Hibernate 一對一主鍵單向關(guān)聯(lián)

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1-1的關(guān)聯(lián)可以基于主鍵關(guān)聯(lián)，但基于主鍵關(guān)聯(lián)的持久化類不能擁有自己的主鍵生成策略，它的主鍵由關(guān)聯(lián)類負責生成。另外，另外，增加one-to-one元素來關(guān)聯(lián)屬性，必須為one-to-one元素增加constrained="true"屬性，表明該類主鍵由關(guān)聯(lián)類生成。

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一、模型介紹

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一個人（Person）對應(yīng)一個地址（Address）。

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二、實體（省略getter、setter方法）

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public class Person11pk {

??? private int personid;

??? private String name;

??? private int age;

??? private Address11pk address11pk;

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public class Address11pk {

??? private int addressid;

??? private String addressdetail;

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三、表模型

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mysql> desc address_11pk;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

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mysql> desc person_11pk;

+----------+--------------+------+-----+---------+-------+

| Field??? | Type???????? | Null | Key | Default | Extra |

+----------+--------------+------+-----+---------+-------+

| personid | int(11)????? | NO?? | PRI |???????? |?????? |

| name? ???| varchar(255) | YES? |???? | NULL??? |?????? |

| age????? | int(11)????? | YES? |???? | NULL??? |?????? |

+----------+--------------+------+-----+---------+-------+

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四、生成的SQL腳本

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/* Formatted on 2007/08/22 14:40 (QP5 v5.50) */

CREATE TABLE `address_11pk` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=gbk;

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/* Formatted on 2007/08/22 14:41 (QP5 v5.50) */

CREATE TABLE `person_11pk` (

? `presonid` int(11) NOT NULL,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`presonid`),

? KEY `FK68A882C591BB393E` (`presonid`),

? CONSTRAINT `FK68A882C591BB393E` FOREIGN KEY (`presonid`) REFERENCES `address_11pk` (`addressid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

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五、映射方法：在Person中配置id生成策略為：

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??????? <id name="personid">

??????????? <!--基于主鍵關(guān)聯(lián)時，主鍵生成策略是foreign，表明根據(jù)關(guān)聯(lián)類生成主鍵-->

??????????? <generator class="foreign">

??????????????? <!--關(guān)聯(lián)持久化類的屬性名-->

??????????????? <param name="property">address11pk</param>

??????????? </generator>

??????? </id>

??????? ......

??????? <!--用于映射1-1關(guān)聯(lián)-->

??????? <one-to-one name="address11pk" constrained="true"/>

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._1_1_pk.Person11pk" table="PERSON_11pk">

??????? <id name="personid" column="presonid">

? ??????????<!--基于主鍵關(guān)聯(lián)時，主鍵生成策略是foreign，表明根據(jù)關(guān)聯(lián)類生成主鍵-->

??????????? <generator class="foreign">

??????????????? <!--關(guān)聯(lián)持久化類的屬性名-->

??????????????? <param name="property">address11pk</param>

??????????? </generator>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--用于映射1-1關(guān)聯(lián)-->

??????? <one-to-one name="address11pk" constrained="true"/>

??? </class>

</hibernate-mapping>

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._1_1_pk.Address11pk" table="ADDRESS_11pk">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??? </class>

</hibernate-mapping>

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六、測試方法

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public class Test_11pk {

??? public static void main(String[] args){

??????? Person11pk p1=new Person11pk();

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??????? p1.setAge(21);

??????? p1.setName("p1");

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??????? Address11pk add1=new Address11pk();

??????? add1.setAddressdetail("鄭州市經(jīng)三路");

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??????? p1.setAddress11pk(add1);

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??????? Session session= HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(add1);

??????? session.save(p1);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

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七、測試結(jié)果

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1) :正常保存. 推薦這么干!

??????? session.save(add1);

??????? session.save(p1);

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Hibernate: insert into ADDRESS_11fk (addressdetail) values (?)

Hibernate: insert into PERSON_11fk (name, age, addressId) values (?, ?, ?)

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2) :正常保存.

??????? session.save(p1);

??????? session.save(add1);

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Hibernate: insert into PERSON_11fk (name, age, addressId) values (?, ?, ?)

Hibernate: insert into ADDRESS_11fk (addressdetail) values (?)

Hibernate: update PERSON_11fk set name=?, age=?, addressId=? where personid=?

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3) :正常保存.

//??????? session.save(p1);

??????? session.save(add1);

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Hibernate: insert into ADDRESS_11fk (addressdetail) values (?)

