4

JPAHibernate4.1.7とSpring3.1.3を上にしてテストアプリケーションを構築しています。

jtaでNPEを取得しているため、JPAEntityManagerが失敗します。これがスタックトレースです。

    DEBUG TestContext - Retrieved ApplicationContext for test class [class cvut.dp.foodtables.service.FoodServiceImplTest] from cache with key [[MergedContextConfiguration@61cc1457 testClass = FoodServiceImplTest, locations = '{classpath:/WEB-INF/context/applicationContext.xml}', classes = '{}', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader']].
DEBUG DefaultListableBeanFactory - Returning cached instance of singleton bean 'txManager'
DEBUG JpaTransactionManager - Creating new transaction with name [testSome]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
DEBUG SessionImpl - Opened session at timestamp: 13525989368
DEBUG TransactionCoordinatorImpl - Skipping JTA sync registration due to auto join checking
DEBUG AbstractEntityManagerImpl - Looking for a JTA transaction to join
WARN  TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.transaction.TransactionalTestExecutionListener@16f88474] to process 'before' execution of test method [public void cvut.dp.foodtables.service.FoodServiceImplTest.testSome()] for test instance [cvut.dp.foodtables.service.FoodServiceImplTest@3210a146]
org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NullPointerException
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:427)
    at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
    at org.springframework.test.context.transaction.TransactionalTestExecutionListener$TransactionContext.startTransaction(TransactionalTestExecutionListener.java:514)
    at org.springframework.test.context.transaction.TransactionalTestExecutionListener.startNewTransaction(TransactionalTestExecutionListener.java:272)
    at org.springframework.test.context.transaction.TransactionalTestExecutionListener.beforeTestMethod(TransactionalTestExecutionListener.java:165)
    at org.springframework.test.context.TestContextManager.beforeTestMethod(TestContextManager.java:358)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
    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$2.evaluate(ParentRunner.java:222)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
    at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
    at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
    at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
    at org.apache.maven.surefire.booter.ProviderFactory$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: java.lang.NullPointerException
    at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.getStatus(JtaStatusHelper.java:73)
    at org.hibernate.engine.transaction.internal.jta.JtaStatusHelper.isActive(JtaStatusHelper.java:115)
    at org.hibernate.engine.transaction.internal.jta.CMTTransaction.join(CMTTransaction.java:149)
    at org.hibernate.ejb.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1220)
    at org.hibernate.ejb.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:178)
    at org.hibernate.ejb.EntityManagerImpl.<init>(EntityManagerImpl.java:89)
    at org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:179)
    at org.springframework.orm.jpa.JpaTransactionManager.createEntityManagerForTransaction(JpaTransactionManager.java:445)
    at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:366)
    ... 31 more
DEBUG DirtiesContextTestExecutionListener - After test method: context [[TestContext@5579d6f9 testClass = FoodServiceImplTest, testInstance = cvut.dp.foodtables.service.FoodServiceImplTest@3210a146, testMethod = testSome@FoodServiceImplTest, testException = org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NullPointerException, mergedContextConfiguration = [MergedContextConfiguration@61cc1457 testClass = FoodServiceImplTest, locations = '{classpath:/WEB-INF/context/applicationContext.xml}', classes = '{}', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader']]], class dirties context [false], class mode [null], method dirties context [false].
DEBUG DirtiesContextTestExecutionListener - After test class: context [[TestContext@5579d6f9 testClass = FoodServiceImplTest, testInstance = [null], testMethod = [null], testException = [null], mergedContextConfiguration = [MergedContextConfiguration@61cc1457 testClass = FoodServiceImplTest, locations = '{classpath:/WEB-INF/context/applicationContext.xml}', classes = '{}', activeProfiles = '{}', contextLoader = 'org.springframework.test.context.support.DelegatingSmartContextLoader']]], dirtiesContext [false].
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 11.134 sec <<< FAILURE!

