Hibernate can read the content of hibernate.cfg.xml but still give errors?

Question

I know this is a old question,but it really trap me.

I take the advice of get inputsream using classLoader, code like following:

 public static Session getSession() {
    if (sessionFactory == null) {
        InputStream xmlInputStream = 
                ResourceUtil.getInputStream(HibernateDBUtil.class, CFG_XML);
        Scanner scanner = new Scanner(xmlInputStream);
        //just a test I can read the xml file ,print content here
        while(scanner.hasNext()) System.out.println(scanner.nextLine());
        scanner.close();
        //reget the stream
        xmlInputStream = 
                ResourceUtil.getInputStream(HibernateDBUtil.class, CFG_XML);
        Configuration cfg = new Configuration();
        cfg.addInputStream(xmlInputStream).configure();
        // version 4.3 's way to config
        StandardServiceRegistryBuilder builder = 
                new StandardServiceRegistryBuilder().applySettings
                (cfg.getProperties());  
        StandardServiceRegistryImpl registry = 
                (StandardServiceRegistryImpl) builder.build();  

        sessionFactory = cfg.buildSessionFactory(registry);  
    }
    return sessionFactory.openSession();
}
private static SessionFactory sessionFactory;
private static final String CFG_XML = "properties/hibernate.cfg.xml";

I confirm ResourceUtil.getInputStream is work fine,since I can print the content of hibernate.cfg.xml,but why still give me the error:

update: full stack trace:

INFO: HHH000412: Hibernate Core {4.3.0.Final} Jan 10, 2014 11:33:43 PM org.hibernate.cfg.Environment

INFO: HHH000206: hibernate.properties not found Jan 10, 2014 11:33:43 PM org.hibernate.cfg.Environment buildBytecodeProvider

INFO: HHH000021: Bytecode provider name : javassist Jan 10, 2014 11:33:44 PM org.hibernate.cfg.Configuration configure INFO: HHH000043: Configuring from resource: /hibernate.cfg.xml Jan 10, 2014 11:33:44 PM org.hibernate.cfg.Configuration getConfigurationInputStream

INFO: HHH000040: Configuration resource: /hibernate.cfg.xml Exception in thread "main" org.hibernate.HibernateException: /hibernate.cfg.xml not found at org.hibernate.internal.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:173)atorg.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:2093) at org.hibernate.cfg.Configuration.configure(Configuration.java:2074) at org.hibernate.cfg.Configuration.configure(Configuration.java:2054) at cn.edu.gdut.utils.HibernateDBUtil.getSession(HibernateDBUtil.java:49) at cn.edu.gdut.utils.HibernateDBUtil.listBasicElement(HibernateDBUtil.java:25) at cn.edu.gdut.utils.HibernateDBUtil.main(HibernateDBUtil.java:20)

Thanks,see full stack.I try to make the stack text looks better but failed,hope not upset you. — wangdq
It seems that hibernate is unable to find your hibernate.cfg.xml. Try to create a file with CFG_XML as path argument and check where the method getAbsolutePath() will lead to. Maybe you have a wrong root directory? — Claas Wilke
Thanks.Sorry for my late reply.In fact,In the code above,I can get the xmlInputstream content(see scanner,I can read it content),it means there is nothing wrong.I use a classloader to load resource within a ResourceUtil class,it working fine with other parts,such as icons and property files.But Hibernate just can not find the xmlInputStream,why? — wangdq

Amogh Amogh · Accepted Answer · 2014-01-13T04:23:03

I think, it doesn't really matter where the file is in your IDE. All it matter is where the file will be during execution time, in the final bundle.

So, assuming , your properties/ folder should become the root of the executed bundle.This way, as hibernate.cfg.xml is in properties/, then it should be in the root during execution time. Can you try by using

private static final String CFG_XML = "hibernate.cfg.xml";

Updated

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

below this your code continues. in hibernate.cfg.xml I mentioned <mapping resource="pkg/name/of/mapping/file/file.hbm.xml" />

Hibernate can read the content of hibernate.cfg.xml but still give errors?

1 Answers