proxool访问数据库（mysql和oracle）【原】

proxool是什么呢？简单的说就是高效+便捷的数据库访问技术。引用百度百科弄来的原话：

Proxool是一种Java数据库连接池技术。是sourceforge下的一个开源项目,这个项目提供一个健壮、易用的连接池，最为关键的是这个连接池提供监控的功能，方便易用，便于发现连接泄漏的情况。
目前是和DBCP以及C3P0一起，最为常见的三种JDBC连接池技术。
日前，Hibernate官方宣布由于Bug太多不再支持DBCP，而推荐使用 Proxool或C3P0。

使用proxool一共需要2个基本包+1个数据库驱动包

commons-logging-1.1.1.jar

proxool-0.9.0RC2.jar

mysql驱动包：mysql-connector-java-5.0.6-bin.jar

oracle10g驱动包：ojdbc14_g.jar

连接配置文件datasource.properties

注意：后面千万别有多余的空格，我曾经连oracle的时候驱动名后面有空格，一直提示找不到驱动，弄了5个小时才发现原因。

jdbc-0.usepool=true  
jdbc-0.proxool.alias=mysql  
jdbc-0.proxool.driver-class=com.mysql.jdbc.Driver  
jdbc-0.proxool.driver-url=jdbc:mysql://localhost:3306/test?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8  
jdbc-0.user=root  
jdbc-0.password=root  
jdbc-0.proxool.maximum-connection-count=10  
jdbc-0.proxool.minimum-connection-count=1  
jdbc-0.proxool.house-keeping-test-sql=select current_timestamp  
  
#jdbc-1.usepool=true  
#jdbc-1.proxool.alias=oracle  
#jdbc-1.proxool.driver-class=oracle.jdbc.driver.OracleDriver  
#jdbc-1.proxool.driver-url=dbc:oracle:thin:@localhost:xe  
#jdbc-1.user=root  
#jdbc-1.password=root  
#jdbc-1.proxool.maximum-connection-count=10  
#jdbc-1.proxool.minimum-connection-count=1  
#jdbc-1.proxool.house-keeping-test-sql=select sysdate from dual

数据库访问服务类DataService.java

package mainCenter;

import java.sql.*;

/**
 * Created by IntelliJ IDEA.
 * User: wnj
 * Date: 2010-11-26
 * Time: 13:48:45
 * To change this template use File | Settings | File Templates.
 */
public class DataService {
    private static final ThreadLocal<Connection> _conn = new ThreadLocal<Connection>();

    public static int save(String msg){
        Connection con=null;
        PreparedStatement pst=null;
        try{
            con=getConnection();
            pst=con.prepareStatement("insert into LOG4J(`message`) values (?)");
            int index=1;
            pst.setString(index++, msg == null? "":msg);
            
            return pst.executeUpdate();
        }catch(Throwable th){
            th.printStackTrace();
        }finally{
            try{
                if(pst!=null){
                    pst.close();
                }
                clearAll();
            }catch(Throwable th){
                th.printStackTrace();
            }
        }
        return -1;
    }

    public static String getCityId(String message){
        Connection con=null;
        PreparedStatement pst=null;
        ResultSet set = null;
        try{
            con=getConnection();
            pst=con.prepareStatement("select message from LOG4J where message=?");
            int index=1;
            pst.setString(index++, message);

            set = pst.executeQuery();
            set.next();
            return set.getString("message");
        }catch(Throwable th){
            th.printStackTrace();
        }finally{
            try{
                if(set!=null){
                    set.close();
                }
                if(pst!=null){
                    pst.close();
                }
                clearAll();
            }catch(Throwable th){
                th.printStackTrace();
            }
        }
        return null;
    }

    private static Connection getConnection() throws SQLException {
        Connection conn = _conn.get();
        if(conn == null){
            conn = DriverManager.getConnection("proxool.mysql");//这句是重点，这样就能获取到连接所需的connect对象了。
            _conn.set(conn);
        }
        return conn;
    }

    private static void clearAll() throws SQLException{
       closeConn();
    }

    private static void closeConn() throws SQLException{
		Connection conn = _conn.get();
		_conn.set(null);
		if (conn != null) {
            if (!conn.isClosed()) {
    			conn.close();
            }
		}
	}
}

程序入口MainCenter.java

package mainCenter;

import org.logicalcobwebs.proxool.configuration.PropertyConfigurator;

import java.util.Properties;

/**
 * Created by IntelliJ IDEA.
 * User: Administrator
 * Date: 2011-7-11
 * Time: 14:11:16
 * To change this template use File | Settings | File Templates.
 */
public class MainCenter {
    public static void main(String[] args) throws Exception
        //程序运行之前，先要加载配置文件
        Properties dbProps = new Properties();
        dbProps.load(MainCenter.class.getResourceAsStream("/datasource.properties"));
        PropertyConfigurator.configure(dbProps);

        DataService.save("message1");
        DataService.save("message2");
        String msg = DataService.getCityId("message1");
        System.out.println(msg);
    }
}

另外，查了好久，都没弄懂proxool怎么读，希望达人指点指点~