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Hibernate一对一单向外键关联

2016-04-17 11:25 399 查看
一、一对一单向外键关联：

　　一对一单向外键关联主要用到了以下两个注解：

　　1、OneToOne(cascade=CasecadeTYPE.ALL);

　　　　cascade=CasecadeTYPE.ALL：表示的是表之间的级联关系，比如级联删除，级联更新等，ALL表示的是全级联。

　　2、JoinColumn(name="sid"unique=true);

　　　　JoinColumn：表示将被控类的外键写在主控类中

　　主要是用到主表中。

　　需要注意的点是：在保存时应该先保存外键对象再保存主表对象；

　　

问题一：在编写实体类Students.java的时候发生一个错误：

Typemismatch:cannotconvertfromCascadeTypetoCascadeType[]


检查之后发现错误是导致的原因是注解注解引用的包出现了问题：

@OneToOne(cascade=CascadeType.ALL)//表示全级联关系
@Column(name="pid"unique=true)

导致错误的包：

importorg.hibernate.annotations.GenericGenerator;
importorg.hibernate.metamodel.binding.CascadeType;


正确的包：

importjavax.persistence.OneToOne;


问题一：在一切都准备好了，要生成表结构的同时出现了第二个问题：问题的描述是这样的：

2016-4-1710:38:46org.hibernate.annotations.common.Version<clinit>
INFO:HCANN000001:HibernateCommonsAnnotations{4.0.2.Final}
2016-4-1710:38:46org.hibernate.VersionlogVersion
INFO:HHH000412:HibernateCore{4.2.21.Final}
2016-4-1710:38:46org.hibernate.cfg.Environment<clinit>
INFO:HHH000206:hibernate.propertiesnotfound
2016-4-1710:38:46org.hibernate.cfg.EnvironmentbuildBytecodeProvider
INFO:HHH000021:Bytecodeprovidername:javassist
2016-4-1710:38:46org.hibernate.cfg.Configurationconfigure
INFO:HHH000043:Configuringfromresource:/hibernate.cfg.xml
2016-4-1710:38:46org.hibernate.cfg.ConfigurationgetConfigurationInputStream
INFO:HHH000040:Configurationresource:/hibernate.cfg.xml
2016-4-1710:38:46org.hibernate.cfg.ConfigurationdoConfigure
INFO:HHH000041:ConfiguredSessionFactory:null
2016-4-1710:38:46org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
WARN:HHH000402:UsingHibernatebuilt-inconnectionpool(notforproductionuse!)
2016-4-1710:38:46org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000115:Hibernateconnectionpoolsize:20
2016-4-1710:38:46org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000006:Autocommitmode:false
2016-4-1710:38:46org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000401:usingdriver[com.mysql.jdbc.Driver]atURL[jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8]
2016-4-1710:38:46org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000046:Connectionproperties:{user=root,password=****}
2016-4-1710:38:47org.hibernate.dialect.Dialect<init>
INFO:HHH000400:Usingdialect:org.hibernate.dialect.MySQLDialect
2016-4-1710:38:47org.hibernate.engine.jdbc.internal.LobCreatorBuilderuseContextualLobCreation
INFO:HHH000423:DisablingcontextualLOBcreationasJDBCdriverreportedJDBCversion[3]lessthan4


最主要的是这一句：

INFO:HHH000423:DisablingcontextualLOBcreationasJDBCdriverreportedJDBCversion[3]lessthan4
貌似是我的jdbc的版本太低，所以导致测试没有通过。但是这不是导致错误的主要原因，版本低一般不会导致问题出现，

有一篇博客有同样的问题但是还是执行成功了：http://blog.csdn.net/xwin1989/article/details/7380736

最主要的原因是如下的报错信息：


org.hibernate.AnnotationException:@Column(s)notallowedona@OneToOneproperty:oto_fk.Students.card
atorg.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1745)
atorg.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:895)
atorg.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:728)
atorg.hibernate.cfg.Configuration$MetadataSourceQueue.processAnnotatedClassesQueue(Configuration.java:3625)
atorg.hibernate.cfg.Configuration$MetadataSourceQueue.processMetadata(Configuration.java:3579)
atorg.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1381)
atorg.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1786)
atoto_fk.TestStudents.testShemaExport(TestStudents.java:24)
atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
atjava.lang.reflect.Method.invoke(Method.java:597)
atorg.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
atorg.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
atorg.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
atorg.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
atorg.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
atorg.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
atorg.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
atorg.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
atorg.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
atorg.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
atorg.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
atorg.junit.runners.ParentRunner.run(ParentRunner.java:300)
atorg.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
atorg.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
atorg.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)


