spring Spring和hibernate：未找到当前线程的会话
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Spring and hibernate: No Session found for current thread
提问by Hip Hip Array
im gettting the following error
我收到以下错误
org.hibernate.HibernateException: No Session found for current thread
at org.springframework.orm.hibernate4.SpringSessionContext.currentSession(SpringSessionContext.java:97)
at org.hibernate.internal.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:1024)
at com.fexco.shoptaxfreemobile.service.ProfileService.registerVisitor(ProfileService.java:57)
at com.fexco.shoptaxfreemobile.controller.ProfileController.registerVisitor(ProfileController.java:91)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:770)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.fexco.shoptaxfreemobile.jsonp.JsonpCallbackFilter.doFilter(JsonpCallbackFilter.java:33)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
Service class
服务类
@Service
public class ProfileService {
@Resource(name = "mySessionFactory")
private SessionFactory sessionFactory;
@Autowired
private ProfileDao profileDao;
private class CountrySorter implements Comparator<Country> {
@Override
public int compare(Country country1, Country country2) {
if ( country1.getId().compareTo(new Long (3)) < 0){
return country1.getId().compareTo(country2.getId());
}
return country1.getName().compareToIgnoreCase(country2.getName());
}
}
public List<Country> getCountries() {
List<VisitorCountry> visitorCountries = profileDao.getAllCountries();
List<Country> countries = new ArrayList<Country>();
for ( VisitorCountry country : visitorCountries){
countries.add(country.getCountry());
}
Comparator<Country> comparator = new CountrySorter();
Collections.sort(countries, comparator);
return countries;
}
public RegisterResponse registerVisitor(JsonVisitor visitorDetails){
Visitor storedVisitor = (Visitor) sessionFactory.getCurrentSession().get(Visitor.class, visitorDetails.getTfscNumber(), LockMode.NONE);
if ( storedVisitor == null){
storedVisitor = new Visitor(visitorDetails);
}else{
storedVisitor.setVisitorDetails(visitorDetails);
}
try{
sessionFactory.getCurrentSession().saveOrUpdate(storedVisitor);
}catch(Exception ex){
return new RegisterResponse(false, "Failed To Register Card. Please Try Again Later.", visitorDetails);
}
return new RegisterResponse(true, "", visitorDetails);
}
}
bit of DAO class
一点 DAO 类
@Service
@Transactional
public class ProfileDao {
@Resource(name = "mySessionFactory")
private SessionFactory sessionFactory;
public List getAllCountries(){
List<VisitorCountry> visitorCountries = sessionFactory.getCurrentSession()
.getNamedQuery("GET_ALL_COUNTRIES").list();
return visitorCountries;
}
public List<Retailer> getRetailerByRetailerNumber(String retailerNo) {
List<Retailer> retailerByRetailerNumber = sessionFactory.getCurrentSession()
.getNamedQuery("FindRetailerByRetailerNo").setString("retailerNo", retailerNo).list();
return retailerByRetailerNumber;
}
and i have this in my application-context.xml
我在我的 application-context.xml 中有这个
<tx:annotation-driven transaction-manager="transactionManager"/>
<bean id="mySessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource" ref="myDataSource" />
<property name="configLocation" value="classpath:hibernate.cfg.xml" />
<property name="hibernateProperties">
<value>
<![CDATA[
hibernate.show_sql=true
hibernate.format_sql=true
hibernate.cache.provider_class=org.hibernate.cache.NoCacheProvider
]]>
</value>
</property>
</bean>
can anyone spot why i am getting the following error?
谁能发现为什么我收到以下错误？
回答by Peter Bratton
You annotated your Dao class with @Transactional, but not your service class. The line:
您使用 @Transactional 注释了 Dao 类，而不是您的服务类。线路：
Visitor storedVisitor =
(Visitor) sessionFactory.getCurrentSession().get(Visitor.class,
visitorDetails.getTfscNumber(), LockMode.NONE);
requires you to be in a transaction.
