jera ve eclipselink ile jndi veritabanı bağlantısı

Question

Jcat ile Tomcat 5.5 üzerinde eclipseLink/JPA ile birlikte bir veritabanı bağlantısı kurmaya çalışıyorum. JNDI kaynağını web.xml ve context.xml dosyasında zaten yapılandırdım.

db bağlantısı, JPA ve eclipseLink kullanmadan JNDI ile çalışır. eclipseLink için persistence.xml dosyasını yapılandırdıktan sonra, aşağıdaki özel durum var.

db bağlantısı için JNDI veri kaynağını kullanmak için persistence.xml dosyasının nasıl doğru şekilde yapılandırılacağını bilmiyorum.

istisna

WicketMessage: Method onFormSubmitted of interface  
org.apache.wicket.markup.html.form.IFormSubmitListener targeted at component  
[MarkupContainer [Component id = loginForm]] threw an exception 


Root cause: 

javax.naming.NamingException: This context must be accessed throught a java: URL 
at org.apache.naming.SelectorContext.parseName(SelectorContext.java:686) 
at org.apache.naming.SelectorContext.lookup(SelectorContext.java:121) 
at javax.naming.InitialContext.lookup(InitialContext.java:396) 
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:110) 
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94) 
at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:16 2) 
at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(Datab aseSessionImpl.java:579) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:228) 
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:380) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:157) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:214) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:202) 
at de.company.myDs.controller.AbstractCrudController.getEntityManager(Unknown Source) 
at de.company.myDs.controller.UserController.loadUserByName(Unknown Source) 
at de.company.myDs.controller.LoginController.validateUserLogin(Unknown Source) 
at de.company.myDs.pages.LoginPage$1.onSubmit(Unknown Source) 
at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1534) 
at org.apache.wicket.markup.html.form.Form.process(Form.java:934) 
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:896) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182) 
at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73) 
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) 
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) 
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:873) 
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665) 
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528) 
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81) 
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689) 
at java.lang.Thread.run(Thread.java:637) 

Complete stack: 

org.apache.wicket.WicketRuntimeException: Method onFormSubmitted of interface org.apache.wicket.markup.html.form.IFormSubmitListener targeted at component [MarkupContainer [Component id = loginForm]] threw an exception 
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:193) 
at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73) 
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) 
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) 

java.lang.reflect.InvocationTargetException 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182) 
at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73) 
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) 
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) 

javax.persistence.PersistenceException: Exception [EclipseLink-7060] (Eclipse Persistence Services - 2.1.0.v20100614-r7608): org.eclipse.persistence.exceptions.ValidationException 
Exception Description: Cannot acquire data source [java:comp/env/jdbc/myDs]. 
Internal Exception: javax.naming.NamingException: This context must be accessed throught a java: URL 
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:408) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:157) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:214) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:202) 
at de.company.myDs.controller.AbstractCrudController.getEntityManager(Unknown Source) 
at de.company.myDs.controller.UserController.loadUserByName(Unknown Source) 
at de.company.myDs.controller.LoginController.validateUserLogin(Unknown Source) 
at de.company.myDs.pages.LoginPage$1.onSubmit(Unknown Source) 
at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1534) 
at org.apache.wicket.markup.html.form.Form.process(Form.java:934) 
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:896) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182) 
at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73) 
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) 
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) 

