Hibernate注解运行时的错误
/* * 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; }}<!--添加使用hibernate注解的实体bean，而不是映射文件--><mapping class="com/entity/Weapon" />
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(); }}