Question

您好我有这个测试类，它将3个实体类保存到数据库中。 此外，第一次保存会将演员实体存储两次。

@Test
//    @Transactional
public void test() throws ParseException {
    //Creating a movie
    Movie movie1 = new Movie();
    movie1.setMovieName("Movie One");
    movie1.setPlot("Sample Plot1");
    movie1.setReleaseDate(new Date(DateUtils.dateToMilliSecondsConverter(20160101L)));
    //Creating cast
    Cast cast1 = new Cast("male", "lead", Type.MALE_LEAD);
    Cast cast2 = new Cast("female", "lead", Type.FEMALE_LEAD);
    List<Cast> cast = new ArrayList<>();
    cast.add(cast1);
    cast.add(cast2);
    //adding cast to movie
    movie1.setCast(cast);
    movie1.setRuntime(120);
    movieDAO.saveOrUpdate(
    //Creating a movie
    Movie movie2 = new Movie();
    movie2.setMovieName("Movie Two");
    movie2.setPlot("Sample Plot2");
    movie2.setReleaseDate(new Date(DateUtils.dateToMilliSecondsConverter(20160101L)));
    movie2.setRuntime(120);
    movieDAO.saveOrUpdate(movie2);
    CinemaHall ch = new CinemaHall();
    ch.setName("Odeon");
    ch.setMovie(new ArrayList<Movie>() {
    {
        add(movie1);
        add(movie2);
    }
    });
    cinemaHallDAO.saveOrUpdate(ch);

}

实体类如下

CinemaHall.java

public class CinemaHall{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    private String name;
    @OneToMany(targetEntity = Movie.class, cascade = CascadeType.ALL, fetch = FetchType.EAGER)
    private List<Movie> movie = new ArrayList<>();
}

Movie.Java

public class Movie implements Common {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    private String movieName;
    private Date releaseDate;
    @OneToMany(targetEntity = Cast.class, cascade = CascadeType.ALL, fetch = FetchType.EAGER)
    private List<Cast> Cast = new ArrayList<>();
    private String plot;
    private Integer runtime;
    @ElementCollection(targetClass = String.class)
    private List<String> showTimings = new ArrayList<>();
}

Cast.Java

public class Cast{
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    private String firstName;
    private String lastName;
    @Enumerated(value = EnumType.STRING)
    private Type type;
}