我的Students.java实体类的类容是这样的：


packageoto_fk;

importjava.io.Serializable;
importjava.util.Date;

importjavax.persistence.CascadeType;
importjavax.persistence.Column;
importjavax.persistence.Embedded;
importjavax.persistence.EmbeddedId;
importjavax.persistence.Entity;/*JPA注解*/
importjavax.persistence.GeneratedValue;
importjavax.persistence.GenerationType;
importjavax.persistence.Id;
importjavax.persistence.OneToOne;
importjavax.persistence.Table;
importjavax.persistence.Transient;

/**
*学生实体类
*@authorAdministrator
*
*/
//@Entity(name="t_students")
@Entity//表示这是一个实体类
//schema:表示数据库的名称
//name:表示数据库的表名
//Embedddable注解表示一个非Entity类，但是可以嵌入到另外一个实体类中作为属性而存在
publicclassStudentsimplementsSerializable{

privateIdCardcard;
privateintsid;//将学号改成字符串类型
privateStringgender;//性别
privateDatebirthday;//出生日期
privateStringmajor;//专业

publicStudents(IdCardcard,intsid,Stringgender,Datebirthday,
Stringmajor){
super();
this.card=card;
this.sid=sid;
this.gender=gender;
this.birthday=birthday;
this.major=major;
}

@OneToOne(cascade=CascadeType.ALL)//表示全级联关系
@Column(name="pid",unique=true)
publicIdCardgetCard(){
returncard;
}

publicvoidsetCard(IdCardcard){
this.card=card;
}

@Id
@GeneratedValue//主键自增
publicintgetSid(){
returnsid;
}

publicvoidsetSid(intsid){
this.sid=sid;
}

publicStringgetGender(){
returngender;
}

publicvoidsetGender(Stringgender){
this.gender=gender;
}

publicDategetBirthday(){
returnbirthday;
}

publicvoidsetBirthday(Datebirthday){
this.birthday=birthday;
}

publicStringgetMajor(){
returnmajor;
}

publicvoidsetMajor(Stringmajor){
this.major=major;
}

publicStudents()
{

}

}


导致错误的原因是：

@OneToOne(cascade=CascadeType.ALL)//表示全级联关系
@Column(name="pid",unique=true)
publicIdCardgetCard(){
returncard;
}


应该改成：

@OneToOne(cascade=CascadeType.ALL)//表示全级联关系
@JoinColumn(name="pid",unique=true)
publicIdCardgetCard(){
returncard;
}


以下将正确执行的代码贴出：

1、students.java实体类(主控类)：

packageoto_fk;

importjava.io.Serializable;
importjava.util.Date;

importjavax.persistence.CascadeType;
importjavax.persistence.Column;
importjavax.persistence.Embedded;
importjavax.persistence.EmbeddedId;
importjavax.persistence.Entity;/*JPA注解*/
importjavax.persistence.GeneratedValue;
importjavax.persistence.GenerationType;
importjavax.persistence.Id;
importjavax.persistence.JoinColumn;
importjavax.persistence.OneToOne;
importjavax.persistence.Table;
importjavax.persistence.Transient;

/**
*学生实体类
*@authorAdministrator
*
*/
//@Entity(name="t_students")
@Entity//表示这是一个实体类
//schema:表示数据库的名称
//name:表示数据库的表名
//Embedddable注解表示一个非Entity类，但是可以嵌入到另外一个实体类中作为属性而存在
publicclassStudentsimplementsSerializable{

privateIdCardcard;
privateintsid;//将学号改成字符串类型
privateStringgender;//性别
privateDatebirthday;//出生日期
privateStringmajor;//专业

publicStudents(IdCardcard,intsid,Stringgender,Datebirthday,
Stringmajor){
super();
this.card=card;
this.sid=sid;
this.gender=gender;
this.birthday=birthday;
this.major=major;
}

