Hibernate關聯(lián)關系映射配置

1、hibernate關聯(lián)關系映射配置2一、一對一單向外鍵關聯(lián)：21.1目錄結構21.2 annotation方式21.3 xml方式41.4 hibernate配置文件7二、一對一雙向外鍵關聯(lián)72.1 annotation方式72.2 xml方式9三、一對一單向主鍵關聯(lián)（不重要）123.1 annotation方式123.2 xml方式14四、一對一雙向主鍵關聯(lián)（不重要）164.1 annotation方式163.2 xml方式19五、組件映射215.1 annotation方式215.2 xml方式23六、多對一單向關聯(lián)256.1 annotation方式256.2 xml方式27七、一對多單

2、向關聯(lián)297.1 annotation方式297.2 xml方式31八、一對多、多對一雙向關聯(lián)348.1 annotation方式348.2 xml方式36九、多對多單向關聯(lián)398.1 annotation方式398.2 xml方式41十、多對多雙向關聯(lián)448.1 annotation方式448.2 xml方式46hibernate關聯(lián)關系映射配置一、 一對一單向外鍵關聯(lián)：1.1目錄結構圖1-1 目錄結構圖1.2 annotation方式1.2.1 類圖圖1-2 類關聯(lián)關系圖1.2.2數(shù)據(jù)庫表結構圖1-3數(shù)據(jù)庫表結構圖1.2.3 實體類package com.rongqq.hibernate3

3、.annotation.entity;import java.math.bigdecimal;import javax.persistence.column;import javax.persistence.entity;import javax.persistence.generatedvalue;import javax.persistence.generationtype;import javax.persistence.id;import javax.persistence.onetoone;import javax.persistence.sequencegenerator;enti

4、ty(name=h_husband_)sequencegenerator(name=husband_seq_gene, sequencename=husband_seq, allocationsize=1)public class husband private bigdecimal id;private string name;private wife wife;idcolumn(precision=4, scale=0)generatedvalue(strategy=generationtype.sequence, generator=husband_seq_gene)public big

5、decimal getid() return id;column(length=30)public string getname() return name;onetoone/joincolumn(name=wife_id)/不寫也沒問題，自動生成的字段也叫wife_idpublic wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(wife wife) thi

6、s.wife = wife;package com.rongqq.hibernate3.annotation.entity;import java.math.bigdecimal;import javax.persistence.column;import javax.persistence.entity;import javax.persistence.generatedvalue;import javax.persistence.generationtype;import javax.persistence.id;import javax.persistence.sequencegener

7、ator;entity(name=h_wife_)sequencegenerator(name=wife_seq_gene, sequencename=wife_seq)public class wife private bigdecimal id;private string name;idcolumn(precision=4)generatedvalue(strategy=generationtype.sequence, generator=wife_seq_gene)public bigdecimal getid() return id;public void setid(bigdeci

8、mal id) this.id = id;column(length=30)public string getname() return name;public void setname(string name) = name;1.3 xml方式1.3.1 類圖圖1-4 類關聯(lián)關系圖1.3.2 數(shù)據(jù)庫表結構圖1-5數(shù)據(jù)庫表結構圖1.3.3 實體類package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_husband private bigdecimal id;

9、private string name;private xml_wife wife;public bigdecimal getid() return id;public string getname() return name;public xml_wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(xml_wife wife) this.wife = wife;

10、package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_wife private bigdecimal id;private string name;public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;public string getname() return name;public void setname(string name) = name

11、;1.3.4 對象關系映射文件h_student_seq_xml h_student_seq_xml 1.4 hibernate配置文件oracle.jdbc.driver.oracledriverjdbc:oracle:thin::1521:silencecnusercn8303061threadorg.hibernate.cache.nocacheprovidertruetrueorg.hibernate.dialect.oracle9dialect!-update-二、一對一雙向外鍵關聯(lián)2.1 annotation方式2.1.1 類圖圖2-1類關聯(lián)關系圖2.1.2 數(shù)據(jù)

12、庫結構圖圖2-2數(shù)據(jù)庫表結構圖2.1.3 實體類entity(name=h_husband_)sequencegenerator(name=husband_seq_gene, sequencename=husband_seq, allocationsize=1)public class husband private bigdecimal id;private string name;private wife wife;idcolumn(precision=4, scale=0)generatedvalue(strategy=generationtype.sequence, generator

13、=husband_seq_gene)public bigdecimal getid() return id;column(length=30)public string getname() return name;onetoone/joincolumn(name=wife_id)/不寫也沒問題，自動生成的字段也叫wife_idpublic wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public

14、 void setwife(wife wife) this.wife = wife;entity(name=h_wife_)sequencegenerator(name=wife_seq_gene, sequencename=wife_seq)public class wife private bigdecimal id;private string name;private husband husband;idcolumn(precision=4)generatedvalue(strategy=generationtype.sequence, generator=wife_seq_gene)

15、public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;column(length=30)public string getname() return name;public void setname(string name) = name;onetoone(mappedby=wife)public husband gethusband() return husband;public void sethusband(husband husband) this.husb

16、and = husband;2.2 xml方式2.2.1 類圖圖2-3 類關聯(lián)關系圖2.2.2 數(shù)據(jù)庫結構圖2.2.3 實體類package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_husband private bigdecimal id;private string name;private xml_wife wife;public bigdecimal getid() return id;public string getname() return name;public

17、xml_wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(xml_wife wife) this.wife = wife;package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_wife private bigdecimal id;private

