我是 Hibernate 的新手。我创建了一个简单的程序来使用 Hibernate 将值插入数据库。
我的文件结构是这样的
src -> com.visolve -> AddStudent.java 和 student.java
src -> com.xml -> hibernate.cfg.xml 和学生.hbm.xml
我使用以下代码从 AddStudent.java 传送配置文件
String file = "/src/com/xml/hibernate.cfg.xml";
sessionFactory = new Configuration().configure(new File(file)).buildSessionFactory();
我的hibernate.cfg.xml文件是
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/
hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/hibernateExamples</property>
<property name="hibernate.connection.username">
root</property>
<property name="hibernate.connection.password">
</property>
<property name="hibernate.connection.pool_size">
10</property>
<property name="show_sql">true</property>
<property name="dialect">
org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">
update</property>
<!-- Mapping files -->
<mapping resource="com/xml/student.hbm.xml"/>
</session-factory>
</hibernate-configuration>
如果我检查 new File(file).exists() 意味着它返回 true.. 但这里它返回以下异常
Initial SessionFactory creation failed.org.hibernate.HibernateException: Could not parse configuration: src/com/xml/hibernate.cfg.xml
Exception in thread "main" java.lang.NullPointerException
at com.visolve.AddStudent.main(AddStudent.java:44)
最佳答案
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">
com.mysql.jdbc.Driver</property>
<property name="hibernate.connection.url">
jdbc:mysql://localhost:3306/hibernateexamples</property>
<property name="hibernate.connection.username">
root</property>
<property name="hibernate.connection.password">
admin</property>
<property name="hibernate.connection.pool_size">
10</property>
<property name="show_sql">true</property>
<property name="dialect">
org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.hbm2ddl.auto">
update</property>
<!-- Mapping files -->
<mapping resource="com/xml/student.hbm.xml" />
</session-factory>
关于java - 失败.org.hibernate.HibernateException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/12171794/