DBPool连接池

package java7b.aone.db;


import java.io.IOException;

import snaq.db.ConnectionPoolManager;

public class DBConn {

private static ConnectionPoolManager cpm = null;

private DBConn(){

}

public static ConnectionPoolManager getCpm(){
if( null == cpm){
try {
cpm = ConnectionPoolManager.getInstance("dbpool.properties");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return cpm;
}

public static void release(){
cpm.release();
}



}
//
package java7b.aone.db;



import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class DBDao {


private static Connection conn = null;
private static Statement stmt = null;
private static ResultSet rs = null;
/**
* 获取连接
*/
public static Connection getConn(){

try {
conn = DBConn.getCpm().getConnection("pooltest");

} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return conn;

  }
/**
* 关闭连接
*/
public  void closeConn(){
if( conn != null){
try {
conn.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}


public static void main(String []args){
DBDao.getConn();
}


}