Home Database Mysql Tutorial JSP数据库操数据分页显示_MySQL

JSP数据库操数据分页显示_MySQL

Jun 01, 2016 pm 02:10 PM
object database show Record statement

  

//变量声明
java.sql.Connection sqlCon; //数据库连接对象
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
java.sql.DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//设置数据库连接字符串
strCon = "jdbc:oracle:thin:@linux:1521:ora4cweb";
//连接数据库
sqlCon = java.sql.DriverManager.getConnection(strCon,"hzq","hzq");
//创建一个可以滚动的只读的SQL语句对象
sqlStmt = sqlCon.createStatement(java.sql.ResultSet.TYPE_SCROLL_INSENSITIVE,java.sql.ResultSet.CONCUR_READ_ONLY);
//准备SQL语句
strSQL = "select name,age from test";
//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;
%>



JSP数据库操作例程 - 数据分页显示 - JDBC 2.0 - Oracle







if(intPageCount>0){
//将记录指针定位到待显示页的第一条记录上
sqlRst.absolute((intPage-1) * intPageSize + 1);
//显示数据
i = 0;
while(i%>




sqlRst.next();
i++;
}
}
%>
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//关闭结果集
sqlRst.close();
//关闭SQL语句对象
sqlStmt.close();
//关闭数据库
sqlCon.close();
%> 
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