Java hibernate在启动时抛出异常
Java hibernate在启动时抛出异常
提问于 2016-06-18 19:26:14
我现在正在使用Hibernate处理一个项目，但在运行我的项目时遇到错误。
在server.java (我的入口点)上，我得到了这个：
private static HibernateUtil hibernateUtil;在我的入口点：
hibernateUtil = new HibernateUtil();这是我的HibernateUtil类：
public class HibernateUtil {
private SessionFactory sessionFactory;
public HibernateUtil() {
StandardServiceRegistry registry = new StandardServiceRegistryBuilder().configure().build();
try {
sessionFactory = new MetadataSources( registry ).buildMetadata().buildSessionFactory();
}
catch (Exception e) {
StandardServiceRegistryBuilder.destroy( registry );
}
}
public SessionFactory getSessionFactory() {
return sessionFactory;
}
}现在我的Hibernate.cf.xml：
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">com.mysql.cj.jdbc.Driver</property>
<property name="hibernate.connection.username">root</property>
<property name="hibernate.connection.password">123</property>
<property name="hibernate.connection.url">jdbc:mysql://localhost:3306/dynamicdb</property>
<property name="hibernate.dialect">org.hibernate.dialect.MySQLInnoDBDialect</property>
<property name="show_sql">false</property>
<property name="connection.pool_size">1</property>
</session-factory>
现在我得到的错误是：
Jun 18, 2016 1:17:17 PM org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.2.0.Final}
Jun 18, 2016 1:17:17 PM org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
Jun 18, 2016 1:17:17 PM org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
Jun 18, 2016 1:17:18 PM org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.cj.jdbc.Driver] at URL [jdbc:mysql://localhost:3306/dynamicdb]
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {user=root, password=****}
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 1 (min=1)
Jun 18, 2016 1:17:18 PM org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl stop
INFO: HHH10001008: Cleaning up connection pool [jdbc:mysql://localhost:3306/dynamicdb]
Jun 18, 2016 1:17:18 PM org.hibernate.service.internal.AbstractServiceRegistryImpl stopService
INFO: HHH000369: Error stopping service [class org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl] : java.lang.NullPointerException我在MacOSX10.10和MAMP上运行Eclipse mars2。MySQL正在运行，数据库用户和数据库存在，并且密码正确。有什么问题吗？
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原文链接：
https://stackoverflow.com/questions/37896398
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