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4) : 發(fā)生異常,不能保存.

??????? session.save(p1);

//??????? session.save(add1);

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Hibernate: insert into PERSON_11fk (name, age, addressId) values (?, ?, ?)

Exception in thread "main" org.hibernate.TransientObjectException: com.lavasoft.dx._1_1_fk.Address11fk

Hibernate 一對多連接表單向關(guān)聯(lián)

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一、模型介紹

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一個人（Person）對應(yīng)多個地址（Address），比如家庭地址、公司地址。

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二、實體（省略getter、setter方法）

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public class Person1ntab {

??? private int personid;

??? private String name;

??? private int age;

??? private Set addresses=new HashSet();

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public class Address1nfk implements Serializable {

??? private int addressid;

??? private String addressdetail;

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三、表模型

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mysql> desc join_1ntab;

+-----------+---------+------+-----+---------+-------+

| Field???? | Type??? | Null | Key | Default | Extra |

+-----------+---------+------+-----+---------+-------+

| personid? | int(11) | NO?? | PRI |???????? |?????? |

| addressid | int(11) | NO?? | PRI |???????? |?????? |

+-----------+---------+------+-----+---------+-------+

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mysql> desc person_1ntab;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11) ?????| NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

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mysql> desc address_1ntab;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

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四、生成的SQL腳本

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/* Formatted on 2007/08/21 10:58 (QP5 v5.50) */

CREATE TABLE `address_1ntab` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=gbk;

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/* Formatted on 2007/08/21 10:58 (QP5 v5.50) */

CREATE TABLE `join_1ntab` (

? `personid` int(11) NOT NULL,

? `addressid` int(11) NOT NULL,

? PRIMARY KEY? (`personid`,`addressid`),

? UNIQUE KEY `addressid` (`addressid`),

? KEY `FK6B6078C3C8DF5BFF` (`personid`),

? KEY `FK6B6078C3C2B11347` (`addressid`),

? CONSTRAINT `FK6B6078C3C2B11347` FOREIGN KEY (`addressid`) REFERENCES `address_1ntab` (`addressid`),

? CONSTRAINT `FK6B6078C3C8DF5BFF` FOREIGN KEY (`personid`) REFERENCES `person_1ntab` (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

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/* Formatted on 2007/08/21 10:58 (QP5 v5.50) */

CREATE TABLE `person_1ntab` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`personid`)

) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=gbk;

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五、映射方法

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._1_n_tab.Person1ntab" table="PERSON_1ntab">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--映射集合屬性，join_1ntab是連接表表名-->

??????? <set name="addresses"

???????????? table="join_1ntab"

??????????????? >

??????????? <!--“column="personid"”確定PERSON_1ntab表關(guān)聯(lián)到連接表的外鍵列名-->

??????????? <key column="personid"/>

??????????? <!--“column="addressid"”關(guān)聯(lián)PERSON_1ntab表的Address1ntab對象的id在連接表中的列名-->

??????????? <!--“unique="true"表示1-N，Person1ntab是1，Address1ntab是多”-->

??????????? <many-to-many

??????????????????? column="addressid"

??????????????????? unique="true"

???????????????? ???class="com.lavasoft.dx._1_n_tab.Address1ntab"/>

??????? </set>

??? </class>

</hibernate-mapping>

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._1_n_tab.Address1ntab" table="ADDRESS_1ntab">

??????? <id name="addressid">

?? ?????????<generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??? </class>

</hibernate-mapping>

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六、測試方法

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public class Test_1ntab {

??? public static void main(String[] args){

??????? Address1ntab add1=new Address1ntab();

??????? Address1ntab add2=new Address1ntab();

??????? Address1ntab add3=new Address1ntab();

??????? Person1ntab p1=new Person1ntab();

??????? Person1ntab p2=new Person1ntab();

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??????? add1.setAddressdetail("鄭州市經(jīng)三路");

??????? add2.setAddressdetail("合肥市宿州路");

??????? add3.setAddressdetail("北京市長安路");

??????? p1.setName("wang");

??????? p1.setAge(30);

??????? p2.setName("lee");

??????? p2.setAge(50);

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??????? p1.getAddresses().add(add1);

??????? p1.getAddresses().add(add2);

??????? //p2.getAddresses().add(add2);

??????? p2.getAddresses().add(add3);

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??????? Session session= HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(add1);

??????? session.save(add2);

??????? session.save(add3);

??????? session.save(p1);

??????? session.save(p2);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

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七、測試結(jié)果

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1) :正常保存.