当我运行上述测试时，我收到以下错误。

org.springframework.dao.DataIntegrityViolationException：无法执行声明; SQL [不适用];约束[null];嵌套异常是 org.hibernate.exception.ConstraintViolationException：不能执行声明 org.springframework.orm.hibernate5.SessionFactoryUtils.convertHibernateAccessException（SessionFactoryUtils.java:164）在 org.springframework.orm.hibernate5.HibernateTransactionManager.convertHibernateAccessException（HibernateTransactionManager.java:741）在 org.springframework.orm.hibernate5.HibernateTransactionManager.doCommit（HibernateTransactionManager.java:589）在 org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit（AbstractPlatformTransactionManager.java:761）在 org.springframework.transaction.support.AbstractPlatformTransactionManager.commit（AbstractPlatformTransactionManager.java:730）在 org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning（TransactionAspectSupport.java:485）在 org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction（TransactionAspectSupport.java:291）在 org.springframework.transaction.interceptor.TransactionInterceptor.invoke（TransactionInterceptor.java:96）在 org.springframework.aop.framework.ReflectiveMethodInvocation.proceed（ReflectiveMethodInvocation.java:179）在 org.springframework.aop.framework.CglibAopProxy $ DynamicAdvisedInterceptor.intercept（CglibAopProxy.java:655）在 com.movie.ticketing.dao.MovieDAO $$ EnhancerBySpringCGLIB $$ d00001d8.saveOrUpdate（）在com.movie.ticketing.dao.TestApp.test（TestApp.java:52）at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（未知来源）at sun.reflect.DelegatingMethodAccessorImpl.invoke（未知来源）at java.lang.reflect.Method.invoke（未知来源）at org.junit.runners.model.FrameworkMethod $ 1.runReflectiveCall（FrameworkMethod.java:47）在 org.junit.internal.runners.model.ReflectiveCallable.run（ReflectiveCallable.java:12）在 org.junit.runners.model.FrameworkMethod.invokeExplosively（FrameworkMethod.java:44）在 org.junit.internal.runners.statements.InvokeMethod.evaluate（InvokeMethod.java:17）在 org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate（RunBeforeTestMethodCallbacks.java:75）在 org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate（RunAfterTestMethodCallbacks.java:86）在 org.springframework.test.context.junit4.statements.SpringRepeat.evaluate（SpringRepeat.java:84）在org.junit.runners.ParentRunner.runLeaf（ParentRunner.java:271）at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:254）在 org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild（SpringJUnit4ClassRunner.java:89）在org.junit.runners.ParentRunner $ 3.run（ParentRunner.java:238）at org.junit.runners.ParentRunner $ 1.schedule（ParentRunner.java:63）at org.junit.runners.ParentRunner.runChildren（ParentRunner.java:236）at at org.junit.runners.ParentRunner.access $ 000（ParentRunner.java:53）at at org.junit.runners.ParentRunner $ 2.evaluate（ParentRunner.java:229）at at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate（RunBeforeTestClassCallbacks.java:61）在 org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate（RunAfterTestClassCallbacks.java:70）在org.junit.runners.ParentRunner.run（ParentRunner.java:309）at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run（SpringJUnit4ClassRunner.java:193）在 org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run（JUnit4TestReference.java:86）在 org.eclipse.jdt.internal.junit.runner.TestExecution.run（TestExecution.java:38）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:459）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests（RemoteTestRunner.java:670）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run（RemoteTestRunner.java:382）在 org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main（RemoteTestRunner.java:192）引起：org.hibernate.exception.ConstraintViolationException：可以不执行声明 org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert（SQLExceptionTypeDelegate.java:59）在 org.hibernate.exception.internal.StandardSQLExceptionConverter.convert（StandardSQLExceptionConverter.java:42）在 org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert（SqlExceptionHelper.java:111）在 org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert（SqlExceptionHelper.java:97）在 org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate（ResultSetReturnImpl.java:207）在 org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch（NonBatchingBatch.java:45）在 org.hibernate.persister.entity.AbstractEntityPersister.insert（AbstractEntityPersister.java:2921）在 org.hibernate.persister.entity.AbstractEntityPersister.insert（AbstractEntityPersister.java:3421）在 org.hibernate.action.internal.EntityInsertAction.execute（EntityInsertAction.java:89）在 org.hibernate.engine.spi.ActionQueue.executeActions（ActionQueue.java:560）在 org.hibernate.engine.spi.ActionQueue.executeActions（ActionQueue.java:434）在 org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions（AbstractFlushingEventListener.java:337）在 org.hibernate.event.internal.DefaultFlushEventListener.onFlush（DefaultFlushEventListener.java:39）在org.hibernate.internal.SessionImpl.flush（SessionImpl.java:1295）在 org.hibernate.internal.SessionImpl.managedFlush（SessionImpl.java:468）在 org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion（SessionImpl.java:3135）在 org.hibernate.internal.SessionImpl.beforeTransactionCompletion（SessionImpl.java:2352）在 org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion（JdbcCoordinatorImpl.java:485）在 org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback（JdbcResourceLocalTransactionCoordinatorImpl.java:147）在 org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access $ 100（JdbcResourceLocalTransactionCoordinatorImpl.java:38）在 org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl $ TransactionDriverControlImpl.commit（JdbcResourceLocalTransactionCoordinatorImpl.java:231）在 org.hibernate.engine.transaction.internal.TransactionImpl.commit（TransactionImpl.java:65）在 org.springframework.orm.hibernate5.HibernateTransactionManager.doCommit（HibernateTransactionManager.java:581） ... 38更多引起： com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException：重复输入＆＃39; 2＆＃39;关键＆＃39; PRIMARY＆＃39;在 sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法） at sun.reflect.NativeConstructorAccessorImpl.newInstance（未知来源）at sun.reflect.DelegatingConstructorAccessorImpl.newInstance（未知来自java.lang.reflect.Constructor.newInstance（未知来源）在com.mysql.jdbc.Util.handleNewInstance（Util.java:404）at com.mysql.jdbc.Util.getInstance（Util.java:387）at com.mysql.jdbc.SQLError.createSQLException（SQLError.java:932）at at com.mysql.jdbc.MysqlIO.checkErrorPacket（MysqlIO.java:3878）at at com.mysql.jdbc.MysqlIO.checkErrorPacket（MysqlIO.java:3814）at at com.mysql.jdbc.MysqlIO.sendCommand（MysqlIO.java:2478）at at com.mysql.jdbc.MysqlIO.sqlQueryDirect（MysqlIO.java:2625）at at com.mysql.jdbc.ConnectionImpl.execSQL（ConnectionImpl.java:2551）at com.mysql.jdbc.PreparedStatement.executeInternal（PreparedStatement.java:1861）在 com.mysql.jdbc.PreparedStatement.executeUpdateInternal（PreparedStatement.java:2073）在 com.mysql.jdbc.PreparedStatement.executeUpdateInternal（PreparedStatement.java:2009）在 com.mysql.jdbc.PreparedStatement.executeLargeUpdate（PreparedStatement.java:5094）在 com.mysql.jdbc.PreparedStatement.executeUpdate（PreparedStatement.java:1994）在 org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate（DelegatingPreparedStatement.java:105）在 org.apache.commons.dbcp.DelegatingPreparedStatement.executeUpdate（DelegatingPreparedStatement.java:105）在 org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.executeUpdate（ResultSetReturnImpl.java:204） ......还有56个

com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException：重复条目＆＃39; 2＆＃39;关键＆＃39; PRIMARY＆＃39;在测试过程中

0 个答案: