annotion 时间类型

小鱼儿 2022-04-03 10:16 71阅读 0赞

package ctl.annotion.teacher;  
import java.util.Date;  
import javax.persistence.Column;  
import javax.persistence.Entity;//注意是javax.persistence  
import javax.persistence.GeneratedValue;  
import javax.persistence.GenerationType;  
import javax.persistence.Id;  
import javax.persistence.Table;  
import javax.persistence.Temporal;  
import javax.persistence.TemporalType;  
@Entity  
@Table(name="TTeacher")//javax.persistence.Table;类Teacher映射表TTeacher在xml中用table="TTeacher"来表示  
public class Teacher \{  
private int id;  
private String name;  
private String title;

private Date datet;//在orcale中不能用date做字段

//在xml中用type=""来生设置字段类型

//在mysql中可以实现从1自增但是在orcale中虽然实现了自增但是不是从一开始，而是从当前数据库中当前的id值上进行自增  
@Id  
@GeneratedValue(strategy = GenerationType.AUTO)  
public int getId() \{  
return id;  
\}  
public void setId(int id) \{  
this.id = id;  
\}  
@Column  
public String getName() \{  
return name;  
\}  
public void setName(String name) \{  
this.name = name;  
\}  
@Column  
public String getTitle() \{  
return title;  
\}  
public void setTitle(String title) \{  
this.title = title;  
\}  
  
  
@Column  
@Temporal(TemporalType.DATE)// 在mysql中2013-01-18在orcale中2013-01-18 00:00:00  
// @Temporal(TemporalType.TIME)// 在mysql中12:40:54在orcale中 2013-01-18 13:05:00  
//@Temporal(TemporalType.TIMESTAMP)// mysql中2013-01-18 12:42:24 在orcale中 2013-01-18 13:07:28:328000  
public Date getDatet() \{  
return datet;  
\}  
public void setDatet(Date datet) \{  
this.datet = datet;  
\}  
  
  
\}

package junit.test.teacher;  
import java.util.Date;  
import org.hibernate.Session;  
import org.hibernate.SessionFactory;  
import org.hibernate.cfg.AnnotationConfiguration;  
import org.junit.After;  
import org.junit.AfterClass;  
import org.junit.Before;  
import org.junit.BeforeClass;  
import org.junit.Test;  
import ctl.annotion.teacher.Teacher;  
public class TeacherTest \{  
private static SessionFactory sf=null;  
@BeforeClass  
public static void beforeClass()\{  
//sf=new AnnotationConfiguration().configure("Orcalehibernate.cfg.xml").buildSessionFactory();  
sf=new AnnotationConfiguration().configure("hibernate.cfg.xml").buildSessionFactory();  
\}  
@Test  
public void testTeacherSave() \{  
Teacher t = new Teacher();  
t.setName("zxp");  
t.setTitle("Ich liebe dich");  
t.setDate(new Date());  
Session session = sf.openSession();  
session.beginTransaction();  
session.save(t);  
session.getTransaction().commit();  
\}  
@Test  
public void print()\{  
System.out.println(new Date());  
\}  
@AfterClass  
public static void afterClass()\{  
sf.close();  
\}  
\}