我试图创建一个简单的服务类使用吉斯坚持一个@Transactional注解的方法:@Transactional注解没有开始交易(吉斯坚持)
public class TestServiceImpl implements TestService {
@Inject
private Provider<EntityManager> entityManager;
@Override
@Transactional
public Long createEvent(String name) {
Event event = new Event(name);
System.out.println("Is transaction active? " + entityManager.get().getTransaction().isActive());
entityManager.get().persist(event);
return event.getId();
}
}
遗憾的是没有交易由吉斯创建坚持。日志输出可以在这里看到:http://pastebin.com/Mh5BkqSC
注上线450打印:
是成交活跃?假
的结果是,没有什么是存储在数据库中:
mydb=# \d
List of relations
Schema | Name | Type | Owner
--------+--------------------+----------+----------
public | events | table | postgres
public | hibernate_sequence | sequence | postgres
(2 rows)
mydb=# select * from events;
id | name
----+------
(0 rows)
mydb=#
我设置以下列方式应用:
public static void main(String[] args) {
Injector injector = Guice.createInjector(new TestModule(), new JpaPersistModule("postgresPersistenceUnit"));
PersistService persistService = injector.getInstance(PersistService.class);
persistService.start();
TestService serviceToTest = injector.getInstance(TestService.class);
Long id = serviceToTest.createEvent("test");
System.out.println("Id: " + id);
}
正如你可以看到TestService
由吉斯创建,我正在使用JpaPersistModule
,这应该是@Transactional
接线的内容。
我创建了一个小型Maven项目演示问题:https://github.com/uldall/guice-persist-error