<%@ page contentType="text/html;charset=8859_1" %><%//變量聲明java.sql.Connection sqlCon; //數據庫連接對象java.sql.Statement sqlStmt; //SQL語句對象java.sql.ResultSet sqlRst; //結果集對象java.lang.String strCon; //數據庫連接字符串java.lang.String strSQL; //SQL語句int intPageSize; //一頁顯示的記錄數int intRowCount; //記錄總數int intPageCount; //總頁數int intPage; //待顯示頁碼java.lang.String strPage;int i;//設置一頁顯示的記錄數intPageSize = 2;//取得待顯示頁碼strPage = request.getParameter("page");
if(strPage==null){//表明在QueryString中沒有page這一個參數，此時顯示第一頁數據
intPage = 1;
}else{//將字符串轉換成整型intPage = java.lang.Integer.parseInt(strPage);if(intPage<1) intPage = 1;}//裝載JDBC驅動程序java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());//設置數據庫連接字符串strCon = "jdbc:oracle:thin:@linux:1521:ora4cweb";//連接數據庫sqlCon = java.sql.DriverManager.getConnection(strCon,"hzq","hzq");//創建一個可以滾動的只讀的SQL語句對象sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);//準備SQL語句strSQL = "select name,age from test";//執行SQL語句並獲取結果集sqlRst = sqlStmt.executeQuery(strSQL);//獲取記錄總數sqlRst.last();intRowCount = sqlRst.getRow();//記算總頁數intPageCount = (intRowCount+intPageSize-1) / intPageSize;//調整待顯示的頁碼if(intPage>intPageCount) intPage = intPageCount;%><html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>JSP數據庫操作例程 - 數據分頁顯示 - JDBC 2.0 - Oracle</title></head><body><table border="1" cellspacing="0" cellpadding="0"><tr><th>姓名</th><th>年齡</th></tr><%if(intPageCount>0){//將記錄指針定位到待顯示頁的第一條記錄上sqlRst.absolute((intPage-1) * intPageSize + 1);//顯示數據i = 0;
while(i<intPageSize && !sqlRst.isAfterLast()){
%><tr><td><%=sqlRst.getString(1)%></td><td><%=sqlRst.getString(2)%></td></tr><%sqlRst.next();i++;
}}%></table>第<%=intPage%>頁 共<%=intPageCount%>頁 <%if(intPage<intPageCount){%><a href="jdbc20-oracle.jsp?page=<%=intPage+1%>">下一頁</a><%}%> <%if(intPage>1){%><a href="jdbc20-oracle.jsp?page=<%=intPage-1%>">上一頁</a><%}%></body></html><%//關閉結果集sqlRst.close();//關閉SQL語句對象sqlStmt.close();//關閉數據庫sqlCon.close();%>