基于JPA的实体类写法

 基于JPA的实体类写法:

@Entity
@Table(name = "t_sg_goal")
public class Goal {

	/**
	 * 目标主键ID
	 */

	@Id
	@Column(name = "goal_id", nullable = true, length = 32)
	private String goalId;

	/**
	 * 目标名称
	 */
	@Column(name = "goal_name", nullable = true, length = 64)
	private String goalName;

	/**
	 * 年度
	 */
	@Column(name = "year_info", nullable = true, length = 4)
	private Integer yearInfo;
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