@OneToOne(cascade=CascadeType.ALL)//表示全级联关系
@JoinColumn(name="pid",unique=true)
publicIdCardgetCard(){
returncard;
}

publicvoidsetCard(IdCardcard){
this.card=card;
}

@Id
@GeneratedValue//主键自增
publicintgetSid(){
returnsid;
}

publicvoidsetSid(intsid){
this.sid=sid;
}

publicStringgetGender(){
returngender;
}

publicvoidsetGender(Stringgender){
this.gender=gender;
}

publicDategetBirthday(){
returnbirthday;
}

publicvoidsetBirthday(Datebirthday){
this.birthday=birthday;
}

publicStringgetMajor(){
returnmajor;
}

publicvoidsetMajor(Stringmajor){
this.major=major;
}

publicStudents()
{

}

}


2、IdCard实体类(被控类)：

packageoto_fk;

importjavax.persistence.Column;
importjavax.persistence.Entity;
importjavax.persistence.GeneratedValue;
importjavax.persistence.Id;

importorg.hibernate.annotations.GenericGenerator;

/*身份证类*/
@Entity
publicclassIdCard{

privateStringpid;//身份证号
privateStringsname;//学生姓名

//无参数的构造器
publicIdCard()
{

}

//带参数的构造器
publicIdCard(Stringpid,Stringsname){
super();
this.pid=pid;
this.sname=sname;
}

@Id//指定主键
@Column(length=18)//指定身份证的长度
//主键生成策略
@GenericGenerator(name="pid",strategy="assigned")
@GeneratedValue(generator="pid")
publicStringgetPid(){
returnpid;
}

publicvoidsetPid(Stringpid){
this.pid=pid;
}

publicStringgetSname(){
returnsname;
}

publicvoidsetSname(Stringsname){
this.sname=sname;
}
}


3、Hibernate.cfg.xml配置文件：

<?xmlversion="1.0"encoding="UTF-8"?>
<!DOCTYPEhibernate-configurationPUBLIC
"-//Hibernate/HibernateConfigurationDTD3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<!--old:http://hibernate.sourceforge.net/hibernate-configuration-3.6.dtd-->
<!--new:http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd-->
<!--:http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd-->
<hibernate-configuration>
<session-factory>
<!--显示sql语句-->
<propertyname="show_sql">true</property>
<propertyname="myeclipse.connection.profile">bookshop</property>
<!--<propertyname="connection.url">
jdbc:mysql://localhost:3306/bookshop
jdbc:mysql://localhost:3306/database?useUnicode=true&characterEncoding=UTF-8
</property>-->

<propertyname="connection.url">jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8</property>
<propertyname="connection.username">root</property>
<propertyname="connection.password">woaiwojia..123</property>
<propertyname="connection.driver_class">com.mysql.jdbc.Driver</property>
<propertyname="dialect">org.hibernate.dialect.MySQLDialect</property>
<propertyname="format_sql">true</property>
<propertyname="hbm2ddl.auto">update</property>
<propertyname="hibernate.current_session_context_class">thread</property>

<!--将实体类映射到数据库-->
<mappingclass="oto_fk.Students"/>
<mappingclass="oto_fk.IdCard"/>

</session-factory>
</hibernate-configuration>


4、测试用例：

packageoto_fk;

importorg.hibernate.SessionFactory;
importorg.hibernate.cfg.Configuration;
importorg.hibernate.service.ServiceRegistry;
importorg.hibernate.service.ServiceRegistryBuilder;
importorg.hibernate.tool.hbm2ddl.SchemaExport;
importorg.junit.Test;

publicclassTestStudents{

@Test
publicvoidtestShemaExport(){
//创建Hibernate配置对象
Configurationconfiguration=newConfiguration().configure();

//创建服务注册对象
ServiceRegistryserviceRegistry=
newServiceRegistryBuilder()
.applySettings(configuration.getProperties())
.buildServiceRegistry();

//创建sessionFactory
SessionFactorysessionFactory=configuration.buildSessionFactory(serviceRegistry);

//生成SchemaExport对象
SchemaExportexport=newSchemaExport(configuration);
//调用schemaExport的create生成数据库表结构
export.create(true,true);
}
}


5、数据库表生成log:

