Web 应用程序 [] 似乎启动了一个名为 [Abandoned connection cleanup thread] com.mysql.jdbc.AbandonedConnectionCleanupThread 的线程

and the OP is right the answer of "don't worry about it" won't be sufficient. This warning bothers me because it may give me some future persistence problems and that worries me a lot, I tried the code the OP has written but I'm having a problem what Libraries should I use to make this code work. This is what I got sor far..

import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Enumeration;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
import org.hibernate.annotations.common.util.impl.LoggerFactory;
import com.mysql.jdbc.AbandonedConnectionCleanupThread;
@WebListener
public class ContextFinalizer implements ServletContextListener {

private static final Logger LOGGER = LoggerFactory.getLogger(ContextFinalizer.class);

public void contextInitialized(ServletContextEvent sce) {
}

public void contextDestroyed(ServletContextEvent sce) {
    Enumeration<Driver> drivers = DriverManager.getDrivers();
    Driver d = null;
    while (drivers.hasMoreElements()) {
        try {
            d = drivers.nextElement();
            DriverManager.deregisterDriver(d);
            LOGGER.warn(String.format("Driver %s deregistered", d));
        }
        catch (SQLException ex) {
            LOGGER.warn(String.format("Error deregistering driver %s", d), ex);
        }
    }
    try {
        AbandonedConnectionCleanupThread.shutdown();
    }
    catch (InterruptedException e) {
        logger.warn("SEVERE problem cleaning up: " + e.getMessage());
        e.printStackTrace();
    }
  }
}

我只想知道我需要什么库，或者如果我使用正确的库来正确实现这一点，我什至不知道我应该使用什么 Logger，谢谢您的帮助，