??????? session.save(add1);

??????? session.save(add2);

??????? session.save(add3);

??????? session.save(p1);

??????? session.save(p2);

Hibernate: insert into PERSON_1nfk (name, age) values (?, ?)

Hibernate: insert into ADDRESS_1nfk (addressdetail) values (?)

Hibernate: insert into ADDRESS_1nfk (addressdetail) values (?)

Hibernate: update ADDRESS_1nfk set personid=? where addressid=?

Hibernate: update ADDRESS_1nfk set personid=? where addressid=?

Hibernate 多對一外鍵單向關(guān)聯(lián)

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一、模型介紹

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多個人（Person）對應(yīng)一個地址（Address）。

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二、實體（省略getter、setter方法）

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public class Personn1fk {

??? private int personid;

??? private String name;

??? private int age;

??? private Addressn1fk addressn1fk;

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public class Addressn1fk {

??? private int addressid;

??? private String addressdetail;

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三、表模型

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mysql> desc address_n1kf;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??? ????????????|

+---------------+--------------+------+-----+---------+----------------+

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mysql> desc person_n1kf;

+-----------+--------------+------+-----+---------+----------------+

| Field???? | Type???????? | Null | Key | Default | Extra?? ???????|

+-----------+--------------+------+-----+---------+----------------+

| personid? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name????? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age?????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

| addressId | int(11)????? | YES? | MUL | NULL??? |??????????????? |

+-----------+--------------+------+-----+---------+----------------+

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四、生成的SQL腳本

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CREATE TABLE `address_n1kf` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

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DROP TABLE IF EXISTS `person_n1kf`;

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CREATE TABLE `person_n1kf` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? `addressId` int(11) default NULL,

? PRIMARY KEY? (`personid`),

? KEY `FK4571AF54A2A3EE48` (`addressId`),

? CONSTRAINT `FK4571AF54A2A3EE48` FOREIGN KEY (`addressId`) REFERENCES `address_n1kf` (`addressid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

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五、映射方法

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_1_fk.Personn1fk" table="PERSON_n1fk">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--用來映射關(guān)聯(lián)PO column是Address在該表中的外鍵列名-->

??????? <many-to-one name="addressn1fk" column="addressId"/>

??? </class>

</hibernate-mapping>

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_1_fk.Addressn1fk" table="ADDRESS_n1fk">

??????? <id name="addressid">

??????????? <generator class="identity"/>

?????? ?</id>

??????? <property name="addressdetail"/>

??? </class>

</hibernate-mapping>

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六、測試方法

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public class Test_n1fk {

??? public static void main(String[] args){

??????? Personn1fk p1=new Personn1fk();

??????? Personn1fk p2=new Personn1fk();

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??????? p1.setAge(21);

??????? p1.setName("p1");

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??????? p2.setAge(23);

??????? p2.setName("p2");

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??????? Addressn1fk add=new Addressn1fk();

??????? add.setAddressdetail("鄭州市經(jīng)三路");

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??????? p1.setAddressn1fk(add);

??????? p2.setAddressn1fk(add);

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??????? Session session=HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(add);

??????? session.save(p1);

??????? session.save(p2);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

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七、測試結(jié)果

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1) :正常保存. 推薦這么干!

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??????? session.save(p1);

??????? session.save(p2);

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Hibernate: insert into ADDRESS_n1kf (addressdetail) values (?)

Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

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2) :正常保存.

??????? session.save(p1);

??????? session.save(p2);

??????? session.save(add);

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Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

Hibernate: insert into ADDRESS_n1kf (addressdetail) values (?)

Hibernate: update PERSON_n1kf set name=?, age=?, addressId=? where personid=?

Hibernate: update PERSON_n1kf set name=?, age=?, addressId=? where personid=?

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3) :正常保存.

??????? session.save(add);

//??????? session.save(p1);

//??????? session.save(p2);

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Hibernate: insert into ADDRESS_n1kf (addressdetail) values (?)

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4) : 發(fā)生異常,不能保存.

//??????? session.save(add);

??????? session.save(p1);

??????? session.save(p2);

Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

Hibernate: insert into PERSON_n1kf (name, age, addressId) values (?, ?, ?)

Exception in thread "main" org.hibernate.TransientObjectException: com.lavasoft.dx._n_1_fk.Addressn1kf

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Hibernate 多對一連接表單向關(guān)聯(lián)

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一、模型介紹

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多個人（Person）對應(yīng)一個地址（Address）。

?

