一、运行前准备
下载了mysql的jdbc驱动(一个jar文件)并加载在CLASSPATH(方法见《JAVA/JSP学习系列之一(JDK安装) 》)
(如果找不到,请从本站下载)
建一个MySQL数据库test
数据库中有一个表:note,字段为:name(varchar)
二、下载,安装
java.sql.Statement sqlStmt; //SQL语句对象
java.sql.ResultSet sqlRst; //结果集对象
java.lang.String strCon; //数据库连接字符串
java.lang.String strSQL; //SQL语句
int intPageSize; //一页显示的记录数
int intRowCount; //记录总数
int intPageCount; //总页数
int intPage; //待显示页码
java.lang.String strPage;
int i;
//设置一页显示的记录数
intPageSize = 2;
//取得待显示页码
strPage = request.getParameter("page");
if(strPage==null){
//表明在QueryString中没有page这一个参数,此时显示第一页数据
intPage = 1;
} else{
//将字符串转换成整型
intPage = java.lang.Integer.parseInt(strPage);
if(intPage
}
//装载JDBC驱动程序
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
//连接数据库
sqlCon= java.sql.DriverManager.getConnection("jdbc:mysql://localhost/test");
//创建语句对象
sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY); //执行SQL语句
strSQL = "select name from note";
//执行SQL语句并获取结果集
sqlRst = sqlStmt.executeQuery(strSQL);
//获取记录总数
sqlRst.last();
intRowCount = sqlRst.getRow();
//记算总页数
intPageCount = (intRowCount+intPageSize-1) / intPageSize;
//调整待显示的页码
if(intPage>intPageCount) intPage = intPageCount;
%>

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