2016-4-1710:53:56org.hibernate.annotations.common.Version<clinit>
INFO:HCANN000001:HibernateCommonsAnnotations{4.0.2.Final}
2016-4-1710:53:56org.hibernate.VersionlogVersion
INFO:HHH000412:HibernateCore{4.2.21.Final}
2016-4-1710:53:56org.hibernate.cfg.Environment<clinit>
INFO:HHH000206:hibernate.propertiesnotfound
2016-4-1710:53:56org.hibernate.cfg.EnvironmentbuildBytecodeProvider
INFO:HHH000021:Bytecodeprovidername:javassist
2016-4-1710:53:56org.hibernate.cfg.Configurationconfigure
INFO:HHH000043:Configuringfromresource:/hibernate.cfg.xml
2016-4-1710:53:56org.hibernate.cfg.ConfigurationgetConfigurationInputStream
INFO:HHH000040:Configurationresource:/hibernate.cfg.xml
2016-4-1710:53:56org.hibernate.cfg.ConfigurationdoConfigure
INFO:HHH000041:ConfiguredSessionFactory:null
2016-4-1710:53:56org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
WARN:HHH000402:UsingHibernatebuilt-inconnectionpool(notforproductionuse!)
2016-4-1710:53:56org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000115:Hibernateconnectionpoolsize:20
2016-4-1710:53:56org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000006:Autocommitmode:false
2016-4-1710:53:56org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000401:usingdriver[com.mysql.jdbc.Driver]atURL[jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8]
2016-4-1710:53:56org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000046:Connectionproperties:{user=root,password=****}
2016-4-1710:53:56org.hibernate.dialect.Dialect<init>
INFO:HHH000400:Usingdialect:org.hibernate.dialect.MySQLDialect
2016-4-1710:53:56org.hibernate.engine.jdbc.internal.LobCreatorBuilderuseContextualLobCreation
INFO:HHH000423:DisablingcontextualLOBcreationasJDBCdriverreportedJDBCversion[3]lessthan4
2016-4-1710:53:57org.hibernate.engine.transaction.internal.TransactionFactoryInitiatorinitiateService
INFO:HHH000399:Usingdefaulttransactionstrategy(directJDBCtransactions)
2016-4-1710:53:57org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory<init>
INFO:HHH000397:UsingASTQueryTranslatorFactory
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000228:Runninghbm2ddlschemaupdate
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000102:Fetchingdatabasemetadata
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000396:Updatingschema
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:IdCard
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:Students
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:IdCard
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:Students
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:IdCard
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.DatabaseMetadatagetTableMetadata
INFO:HHH000262:Tablenotfound:Students
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000232:Schemaupdatecomplete
2016-4-1710:53:57org.hibernate.dialect.Dialect<init>
INFO:HHH000400:Usingdialect:org.hibernate.dialect.MySQLDialect
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaExportexecute
INFO:HHH000227:Runninghbm2ddlschemaexport
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
WARN:HHH000402:UsingHibernatebuilt-inconnectionpool(notforproductionuse!)
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000115:Hibernateconnectionpoolsize:20
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000006:Autocommitmode:false
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000401:usingdriver[com.mysql.jdbc.Driver]atURL[jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8]
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000046:Connectionproperties:{user=root,password=****}

altertableStudents
drop
foreignkeyFK_mryi31xkbwbosevquurf60ivb

droptableifexistsIdCard

droptableifexistsStudents

createtableIdCard(
pidvarchar(18)notnull,
snamevarchar(255),
primarykey(pid)
)

createtableStudents(
sidintegernotnullauto_increment,
birthdaydatetime,
gendervarchar(255),
majorvarchar(255),
pidvarchar(18),
primarykey(sid)
)

altertableStudents
addconstraintUK_mryi31xkbwbosevquurf60ivbunique(pid)

altertableStudents
addindexFK_mryi31xkbwbosevquurf60ivb(pid),
addconstraintFK_mryi31xkbwbosevquurf60ivb
foreignkey(pid)
referencesIdCard(pid)
2016-4-1710:53:57org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplstop
INFO:HHH000030:Cleaningupconnectionpool[jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8]
2016-4-1710:53:57org.hibernate.tool.hbm2ddl.SchemaExportexecute
INFO:HHH000230:Schemaexportcomplete


6、数据库表生成情况:





7、编写一个测试用例来测试一对一单向外键关联的效果:

@Test
publicvoidaddStudents()
{
//创建Hibernate配置对象
Configurationconfiguration=newConfiguration().configure();

