Sql - execute statement problems

Question

I have a "try" with a "catch" that contains an sql execute statement, and some statements after that, but it doesn't execute any of the following statements. It successfully compiles and has no errors when I run it. It just doesn't insert the information and it stops every command that follows. When I remove the execute state (the one with the asterist next to it), the following statements execute fine. Any information on what I might be missing would be greatly appreciated. Thanks.
try{
new JdbcOdbcDriver();
String url = "jdbc:odbc:javadb";
String user = "";
String password = "";
Connection con =
DriverManager.getConnection(url, user, password);
Statement stmt = con.createStatement();
System.out.println("Made the Connection");
*stmt.executeUpdate("INSERT INTO tbl VALUES ('bradley')");
System.out.println("Made the Connection");
JOptionPane.showMessageDialog(this, "Data Inserted");
}catch(Exception e)
e.printStackTrace();
}

Answer 1

Look in your log file. When you perform "e.printStackTrace()" the stack is sent to the System.out, which JSP has already redirected to the log.
If you're having trouble finding the log (it depends on what webserver you're using), try changing that to:
out.println("<h3>We have an error: " + e + "</h3>");
(Notice the absense of "System." here. We're using the pre-defined JSP "out" object that's going to the client browser.)
That will print the error message, plus the reason for the error, on your client as 2nd level header.
Personally, I always print out my error messages in this manner. I find that having a full, complete, extensive stack trace is next to useless. It's like asking for the definition of the word "Java", and having the Oxford Unabridged Dictionary dropped in your lap.