找不到hibernate.cfg.xml

Question

I am new to Hibernate, reading this book "Java persistence with Hibernate" and I am trying to implement the example from there. So far my Ant build is successful, but when I try to execute the class containing the main method I am getting this error message:

19-Nov-2011 18:40:09 org.hibernate.cfg.Environment <clinit>
INFO: Hibernate 3.2.3
19-Nov-2011 18:40:09 org.hibernate.cfg.Environment <clinit>
INFO: hibernate.properties not found
19-Nov-2011 18:40:09 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: Bytecode provider name : cglib
19-Nov-2011 18:40:09 org.hibernate.cfg.Environment <clinit>
INFO: using JDK 1.4 java.sql.Timestamp handling
19-Nov-2011 18:40:09 org.hibernate.cfg.Configuration configure
INFO: configuring from resource: /hibernate.cfg.xml
19-Nov-2011 18:40:09 org.hibernate.cfg.Configuration getConfigurationInputStream
INFO: Configuration resource: /hibernate.cfg.xml
Exception in thread "main" java.lang.ExceptionInInitializerError
    at persistence.HibernateUtil.<clinit>(Unknown Source)
    at hello.Driver.main(Unknown Source)
Caused by: org.hibernate.HibernateException: /hibernate.cfg.xml not found
    at org.hibernate.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:147)
    at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1405)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1427)
    at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
    ... 2 more

It is clear that hibernate can't find my config file, which is located in the root dir.

Project

+lib
<all required libraries>
+src
  +hello
    HelloWorld.java
    Message.java
    message.hbm.xml
  +persistence
    HibernateUtil.java
build.xml
hibernate.cfg.xml

My the complete source code can be found here: http://pastebin.com/bGDUrxUf

I have a running MySQL server with a database hibernateapp and table messages

Thanks :)

Answer 1

The hibernate.cfg.xml file shoul be in root directory of the classpath of your project. If you using Maven then make sure it should be like src > resources > hibernate.cfg.xml.

Answer 2

Your hibernate.cfg.xml needs to be inside the src directory; otherwise it's not covered by Ant's copymetafiles target, so it won't end up in your compiled classpath.

Answer 3

它不应该在您的根目录中，它应该在您的类路径中。

Answer 4

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, I 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);

Answer 5

If you are working on Intellij Idea then make a folder named "resources" under src\\main\\java. Open Module setting of your project, select "Modules" from left and in the "sources" tab select the newly created "resources" folder and mark it as "Resources". Create the hibernate.cfg.xml file inside this newly created "resources" folder.

then this should work

Configuration con = new Configuration().configure("hibernate.cfg.xml");

Answer 6

虽然现在已经很晚了，但解决方案是您需要将此配置文件放在资源文件夹（projectxxxx-> Resources）中，前提是它是一个maven项目。