Hibernate_關(guān)聯(lián)關(guān)系映射.doc

Hibernate關(guān)聯(lián)關(guān)系映射配置2一、一對一單向外鍵關(guān)聯(lián)：21.1目錄結(jié)構(gòu)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(guān)聯(lián)72.1 Annotation方式72.2 XML方式9三、一對一單向主鍵關(guān)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(guān)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(guān)聯(lián)256.1 Annotation方式256.2 XML方式27七、一對多單向關(guān)聯(lián)297.1 Annotation方式297.2 XML方式31八、一對多、多對一雙向關(guān)聯(lián)348.1 Annotation方式348.2 XML方式36九、多對多單向關(guān)聯(lián)398.1 Annotation方式398.2 XML方式41十、多對多雙向關(guān)聯(lián)448.1 Annotation方式448.2 XML方式46Hibernate關(guān)聯(lián)關(guān)系映射配置一、 一對一單向外鍵關(guān)聯(lián)：1.1目錄結(jié)構(gòu)圖1-1 目錄結(jié)構(gòu)圖1.2 Annotation方式1.2.1 類圖圖1-2 類關(guān)聯(lián)關(guān)系圖1.2.2數(shù)據(jù)庫表結(jié)構(gòu)圖1-3數(shù)據(jù)庫表結(jié)構(gòu)圖1.2.3 實(shí)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.persistence.GenerationType;import javax.persistence.Id;import javax.persistence.OneToOne;import javax.persistence.SequenceGenerator;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=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(dòng)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) this.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.SequenceGenerator;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(BigDecimal 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(guān)聯(lián)關(guān)系圖1.3.2 數(shù)據(jù)庫表結(jié)構(gòu)圖1-5數(shù)據(jù)庫表結(jié)構(gòu)圖1.3.3 實(shí)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;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 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;1.3.4 對象關(guān)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(guān)聯(lián)2.1 Annotation方式2.1.1 類圖圖2-1類關(guān)聯(lián)關(guān)系圖2.1.2 數(shù)據(jù)庫結(jié)構(gòu)圖圖2-2數(shù)據(jù)庫表結(jié)構(gòu)圖2.1.3 實(shí)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=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(dòng)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) 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)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.husband = husband;2.2 XML方式2.2.1 類圖圖2-3 類關(guān)聯(lián)關(guān)系圖2.2.2 數(shù)據(jù)庫結(jié)構(gòu)圖2.2.3 實(shí)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;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 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) this.husband = husband;2.2.4 對象關(guān)系映射文件H_STUDENT_SEQ_XML H_STUDENT_SEQ_XML 三、一對一單向主鍵關(guān)聯(lián)（不重要）3.1 Annotation方式3.1.1 類圖圖3-1 類關(guān)聯(lián)關(guān)系圖3.1.2 數(shù)據(jù)庫表結(jié)構(gòu)圖3-2 數(shù)據(jù)庫表結(jié)構(gòu)圖3.1.3 實(shí)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.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, 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 BigDecimal getId() return id;Column(length=30)public String getName() return 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 javax.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 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(String name) = name;注：只生成了表，但是沒有外鍵約束，具體實(shí)現(xiàn)還需要查找3.2 XML方式3.2.1 類圖圖3-3 類關(guān)聯(lián)關(guān)系圖3.2.2 數(shù)據(jù)庫表結(jié)構(gòu)圖3-4 數(shù)據(jù)庫表結(jié)構(gòu)圖3.2.3 實(shí)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;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;import 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wife H_STUDENT_SEQ_XML 四、一對一雙向主鍵關(guān)聯(lián)（不重要）4.1 Annotation方式4.1.1 類圖圖4-1 類關(guān)聯(lián)關(guān)系圖4.1.2 數(shù)據(jù)庫表結(jié)構(gòu)圖4-2 數(shù)據(jù)庫表結(jié)構(gòu)圖4.1.3 實(shí)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.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, 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 BigDecimal getId() return id;Column(length=30)public String getName() return 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 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.PrimaryKeyJoinColumn;import javax.persistence.SequenceGenerator;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)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;OneToOnePrimaryKeyJoinColumnpublic Husband getHusband() return husband;public void setHusband(Husband husband) this.husband = husband;注：同樣不產(chǎn)生關(guān)聯(lián)關(guān)系，具體實(shí)現(xiàn)待查3.2 XML方式4.2.1 類圖圖4-3 類關(guān)聯(lián)關(guān)系圖4.2.2 數(shù)據(jù)庫表結(jié)構(gòu)圖4-4 數(shù)據(jù)庫表結(jié)構(gòu)圖4.2.3 實(shí)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