二、實體（省略getter、setter方法）

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public class Personn1tab {

??? private int personid;

??? private String name;

??? private int age;

??? private Addressn1tab addressn1tab;

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public class Addressn1tab {

??? private int addressid;

??? private String addressdetail;

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三、表模型

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mysql> desc address_n1tab;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

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mysql> desc join_n1tab;

+------------+---------+------+-----+---------+-------+

| Field????? | Type??? | Null | Key | Default | Extra |

+------------+---------+------+-----+---------+-------+

| personid?? | int(11) | NO?? | PRI |???????? |?????? |

| addressn1tab | int(11) | YES? | MUL | NULL??? |?????? |

+------------+---------+------+-----+---------+-------+

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mysql> desc person_n1tab;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

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四、生成的SQL腳本

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CREATE TABLE `address_n1tab` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=gbk;

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CREATE TABLE `join_n1tab` (

? `personid` int(11) NOT NULL,

? `address11fk` int(11) default NULL,

? PRIMARY KEY? (`personid`),

? KEY `FKAC780AAADAE3A82C` (`personid`),

? KEY `FKAC780AAAC6242A64` (`address11fk`),

? CONSTRAINT `FKAC780AAAC6242A64` FOREIGN KEY (`address11fk`) REFERENCES `address_n1tab` (`addressid`),

? CONSTRAINT `FKAC780AAADAE3A82C` FOREIGN KEY (`personid`) REFERENCES `person_n1tab` (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

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CREATE TABLE `person_n1tab` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`personid`)

) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=gbk;

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五、映射方法

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_1_tab.Personn1tab" table="PERSON_n1tab">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--使用join元素顯式確定鏈接表-->

??????? <join table="join_n1tab">

??????????? <!--映射關(guān)聯(lián)所用的外鍵-->

??????????? <key column="personid"/>

??????????? <many-to-one name="addressn1tab"/>

??????? </join>

??? </class>

</hibernate-mapping>

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<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_1_tab.Addressn1tab" table="ADDRESS_n1tab">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??? </class>

</hibernate-mapping>

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六、測試方法

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public class Test_n1tab {

??? public static void main(String[] args){

??????? Personn1tab p1=new Personn1tab();

??????? Personn1tab p2=new Personn1tab();

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??????? p1.setAge(21);

??????? p1.setName("p1");

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??????? p2.setAge(23);

??????? p2.setName("p2");

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??????? Addressn1tab add=new Addressn1tab();

??????? add.setAddressdetail("鄭州市經(jīng)三路");

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??????? p1.setAddressn1tab(add);

??????? p2.setAddressn1tab(add);

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??????? Session session=HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(add);

??????? session.save(p1);

??????? session.save(p2);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

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七、測試結(jié)果

?

1) :正常保存. 推薦這么干!

?

??????? session.save(p1);

??????? session.save(p2);

?

Hibernate: insert into ADDRESS_n1tab (addressdetail) values (?)

Hibernate: insert into PERSON_n1tab (name, age) values (?, ?)

Hibernate: insert into join_n1tab (address11fk, personid) values (?, ?)

Hibernate: insert into PERSON_n1tab (name, age) values (?, ?)

Hibernate: insert into join_n1tab (address11fk, personid) values (?, ?)

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2) :正常保存.

??????? session.save(p1);

??????? session.save(p2);

??????? session.save(add);

?

?Hibernate: insert into PERSON_n1tab (name, age) values (?, ?)

?Hibernate: insert into join_n1tab (address11fk, personid) values (?, ?)

?Hibernate: insert into PERSON_n1tab (name, age) values (?, ?)

?Hibernate: insert into join_n1tab (address11fk, personid) values (?, ?)

?

?

Hibernate 多對多單向關(guān)聯(lián)

?

一、模型介紹

?

多個人（Person）對應(yīng)多個地址（Address）。

一個人可對應(yīng)多個地址，一個地址也可以對應(yīng)多個人。?

二、實體（省略getter、setter方法）

?

public class Personnn {

??? private int personid;

??? private String name;

??? private int age;

??? private Set addresses=new HashSet();

?

public class Addressnn {

??? private int addressid;

??? private String addressdetail;

?

三、表模型

?

mysql> desc person_nn;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

?

mysql> desc join_nn;

+-----------+---------+------+-----+---------+-------+

| Field???? | Type??? | Null | Key | Default | Extra |

+-----------+---------+------+-----+---------+-------+

| personid? | int(11) | NO?? | PRI |???????? |?????? |

| addressid | int(11) | NO?? | PRI |???????? |?????? |

+-----------+---------+------+-----+---------+-------+

?

mysql> desc person_nn;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)??? ??| NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

?