要求您参与交易。
You can fix this by adding the @Transactional annotation to your ProfileService class, or just the registerVisitor() method.
您可以通过向 ProfileService 类添加 @Transactional 注释或仅添加 registerVisitor() 方法来解决此问题。
回答by Arun Kumar
I solved the same problem with following 2 steps
我通过以下两个步骤解决了同样的问题
Placed
@Transactionalon the service method as suggested jordan002in his answer on this page.One more thing,If you have 2 configuration files: say
application-context.xml(For DB and Application Context Specific configuration) andwebmvc-context.xml(For web/controller specific configuration), then you should scan the packages different for your controllers and dao.The
webmvc-context.xmlis loaded afterapplication-context.xml. I think the DAO class is loaded first with transactional references when the application-context.xml is loaded, but it is replace with another object, without transactional references, when webmvc-context.xml is loaded.Any way, I resolve the problem with specific packages scanned:
<context:component-scan base-package="com.app.repository" />for
application-context.xmland
<context:component-scan base-package="com.app.web" />for
webmvc-context.xml.
@Transactional按照jordan002在此页面上的回答中的建议放置在服务方法 上。还有一件事，如果您有 2 个配置文件：例如
application-context.xml（对于 DB 和应用程序上下文特定配置）和webmvc-context.xml（对于 Web/控制器特定配置），那么您应该扫描控制器和 dao 的不同包。在
webmvc-context.xml后载入application-context.xml。我认为在加载 application-context.xml 时首先使用事务引用加载 DAO 类，但是当加载 webmvc-context.xml 时，它会替换为另一个没有事务引用的对象。无论如何，我解决了扫描特定包的问题：
<context:component-scan base-package="com.app.repository" />为了
application-context.xml和
<context:component-scan base-package="com.app.web" />为
webmvc-context.xml。
回答by erimerturk
change your DAO 's annotation with @Repository
使用 @Repository 更改您的 DAO 的注释
@Repository
public class ProfileDao {
.
.
.
}
and then make your service method @Transactional for example like this
然后让你的服务方法 @Transactional 像这样
@Transactional
public List<Retailer> getRetailerByRetailerNumber(String retailerNo) {}
回答by pintu
I solved the above problem by following two step
我通过以下两步解决了上述问题
1-Adding @Transactional support in my service method which is calling DAO methods
1-在我调用 DAO 方法的服务方法中添加 @Transactional 支持
2-By importing the applicationContext.xml in spring-servlet.xml in this way
2-通过这种方式在spring-servlet.xml中导入applicationContext.xml
<import resource="applicationContext.xml" />
<mvc:annotation-driven />
<context:component-scan base-package="com.json.api.*" />
<!--Third Party Integration should be injected in xml start here -->
<bean id="integrationInterface" class="com.json.api.IntegerationInterface"></bean>
<!--Third Party Integration should be injected in xml start here -->
<mvc:interceptors>
<bean id="apiServiceInterceptor" class="com.json.api.interceptor.ApiServiceInterceptor"></bean>
</mvc:interceptors>
<!--To Enable @Value to map key with provided fields for property files -->
<context:property-placeholder />
It removes the need to scan packages in two places spring-servlet.xml and applicationContext.xml
它消除了在 spring-servlet.xml 和 applicationContext.xml 两个地方扫描包的需要
回答by iowatiger08
I know this is an question with some age, but I ran into this issue and found that if you are using Spring-Java configuration, that a resolution had a couple parts to this. Relative placement of some configuration to the controller was important.
