Question

我有三个实体（每个字段都有getter和setter）：

public class IndicatorSet { 

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id;

    @NaturalId
    @Column(unique=true, nullable=false)
    private String code;

    @Column(nullable=false)
    private String name;

    @OneToMany(fetch = FetchType.LAZY, cascade = {CascadeType.ALL})
    @JoinTable(
            name = "indicator_set_indicators",
            joinColumns = @JoinColumn(name = "indicator_set_id"),
            inverseJoinColumns = @JoinColumn(name = "indicator_id")
            )
    private List<Indicator> indicators;
}

public class Indicator {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id;

    @Column(nullable=false, unique=true)
    private String code;
}

public class IndicatorSetIndicator {

    @Id
    @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id;

    @ManyToOne
    @JoinColumn(name="indicator_id", nullable=false)
    private Indicator indicator;

    @ManyToOne
    @JoinColumn(name="indicator_set_id", nullable=false)
    private IndicatorSet indicatorSet;
}

我在数据库中放入一个IndicatorSet，Indicators并将其与我的服务器上的IndicatorSetIndicator表连接，并在junit test中运行以下代码。

IndicatorSet set = indicatorSetDAO.get(idOfSet);
List<Indicator> indicators = set.getIndicators();

当我在服务器上调用此代码时，它可以工作，我在列表中看到我的指标。当我尝试在junit测试中调用此代码时，我在list null引用中看到。这很奇怪。

当我在junit测试中调用以下代码时，它工作正常，指示符出现在列表中：

IndicatorSet set = indicatorSetDAO.get(idOfSet);
List<Indicator> indicators = indicatorSetIndicatorDAO.getIndicatorsBySet(set);

DAO使用Criteria API获取指标列表。通过测试在课堂上有这组注释：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:TestContext.xml")
@Transactional
@TestExecutionListeners({ DependencyInjectionTestExecutionListener.class, DirtiesContextTestExecutionListener.class,
    TransactionalTestExecutionListener.class, SessionRequestTestExecutionListener.class })

TestContext.xml：

  <?xml version="1.0" encoding="UTF-8" standalone="no"?>
    <beans [schemes]>

    <tx:annotation-driven transaction-manager="transactionManager" />

    <context:component-scan base-package="org.example.monitoring" />

    <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <jdbc:embedded-database id="dataSource" type="HSQL" />

    <bean id="liquibase" class="liquibase.integration.spring.SpringLiquibase">
        <property name="dataSource" ref="dataSource" />
        <property name="changeLog" value="classpath:db-changelog.xml" />
        <property name="contexts" value="test" />
        <!-- <property name="dropFirst" value="true" /> -->
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name='packagesToScan' value='pro.sisit.etalon.monitoring.entities' />
        <property name="dataSource" ref="dataSource" />
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.HSQLDialect</prop>
                <prop key="hibernate.show_sql">false</prop>
                <prop key="hibernate.connection.autocommit">true</prop>
            </props>
        </property>
    </bean>

    <bean class="org.springframework.beans.factory.config.CustomScopeConfigurer">
        <property name="scopes">
            <map>
                <entry key="request">
                    <bean class="org.springframework.web.context.request.RequestScope" />
                </entry>
                <entry key="session">
                    <bean class="org.springframework.web.context.request.SessionScope" />
                </entry>
            </map>
        </property>
    </bean>
</beans>

不在测试环境中配置Hibernate：

    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean">
        <property name="jndiName" value="java:comp/env/jdbc/monitoring" />
    </bean>

    <bean id='sessionFactory'
        class='org.springframework.orm.hibernate4.LocalSessionFactoryBean'>
        <property name='dataSource' ref='dataSource' />
        <property name='packagesToScan' value='pro.sisit.etalon.monitoring.entities'/>
        <property name='hibernateProperties'>
            <props>
                <prop key='hibernate.dialect'>org.hibernate.dialect.PostgreSQLDialect</prop>
                <prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory</prop>
                <prop key='hibernate.show_sql'>false</prop>
                <prop key="hibernate.connection.charSet">UTF-8</prop>
                <prop key="hibernate.connection.characterEncoding">UTF-8</prop>
                <prop key="hibernate.connection.useUnicode">true</prop>
                <prop key="hibernate.cache.use_query_cache">true</prop>
            </props>
        </property>
    </bean>

如何让我的代码在JUint测试中运行？

Hibernate：实体中@OneToMany字段的getter在junit test中返回null

0 个答案: