Tomcat上的Spring/JPA/Vaadin-非持久化实体_Spring_Tomcat_Jpa_Vaadin

Tomcat上的Spring/JPA/Vaadin-非持久化实体

spring tomcat jpa vaadin

Tomcat上的Spring/JPA/Vaadin-非持久化实体,spring,tomcat,jpa,vaadin,Spring,Tomcat,Jpa,Vaadin,我有一个在Tomcat7服务器上使用StackSpring、JPA（HibernateImpl）和Vaadin7的webapp。问题是实体管理器没有持久化实体的。此外，不会引发任何错误/异常。我想我能得到答案，但我不确定要使用带弹簧的Vaadin 7，我使用由于文件数量有限，以下是概述： src/main/webapp/META-INF/context.xml src/main/webapp/WEB-INF/WEB.xml src/main/webapp/WEB-INF/applicati

我有一个在Tomcat7服务器上使用StackSpring、JPA（HibernateImpl）和Vaadin7的webapp。问题是实体管理器没有持久化实体的。此外，不会引发任何错误/异常。我想我能得到答案，但我不确定

要使用带弹簧的Vaadin 7，我使用

由于文件数量有限，以下是概述：

src/main/webapp/META-INF/context.xml
src/main/webapp/WEB-INF/WEB.xml
src/main/webapp/WEB-INF/application-context.xml
src/main/java/com/ks/places/MyUI.java（自动连接placeService并创建PlaceEntity）
src/main/java/com/ks/places/model/Place.java（相关实体）
src/main/java/com/ks/places/dao/PlaceDao.java
src/main/java/com/ks/places/dao/PlaceDaoImpl.java
src/main/java/com/ks/places/service/PlaceService.java
src/main/java/com/ks/places/service/PlaceServiceImpl.java

这是我的代码：

WEB-INF/WEB.xml

<!-- Spring -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
    <listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/application-context.xml</param-value>
</context-param>

<!-- Vaadin servlet -->
<servlet>
    <servlet-name>Vaadin Application Servlet</servlet-name>
    <servlet-class>ru.xpoft.vaadin.SpringVaadinServlet</servlet-class>
    <init-param>
        <description>Vaadin UI to display</description>
        <param-name>beanName</param-name>
        <param-value>myUI</param-value>
    </init-param>
    <init-param>
        <param-name>systemMessagesBeanName</param-name>
        <param-value>DEFAULT</param-value>
    </init-param>
</servlet>
<servlet-mapping>
    <servlet-name>Vaadin Application Servlet</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>Vaadin Application Servlet</servlet-name>
    <url-pattern>/VAADIN/*</url-pattern>
</servlet-mapping>

<!-- Vaadin Production/debug mode -->
<context-param>
    <description>Vaadin production mode</description>
    <param-name>productionMode</param-name>
    <param-value>false</param-value>
</context-param>

<!-- JNDI datasource -->
<resource-ref>
    <description>JNDI Datasource</description>
    <res-ref-name>jdbc/placesPU</res-ref-name>
    <res-type>javax.sql.DataSource</res-type>
    <res-auth>Container</res-auth>
</resource-ref>

PlaceDaoImpl.java

@Repository("placeDao")
public class PlaceDaoImpl implements PlaceDao {

    // @PersistenceContext(unitName="placesPU") // also tried this
    private EntityManager entityManager;

    public EntityManager getEntityManager() {
        return entityManager;
    }

    @PersistenceContext(unitName="placesPU")
    public void setEntityManager(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    @Override
    public void save(Place place) {
        entityManager.persist(place);
        entityManager.flush(); <- gives an TransactionRequiredException exception
    }

}

PlaceServiceImpl.java

//@Transactional(propagation = Propagation.REQUIRED, readOnly = false) // also tried this
@Service("placeService")    
public class PlaceServiceImpl implements PlaceService {

    @Autowired
    private PlaceDao placeDao;