四、生成的SQL腳本

?

/* Formatted on 2007/08/21 11:13 (QP5 v5.50) */

CREATE TABLE `address_nn` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/21 11:14 (QP5 v5.50) */

CREATE TABLE `join_nn` (

? `personid` int(11) NOT NULL,

? `addressid` int(11) NOT NULL,

? PRIMARY KEY? (`personid`,`addressid`),

? KEY `FKAAB98CF5E008E752` (`personid`),

? KEY `FKAAB98CF5239F6A16` (`addressid`),

? CONSTRAINT `FKAAB98CF5239F6A16` FOREIGN KEY (`addressid`) REFERENCES `address_nn` (`addressid`),

? CONSTRAINT `FKAAB98CF5E008E752` FOREIGN KEY (`personid`) REFERENCES `person_nn` (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/21 11:14 (QP5 v5.50) */

CREATE TABLE `person_nn` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`personid`)

) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=gbk;

?

五、映射方法

?

<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_n.Personnn" table="PERSON_nn">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--映射集合屬性，join_1ntab是連接表表名-->

??????? <set name="addresses"

???????????? table="join_nn"

????????????? ??>

??????????? <!--“column="personid"”確定PERSON_1ntab表關(guān)聯(lián)到連接表的外鍵列名-->

??????????? <key column="personid"/>

??????????? <!--“column="addressid"”關(guān)聯(lián)PERSON_1ntab表的Address1ntab對象的id在連接表中的列名-->

??????????? <many-to-many

??????????????????? column="addressid"

??????????????????? class="com.lavasoft.dx._n_n.Addressnn"/>

??????? </set>

??? </class>

</hibernate-mapping>

?

<hibernate-mapping>

??? <class name="com.lavasoft.dx._n_n.Addressnn" table="ADDRESS_nn">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??? </class>

</hibernate-mapping>

?

?

六、測試方法

?

public class Test_nn {

??? public static void main(String[] args){

?? ?????Addressnn add1=new Addressnn();

??????? Addressnn add2=new Addressnn();

??????? Addressnn add3=new Addressnn();

??????? Personnn p1=new Personnn();

??????? Personnn p2=new Personnn();

?

??????? add1.setAddressdetail("鄭州市經(jīng)三路");

???? ???add2.setAddressdetail("合肥市宿州路");

??????? add3.setAddressdetail("北京市長安路");

??????? p1.setName("wang");

??????? p1.setAge(30);

??????? p2.setName("lee");

??????? p2.setAge(50);

?

??????? p1.getAddresses().add(add1);

??????? p1.getAddresses().add(add2);

??????? p2.getAddresses().add(add2);

??????? p2.getAddresses().add(add3);

?

??????? Session session= HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(add1);

??????? session.save(add2);

??????? session.save(add3);

??????? session.save(p1);

??????? session.save(p2);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

?

七、測試結(jié)果

?

1) :正常保存.

???? ???session.save(add1);

??????? session.save(add2);

??????? session.save(add3);

??????? session.save(p1);

??????? session.save(p2);

?

Hibernate: insert into ADDRESS_nn (addressdetail) values (?)

Hibernate: insert into ADDRESS_nn (addressdetail) values (?)

Hibernate: insert into ADDRESS_nn (addressdetail) values (?)

Hibernate: insert into PERSON_nn (name, age) values (?, ?)

Hibernate: insert into PERSON_nn (name, age) values (?, ?)

Hibernate: insert into join_nn (personid, addressid) values (?, ?)

Hibernate: insert into join_nn (personid, addressid) values (?, ?)

Hibernate: insert into join_nn (personid, addressid) values (?, ?)

Hibernate: insert into join_nn (personid, addressid) values (?, ?)

Hibernate 一對一連接表雙向關(guān)聯(lián)

?

一、模型介紹

?

一個人（Person）對應(yīng)一個地址（Address）。

?

二、實體（省略getter、setter方法）

?

public class Person11tab_sx {

??? private int personid;

??? private String name;

??? private int age;

??? private Address11tab_sx address11tab_sx;

?

public class Address11tab_sx {

??? private int addressid;

??? private String addressdetail;

??? private Person11tab_sx person11tab_sx;

?

三、表模型

?

mysql> desc person_11tab_sx;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

?

?

mysql> desc address_11tab_sx;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

?

四、生成的SQL腳本

?

