存储日期
@Entity
@Table(name="test")
public class Test{
private String id;
private Date createTime;

@Id
@Column(name = "ID_", unique = true, nullable = false)
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}

@Column(name="CreateTime_")
@Temporal(value=TemporalType.TIMESTAMP) //指明数据库用TIMESTAMP
public Date getCreateTime() {
return createTime;
}
public void setCreateTime(Date createTime) {
this.createTime = createTime;
}

}

SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date = sdf.format(new Date());
test.setCreateTime(sdf.parse(date));
//如果日期类型是Timestamp
//Timestamp ts = Timestamp.valueOf(date);
//test.setCreateTime(ts)
//或者直接使用test.setCreateTime(new java.sql.Timestamp(System.currentTimeMillis()));