    //@Transactional // also tried this
    @Transactional(propagation= Propagation.REQUIRED, readOnly=false)
    @Override
    public void save(Place place) {
        placeDao.save(place);
    }

}

MyUI.java

@Component
@Scope("prototype")
public class MyUI extends UI implements Serializable {

    private static final long serialVersionUID = 1L;

    @Autowired
    private PlaceService placeService;

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);

        Button button = new Button("Click Me");
        button.addClickListener(new Button.ClickListener() {

        private static final long serialVersionUID = 1L;

        public void buttonClick(ClickEvent event) {

                Place place = new Place();
                place.setName("vandaag");

                placeService.save(place);

                // No entity was added to the database...

            }
        });
        layout.addComponent(button);
    }

}

交易

当我持久化Place实体（MyUI.java中的placeService.save（））时，我没有得到任何错误或异常。但是，当我手动尝试刷新entityManager时，确实会出现错误：

Caused by: javax.persistence.TransactionRequiredException: no transaction is in progress
at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:983)
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.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:366)
at $Proxy16.flush(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:241)
at $Proxy16.flush(Unknown Source)
at com.ks.places.dao.PlaceDaoImpl.save(PlaceDaoImpl.java:44)

例外情况清楚地表明，

@Transactional

注释根本不被考虑

我建议您从

中删除

mode=“aspectj”

：

默认的

模式

是

代理

。对于

aspectj

，您需要完整的aspectj支持（我目前看不出您需要它的原因）。AspectJ编织需要类路径上的spring-aspects.jar，以及启用加载时编织（或编译时编织）

（顺便说一句，您不需要代理target class=“true”，因为您有服务的接口。）

例外情况清楚地表明，您的

@Transactional

注释根本不被考虑

我建议您从

中删除

mode=“aspectj”

：

默认的

模式

是

代理

。对于

aspectj

，您需要完整的aspectj支持（我目前看不出您需要它的原因）。AspectJ编织需要类路径上的spring-aspects.jar，以及启用加载时编织（或编译时编织）

（顺便说一句，您不需要代理target class=“true”，因为您有服务接口。）

您可以复制/粘贴您的日志以检查您的交易是否正确吗？谢谢。我更新了这个问题，但有一个例外。或者您是指其他日志吗？能否复制/粘贴日志以检查您的交易是否正确？谢谢。我更新了这个问题，但有一个例外。或者你是说其他日志？你是对的。。。我不敢相信我没试过。一定是因为我用它挣扎了两天，看不清楚。你是对的。。。我不敢相信我没试过。一定是因为我用它挣扎了两天，看不清楚。

public interface PlaceService {

    void save(Place place);

}

//@Transactional(propagation = Propagation.REQUIRED, readOnly = false) // also tried this
@Service("placeService")    
public class PlaceServiceImpl implements PlaceService {

    @Autowired
    private PlaceDao placeDao;

    //@Transactional // also tried this
    @Transactional(propagation= Propagation.REQUIRED, readOnly=false)
    @Override
    public void save(Place place) {
        placeDao.save(place);
    }

}

@Component
@Scope("prototype")
public class MyUI extends UI implements Serializable {

    private static final long serialVersionUID = 1L;

    @Autowired
    private PlaceService placeService;

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);

        Button button = new Button("Click Me");
        button.addClickListener(new Button.ClickListener() {

        private static final long serialVersionUID = 1L;

        public void buttonClick(ClickEvent event) {

                Place place = new Place();
                place.setName("vandaag");

                placeService.save(place);

                // No entity was added to the database...

            }
        });
        layout.addComponent(button);
    }

}

Caused by: javax.persistence.TransactionRequiredException: no transaction is in progress
at org.hibernate.ejb.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:983)
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.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:366)
at $Proxy16.flush(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:241)
at $Proxy16.flush(Unknown Source)
at com.ks.places.dao.PlaceDaoImpl.save(PlaceDaoImpl.java:44)

<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />