I have deployed my JDBC and JNDI in Tomcat5.0,I have also deployed hibernate.cfg.xml.

This is my Cat.hbm.xml:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">

<hibernate-mapping>

<class name="net.sf.hibernate.examples.quickstart.Cat" table="CAT">

<!-- A 32 hex character is our surrogate key. It's automatically
generated by Hibernate with the UUID pattern. -->
<id name="id" type="string" unsaved-value="null">
<column name="CAT_ID" sql-type="char(32)" not-null="true"/>
<generator class="uuid.hex"/>
</id>

<!-- A cat has to have a name, but it shouldn' be too long. -->
<property name="name">
<column name="NAME" sql-type="varchar(16)" not-null="true"/>
</property>

<property name="sex"/>

<property name="weight"/>

</class>

</hibernate-mapping>


But when i run my servlet, it gave out the error:

Exception: net.sf.hibernate.MappingException: Error reading resource: Cat.hbm.xml


What's the possibility of this exception?
How can i resolve it?

Excellent forum name, you'll have many friends around here.

Thank u,but can u resolve my problem?

I know, you are waiting :)

Can't tell you what exactly the problem is but maybe you look at the log. There should be a more detailed description of the problem.
If log4j is not enabled yet create a file named log4j.properties with the following entries and put it in the classpath.

Thank u,but how can i use the log4j? Should i write some code in my servlet?And, how can i find the log file?

Just stick log4j.jar in the root of your application classpath (lib/) and let it do the rest. Log4j comes with hibnernate and just intercepts system out from certain classes,... have a look on the web it is very easy to use and 'install'.

As for the problem - surely the cat.hbm.xml file needs to be in the same directory as the cat.class file - if it is not then change yor deployment descrriptors to make it so.. et voila .... hopefully?!

S :) Immfinished