就是创建两个单向关联的表。
其中两个实体类是这样的。
1.Husband类：
package com.qw.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;@Entity
public class Husband {
private int id;
private String name;
private Wife wife;
@Id
@GeneratedValue
public int getId() {
return id;
}
public String getName() {
return name;
}
@OneToOne
@JoinColumn(name="wifeId")
public Wife getWife() {
return wife;
}
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setWife(Wife wife) {
this.wife = wife;
}
}2.Wife类
package com.qw.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;@Entity
public class Wife {
private int id;
private String name;
@Id
@GeneratedValue
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;
}
}3.测试类：
package com.qw.model;import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;public class HibernateORMappingTest {
private static SessionFactory sessionFactory;
@BeforeClass
public static void beforeClass() {
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
}
@AfterClass
public static void afterClass() {
sessionFactory.close();
}
@Test
public void testSchemaExport() {
new SchemaExport(new AnnotationConfiguration().configure()).create(false, true);
}
/*public static void main(String[] args) {
beforeClass();
}*/
}想用testSchemaExport方法生成表，可是老是提示出错。错误就指在测试方法里的new SchemaExport(new AnnotationConfiguration().configure()).create(false, true)这一句？我感觉是那两个实体类有问题，因为我用一个很简单的实体类测试类，可以正常生成表，就是想生成这种关联关系的表时就出错！高手帮帮忙啊！
其中两个实体类是这样的。
1.Husband类：
package com.qw.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;@Entity
public class Husband {
private int id;
private String name;
private Wife wife;
@Id
@GeneratedValue
public int getId() {
return id;
}
public String getName() {
return name;
}
@OneToOne
@JoinColumn(name="wifeId")
public Wife getWife() {
return wife;
}
public void setId(int id) {
this.id = id;
}
public void setName(String name) {
this.name = name;
}
public void setWife(Wife wife) {
this.wife = wife;
}
}2.Wife类
package com.qw.model;import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;@Entity
public class Wife {
private int id;
private String name;
@Id
@GeneratedValue
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;
}
}3.测试类：
package com.qw.model;import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;public class HibernateORMappingTest {
private static SessionFactory sessionFactory;
@BeforeClass
public static void beforeClass() {
sessionFactory = new AnnotationConfiguration().configure().buildSessionFactory();
}
@AfterClass
public static void afterClass() {
sessionFactory.close();
}
@Test
public void testSchemaExport() {
new SchemaExport(new AnnotationConfiguration().configure()).create(false, true);
}
/*public static void main(String[] args) {
beforeClass();
}*/
}想用testSchemaExport方法生成表，可是老是提示出错。错误就指在测试方法里的new SchemaExport(new AnnotationConfiguration().configure()).create(false, true)这一句？我感觉是那两个实体类有问题，因为我用一个很简单的实体类测试类，可以正常生成表，就是想生成这种关联关系的表时就出错！高手帮帮忙啊！
http://www.it.com.cn/f/edu/053/8/81678.htm
奇怪的是，我把@OneToOne改为@ManyToOne，即改为多对一关系，却很顺利的生成了两张表，这是怎么回事啊，为什么OneToOne不行，要怎么样才能建OneToOne关系的表？
如果是一对一单向外键关联就在@OneToOne下面加@JoinColumn(name="wifeId")
你的代码是尚学堂的吧，我运行了一下没有任何问题啊，想让别人帮你找错，最起码得把错误贴出来啊！
java.lang.NoSuchMethodError: javax.persistence.OneToOne.orphanRemoval()Z
at org.hibernate.cfg.AnnotationBinder.processElementAnnotations(AnnotationBinder.java:1567)
at org.hibernate.cfg.AnnotationBinder.processIdPropertiesIfNotAlready(AnnotationBinder.java:769)
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:733)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:636)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:359)
at org.hibernate.cfg.Configuration.generateDropSchemaScript(Configuration.java:838)
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:128)
at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:91)
at com.qw.model.HibernateORMappingTest.testSchemaExport(HibernateORMappingTest.java:34)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
我好像没有引入myeclipse中的包啊，我都是用的自己引入的包，如下：
hibernate3.jar
slf4j-api-1.5.8.jar
antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
javassist-3.9.0.GA.jar
jta-1.1.jar
log4j-1.2.16.jar
slf4j-log4j12-1.5.8.jar
hibernate-jpa-2.0-api-1.0.0.Final.jarmysql-connector-java-5.1.12-bin.jar
junit-4.8.1.jar
网上说是ejb和jpa冲突啊，这怎么解决？
进行调试，他新建了一个java project做的实验（配置环境和我的web project一致），通过了。后来在我的项目上调试，还是不行，最后没办法我就怀疑是工程的不同造成的，发现是由于web project里带了j2ee1.5 Libraries与hibernate3.5里jar包产生了冲突而造成的错误。解决方案是：将web project的j2ee1.5 Libraries换成j2ee1.4 Libraries希望能对你及遇到这个问题的同学们有帮助！
这个问题都把我郁闷死了