dbcp的销毁

使用commons-dbcp-1.2.2.jar的DataSource，发现每次动态编译后连接池中的连接不会释放，新的连接池建立有mssql多出一组连接，只有重新启动tomcat或weblogic才可以释放。

package aaplan.dbutil;

import java.io.InputStream;
import java.util.Properties;

import java.sql.*;

import javax.sql.DataSource;

import org.apache.commons.dbcp.BasicDataSourceFactory;

public class JdbcUtil {

    private static  DataSource dataSource=null;
    /**
     * @param args
     */

    public static Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }
    public  static DataSource getDataSource() {
        return dataSource;
    }
    public static void  release()  {
        if(dataSource !=null){
            try {
                ((org.apache.commons.dbcp.BasicDataSource)dataSource).close();
            } catch (SQLException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

        }
    }
    static{
        try{
        Properties properties=new Properties();
        InputStream inputStream= JdbcUtil.class.getClassLoader().getResourceAsStream("dbcp.properties");
        properties.load(inputStream);
        inputStream.close();
        dataSource =BasicDataSourceFactory.createDataSource(properties);

        System.out.println(dataSource);
        }catch(Exception e){
          e.printStackTrace();
          throw new RuntimeException("JdbcUtil Init Error!");    

        }

    }

}

package aaplan.dbutil;

import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

/**
 * Application Lifecycle Listener implementation class DataSorceMgrListener
 *
 */
public class DataSorceMgrListener implements ServletContextListener {

    /**
     * Default constructor.
     */
    public DataSorceMgrListener() {
        // TODO Auto-generated constructor stub
    }

    /**
     * @see ServletContextListener#contextInitialized(ServletContextEvent)
     */
    public void contextInitialized(ServletContextEvent arg0) {
        // TODO Auto-generated method stub
        System.out.println("Init context!");
        JdbcUtil.getDataSource();
    }

    /**
     * @see ServletContextListener#contextDestroyed(ServletContextEvent)
     */
    public void contextDestroyed(ServletContextEvent arg0) {
        System.out.println("Destoryed Context!");
        JdbcUtil.release();
    }

}

解决，写了个ServerContextListener,在里面的Destroyed中人工释放

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