Hibernate exception hibernate.cfg.xml not found

Question

I'm trying to start project with Hibernate and Maven.

I got such exception:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" org.hibernate.HibernateException: /hibernate.cfg.xml not found
    at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:170)
    at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:2176)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:2157)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:2137)
    at FirstHibernate.com.myhib.CRUDS.CrudsOps.main(CrudsOps.java:15)

Here is the screenshot of my project structure, (hibernate.cfg.xml is in src/): http://imageshack.us/photo/my-images/692/screenshotxba.jpg/

CrudsOps.java

package FirstHibernate.com.myhib.CRUDS;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class CrudsOps {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        SessionFactory sf = new Configuration().configure().buildSessionFactory();
        System.out.println("Cfg and hbm files loaded succesfully");
        Session session = sf.openSession();
        session.beginTransaction();
        System.out.println("Transaction began");

    }

}

pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>FirstHibernate</groupId>
  <artifactId>com.myhib</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>com.myhib Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>3.6.8.Final</version>
    </dependency>
    <dependency>
        <groupId>postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <version>9.1-901.jdbc4</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>4.2.0.Final</version>
    </dependency>
  </dependencies>
  <build>
    <finalName>com.myhib</finalName>
    <resources>
        <resource>
            <filtering>true</filtering>
            <directory>src/main/resources</directory>
        </resource>
    </resources>
  </build>
</project>

What could be a source of that exception?

Solution 1

As @JBNizet said, your hibernate.cfg.xml should be in src/main/resources. In src, it won't be added to your classpath for runtime.

If you are running your project within Eclipse, don't forget in the project preferences in the build path configuration to check that the src/main/resources is not excluded from your class path and is indeed a source folder.

Solution 2

The file should be in the runtime classpath. Maven copies to the target/classes folder the resources that are under src/main/resources. So your config file should be there.

That said, you don't show the code which loads the file, so there might be other problems.

Solution 3

You can load hibernate.cfg.xml from a different directory (not necessarily the classpath) using the configure(File configFile) method that takes the hibernateConfig File argument. (note, am using hibernate 4.3.7)

Like this:

---

String hibernatePropsFilePath = "/etc/configs/hibernate.cfg.xml";
File hibernatePropsFile = new File(hibernatePropsFilePath);

Configuration configuration = new Configuration(); 
configuration.configure(hibernatePropsFile);

StandardServiceRegistryBuilder serviceRegistryBuilder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());

ServiceRegistry serviceRegistry = serviceRegistryBuilder.build();

SessionFactory sessionFactory = configuration.buildSessionFactory(serviceRegistry);

---

Comments

[devger]

Unfortunately, that didn't help. Updating my post with Java files.

[JB Nizet]

Can you find the hibernate.cfg.xml file under target/classes?

[JB Nizet]

Then either you ddn't rebuild your project with Maven, or you disabled the resource copying somehow in your pom.

[devger]

I did 'mvn package' command to rebuild project with Maven, is it correct? Posting my 'pom.xml'.

[Naga Vemprala]

Excellent analysis @benzonico . Thumbs up for the answer