Exception [EclipseLink-7060] (Eclipse Persistence Services - 2.1.0.v20100614-r7608): org.eclipse.persistence.exceptions.ValidationException 
Exception Description: Cannot acquire data source [java:comp/env/jdbc/myDs]. 
Internal Exception: javax.naming.NamingException: This context must be accessed throught a java: URL 
at org.eclipse.persistence.exceptions.ValidationException.cannotAcquireDataSource(ValidationException.java:464) 
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:116) 
at org.eclipse.persistence.sessions.JNDIConnector.connect(JNDIConnector.java:94) 
at org.eclipse.persistence.sessions.DatasourceLogin.connectToDatasource(DatasourceLogin.java:162) 
at org.eclipse.persistence.internal.sessions.DatabaseSessionImpl.loginAndDetectDatasource(DatabaseSessionImpl.java:579) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryProvider.login(EntityManagerFactoryProvider.java:228) 
at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.deploy(EntityManagerSetupImpl.java:380) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.getServerSession(EntityManagerFactoryImpl.java:157) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManagerImpl(EntityManagerFactoryImpl.java:214) 
at org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:202) 
at de.company.myDs.controller.AbstractCrudController.getEntityManager(Unknown Source) 
at de.company.myDs.controller.UserController.loadUserByName(Unknown Source) 
at de.company.myDs.controller.LoginController.validateUserLogin(Unknown Source) 
at de.company.myDs.pages.LoginPage$1.onSubmit(Unknown Source) 
at org.apache.wicket.markup.html.form.Form.delegateSubmit(Form.java:1534) 
at org.apache.wicket.markup.html.form.Form.process(Form.java:934) 
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:896) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182) 
at org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73) 
at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92) 
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1250) 
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329) 
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428) 
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545) 
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479) 

web.xml

... 
<resource-ref> 
    <description>DB Connection</description> 
    <res-ref-name>jdbc/myDs</res-ref-name> 
    <res-type>javax.sql.DataSource</res-type> 
    <res-auth>Container</res-auth> 
</resource-ref> 
...  

context.xml

... 
<Resource 
    name="jdbc/myDs" 
    auth="Container" 
    type="javax.sql.DataSource" 
    maxActive="100" 
    maxIdle="30" 
    validationQuery="SELECT 1" 
    testOnBorrow="true" 
    testWhileIdle="true" 
    timeBetweenEvictionRunsMillis="60000" 
    minEvictableIdleTimeMillis="600000" 
    username="root" 
    password="passwd" 
    maxWait="10000" 
    driverClassName="org.postgresql.Driver" 
    url="jdbc:postgresql://localhost:5432/myDs" /> 
... 

persistence.xml

...  
<persistence-unit name="myDs" transaction-type="RESOURCE_LOCAL"> 

    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> 

    <non-jta-data-source>java:comp/env/jdbc/myDs</non-jta-data-source> 

    <exclude-unlisted-classes>false</exclude-unlisted-classes> 

    <class>de.company.myDS.model.User</class> 

</persistence-unit> 
... 

Answer 1

Sadece projenize sınıf JPAEclipseLinkSessionCustomizer ekleyip persistence.xml yapılandırın:

<persistence-unit name="yourUnit" transaction-type="RESOURCE_LOCAL"> 

    <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> 

    <non-jta-data-source>java:comp/env/jdbc/yourDs</non-jta-data-source>   

    <properties> 
     <property name="eclipselink.session.customizer" value="com.company.yourproject.yourpackage.JPAEclipseLinkSessionCustomizer"/>   
    </properties> 

</persistence-unit> 

Bu geçici çözümü yalnızca Apache Tomcat için gerekir. Ben size verilen yorumlarla sorunu çözebilir umut

Answer 2

veri kaynağı URL'sini "jdbc/myDS"
<non-jta-data-source>jdbc/myDs</non-jta-data-source>

Answer 3

Sana da sorun aracılığıyla debugs bu bağlantıya bakın http://wiki.eclipse.org/EclipseLink/Examples/JPA/Tomcat_Web_Tutorial#Session_Customizer

de ayrıntılı olarak javax.naming.NamingException: This context must be accessed throught a java: URL istisna için geçici bir çözüm kodu gerektiğini düşünüyorum Set

aşağıda gösterildiği gibi

http://forums.java.net/jive/message.jspa?messageID=158622

Answer 4

...

Ben unsur olarak aynı değere sahip bir özellik "javax.persistence.nonJtaDataSource" ekleyerek bunu düzeltmek non-jta-data-source

Answer 5

Yılı 2015 gerçekleştirme: Eclipselink SessionCustomizer'ın gerekli olduğundan emin değilim. Benim testimde hiç çalışmaz (Tomcat 7.x, Java 7.x, Eclipselink 2.4.x).

Bazı eski malzemeler, Tomcat 5/6'da özel bir sorun ve sorunu çözmek için özel bir yöntem önerir.