/* Formatted on 2007/08/22 17:35 (QP5 v5.50) */

CREATE TABLE `person_11tab_sx` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/22 17:34 (QP5 v5.50) */

CREATE TABLE `address_11tab_sx` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/22 18:35 (QP5 v5.50) */
CREATE TABLE `join_11tab_sx` (
? `addressid` int(11) NOT NULL,
? `personid` int(11) NOT NULL,
? PRIMARY KEY? (`personid`),
? UNIQUE KEY `addressid` (`addressid`),
? UNIQUE KEY `personid` (`personid`),
? KEY `FKF4AA80E44327AAB6` (`personid`),
? KEY `FKF4AA80E460C0C9F0` (`addressid`),
? CONSTRAINT `FKF4AA80E460C0C9F0` FOREIGN KEY (`addressid`) REFERENCES `address_11tab_sx` (`addressid`),
? CONSTRAINT `FKF4AA80E44327AAB6` FOREIGN KEY (`personid`) REFERENCES `person_11tab_sx` (`personid`)
) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

?

?

五、映射方法

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_1_tab.Person11tab_sx" table="PERSON_11tab_sx">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <join table="join_11tab_sx"

????????????? optional="true">

??????????? <key column="personid"

???????????????? unique="true"/>

??????????? <many-to-one name="address11tab_sx"

???????????????????????? column="addressid"

???????????????????????? not-null="true"

???????????????????????? unique="true"/>

??????? </join>

??? </class>

</hibernate-mapping>

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_1_tab.Address11tab_sx" table="ADDRESS_11tab_sx">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??????? <join table="join_11tab_sx"

????????????? optional="true"

????????????? inverse="true">

??????????? <key column="addressid"

???????????????? unique="true"/>

??????????? <many-to-one name="person11tab_sx" column="personid"

???????????????????????? not-null="true" unique="true"/>

??????? </join>

??? </class>

</hibernate-mapping>

?

六、測試方法

?

public class Test_11tab_sx {

??? public static void main(String[] args){

??????? Address11tab_sx add = new Address11tab_sx();

??????? Person11tab_sx p = new Person11tab_sx();

?

??????? add.setAddressdetail("鄭州市經(jīng)三路");

??????? p.setAge(12);

??????? p.setName("wudalang");

?

??????? add.setPerson11tab_sx(p);

??????? p.setAddress11tab_sx(add);

?

??????? Session session = HibernateUtil.getCurrentSession();

??????? Transaction tx = session.beginTransaction();

??????? session.saveOrUpdate(p);

??????? session.saveOrUpdate(add);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

?

七、測試結(jié)果

?

1) :正常保存.

??????? session.saveOrUpdate(p);

??????? session.saveOrUpdate(add);

?

Hibernate: insert into PERSON_11tab_sx (name, age) values (?, ?)

Hibernate: insert into ADDRESS_11tab_sx (addressdetail) values (?)

Hibernate: insert into join_11tab_sx (addressid, personid) values (?, ?)

Hibernate 一對多外鍵雙向關(guān)聯(lián)

?

一、模型介紹

?

一個人（Person）對應(yīng)多個地址（Address）。

?

二、實體（省略getter、setter方法）

?

public class Person1nfk_sx implements Serializable {

??? private int personid;

??? private String name;

??? private int age;

??? private Set addresses=new HashSet();

?

public class Address1nfk_sx implements Serializable {

??? private int addressid;

??? private String addressdetail;

??? private Person1nfk_sx person1nfkSx;

?

三、表模型

?

mysql> desc person_1nfk_sx;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

?

mysql> desc address_1nfk_sx;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

| personid????? | int(11)????? | NO?? | MUL |???????? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

?

四、生成的SQL腳本

?

? /* Formatted on 2007/08/22 17:42 (QP5 v5.50) */

? CREATE TABLE `address_1nfk` (

??? `addressid` int(11) NOT NULL auto_increment,

??? `addressdetail` varchar(255) default NULL,

??? `personid` int(11) default NULL,

??? PRIMARY KEY? (`addressid`),

??? KEY `FK9B93456DA6D6C1F5` (`personid`),

??? CONSTRAINT `FK9B93456DA6D6C1F5` FOREIGN KEY (`personid`) REFERENCES `person_1nfk` (`personid`)

? ) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

?

