JVM optimization of load driver forName and db getConnection

Question

I am working on a site that already had these jsp pages. There is very little java code to the site.
Almost everything is done through the jsp page plus one main java class to store state data.
The site's jsp page may do up to 7 queries on the database. On each query, the statements are these:
Driver DriverDB = (Driver)Class.forName(db_DRIVER).newInstance();
Connection ConnDB = DriverManager.getConnection(db_STRING,db_USERNAME,db_PASSWORD);
PreparedStatement StatementDB = ConnDB.prepareStatement("SELECT * from table");
ResultSet resultDB = StatementDB.executeQuery();My 2 questions are:
Does the forName call to load the driver get optimized out? Clearly the driver need only load once.
Does the getConnection reuse the same connection that was done in the previous call on the page?
There are some performance problems and I'm wondering if I should try to clean the code up or if the jvm
does it for me through optimization. It's running on Tomcat 5.5.x. and JVM 5.x.
Thanks for any insight.

Answer 1

import java.sql.*;
public class MyJDBC{
     public MyJDBC(){
     public static void main(String args[]){
          System.out.println("Testing JDBC COnnection...");
          try{
               Class.forName("com.mysql.jdbc.Driver").newInstance()
               java.sql.Connection conn;
conn =
=
DriverManager.getConnection("jdbc:mysql://localhost/bh
c?user=dave&password=dave");
          } catch(Exception e){
               System.out.println("Error" + e.toString());
}Try this when you initialize your connection (conn) :
Connection conn;
conn = Drivermanager.getConnection(
"jdbc:mysql://localhost/blc",
"dave", // username
"dave" // password
but still include everything else... I think it may just be a problem with your formatting.