="select  * from wowo order by  id";

PreparedStatement ps=con.prepareStatement(sql,ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_READ_ONLY);

ResultSet  rs=ps.executeQuery();

rs.last();

int  count=rs.getRow();  //count为记录总数

int i=0;

int pageI=1 ;

pagecount=(count%pagesize==0)?(count/pagesize):(count/pagesize+1);

%>

<%

String pages=request.getParameter("nowpage");

if(pages==null)

pages="1";

try{

      pageI = Integer.parseInt(pages);

}

catch (NumberFormatException e){

   pageI = 1;

}

if(pageI<0||pageI>pagecount)

{ pageI=pagecount;}

int position=(pageI-1)*pagesize +1;

rs.absolute(position);

%>

<table border="1"  cellpadding="0" cellspacing="0"><tr>

<th>id</th>

<th>users</th> </tr>

<%

while(i<pagesize&&!rs.isAfterLast()){

%>

<tr>

<td><%=rs.getString(1)%></td>

<td><%=rs.getString(2)%></td>

</tr>

<%rs.next();i++;}%>

</table>

<form method="get" action="">

<table>

<tr>

<td><a href="fenye.jsp?nowpage=1">第一页</a></td>

<td><% if(pageI<pagecount){%>

<a href="fenye.jsp?nowpage=<%=pageI+1 %>">下一页</a><%}%></td>

<td><% if(pageI>1){%>

<a href="fenye.jsp?nowpage=<%=pageI-1 %>">上一页</a><%}%></td>

<td><a href="fenye.jsp?nowpage=<%=pagecount %>">尾页</a></td>

<td><input type="text" name="nowpage" /></td>

<td><input type="submit" name="submit"  value="go"/></td></tr>

</table>

</form>

</body>

</html>

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[经验分享] 用PrepareStatement方法的纯JSP版分页（Mysql数据库）

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