? /* Formatted on 2007/08/22 17:42 (QP5 v5.50) */

? CREATE TABLE `person_1nfk` (

??? `personid` int(11) NOT NULL auto_increment,

??? `name` varchar(255) default NULL,

??? `age` int(11) default NULL,

??? PRIMARY KEY? (`personid`)

? ) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

五、映射方法

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_n_fk.Person1nfk_sx" table="PERSON_1nfk_sx">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--映射集合屬性，關(guān)聯(lián)到持久化類-->

??????? <set name="addresses" inverse="true" cascade="all">

??????????? <!--column用于指定外鍵列名-->

??????????? <key column="personid" not-null="true"/>

??????????? <!--映射關(guān)聯(lián)類-->

??????????? <one-to-many class="com.lavasoft.sx._1_n_fk.Address1nfk_sx"/>

??????? </set>

??? </class>

</hibernate-mapping>

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_n_fk.Address1nfk_sx" table="ADDRESS_1nfk_sx">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??????? <!--映射關(guān)聯(lián)屬性，column屬性指定外鍵列名-->

??????? <many-to-one name="person1nfk"

???????????????????? class="com.lavasoft.sx._1_n_fk.Person1nfk_sx"

???????????????????? fetch="select"

???????????????????? cascade="save-update">

??????????? <column name="personid" not-null="true"/>

??????? </many-to-one>

??? </class>

</hibernate-mapping>

?

六、測試方法

?

public class Test_1nfk_sx {

??? public static void main(String[] args){

??????? Address1nfk_sx add1=new Address1nfk_sx();

??????? Address1nfk_sx add2=new Address1nfk_sx();

??????? Person1nfk_sx p=new Person1nfk_sx();

?

??????? add1.setAddressdetail("鄭州市經(jīng)三路");

??????? add2.setAddressdetail("合肥市宿州路");

??????? p.setName("wang");

??????? p.setAge(30);

?

??????? p.getAddresses().add(add1);

??????? p.getAddresses().add(add2);

??????? add1.setPerson1nfk(p);

????? ??add2.setPerson1nfk(p);

?

??????? Session session= HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

??????? session.save(p);

??????? session.saveOrUpdate(add1);

??????? session.saveOrUpdate(add2);

? ??????tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

?

七、測試結(jié)果

?

1) :正常保存.

??????? session.save(p);

??????? session.saveOrUpdate(add1);

??????? session.saveOrUpdate(add2);

?

Hibernate: insert into PERSON_1nfk_sx (name, age) values (?, ?)

Hibernate: insert into ADDRESS_1nfk_sx (addressdetail, personid) values (?, ?)

Hibernate: insert into ADDRESS_1nfk_sx (addressdetail, personid) values (?, ?)

Hibernate 一對多連接表雙向關(guān)聯(lián)

?

一、模型介紹

?

一個人（Person）對應(yīng)多個地址（Address）。

?

二、實體（省略getter、setter方法）

?

public class Person1ntab_sx {

??? private int personid;

??? private String name;

??? private int age;

??? private Set addresses=new HashSet();

?

public class Address1ntab_sx {

??? private int addressid;

??? private String addressdetail;

??? private Person1ntab_sx person1ntab_sx;

?

三、表模型

?

mysql> desc person_1ntab_sx;

+----------+--------------+------+-----+---------+----------------+

| Field??? | Type???????? | Null | Key | Default | Extra????????? |

+----------+--------------+------+-----+---------+----------------+

| personid | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| name???? | varchar(255) | YES? |???? | NULL??? |??????????????? |

| age????? | int(11)????? | YES? |???? | NULL??? |??????????????? |

+----------+--------------+------+-----+---------+----------------+

?

mysql> desc address_1ntab_sx;

+---------------+--------------+------+-----+---------+----------------+

| Field???????? | Type???????? | Null | Key | Default | Extra????????? |

+---------------+--------------+------+-----+---------+----------------+

| addressid???? | int(11)????? | NO?? | PRI | NULL??? | auto_increment |

| addressdetail | varchar(255) | YES? |???? | NULL??? |??????????????? |

+---------------+--------------+------+-----+---------+----------------+

?

mysql> desc join_1ntab_sx;

+-----------+---------+------+-----+---------+-------+

| Field???? | Type??? | Null | Key | Default | Extra |

+-----------+---------+------+-----+---------+-------+

| addressid | int(11) | NO?? | PRI |???????? |?????? |

| personid? | int(11) | NO?? | PRI |???????? |?????? |

+-----------+---------+------+-----+---------+-------+

?

四、生成的SQL腳本

?

