2.hibernate 枚举类型, 布尔类型,不持久化属性映射

最新推荐文章于 2025-07-28 23:27:29 发布

原创最新推荐文章于 2025-07-28 23:27:29 发布 · 129 阅读

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#hibernate #日期类型 #布尔类型 #枚举类型 #非持久化类型

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本文介绍了一个使用Hibernate框架进行对象关系映射的实例，包括教师和学生实体类的定义及其属性映射方式，如枚举类型和日期类型的处理。


package com.bjsxt.hibernate;

public enum Gender {
	MALE, FEMALE
}


package com.bjsxt.hibernate;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.EnumType;
import javax.persistence.Enumerated;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.persistence.Transient;

@Entity
@Table(name="_teacher")
public class Teacher {
	private int id;
	private String name;
	private String title; 
	private String yourWifeName;
	private Date birthDate;
	private boolean good;
	private Gender gender;

	@Enumerated(EnumType.STRING)//枚举类型映射
	public Gender getGender() {
		return gender;
	}
	public void setGender(Gender gender) {
		this.gender = gender;
	}
	public boolean isGood() {
		return good;
	}
	public void setGood(boolean good) {
		this.good = good;
	}
	@Transient//非持久化属性
	public String getYourWifeName() {
		return yourWifeName;
	}
	public void setYourWifeName(String yourWifeName) {
		this.yourWifeName = yourWifeName;
	}
	@Id
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}


	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getTitle() {
		return title;
	}
	public void setTitle(String title) {
		this.title = title;
	}
	@Temporal(TemporalType.TIME)//日期类型映射
	public Date getBirthDate() {
		return birthDate;
	}
	public void setBirthDate(Date birthDate) {
		this.birthDate = birthDate;
	}
}


package com.bjsxt.hibernate;

public class Student {
	private int id;
	private String name;
	private int age;
	private String sex;
	private boolean good;
	public boolean isGood() {
		return good;
	}
	public void setGood(boolean good) {
		this.good = good;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public int getAge() {
		return age;
	}
	public void setAge(int age) {
		this.age = age;
	}
	public String getSex() {
		return sex;
	}
	public void setSex(String sex) {
		this.sex = sex;
	}


}


<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<hibernate-mapping>
	<class name="com.bjsxt.hibernate.Student" table="_student">
		<id name="id" />
		<property name="name" />
		<property name="age" />
		<property name="sex" />
		<property name="good" type="yes_no"></property>
    </class>

</hibernate-mapping>