私は死ぬまでエラーをグーグルで検索しましたが、それでも解決策を見つけることができません。

テストは次のとおりです。

package cvut.dp.foodtables.service;

import static org.junit.Assert.*;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

public class FoodServiceImplTest extends BaseServiceTest
{
    @Autowired
    private FoodService foodService;

    public FoodServiceImplTest()
    {
        super();
    }

    @Test
    public void testSome()
    {        
        Long id = foodService.addFood("test", 15, "test");
        assertEquals(1, foodService.getAllFood().size());
    }
}

どちらが伸びる

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {
    "classpath:/WEB-INF/context/applicationContext.xml"})
@TransactionConfiguration(defaultRollback=true, transactionManager="txManager")
@Transactional //extend the transactions to whole tests in order to rollback the tests
public class BaseServiceTest
{
    public BaseServiceTest()
    {
    }
}

エラーは構成のどこかにあると思われるので、ここにすべてのソースを投稿することはしません...

これが私のapplicationContext.xmlです（編集：3.1.xdsファイルに変更、変更なし）

<!--<?xml version="1.0" encoding="UTF-8"?>-->
<beans xmlns="http://www.springframework.org/schema/beans" 
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
       xmlns:webflow="http://www.springframework.org/schema/webflow-config" 
       xmlns:faces="http://www.springframework.org/schema/faces" 
       xmlns:p="http://www.springframework.org/schema/p" 
       xmlns:context="http://www.springframework.org/schema/context" 
       xmlns:tx="http://www.springframework.org/schema/tx" 
       xmlns:aop="http://www.springframework.org/schema/aop" 

       xsi:schemaLocation=" http://www.springframework.org/schema/beans 
            http://www.springframework.org/schema/beans/spring-beans-2.5.xsd 
            http://www.springframework.org/schema/webflow-config 
            http://www.springframework.org/schema/webflow-config/spring-webflow-config-2.0.xsd 
            http://www.springframework.org/schema/faces 
            http://www.springframework.org/schema/faces/spring-faces-2.0.xsd 
            http://www.springframework.org/schema/context 
            http://www.springframework.org/schema/context/spring-context-2.5.xsd 
            http://www.springframework.org/schema/tx 
            http://www.springframework.org/schema/tx/spring-tx-2.5.xsd" 
       default-autowire="byType"
>

<!-- Enable annotions -->
    <context:annotation-config />
    <context:component-scan base-package="cvut.dp.foodtables"/>
<!-- @Configurable -->
    <context:spring-configured/> 

<!-- Property files -->
    <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>/WEB-INF/properties/jdbc.properties</value>
                <value>/WEB-INF/properties/jpa.properties</value>
            </list>
        </property>
    </bean>        
<!-- JDBC data source -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <property name="initialSize" value="2" />
        <property name="minIdle" value="2" />
    </bean>
<!-- JPA settings --> 
    <bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="jpaVendorAdapter">
            <bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
                <property name="databasePlatform" value="${jpa.platform}"/>
                <property name="generateDdl" value="true"/>
                <property name="showSql" value="true"/>

            </bean>
        </property>
        <property name="packagesToScan" value="cvut.dp.foodtables" />
    </bean> 

<!-- Define transaction manager -->
    <bean id="txManager" class="org.springframework.orm.jpa.JpaTransactionManager">
        <property name="entityManagerFactory" ref="entityManagerFactory" />
    </bean>

<!-- @Transactional support-->
    <tx:annotation-driven transaction-manager="txManager" /> 

</beans>

私はpersistence.xmlを持っていません

jdbc.properties：

jdbc.driverClassName=org.hibernate.dialect.MySQLDialect
jdbc.url=jdbc:mysql://localhost:3306/FoodTables
jdbc.username=root

jpa.properties：

jpa.platform=org.hibernate.dialect.MySQLDialect

これがweb.xmlです

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
     version="3.0">


<!-- SPRING -->
    <context-param>
        <description>Spring config files</description>
        <param-name>contextConfigLocation</param-name>
        <param-value>
                /WEB-INF/context/*.xml
        </param-value>
    </context-param>

