修改context..xml文件

type="javax.sql.DataSource"
driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://127.0.0.1:3306/hib"
username="scott"
password="123456"
maxActive="20"
maxIdle="10"
maxWait="-1"/>

javabean:

package comm.db;
import java.sql.*;

import javax.naming.InitialContext;
import javax.sql.*;
public class dbpool {
public Connection getConn(){
DataSource ds = null;
Connection conn=null;
try{
InitialContext ctx=new InitialContext();
ds=(DataSource)ctx.lookup("java:comp/env/jdbc/jsf");
conn = ds.getConnection();
}
catch(Exception ex){
ex.printStackTrace();
}
return conn;
}
}

[@more@]