我是JPA的新手，并且在我的Struts 2项目中使用eclipselink作为JPA engine。我在提交记录时遇到问题，因为它会引发异常：
javax.persistence.RollbackException: Transaction rolled back because transaction was set to RollbackOnly.
这是我的行动： -
public class CreateTour extends ActionSupport
implements UserAware, PersistAware {
private Tour tour;
private List<Integer> noOfPlaces;
private List<String> country;
private List<String> city;
private List<String> hotel;
private List<String> checkIn;
private List<String> checkOut;
private List<String> prerequisites;
private String categoryName;
private UserInfo user;
private EntityManager em;
public String getCategoryName() {
return categoryName;
}
public void setCategoryName(String categoryName) {
this.categoryName = categoryName;
}
public Tour getTour() {
return tour;
}
public void setTour(Tour tour) {
this.tour = tour;
}
public List<Integer> getNoOfPlaces() {
return noOfPlaces;
}
public void setNoOfPlaces(List<Integer> noOfPlaces) {
this.noOfPlaces = noOfPlaces;
}
public List<String> getCountry() {
return country;
}
public void setCountry(List<String> country) {
this.country = country;
}
public List<String> getCity() {
return city;
}
public void setCity(List<String> city) {
this.city = city;
}
public List<String> getHotel() {
return hotel;
}
public void setHotel(List<String> hotel) {
this.hotel = hotel;
}
public List<String> getCheckIn() {
return checkIn;
}
public void setCheckIn(List<String> checkIn) {
this.checkIn = checkIn;
}
public List<String> getCheckOut() {
return checkOut;
}
public void setCheckOut(List<String> checkOut) {
this.checkOut = checkOut;
}
public List<String> getPrerequisites() {
return prerequisites;
}
public void setPrerequisites(List<String> prerequisites) {
this.prerequisites = prerequisites;
}
@Override
public String execute() {
return INPUT;
}
public String save() {
em.getTransaction().begin();
tour.setCreationTime(new Date(System.currentTimeMillis()));
//Check Category
TypedQuery<Category> queryCat = em.createQuery("select c from Category c where c.categoryName = :catName", Category.class);
queryCat.setParameter("catName", categoryName);
Category catEntered;
try {
catEntered = queryCat.getSingleResult();
} catch (NoResultException noResult) {
catEntered = new Category();
catEntered.setCategoryName(categoryName);
catEntered.setCreationTime(new Date(System.currentTimeMillis()));
em.persist(catEntered);
}
tour.setCategory(catEntered);
catEntered.getTourList().add(tour);
addDaysToTour(tour);
em.persist(tour);
em.getTransaction().commit();
addActionMessage("Tour created successfully");
return INPUT;
}
private void addDaysToTour(Tour tour) {
int placesCounter = 0;
for (int i = 0; i < tour.getNoOfDays(); i++) {
Days day = new Days();
day.setDayNumber(i+1);
day.setNoOfPlacesCovered(noOfPlaces.get(i));
for (int j = 0; j < day.getNoOfPlacesCovered(); j++) {
addCityToDay(day, country.get(j + placesCounter), city.get(j + placesCounter));
}
day.setPrerequisites(prerequisites.get(i));
addHotelToDay(day, hotel.get(i), day.getCityList().get(day.getCityList().size()-1));
tour.getDaysList().add(day);
day.setTour(tour);
em.persist(day);
placesCounter += day.getNoOfPlacesCovered();
}
}
private void addCityToDay(Days day, String countryName, String cityName) {
//Check and Add Country
TypedQuery<Country> queryCountry = em.createQuery("select c from Country c "
+ "where c.countryName = :countryName", Country.class);
queryCountry.setParameter("countryName", countryName);
Country inputCountry;
try {
inputCountry = queryCountry.getSingleResult();
} catch (NoResultException noResult) {
inputCountry = new Country();
inputCountry.setCountryName(countryName);
inputCountry.setCreationTime(new Date(System.currentTimeMillis()));
em.persist(inputCountry);
}
//Check and Add City
TypedQuery<City> queryCity = em.createQuery("select c from City c "
+ "where c.cityName = :cityName and c.country.countryId = :countryId", City.class);
queryCity.setParameter("cityName", cityName);
queryCity.setParameter("countryId", inputCountry.getCountryId());
City inputCity;
try {
inputCity = queryCity.getSingleResult();
} catch (NoResultException noResult) {
inputCity = new City();
inputCity.setCityName(cityName);
inputCity.setCountry(inputCountry);
inputCity.setCreationTime(new Date(System.currentTimeMillis()));
inputCountry.getCityList().add(inputCity);
em.persist(inputCity);
}
inputCity.getDaysList().add(day);
day.getCityList().add(inputCity);
}
private void addHotelToDay(Days day, String hotelName, City city) {
//Check Category
TypedQuery<Hotel> queryHotel = em.createQuery("select h from Hotel h "
+ "where h.hotelName = :hotelName and "
+ "h.city.cityId = :cityId", Hotel.class);
queryHotel.setParameter("hotelName", hotelName);
queryHotel.setParameter("cityId", city.getCityId());
Hotel inputHotel;
try {
inputHotel = queryHotel.getSingleResult();
} catch (NoResultException noResult) {
inputHotel = new Hotel();
inputHotel.setHotelName(categoryName);
inputHotel.setCity(city);
inputHotel.setCreationTime(new Date(System.currentTimeMillis()));
city.getHotelList().add(inputHotel);
em.persist(inputHotel);
} catch (IllegalStateException ise) {
inputHotel = new Hotel();
inputHotel.setHotelName(categoryName);
inputHotel.setCity(city);
inputHotel.setCreationTime(new Date(System.currentTimeMillis()));
city.getHotelList().add(inputHotel);
em.persist(inputHotel);
}
HotelDetails hotelDetails = new HotelDetails();
hotelDetails.setCheckIn(checkIn.get(day.getDayNumber()));
hotelDetails.setCheckOut(checkOut.get(day.getDayNumber()));
hotelDetails.setDay(day);
hotelDetails.setHotel(inputHotel);
inputHotel.getHotelDetailsList().add(hotelDetails);
day.getHoteldetailsList().add(hotelDetails);
em.persist(hotelDetails);
}
public void setUser(UserInfo user) {
this.user = user;
}
public void setEntityManager(EntityManager em) {
this.em = em;
}
}
在save方法中，我呼吁em.getTransaction().commit()超越陈述的异常。
有人可以告诉我EntityManager有什么问题吗？
这是异常堆栈跟踪： -
javax.persistence.RollbackException: Transaction rolled back because transaction was set to RollbackOnly.
at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.commit(EntityTransactionImpl.java:141)
at com.ankitsoft.actions.admin.CreateTour.save(CreateTour.java:143)
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:606)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:450)
at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:289)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:252)
at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.ankitsoft.interceptor.PersistenceInterceptor.intercept(PersistenceInterceptor.java:46)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.ankitsoft.interceptor.AuthenticationInterceptor.intercept(AuthenticationInterceptor.java:43)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:562)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsExecuteFilter.doFilter(StrutsExecuteFilter.java:93)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.obtainContent(SiteMeshFilter.java:129)
at com.opensymphony.sitemesh.webapp.SiteMeshFilter.doFilter(SiteMeshFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:91)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:214)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:316)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.f
INFO: ilterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:744)
答案 0 :(得分：0)
在save方法上方使用此项：
@Transactional(noRollbackFor = Exception.class)