Question

我试图让Hibernate 4.3与我的MySQL数据库一起工作。我已经能够在Eclipse中使用Hibernate代码生成工具，我也可以使用Hibernate Configurations工具连接到数据库。

但是，当我尝试在查询数据库的Main类中运行代码时，我收到以下错误：

Exception in thread "main" java.lang.NoClassDefFoundError: javax/transaction/SystemException
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2248)
at org.jboss.logging.Logger.getMessageLogger(Logger.java:2214)
at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:184)
at be.comp.permanenties.HibernateUtil.<clinit>(HibernateUtil.java:15)
at be.comp.dao.balie.ZitdagenDAOMySQL.findByMaCode(ZitdagenDAOMySQL.java:31)
at be.comp.permanenties.Main.main(Main.java:19)
Caused by: java.lang.ClassNotFoundException: javax.transaction.SystemException
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 8 more

我的HibernateUtil.java文件中的代码是：

import org.apache.commons.lang3.SystemUtils;
import org.hibernate.HibernateException;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.ServiceRegistryBuilder;

public class HibernateUtil {

private static final SessionFactory sessionFactoryBalie = new Configuration().configure("mysql_balie.cfg.xml").buildSessionFactory();

public static SessionFactory getSessionFactoryBalie() {
    return sessionFactoryBalie;
}

}

mysq_balie.cfg.xml文件如下所示：

<?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="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>

    <!-- Development -->

    <property name="hibernate.connection.url">jdbc:mysql://127.0.0.1:3306/balie?autoReconnect=true&amp;useUnicode=true&amp;characterEncoding=iso-8859-1</property>
    <property name="hibernate.connection.username">username</property>
    <property name="hibernate.connection.password">password</property>
    <property name="hibernate.default_catalog">db</property>

    <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>

    <!-- JDBC connection pool (use the built-in) -->
    <property name="hibernate.connection.pool_size">1</property>

    <!-- Enable Hibernate's automatic session context management -->
    <property name="hibernate.current_session_context_class">thread</property>
    <!-- <property name="hibernate.current_session_context_class">org.hibernate.context.internal.ThreadLocalSessionContext</property>-->

    <!-- Disable the second-level cache -->
    <property name="hibernate.cache.provider_class">org.hibernate.cache.NoCacheProvider</property>

    <!-- Echo all executed SQL to stdout -->
    <property name="hibernate.show_sql">true</property>

    <!-- Drop and re-create the database schema on startup -->
    <property name="hibernate.hbm2ddl.auto">update</property>

    <!-- List of XML mapping files -->
    <mapping resource="be/comp/model/balie/Zitdagen.hbm.xml"/>
</session-factory>

我无法弄清楚错误的位置。欢迎所有帮助。感谢。

Answer 1

你缺少jta.jar
与maven添加此dep：

  <dependency>
      <groupId>javax.transaction</groupId>
      <artifactId>jta</artifactId>
      <version>1.1</version>
  </dependency>

或从maven存储库下载并添加到您的CLASSPATH

Answer 2

以上答案对于Maven应用程序是正确的。但在普通应用程序中，您只需添加一个名为jta-1.1.jar的jar文件。

- ＆gt;如果你使用3.x版本，可以在你的下载hibernate发行jar文件夹路径下找到，名为lib / required / jta-1.1.jar。

- ＆gt;如果您使用的是hibernate 4.x版本，可在分发文件夹路径下找到，名为dlist / lib / provided / jta-1.1.jar

Answer 3

如果您不使用Maven / Gradle，更简单的方法是逐个下载整个bundle而不是jar文件。

转到http://hibernate.org/orm/downloads/并下载最新的库，从required文件夹中提取jar。

Hibernate 4 javax / transaction / SystemException错误

3 个答案: