Java/eclipse/hibernate

I'm a .net dev, usually do this using nhibernate and can work with that fine. I'm doing a project which needs to be written in Java and have the following issue:

All I have so far is a blank java project setup in eclipse. I have C:\work\lib\java\cp\hibernate3.jar in the Referenced Libraries node in the package explorer.

in my code (main) i'm doing this

Configuration config = new Configuration().
            setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect").
            setProperty("hibernate.connection.driver_class", "org.hsqldb.jdbcDriver").
            setProperty("hibernate.connection.url", "jdbc:hsqldb:mem:RefenceDb").
            setProperty("hibernate.connection.username", "sa").
            setProperty("hibernate.connection.password", "").
            setProperty("hibernate.connection.pool_size", "1").
            setProperty("hibernate.connection.autocommit", "true").
            setProperty("hibernate.cache.provider_class", "org.hibernate.cache.HashtableCacheProvider").
            setProperty("hibernate.hbm2ddl.auto", "create-drop").
            setProperty("hibernate.show_sql", "true").
            addClass(Boy.class);

and in the consol i have:

Exception in thread "main"开发者_如何学JAVA java.lang.NoClassDefFoundError: org/dom4j/DocumentException
    at ReferenceApplication.Main.main(Main.java:15)
Caused by: java.lang.ClassNotFoundException: org.dom4j.DocumentException
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClassInternal(Unknown Source)
    ... 1 more

any ideas?

the path C:\work\lib\java\cp\ is in the classpath

w://

While the other answers here referencing dom4j are correct, you will soon find there a dozen or so other dependencies.

Starting from total scratch is a noble pursuit, but I would actually recommend giving yourself a head start by installing Maven (for dependency management) and running mvn archetype:generate from the command line. If you're doing a web application (which you may not be based on the question text) selecting "maven-archetype-j2ee-simple" or "maven-archetype-webapp" would be a pretty good kickstart. Doing so will set up a project for you that can then be used in eclipse (you could even use m2eclipse plugin to do dependency management from within eclipse).

It will turn out that Maven has a learning curve of its own, but my opinion is that the benefits outweigh the costs.

Good luck!

Download dom4j and put it on your classpath (in the referenced libraries tab)

From the stack trace, it looks like you're missing dom4j.jar. Hibernate (for Java) has a ton of dependencies. Make sure that you have all of Hibernates required dependencies added to your Eclipse project.

You need to put the dom4j jar on your classpath. You should be able to get it here:

http://www.dom4j.org/download.html

I think that hibernate uses version 1.6.1

To make all this easier, I would quickly learn Maven and then use the m2eclipse plugin. I know it's a learning curve, but it will make everything massively easier at deploy time.