/* Formatted on 2007/08/22 17:52 (QP5 v5.50) */

CREATE TABLE `address_1ntab_sx` (

? `addressid` int(11) NOT NULL auto_increment,

? `addressdetail` varchar(255) default NULL,

? PRIMARY KEY? (`addressid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/22 17:52 (QP5 v5.50) */

CREATE TABLE `person_1ntab_sx` (

? `personid` int(11) NOT NULL auto_increment,

? `name` varchar(255) default NULL,

? `age` int(11) default NULL,

? PRIMARY KEY? (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

/* Formatted on 2007/08/22 17:52 (QP5 v5.50) */

CREATE TABLE `join_1ntab_sx` (

? `addressid` int(11) NOT NULL,

? `personid` int(11) NOT NULL,

? PRIMARY KEY? (`personid`,`addressid`),

? KEY `FK8F869F61F93DDD6` (`personid`),

? KEY `FK8F869F61FC0F682A` (`addressid`),

? CONSTRAINT `FK8F869F61FC0F682A` FOREIGN KEY (`addressid`) REFERENCES `address_1ntab_sx` (`addressid`),

? CONSTRAINT `FK8F869F61F93DDD6` FOREIGN KEY (`personid`) REFERENCES `person_1ntab_sx` (`personid`)

) ENGINE=InnoDB DEFAULT CHARSET=gbk;

?

五、映射方法

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_n_tab.Person1ntab_sx" table="PERSON_1ntab_sx">

??????? <id name="personid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="name"/>

??????? <property name="age"/>

??????? <!--映射集合屬性，關(guān)聯(lián)到持久化類-->

??????? <!--table="join_1ntab_sx"指定了連接表的名字-->

??????? <set name="addresses"

?????????? ??table="join_1ntab_sx"

???????????? cascade="all">

??????????? <!--column="personid"指定連接表中關(guān)聯(lián)當前實體類的列名-->

??????????? <key column="personid" not-null="true"/>

??????????? <!--unique="true"表示當前實體類是"1",不是"n"-->

??????????? <many-to-many column="addressid"

????????????????????????? unique="true"

????????????????????????? class="com.lavasoft.sx._1_n_tab.Address1ntab_sx"/>

??????? </set>

??? </class>

</hibernate-mapping>

?

<hibernate-mapping>

??? <class name="com.lavasoft.sx._1_n_tab.Address1ntab_sx"

?????????? table="ADDRESS_1ntab_sx">

??????? <id name="addressid">

??????????? <generator class="identity"/>

??????? </id>

??????? <property name="addressdetail"/>

??????? <!--映射關(guān)聯(lián)屬性，column屬性指定外鍵列名-->

??????? <join?? table="join_1ntab_sx"

??????????????? inverse="true"

????????????? optional="true">

??????????? <key column="addressid"/>

??????????? <many-to-one name="person1ntab_sx"

???????????????????????? column="personid"

???????????????????????? cascade="all"

???????????????????????? not-null="true"/>

??????? </join>

??? </class>

</hibernate-mapping>

?

六、測試方法

?

public class Test_1ntab_sx {

??? public static void main(String[] args){

??????? Address1ntab_sx add1=new Address1ntab_sx();

??????? Address1ntab_sx add2=new Address1ntab_sx();

??????? Person1ntab_sx p=new Person1ntab_sx();

?

??????? add1.setAddressdetail("鄭州市經(jīng)三路");

????? ??add2.setAddressdetail("合肥市宿州路");

??????? p.setName("wang");

??????? p.setAge(30);

?

??????? p.getAddresses().add(add1);

??????? p.getAddresses().add(add2);

??????? add1.setPerson1ntab_sx(p);

??????? add2.setPerson1ntab_sx(p);

?

?? ?????Session session= HibernateUtil.getCurrentSession();

??????? Transaction tx=session.beginTransaction();

//??????? session.save(p);

??????? session.saveOrUpdate(add1);

??????? session.saveOrUpdate(add2);

??????? tx.commit();

??????? HibernateUtil.closeSession();

??? }

}

?

七、測試結(jié)果

?

1) :正常保存.

//??????? session.save(p);

??????? session.saveOrUpdate(add1);

??????? session.saveOrUpdate(add2);

?

Hibernate: insert into PERSON_1ntab_sx (name, age) values (?, ?)

Hibernate: insert into ADDRESS_1ntab_sx (addressdetail) values (?)

Hibernate: insert into ADDRESS_1ntab_sx (addressdetail) values (?)

Hibernate: insert into join_1ntab_sx (personid, addressid) values (?, ?)

Hibernate: insert into join_1ntab_sx (personid, addressid) values (?, ?)