注解中一些问题
一、实体类注解，加入@Entity等，注意@Column中name和数据库中一致，如下图：
package cn.edu.cqu.cqzy.entity; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="music_user",catalog="music") public class User implements java.io.Serializable{ private static final long serialVersionUID = 12222222222L; @Id @GeneratedValue(strategy=GenerationType.AUTO) @Column(name="userId") private int userId; @Column(name="username") private String username; @Column(name="pwd") private String pwd; @Column(name="email") private String email; @Column(name="score") private int score = 0; @Column(name="authority") private int authority = 1; 各种get(),set()..... }
2.服务层 + @Service, 数据访问层 + @Repository、@Transactional, 逻辑控制层 + @Controller (数据层和控制层中的接口，无需要注解), 各层中使用的其它资源用@Resource.
*3.数据实现类若继承HibernateDaoSupport, 需要实现setSessionFactory0(),并加上注解@Autowired
public class AdminDaoImpl extends HibernateDaoSupport implements AdminDao{ @Autowired public void setSessionFactory0(SessionFactory sessionFactory) { super.setSessionFactory(sessionFactory); }
原文：http://www.cnblogs.com/pxjgood/p/3990925.html