项目中hibernate.cfg.xml的位置? [英] Location of hibernate.cfg.xml in project?
问题描述
我创建了一个具有以下结构的项目:
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory(){
try {
//从hibernate.cfg.xml创建SessionFactory
Configuration configuration = new Configuration()。configure C:\\Users\\Nikolay_Tkachev\\workspace\\hiberTest\\src\\logic\\hibernate.cfg.xml);
返回新的Configuration()。configure()。buildSessionFactory();
} catch(Throwable ex){
//确保记录异常,因为它可能被吞噬
System.err.println(Initial SessionFactory creation failed。+ ex);
抛出新的ExceptionInInitializerError(ex);
public static SessionFactory getSessionFactory(){
return sessionFactory;
public static void shutdown(){
//关闭缓存和连接池
getSessionFactory()。close();
}
}
at line
Configuration configuration = new Configuration()。configure(C:\\ Users \\Nikolay_Tkachev\\workspace\\\ \\hiberTest\\src\\logic\\hibernate.cfg.xml);
我有错误
初始化SessionFactory创建
failed.org.hibernate.HibernateException:
C:\ Users \Nikolay_Tkachev\workspace\hiberTest\src\logic\hibernate.cfg.xml
未找到线程main中的异常
$ b $中的java.lang.ExceptionInInitializerError
logic.HibernateUtil.buildSessionFactory(HibernateUtil.java:19)at
logic.HibernateUtil。(HibernateUtil。 java:9)在
logic.Main.main(Main.java:12)引起:
org.hibernate.HibernateException:
C:\ Users \Nikolay_Tkachev\workspace\\在
中找不到
org.hibernate.internal.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:173)
at
org.hibernate.cfg.Configuration.configure(Configuration.j)中的
org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1947)
at logic.HibernateUtil.buildSessionFactory(HibernateUtil.java:14)
... 2 more这个错误的原因是什么,我该如何解决它? 解决方案
给出与您的项目相关的路径。
在
src
中创建一个名为 resources
的文件夹,然后把你的配置文件放在那里。 configuration.configure(/ resources / hibernate.cfg.xml);
如果您检查您的代码
Configuration configuration = new Configuration()。configure(C:\\ Users \\Nikolay_Tkachev\\\\\\\\\\\\\\\\\\\\\\\' \\logic\\hibernate.cfg.xml);
返回新的Configuration()。configure()。buildSessionFactory();
在两行中,您将创建两个配置对象。
如果你写了,应该可以工作(没测试过),
Configuration configuration = new Configuration()。configure (C:\\ Users \\ Nikolay_Tkachev \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
return configuration.buildSessionFactory();
但是它在服务器上部署后失败,因为您使用的是系统路径而不是项目相对路径。
I created a project with following structure:
HibernateUtil:
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
// Create the SessionFactory from hibernate.cfg.xml
Configuration configuration = new Configuration().configure( "C:\\Users\\Nikolay_Tkachev\\workspace\\hiberTest\\src\\logic\\hibernate.cfg.xml");
return new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
// Make sure you log the exception, as it might be swallowed
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
public static void shutdown() {
// Close caches and connection pools
getSessionFactory().close();
}
}
at line
Configuration configuration = new Configuration().configure( "C:\\Users\\Nikolay_Tkachev\\workspace\\hiberTest\\src\\logic\\hibernate.cfg.xml");
I have error
Initial SessionFactory creation failed.org.hibernate.HibernateException: C:\Users\Nikolay_Tkachev\workspace\hiberTest\src\logic\hibernate.cfg.xml not found Exception in thread "main" java.lang.ExceptionInInitializerError at logic.HibernateUtil.buildSessionFactory(HibernateUtil.java:19) at logic.HibernateUtil.(HibernateUtil.java:9) at logic.Main.main(Main.java:12) Caused by: org.hibernate.HibernateException: C:\Users\Nikolay_Tkachev\workspace\hiberTest\src\logic\hibernate.cfg.xml not found at org.hibernate.internal.util.ConfigHelper.getResourceAsStream(ConfigHelper.java:173) at org.hibernate.cfg.Configuration.getConfigurationInputStream(Configuration.java:1947) at org.hibernate.cfg.Configuration.configure(Configuration.java:1928) at logic.HibernateUtil.buildSessionFactory(HibernateUtil.java:14) ... 2 more
What is the reason for the error and how do I fix it?
Give the path relative to your project.
Create a folder called resources
in your src
and put your config file there.
configuration.configure("/resources/hibernate.cfg.xml");
And If you check your code
Configuration configuration = new Configuration().configure( "C:\\Users\\Nikolay_Tkachev\\workspace\\hiberTest\\src\\logic\\hibernate.cfg.xml");
return new Configuration().configure().buildSessionFactory();
In two lines you are creating two configuration objects.
That should work(haven't tested) if you write,
Configuration configuration = new Configuration().configure( "C:\\Users\\Nikolay_Tkachev\\workspace\\hiberTest\\src\\logic\\hibernate.cfg.xml");
return configuration.buildSessionFactory();
But It fails after you deploy on the server,Since you are using system path than project relative path.
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