    <listener>
        <description>Loads Spring on server start</description>
        <listener-class>
               org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>

    <listener>
        <description>Request -> thread association</description>
        <listener-class>
               org.springframework.web.context.request.RequestContextListener
        </listener-class>
    </listener>  
<!-- SPRING END --> 
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
</web-app>

そして私のpom.xml

<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>cvut.dp</groupId>
    <artifactId>FoodTables</artifactId>
    <version>1.0</version>
    <packaging>war</packaging>

    <name>FoodTables</name>

    <properties>
        <endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>4.1.7.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-documentation</artifactId>
            <version>3.6.0.Beta2</version>
            <type>pom</type>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.1.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.16</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>1.7.1</version>
        </dependency>
        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>4.1.8.Final</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.10</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <groupId>org.hibernate.javax.persistence</groupId>
            <type>jar</type>
            <version>1.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.21</version>
        </dependency>
    </dependencies>

    <build>
        <testResources>
            <testResource>
                <directory>src/test/resources</directory>
                <filtering>true</filtering>
            </testResource>

            <testResource>
                <directory>src/main/webapp</directory>

                <filtering>true</filtering>

                <includes>
                    <include>**/context/applicationContext*.xml</include>
                    <include>**/properties/*.properties</include>
                </includes>
            </testResource>
        </testResources>  
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                    <compilerArguments>
                        <endorseddirs>${endorsed.dir}</endorseddirs>
                    </compilerArguments>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.1.1</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.1</version>
                <executions>
                    <execution>
                        <phase>validate</phase>
                        <goals>
                            <goal>copy</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${endorsed.dir}</outputDirectory>
                            <silent>true</silent>
                            <artifactItems>
                                <artifactItem>
                                    <groupId>javax</groupId>
                                    <artifactId>javaee-endorsed-api</artifactId>
                                    <version>6.0</version>
                                    <type>jar</type>
                                </artifactItem>
                            </artifactItems>
                        </configuration>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

最もグーグルで答えたのは、persistance.xmlにhibernate.transaction.jta.platformプロパティを設定する必要があるというものでしたが、これは私にはありません。これは私の初めてのJavaEEアプリであり、私はまだ自分が何をしているのか正確にはわかりません。しかし、このエラーは苛立たしいものです。

4

4 に答える 4

5

私も同じ問題を抱えていました。解決策は、xml構成で「byType」の代わりにdefault-autowire="byName"を使用することです。「byType」を使用している場合、SpringはLocalContainerEntityManagerFactoryBeanのプロパティ「jtaDataSource」も定義済みのデータソースBeanに自動的に自動配線します。

于 2013-05-28T20:58:40.317 に答える
1

jensの答えは正しく、問題は解決しますが、デフォルトの自動配線を変更する必要がないことを付け加えたいと思います。すべてのBean自体に設定することもできます。

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"
autowire="byName">
...

これで、「entityManagerFactory」を除くすべてのBeanでbyType-autowiringを使用できます。

于 2015-06-26T05:53:18.830 に答える
0

これは、jdbc.projectsで定義されているパスワードエントリではありません。

<property name = "password" value = "$ {jdbc.password}" />

プロジェクト用にスタンドアロンのユーザー/パスワードを作成することをお勧めします。本番環境ではrootを使用しないでください。

于 2012-11-11T03:58:22.683 に答える
0

「META-INF/persistence.xml」を追加してみてください。

    <persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
    <persistence-unit name="myUnit" transaction-type="RESOURCE_LOCAL">
    </persistence-unit>
    </persistence>

org.springframework.orm.jpa.persistenceunit.MutablePersistenceUnitInfoの91行目（PersistenceUnitTransactionType getTransactionType（））にブレークポイントを設定すると、Springがjta-datasourceまたはトランザクションタイプを持っていると考える理由を判断するのにも役立ちます。

于 2012-11-13T16:21:46.937 に答える