Connection error with mysql

Question

hi,
i'm using j2sdk1.4.2 and mysql 3.x, and i'm having problems with the connection of these two. i used the latest connector which is mysql-connector-java-3.0.14-production-bin.jar, and i followed all the steps for installing this connector. my classpath is already set to where i placed the jar file. however, i still get this error :
java.sql.SQLException : unable to connect to any hosts due to exception: java.net.ConnectException : Connection refused : connect
what should i do?
and by the way, here's the code :
import java.sql.*;
public class JdbcExample1 {
public static void main(String args[]) {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
Connection con = DriverManager.getConnection("jdbc:mysql:///");
if(!con.isClosed())
System.out.println("Successfully connected to MySQL server...");
} catch(Exception e) {
System.err.println("Exception: " + e.getMessage());
     e.printStackTrace();
} }

Answer 1

Hi, I am new to all these.
Recently I been trying to get Mysql and JSP and Tomcat working but try and try still cannot. Since you guys are on this topic and more knowledgeable I hope that you could help me out. Thanks.
I have the same set up as you except mysql version 4.0
MySQL is working fine by itself, JSP is working fine connecting to Apache Tomcat fine but cannot get MySQL data connected to show on Tomcat.
Sample code as below
import java.sql.*;
import java.io.*;
class StocksMy {
public static void main (String args []) {
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
try {
} catch (Exception e) {
System.out.println("StocksMy");
System.exit(1);
Connection conn =DriverManager.getConnection
("jdbc:mysql://:3306/StocksMy);
Statement stmt = conn.createStatement();
ResultSet rset = stmt.executeQuery ("select * from stocks");
while (rset.next()) {
String ticker=rset.getString(1).trim();
String title=rset.getString(2).trim();
String price=rset.getString(3).trim();
String blanks=
System.out.print (ticker);
System.out.print(blanks.substring(1,8-ticker.length()));
System.out.print (title);
System.out.print(blanks.substring(1,41-title.length()));
System.out.println (price);
} catch (Exception e) {
System.out.println("StocksMy: JDBC exception");
System.exit(1);
PLEASE is this correct?
How to get this to show up in Tomcat (localhost:8080) ?
I guess must convert to JSP first? How? Can show from sample above or a simple sample?
All very confusing to me.
Thanks guys.