Java 无法在JUnit测试中生成EntityManagerFactory
一个应用程序在尝试构建它时给了我错误-它在测试时停止，这只是创建EntityManagerFactory。我还有一个main方法，其中包含一些代码，可以将实体持久化到数据库中，但在没有测试的情况下运行它也可以 这是一个测试输出Java 无法在JUnit测试中生成EntityManagerFactory,java,maven,junit,entitymanager,Java,Maven,Junit,Entitymanager,一个应用程序在尝试构建它时给了我错误-它在测试时停止，这只是创建EntityManagerFactory。我还有一个main方法，其中包含一些代码，可以将实体持久化到数据库中，但在没有测试的情况下运行它也可以 这是一个测试输出 Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.205 sec <<< FAILURE! test(sk.matejkvassay.musiclibrary.AlbumD
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 1.205 sec <<< FAILURE!
test(sk.matejkvassay.musiclibrary.AlbumDaoImplTest) Time elapsed: 1.135 sec <<< ERROR!
javax.persistence.PersistenceException: [PersistenceUnit: TestPU] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
at sk.matejkvassay.musiclibrary.AlbumDaoImplTest.test(AlbumDaoImplTest.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68)
Caused by: org.hibernate.HibernateException: Error applying BeanValidation relational constraints
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:219)
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.integrate(BeanValidationIntegrator.java:126)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:306)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1744)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:94)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
... 34 more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.applyRelationalConstraints(BeanValidationIntegrator.java:208)
... 39 more
Caused by: org.hibernate.HibernateException: Unable to build the default ValidatorFactory
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:524)
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.applyDDL(TypeSafeActivator.java:119)
... 44 more
Caused by: javax.validation.ValidationException: Unable to create a Configuration, because no Bean Validation provider could be found. Add a provider like Hibernate Validator (RI) to your classpath.
at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:271)
at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:110)
at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:521)
... 45 more
public class Main {
public static void main(String[] args){
EntityManagerFactory emf = Persistence.createEntityManagerFactory("TestPU");
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
Album album1=new Album();
album1.setCommentary("Commentary commentary commentary.");
album1.setTitle("Album title");
Genre genre1=new Genre();
genre1.setName("Genre name");
genre1.setDescription("Genre commentary.");
Song song1=new Song();
Song song2=new Song();
Song song3=new Song();
song1.setAlbum(album1);
song1.setBitrate(320);
song1.setCommentary("Song commentary.");
song1.setPositionInAlbum(1);
song1.setTitle("Song title.");
song2.setAlbum(album1);
song2.setBitrate(320);
song2.setCommentary("Song commentary.");
song2.setPositionInAlbum(2);
song2.setTitle("Song title.");
song3.setAlbum(album1);
song3.setBitrate(320);
song3.setCommentary("Song commentary.");
song3.setPositionInAlbum(2);
song3.setTitle("Song title.");
HashSet<Song>songs= new HashSet<Song>();
songs.add(song1);
songs.add(song2);
songs.add(song3);
album1.setSongs(songs);
em.persist(genre1);
em.persist(song1);
em.persist(song2);
em.persist(song3);
em.persist(album1);
em.getTransaction().commit();
em.close();
emf.close();
}
}
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/ persistence http://java.sun.com/xml/ns/persistence/ persistence_1_0.xsd">
<persistence-unit name="TestPU" transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.connection.username" value="testUser"/>
<property name="hibernate.connection.driver_class" value="org.apache.derby.jdbc.ClientDriver"/>
<property name="hibernate.connection.password" value="testUser123"/>
<property name="hibernate.connection.url" value="jdbc:derby://localhost:1527/musicLibraryTestDB"/>
<property name="hibernate.cache.provider_class" value="org.hibernate.cache.NoCacheProvider"/>
<property name="hibernate.hbm2ddl.auto" value="update"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect" />
<property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
</properties>
</persistence>
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>sk.matejkvassay</groupId>
<artifactId>MusicLibrary</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>war</packaging>
<name>MusicLibrary</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>7.0</version>
<type>jar</type>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>4.1.4.Final</version>
</dependency>
<dependency>
<groupId>org.apache.derby</groupId>
<artifactId>derbyclient</artifactId>
<version>10.7.1.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<phase>validate</phase>
<goals>
<goal>copy</goal>
</goals>
<configuration>
<outputDirectory>${endorsed.dir}</outputDirectory>
<silent>true</silent>
<artifactItems>
<artifactItem>
<groupId>javax</groupId>
<artifactId>javaee-endorsed-api</artifactId>
<version>7.0</version>
<type>jar</type>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
根据提供的堆栈跟踪，您缺少bean验证的依赖项 尝试将hibernate validator作为依赖项添加到pom.xml中：
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.1.2.Final</version>
</dependency>
谢谢，这很有效。但愿我早一点问，在这件事上花的时间比我想承认的要多。
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.1.2.Final</version>
</dependency>