Hii,
I am developing a simple hibernate application to understand this technology. I am using postgresql database and apache tomcat web server...

I configure my system as far as I known...
However I am getting a misterious error message from browser, which says
as root of the problem,
"java.lang.NoClassDefFoundError: org/dom4j/io/SAXReader"


what is it all about .. ?
am I missing something ?... what should I do to fix it.. ?


thanks..

check lib/readme.txt to see what libs are required.

You very concretely miss a dom4j.jar in your class path but as it is probably not the only one you're missing, you should follow max's advice.

Erik

hii,

thanks for your answers... it was all about my enviromental variables...

anyway.. I have faced another problem which I dont think that related with DB, becouse I tried Mysql and postgresql and have seen same output from apache server....


which is
"org.hibernate.HibernateException: database product name cannot be null""


it may all about the DB but I havent been able to figure out it yet...

what may couse that exception ? ...

Never seen this one. Could you post the whole stack trace as well as any Hibernate configuration and properties file?

Erik

in the hibernate.cg.xml

we have to mention the DB details explicitly.

Otherwise we will get this type of error.

pls check your configuration details.

Srini

this is hibernate.cfg.xml

<hibernate-configuration>
<session-factory name="foo">
<property name="show_sql">true</property>
<mapping resource="org/hibernate/test/Simple.hbm.xml"/>
<class-cache
class="org.hibernate.test.Simple"
region="Simple"
usage="read-write"/>
</session-factory>
</hibernate-configuration

I havent change it, should I ????? ....


this is the related part of the hibernate.properties

#MySQL

hibernate.dialect org.hibernate.dialect.MySQLDialect
hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect
#hibernate.dialect org.hibernate.dialect.MySQLMyISAMDialect
hibernate.connection.driver_class com.mysql.jdbc.Driver
hibernate.connection.url jdbc:mysql:///localhost/intengotest
hibernate.connection.username root
hibernate.connection.password ******

I think I have to choose one of the dialects ... ISAM or Inno


and this is the http500 report

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.hibernate.HibernateException: database product name cannot be null
org.hibernate.dialect.DialectFactory.determineDialect(DialectFactory.java:57)
org.hibernate.dialect.DialectFactory.buildDialect(DialectFactory.java:39)
org.hibernate.cfg.SettingsFactory.determineDialect(SettingsFactory.java:374)
org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:110)
org.hibernate.cfg.Configuration.buildSettings(Configuration.java:1463)
org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1004)
form.doGet(form.java:31)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

note The full stack trace of the root cause is available in the Apache Tomcat/5.5.11 logs.



if it is all about hibernate.cfg.xml, I shame ver very much .. and sorry... but tuttorials dont talk about that ...