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!");    
        
        }
        
    }

}

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