[英]Cant connect to postgreSQL with Hibernate(Eclipse)
我做錯了什么? 運行完主類后,我可以在控制台中進行查看,如下面的當前屏幕截圖所示,控制台繼續工作,什么也沒有發生。
hibernate.cfg.xml中:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="connection.driver_class">org.postgresql.Driver</property>
<property name="connection.url">jdbc:postgresql://localhost:5432/Gillie_PL</property>
<property name="connection.username">postgres</property>
<property name="connection.password">postgres</property>
<property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
<property name="show_sql">true</property>
<property name="hbm2ddl.auto">update</property>
</session-factory>
</hibernate-configuration>
hibernateUtil.class:
package hibernateConn;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
private static SessionFactory sessionFactory = null;
static {
Configuration cfg =
new Configuration().configure("/hibernateConn/hibernate.cfg.xml");
StandardServiceRegistryBuilder builder =
new StandardServiceRegistryBuilder()
.applySettings(cfg.getProperties());
sessionFactory = cfg.buildSessionFactory(builder.build());
}
public static SessionFactory getSessionFactory(){
return sessionFactory;
}
}
Main.Class:
package hibernateConn;
import org.hibernate.SessionFactory;
public class Main {
public static void main(String[] args) {
SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
}
}
運行Main.class之后,我在控制台中有了:
就這樣。 僅此而已,該程序繼續運行,並且沒有任何反應,好像發生了遞歸……也許我沒有正確指定xml中的設置?
我重寫了HibernateUtil.class:
static {
try{
sessionFactory = new Configuration().configure("/hibernateConn/hibernate.cfg.xml").buildSessionFactory();
}catch(Throwable ex){
System.err.println("++++Initial SessionFactory creation failed.++++: " + ex);
ex.printStackTrace();
}
}
public static SessionFactory getSessionFactory(){
return sessionFactory;
}
而且一切正常。 這個問題可以解決。
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