pooltest.java

用java编写的一个连接池的程序

package Pool;

import java.sql.*;
import java.util.Iterator;


public class PoolTest {
	public static void main(String[] args) throws Exception {

String Driver = "com.mysql.jdbc.Driver";
String URL = "jdbc:mysql://localhost/mysql";
String username = "root";
String password = "123";
int minConn=5;
int maxConn=10;
//Class.forName(Driver);
//Connection conn = DriverManager.getConnection(URL, username, password);
//Statement statement = conn.createStatement();
//String str = "select * from mytable";
//ResultSet rs = statement.executeQuery(str);
//while (rs.next()) {
//	System.out.println(rs.getObject("name"));
//}
//System.out.println("ok");
	
	CPool pool=new CPool(Driver,URL,username,password,minConn,maxConn);
	pool.startPool();
	Connection conn=pool.getConnection();
	Statement statement = conn.createStatement();
	String str = "select * from mytable";
	ResultSet rs = statement.executeQuery(str);
	while (rs.next()) {
		System.out.println(rs.getObject("name"));
	}
	
	Iterator iter;
	 iter = (Iterator) pool.getPools().iterator();
	while (iter.hasNext()) {
		PoolConnection pconn = (PoolConnection) iter.next();
		System.out.println(pconn.getCreatedTime());
		System.out.println(pconn.getLastestUseTime());
		System.out.println(pconn.getUsedTime());
		System.out.println(pconn.getStatus());
	}
	 iter = (Iterator) pool.getMonitor().iterator();
	while (iter.hasNext()) {
		PoolConnection pconn = (PoolConnection) iter.next();
		System.out.println(pconn.getCreatedTime());
		System.out.println(pconn.getLastestUseTime());
		System.out.println(pconn.getUsedTime());
		System.out.println(pconn.getStatus());
	}
	}
}