//创建服务注册对象
ServiceRegistryserviceRegistry=
newServiceRegistryBuilder()
.applySettings(configuration.getProperties())
.buildServiceRegistry();

//创建sessionFactory
SessionFactorysessionFactory=configuration.buildSessionFactory(serviceRegistry);

//创建会话对象
Sessionsession=sessionFactory.getCurrentSession();
//开启事务
Transactiontx=session.beginTransaction();
//生成一个学生身份证对象
IdCardcard=newIdCard("888888888888888888","刘德华");
//生成一个学生对象
Studentsstu=newStudents(card,"男",newDate(),"计算机");
//先保存被控表对象(身份证)
session.save(card);
session.save(stu);
//提交事务
tx.commit();


Log：

2016-4-1711:19:45org.hibernate.annotations.common.Version<clinit>
INFO:HCANN000001:HibernateCommonsAnnotations{4.0.2.Final}
2016-4-1711:19:45org.hibernate.VersionlogVersion
INFO:HHH000412:HibernateCore{4.2.21.Final}
2016-4-1711:19:45org.hibernate.cfg.Environment<clinit>
INFO:HHH000206:hibernate.propertiesnotfound
2016-4-1711:19:45org.hibernate.cfg.EnvironmentbuildBytecodeProvider
INFO:HHH000021:Bytecodeprovidername:javassist
2016-4-1711:19:45org.hibernate.cfg.Configurationconfigure
INFO:HHH000043:Configuringfromresource:/hibernate.cfg.xml
2016-4-1711:19:45org.hibernate.cfg.ConfigurationgetConfigurationInputStream
INFO:HHH000040:Configurationresource:/hibernate.cfg.xml
2016-4-1711:19:45org.hibernate.cfg.ConfigurationdoConfigure
INFO:HHH000041:ConfiguredSessionFactory:null
2016-4-1711:19:45org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
WARN:HHH000402:UsingHibernatebuilt-inconnectionpool(notforproductionuse!)
2016-4-1711:19:45org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000115:Hibernateconnectionpoolsize:20
2016-4-1711:19:45org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000006:Autocommitmode:false
2016-4-1711:19:45org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000401:usingdriver[com.mysql.jdbc.Driver]atURL[jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8]
2016-4-1711:19:45org.hibernate.service.jdbc.connections.internal.DriverManagerConnectionProviderImplconfigure
INFO:HHH000046:Connectionproperties:{user=root,password=****}
2016-4-1711:19:46org.hibernate.dialect.Dialect<init>
INFO:HHH000400:Usingdialect:org.hibernate.dialect.MySQLDialect
2016-4-1711:19:46org.hibernate.engine.jdbc.internal.LobCreatorBuilderuseContextualLobCreation
INFO:HHH000423:DisablingcontextualLOBcreationasJDBCdriverreportedJDBCversion[3]lessthan4
2016-4-1711:19:46org.hibernate.engine.transaction.internal.TransactionFactoryInitiatorinitiateService
INFO:HHH000399:Usingdefaulttransactionstrategy(directJDBCtransactions)
2016-4-1711:19:46org.hibernate.hql.internal.ast.ASTQueryTranslatorFactory<init>
INFO:HHH000397:UsingASTQueryTranslatorFactory
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000228:Runninghbm2ddlschemaupdate
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000102:Fetchingdatabasemetadata
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000396:Updatingschema
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000261:Tablefound:hibernate.idcard
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000037:Columns:[pid,sname]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000108:Foreignkeys:[]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000126:Indexes:[primary]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000261:Tablefound:hibernate.students
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000037:Columns:[birthday,sid,gender,pid,major]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000108:Foreignkeys:[fk_mryi31xkbwbosevquurf60ivb]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.TableMetadata<init>
INFO:HHH000126:Indexes:[primary,fk_mryi31xkbwbosevquurf60ivb,uk_mryi31xkbwbosevquurf60ivb]
2016-4-1711:19:47org.hibernate.tool.hbm2ddl.SchemaUpdateexecute
INFO:HHH000232:Schemaupdatecomplete
Hibernate:
insert
into
IdCard
(sname,pid)
values
(?,?)
Hibernate:
insert
into
Students
(birthday,pid,gender,major)
values
(?,?,?,?)


数据库数据插入情况：

IdCard表



Students表：



一对一的单向外键关联到此结束，转载的同仁注明出处。谢谢！
                                            

                                        

                        
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