@SuppressWarnings("serial")@Entity@Table(name="T_X")public class X implements Serializable{ @Id @GeneratedValue(strategy = GenerationType.AUTO) private int id; @Column(length=32) private String n
JPA注解持久化类很方便，需要jar包：ejb3-persistence.jar。我用以下三个类来说明用法。sh原创 转载请注明：http://67566894.iteye.com/blog/659829Java代码 @SuppressWarnings("serial") @Entity @Table(name="T_X") public class X imp
在Hibernate 4.3中如果使用了@Table注解，在获取session的时候会抛出如下异常
[color=darkblue]Exception in thread "main" java.lang.NoSuchMethodError: javax.persistence.Table.indexes()[Ljavax/persistence/Index;
at org.hibernate.
## javax.persistence.TransactionRequiredException: No EntityManager with actual
### 1. 流程图
```mermaid
flowchart TD
A(开始) --> B(创建EntityManager)
B --> C(开启事务)
C --> D(执行业务逻辑)
D --> E(
