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I am _realy_ sorry but Outlook Express sent this in HTML format... I just
realized it... and here is the plain text version of the message I sent
early... sorry
Hi, I am using Linux 2.2, Apache 1.3.9 with JServ 1.0, and Blackdown Java
1.2.. I am trying to write a Servlet to interect with a MySQL 3.22... I have
the mm.mysql JDBC driver... A small application to test the database
conectivity works when I run it with the normal java JTest command... but
when I put the database code into the servlet it does nothing... the code
that throws the exception looks something like:
try
{
// Workaround for broken Java implementations
Class.forName("org.gjt.mm.mysql.Driver").newInstance();
Connection con =
DriverManager.getConnection("jdbc:mysql://localhost/radon?user=root&password
=agent1337");
Statement Stmt = con.createStatement();
ResultSet RS = Stmt.executeQuery("SELECT * from table");
while (RS.next())
{
out.println(RS.getString(1));
out.println(RS.getString(2));
}
RS.close();
Stmt.close();
con.close();
}
catch(Exception e)
{
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
out.println("<pre>");
out.print(sw.toString());
out.println("</pre>");
}
Now when I run this code I get in the web-browser:
java.lang.ClassNotFoundException: org.gjt.mm.mysql.Driver
at org.apache.java.lang.AdaptiveClassLoader.loadClass(Compiled Code)
at java.lang.ClassLoader.loadClass(Compiled Code)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Compiled Code)
at JSTest.doGet(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at org.apache.jserv.JServConnection.processRequest(Compiled Code)
at org.apache.jserv.JServConnection.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
This code is almost literaly copy/pasted from the mm.mysql driver
examples...
my jserv.properties file looks like:
wrapper.class=org.apache.jserv.JServ
wrapper.class=org.gjt.mm.mysql.Driver
wrapper.classpath=/usr/src/ApacheJServ-1.0/src/java/ApacheJServ.jar
wrapper.classpath=/usr/local/JSDK2.0/lib/jsdk.jar
wrapper.classpath=/usr/local/mm.mysql.jdbc-1.2b/mysql_comp.jar
# I tried with either one of these statments... both... and noone... and its
the same result
wrapper.classpath=/usr/local/mm.mysql.jdbc-1.2b/mysql_uncomp.jar
I don't get why it doesn't work... it fails to load the driver... the driver
works and loads when I run it from a normal application but not from
jserv... realy weird... the zone is the same as the regular root zone that
was created when I installed JServ... and the file I am testing I put in the
example directory aloong with the hello.class file (I know its pretty ghetto
but I haven't gotten around to organizing the directory structure.... and
this servlet is only a database test)
Can someone please help me with this problem.... I read the FAQ-O-Matic...
(for hours I might add) and I couldn't find anything that worked... I also
read a bunch of documents on servletcentral and some other sites pointed to
by the jserv web-site... but still no luck... I am sure its something so
simple that I can't see it...
Thaks in advance
Stou Sandalski
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