我知道这是一个有些年头的问题，但我遇到了这个问题并发现如果您使用的是 Spring-Java 配置，那么解决方案有几个部分。某些配置与控制器的相对位置很重要。
First, the CoreConfiguration
一、CoreConfiguration
@Configuration
public class CoreConfiguration {
@Bean
public LocalSessionFactoryBean sessionFactory() {
LocalSessionFactoryBean factoryBean = new org.springframework.orm.hibernate4.LocalSessionFactoryBean();
String annotatedPckgs[] ={"org.tigersndragons.reports.model.warehouse"};
factoryBean.setAnnotatedPackages(annotatedPckgs);
Properties hibernateProperties = new Properties();
try {
hibernateProperties.load(this.getClass().getResourceAsStream("props/hibernate.properties"));
factoryBean.setHibernateProperties(hibernateProperties);
} catch (IOException e) { }
factoryBean.setPackagesToScan("org.telligen.reports.model.warehouse");
factoryBean.setDataSource(warehouseDataSource());//("jdbc/warehouse");
try {
factoryBean.afterPropertiesSet();
} catch (IOException e) { }
return factoryBean;
}
@Bean
public WarehouseDAO getWarehouseDAO(){
WarehouseDAO wrhsDao = new WarehouseDAO();
wrhsDao.setSessionFactory(sessionFactory().getObject());
return wrhsDao;
}
...
...
@Configuration
public class ScheduleConfiguration {
private static Logger logger = LoggerFactory.getLogger(ScheduleConfiguration.class);
@Autowired
private CoreConfiguration coreConfiguration;
@Bean
public HandlerMapping handlerMapping(){
DefaultAnnotationHandlerMapping mapping = new DefaultAnnotationHandlerMapping();
mapping.setInterceptors(new Object []{coreConfiguration.openSessionViewInterceptor()});
return mapping;
}
@Bean
public HandlerAdapter handerAdapter(){
return new AnnotationMethodHandlerAdapter();
}
@Bean
public ScheduleController scheduleController() throws Exception{
ScheduleController controller = new ScheduleController();
controller.setWrhsDao(coreConfiguration.getWarehouseDAO());
return controller;
}
...
In the Controller, I had to set
在控制器中，我必须设置
@Controller
@RequestMapping
public class ScheduleController {
private static Logger logger = LoggerFactory.getLogger(ScheduleController.class);
private WarehouseDAO wrhsDao;
@RenderMapping
@RequestMapping("VIEW")
public String viewSchedule(Map<String, Object> modelMap){...}
public void setWrhsDao(WarehouseDAO wrhsDao) {
this.wrhsDao = wrhsDao;
}
}
The WarehouseDAO has the @Repository annotation and the SessionFactory was not Autowired.
WarehouseDAO 有 @Repository 注释，SessionFactory 没有自动装配。
Hope this helps someone else with similar questions.
希望这可以帮助其他有类似问题的人。
回答by lboix
I'll just add something that took me some time to debug : don't forget that a @Transactional annotation will only work on "public" methods.
我将添加一些花了我一些时间来调试的东西：不要忘记 @Transactional 注释仅适用于“公共”方法。
I put some @Transactional on "protected" ones and got this error.
我把一些@Transactional 放在“受保护的”上，并得到了这个错误。
Hope it helps :)
希望能帮助到你 ：）
http://docs.spring.io/spring/docs/3.1.0.M2/spring-framework-reference/html/transaction.html
http://docs.spring.io/spring/docs/3.1.0.M2/spring-framework-reference/html/transaction.html
Method visibility and @Transactional
When using proxies, you should apply the @Transactional annotation only to methods with public visibility. If you do annotate protected, private or package-visible methods with the @Transactional annotation, no error is raised, but the annotated method does not exhibit the configured transactional settings. Consider the use of AspectJ (see below) if you need to annotate non-public methods.
方法可见性和@Transactional
使用代理时，您应该仅将 @Transactional 注释应用于具有公共可见性的方法。如果您使用 @Transactional 注释对受保护的、私有的或包可见的方法进行注释，则不会引发错误，但带注释的方法不会显示配置的事务设置。如果您需要注释非公共方法，请考虑使用 AspectJ（见下文）。
