Hibernate注解运行时的错误

Java code

/* * 实体类 */package com.entity;import javax.persistence.GeneratedValue;import javax.persistence.GenerationType;import javax.persistence.Id;import org.hibernate.annotations.Entity;@Entitypublic class Weapon {    private int id;    private String name;    @Id    @GeneratedValue(strategy=GenerationType.SEQUENCE)    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

hibernate配置文件

Java code

<!--添加使用hibernate注解的实体bean，而不是映射文件--><mapping class="com/entity/Weapon" />

Java code

package com.test;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.AnnotationConfiguration;import com.entity.Weapon;/* * 测试类 * 通过在hibernate文件中注册实体bean，并在实体bean中添加 * hibernate注解，可以自动创建数据库中的关联表并将属性与字段关联 */public class TestAnnotations {    private static AnnotationConfiguration ac = new AnnotationConfiguration();        private static SessionFactory sf = null;        public static void main(String[] args) {        ac.configure();        sf = ac.buildSessionFactory();        Session session = sf.openSession();        Transaction tran = session.beginTransaction();        Weapon weapon = new Weapon();        weapon.setName("jack");        session.save(weapon);        tran.commit();        session.close();    }}

错误信息：
java.lang.NoClassDefFoundError: org/hibernate/annotations/common/reflection/ReflectionManager
at com.test.TestAnnotations.<clinit>(TestAnnotations.java:15)
Caused by: java.lang.ClassNotFoundException: org.hibernate.annotations.common.reflection.ReflectionManager
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
... 1 more
Exception in thread "main"

jar包一共23个，按着视频的都添加进去了，后添加的两个是：ejb3-persistence.jar和hibernate-annotations.jar


[解决办法]
你代码中引入的是org.hibernate.cfg.AnnotationConfiguration中的jar，但是你定义的时候，系统解析出来你用的是org.hibernate.annotations.common.reflection.ReflectionManager。。。
[解决办法]

探讨

不好意思，没太明白。能说详细点吗？应该引入哪个？

[解决办法]
还有这里。<mapping class="com/entity/Weapon" />
修改成<mapping class="com.entity.Weapon" />