所以我试图连接到我在 localhost 上的 postgresql 数据库引发了休眠,但是当我尝试连接时总是出错并且真的不知道问题是什么。
> 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.
Initial SessionFactory creation failed.org.hibernate.HibernateException: /hibernate.cfg.xml not found
Exception in thread "main" java.lang.ExceptionInInitializerError
at persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:18)
at persistence.HibernateUtil.<clinit>(HibernateUtil.java:8)
at com.hp.videotheek.App.main(App.java:15)
Caused by: 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 persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:13)
... 2 more
这是我从 eclipse 的登录中得到的
import org.hibernate.Session;
import persistence.HibernateUtil;
public class App
{
public static void main( String[] args )
{
Session session=HibernateUtil.getSessionFactory().openSession();
session.beginTransaction();
}
}
这就是我要建立联系的地方
package persistence;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static final SessionFactory sessionFactory = buildSessionFactory();
private static SessionFactory buildSessionFactory() {
try {
return new Configuration().configure().buildSessionFactory();
}
catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
public static void shutdown() {
getSessionFactory().close();
}
}
这是我的文件设置
新错误
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.
Initial SessionFactory creation failed.org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml
Exception in thread "main" java.lang.ExceptionInInitializerError
at persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:16)
at persistence.HibernateUtil.<clinit>(HibernateUtil.java:8)
at com.hp.videotheek.App.main(App.java:11)
Caused by: org.hibernate.HibernateException: Could not parse configuration: /hibernate.cfg.xml
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2246)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2158)
at org.hibernate.cfg.Configuration.configure(Configuration.java:2137)
at persistence.HibernateUtil.buildSessionFactory(HibernateUtil.java:12)
... 2 more
Caused by: org.dom4j.DocumentException: Error on line 1 of document : Content is not allowed in prolog. Nested exception: Content is not allowed in prolog.
at org.dom4j.io.SAXReader.read(SAXReader.java:482)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:2238)
... 5 more
<!--<span class="hiddenSpellError" pre=""-->DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
<a href="http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"</a>>
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
jdbc:postgresql://localhost:5432/postgres
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.username">postgres</property>
<property name="connection.password">****</property>
<property name="transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</property>
<!-- SQL dialect - generate SQL for a particular database -->
<property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<!-- Echo all executed SQL statements -->
<property name="show_sql">true</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Mapping resource configuration files -->
<mapping resource="src/com/bookstore/bookapp.hbm.xml"/>
</session-factory>
</hibernate-configuration>