18、string name;private xml_husband husband;public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;public string getname() return name;public void setname(string name) = name;public xml_husband gethusband() return husband;public void sethusband(xml_husband husband) t

19、his.husband = husband;2.2.4 對象關系映射文件h_student_seq_xml h_student_seq_xml 三、一對一單向主鍵關聯(lián)（不重要）3.1 annotation方式3.1.1 類圖圖3-1 類關聯(lián)關系圖3.1.2 數(shù)據(jù)庫表結構圖3-2 數(shù)據(jù)庫表結構圖3.1.3 實體類package com.rongqq.hibernate3.annotation.entity;import java.math.bigdecimal;import javax.persistence.column;import javax.persistence.entity;impo

20、rt javax.persistence.generatedvalue;import javax.persistence.generationtype;import javax.persistence.id;import javax.persistence.onetoone;import javax.persistence.primarykeyjoincolumn;import javax.persistence.sequencegenerator;entity(name=h_husband_)sequencegenerator(name=husband_seq_gene, sequencen

21、ame=husband_seq, allocationsize=1)public class husband private bigdecimal id;private string name;private wife wife;idcolumn(precision=4, scale=0)generatedvalue(strategy=generationtype.sequence, generator=husband_seq_gene)public bigdecimal getid() return id;column(length=30)public string getname() re

22、turn name;onetooneprimarykeyjoincolumnpublic wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(wife wife) this.wife = wife;package com.rongqq.hibernate3.annotation.entity;import java.math.bigdecimal;import j

23、avax.persistence.column;import javax.persistence.entity;import javax.persistence.generatedvalue;import javax.persistence.generationtype;import javax.persistence.id;import javax.persistence.sequencegenerator;entity(name=h_wife_)sequencegenerator(name=wife_seq_gene, sequencename=wife_seq)public class

24、wife private bigdecimal id;private string name;idcolumn(precision=4)generatedvalue(strategy=generationtype.sequence, generator=wife_seq_gene)public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;column(length=30)public string getname() return name;public void setname(stri

25、ng name) = name;注：只生成了表，但是沒有外鍵約束，具體實現(xiàn)還需要查找3.2 xml方式3.2.1 類圖圖3-3 類關聯(lián)關系圖3.2.2 數(shù)據(jù)庫表結構圖3-4 數(shù)據(jù)庫表結構圖3.2.3 實體類package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_husband private bigdecimal id;private string name;private xml_wife wife;public bigdecimal getid() ret

26、urn id;public string getname() return name;public xml_wife getwife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(xml_wife wife) this.wife = wife;package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;im

27、port com.rongqq.hibernate3.annotation.entity.husband;public class xml_wife private bigdecimal id;private string name;public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;public string getname() return name;public void setname(string name) = name;3.2.4 對象映射文件wif

28、e h_student_seq_xml 四、一對一雙向主鍵關聯(lián)（不重要）4.1 annotation方式4.1.1 類圖圖4-1 類關聯(lián)關系圖4.1.2 數(shù)據(jù)庫表結構圖4-2 數(shù)據(jù)庫表結構圖4.1.3 實體類package com.rongqq.hibernate3.annotation.entity;import java.math.bigdecimal;import javax.persistence.column;import javax.persistence.entity;import javax.persistence.generatedvalue;import javax.per

29、sistence.generationtype;import javax.persistence.id;import javax.persistence.onetoone;import javax.persistence.primarykeyjoincolumn;import javax.persistence.sequencegenerator;entity(name=h_husband_)sequencegenerator(name=husband_seq_gene, sequencename=husband_seq, allocationsize=1)public class husba

30、nd private bigdecimal id;private string name;private wife wife;idcolumn(precision=4, scale=0)generatedvalue(strategy=generationtype.sequence, generator=husband_seq_gene)public bigdecimal getid() return id;column(length=30)public string getname() return name;onetooneprimarykeyjoincolumnpublic wife ge

31、twife() return wife;public void setid(bigdecimal id) this.id = id;public void setname(string name) = name;public void setwife(wife wife) this.wife = wife;package com.rongqq.hibernate3.annotation.entity;import java.math.bigdecimal;import javax.persistence.column;import javax.persistence.ent

32、ity;import javax.persistence.generatedvalue;import javax.persistence.generationtype;import javax.persistence.id;import javax.persistence.onetoone;import javax.persistence.primarykeyjoincolumn;import javax.persistence.sequencegenerator;entity(name=h_wife_)sequencegenerator(name=wife_seq_gene, sequenc

33、ename=wife_seq)public class wife private bigdecimal id;private string name;private husband husband;idcolumn(precision=4)generatedvalue(strategy=generationtype.sequence, generator=wife_seq_gene)public bigdecimal getid() return id;public void setid(bigdecimal id) this.id = id;column(length=30)public s

34、tring getname() return name;public void setname(string name) = name;onetooneprimarykeyjoincolumnpublic husband gethusband() return husband;public void sethusband(husband husband) this.husband = husband;注：同樣不產生關聯(lián)關系，具體實現(xiàn)待查3.2 xml方式4.2.1 類圖圖4-3 類關聯(lián)關系圖4.2.2 數(shù)據(jù)庫表結構圖4-4 數(shù)據(jù)庫表結構圖4.2.3 實體類package com.rongqq.hibernate3.xml.entity;import java.math.bigdecimal;public class xml_husband private bigdecimal id;private string name;private xml_wife wife;public bigdecimal getid() return id;public string getname() return name;public xml_wife getwife() return wife