Help using connnection pool in JSP!!

Question

Dear Users,
I am using a JSP - MS Access application which uses Tomcat as the web server and IDS JDBC Driver.
The JSP application uses a Java class called ResourceManager which I have created and handles all the update/search queries on the database. Just to get an idea , these are the first few lines of my ResourceManager class:
public class ResourceManager {
static Connection conn = null;
static String DB_URL = "jdbc:ids://localhost:12/conn?dsn='ttdoverIDS'";
static String DB_USERNAME = "";
static String DB_PASSWORD = "";
static {
     try {
     Class.forName( "ids.sql.IDSDriver").newInstance();
     conn = DriverManager.getConnection(DB_URL, null);
}catch (Exception e) {
     e.printStackTrace();
What is happenening is that everytime the user interacts with the database a new connection is created. And that is a probable reason why the application slows down after about 30 mins of extensive use by 8-9 concurrent users.
I want to know how to use connection pooling instead of DriverManager class. Can I modify my ResourceManager class to connect using ConnectionPool instead of DriverManager?
Any help would be appreciated.
m_stan

Answer 1

1) In the Java SDK, there's no such thing as a ConnectionPool class. Maybe you can find one on the net or build your own (it's really not that difficult).
2) MS-Access is not exactly a high-performance, concurrent-access database, so don't expect a lot from it.
3) What kind of computer are you using to run this application? 8 users may be a lot for a small system.
4) Even if you are creating one connection at a time, make sure you are closing every one of them right after executing the query/update. Maybe the DB is clogged with connections left open.