进程问题

今天上午到中午我一直在调试程序。
下午管数据库的人找我说，100个进程里有80个是我开的。
不知道是什么原因，请大家帮我分析一下。在这里先谢了。
数据库连接文件如下：

package test;

import java.io.PrintStream;
import java.sql.*;

public class ConnOracle
{

String serverName;
String sDBDriver;
String sConnStr;
Connection connect;
ResultSet rs;

public ConnOracle()
{
serverName = "localhost";
sDBDriver = "oracle.jdbc.driver.OracleDriver";
sConnStr = "jdbc:oracle:thin:@" + serverName + ":1521:zyms8";
connect = null;
rs = null;
try
{
Class.forName(sDBDriver);
}
catch(ClassNotFoundException classnotfoundexception)
{
System.err.println(classnotfoundexception.getMessage());
}
}

public ResultSet executeQuery(String s)
{
try
{
connect = DriverManager.getConnection(sConnStr, "scott", "tiger");
Statement statement = connect.createStatement(1004, 1007);
rs = statement.executeQuery(s);
}
catch(SQLException sqlexception)
{
System.err.println(sqlexception.getMessage());
}
return rs;
}

public int executeUpdate(String s)
{
int i = 0;
try
{
connect = DriverManager.getConnection(sConnStr, "scott", "tiger");
Statement statement = connect.createStatement(1004, 1007);
i = statement.executeUpdate(s);
}
catch(SQLException sqlexception)
{
System.err.println(sqlexception.getMessage());
}
return i;
}
}
引用的文件头：
<%@ page contentType="text/html;charset=GBK" %>
<%@ page language="java" import="java.sql.*"%>
<%@ page import="java.lang.Math.*" %>
<%@ page import="java.util.*" %>
<jsp:useBean id="conn" scope="page" class="test.ConnOracle"/>
<%@ include file="/public/checkvalidadmin.jsp"%>