No suitable driver found for jdbc:mysql

Question

Running :
Windows XP ver 5.1 on x86
Java 1.6.0_03
VM Java HotSpot Client VM 1.6.003-b05
Java jdk1.6.0\jre
MySQL ver 14.12 Distrib 5.0.45 for Win32 (ia32)
NetBeans IDE 5.5.1 (Build 200704122300)
Classpath set to:
E:\Programfiler\Java\jre1.6.0_03\lib\ext\QTJava.zip;E:\Programfiler\MySQL\mysql-connector-java-5.1.5\mysql-connector-java-5.1.5-bin.jar
MySQL (Connector/J driver)
Can connect to database at Runtime folder in Netbeans IDE.
Can see all tables and read them but when I run following code:
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
} catch (Exception e) {
System.err.println(e.toString());
I get following result;
run:
java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
java.sql.SQLException:
     ://localhost:3306/test
at java.sql.DriverManager.getConnection(DriverManager.java:602)
at java.sql.DriverManager.getConnection(DriverManager.java:185)
at viewtable01.Main.main(Main.java:43)
BUILD SUCCESSFUL (total time: 0 seconds)
PLEASE HELP, I'M GOING NUTS

Answer 1

I'M GOING NUTSI'm already there...
Try this at a new command prompt (start~run: cmd)
$ dir E:\Programfiler\MySQL\mysql-connector-java-5.1.5\mysql-connector-java-5.1.5-bin.jarDoes it exist?
If not then fix your classpath.
If so then start~run: notepad ConnectorTest.java
import java.sql.Connection;
import java.sql.DriverManager;
public class ConnectorTest {
  public static void main (String[] args) {
    Connection conn = null;
    try {
      String userName = args[0];
      String password = args[1];
      String url = "jdbc:mysql://localhost/test";
      Class.forName("com.mysql.jdbc.Driver").newInstance ();
      conn = DriverManager.getConnection(url, userName, password);
      System.out.println ("OK");
    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      if(conn != null)try{conn.close();}catch(Exception eaten){}
javac -cp E:\Programfiler\MySQL\mysql-connector-java-5.1.5\mysql-connector-java-5.1.5-bin.jar ConnectorTest.java
java -cp E:\Programfiler\MySQL\mysql-connector-java-5.1.5\mysql-connector-java-5.1.5-bin.jar ConnectorTest ${username} ${password}When you've got it working at the command line then you can work out how to specify the libraries in netbeans... it's not hard, and it's very well covered in the netbeans help.
You do know that netbeans doesn't use the system classpath don't you... because the classpath really needs to be specified on a project by project basis, mainly to allow you deal with libraries which depend on particular versions of other libraries. Ant's dependancy on xalan and xerces is a notable example.
IMHO (in my humble opinion) newbies are better of working at the command prompt whilst learning the java language. A modern IDE is a complex beasty in it's own right, which tends to distract your main focus, learning java. I'm not alone in this opinion. Take it or leave it.
Cheers, Keith.
Edited by: corlettk on Nov 10, 2007 11:53 PM