I was trying to get familier with JAX-RS and here is my code sniplets
WebTarget target; // this object reference was created successfully
public Client[] getClients() {
return target.request().get(Client[].class); // NOTE target is not null
}
This is the exception which is logged
Caused by: javax.ws.rs.NotFoundException: HTTP 404 Resource_not_found
at org.glassfish.jersey.client.JerseyInvocation.convertToException(JerseyInvocation.java:945)
at org.glassfish.jersey.client.JerseyInvocation.translate(JerseyInvocation.java:784)
at org.glassfish.jersey.client.JerseyInvocation.access$500(JerseyInvocation.java:91)
at org.glassfish.jersey.client.JerseyInvocation$2.call(JerseyInvocation.java:672)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:228)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:424)
at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:668)
at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:397)
at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:297)
at org.business.bee.client.ClientBean.getClients(ClientBean.java:67)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
If an error is thrown in a getter you'll get the _"FATAL: JSF1073: javax.el.ELException caught during processing of RENDER_RESPONSE 6"_ or similar. The underlying (real!) error has nothing to do with jsf, ejb, jstl or facelets. Just make sure the following exception (thrown in your code trying to access a rest service) does not happen:
javax.ws.rs.NotFoundException: HTTP 404 Resource_not_found
Related
Hi I am trying to implement a pass through SOAP proxy via #RestController in spring. For this purpose I have mapped a rest controller in following way:
#RestController
class MyProxy {
#PostMapping(value = "/**")
public ResponseEntity<String> proxyPost(#RequestBody(required = false) String body, HttpServletRequest request) {}
}
The regular SOAP requests are going OK. The problem comes when a MTOM type of SOAP request is send via the proxy. Then spring failes with unrecognized content type. Here is the exception:
Caused by: org.springframework.web.multipart.MultipartException: Failed to parse multipart servlet request; nested exception is javax.servlet.ServletException: Unsupported Content-Type [multipart/related; type="application/xop+xml"; boundary="uuid:dacf4733-80b4-41bc-b2e1-db69b6beadf6"; start="<root.message#cxf.apache.org>"; start-info="text/xml"], expected [multipart/form-data]
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.handleParseFailure(StandardMultipartHttpServletRequest.java:124)
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:115)
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.<init>(StandardMultipartHttpServletRequest.java:88)
at org.springframework.web.multipart.support.StandardServletMultipartResolver.resolveMultipart(StandardServletMultipartResolver.java:122)
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1205)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1039)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
... 60 common frames omitted
Caused by: javax.servlet.ServletException: Unsupported Content-Type [multipart/related; type="application/xop+xml"; boundary="uuid:dacf4733-80b4-41bc-b2e1-db69b6beadf6"; start="<root.message#cxf.apache.org>"; start-info="text/xml"], expected [multipart/form-data]
at org.eclipse.jetty.server.Request.getParts(Request.java:2407)
at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:317)
at org.springframework.web.multipart.support.StandardMultipartHttpServletRequest.parseRequest(StandardMultipartHttpServletRequest.java:95)
... 66 common frames omitted
When receiving a multipart/* request Spring delegates this to the configured Multipart handler. This is enabled by default and for this case should be disabled.
spring.servlet.multipart.enabled=false
Adding the above to your properties should disable it and prevent the parsing, so you can handle it in your controller.
I am running a JHipster 6.1.2 Gateway with Websockets and am trying to restrict access to a messaging topic, so that users can only subscribe to topics of the institution they belong to. So basically I want to perform a check on the id from the subscription path.
My current solution is based on https://stackoverflow.com/a/44895369/4246074 and looks as follows:
WebsocketSecurityConfiguration.java:
#Override
protected void configureInbound(MessageSecurityMetadataSourceRegistry messages) {
//...
//User can only subscribe to own institution topic
.simpSubscribeDestMatchers("/topic/institution.{id}")
.access("#institutionIdGuard.checkInstitutionId(#id)")
//...
}
InstitutionIdGuard.java:
#Component
public class InstitutionIdGuard {
public boolean checkInstitutionId(Long institutionId) {
//validation logic for institutionId would go here
return true;
}
The problem:
Apparently the SpEL expression can't access {id} from the path because i get a nullpointer error with the following log:
2019-08-08 10:30:08.367 ERROR 31097 --- [ XNIO-1 I/O-1] o.s.w.s.m.StompSubProtocolHandler : Failed to send client message to application via MessageChannel in session j2a0jlos. Sending STOMP ERROR to client.
org.springframework.messaging.MessageDeliveryException: Failed to send message to ExecutorSubscribableChannel[clientInboundChannel]; nested exception is java.lang.IllegalArgumentException: Failed to evaluate expression '#institutionIdGuard.checkInstitutionId(#id)'
at org.springframework.messaging.support.AbstractMessageChannel.send(AbstractMessageChannel.java:146)
at org.springframework.messaging.support.AbstractMessageChannel.send(AbstractMessageChannel.java:122)
at org.springframework.web.socket.messaging.StompSubProtocolHandler.handleMessageFromClient(StompSubProtocolHandler.java:284)
at org.springframework.web.socket.messaging.SubProtocolWebSocketHandler.handleMessage(SubProtocolWebSocketHandler.java:324)
at org.springframework.web.socket.handler.WebSocketHandlerDecorator.handleMessage(WebSocketHandlerDecorator.java:75)
at org.springframework.web.socket.handler.LoggingWebSocketHandlerDecorator.handleMessage(LoggingWebSocketHandlerDecorator.java:56)
at org.springframework.web.socket.handler.ExceptionWebSocketHandlerDecorator.handleMessage(ExceptionWebSocketHandlerDecorator.java:58)
at org.springframework.web.socket.sockjs.transport.session.AbstractSockJsSession.delegateMessages(AbstractSockJsSession.java:386)
at org.springframework.web.socket.sockjs.transport.session.WebSocketServerSockJsSession.handleMessage(WebSocketServerSockJsSession.java:195)
at org.springframework.web.socket.sockjs.transport.handler.SockJsWebSocketHandler.handleTextMessage(SockJsWebSocketHandler.java:93)
at org.springframework.web.socket.handler.AbstractWebSocketHandler.handleMessage(AbstractWebSocketHandler.java:43)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.handleTextMessage(StandardWebSocketHandlerAdapter.java:113)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.access$000(StandardWebSocketHandlerAdapter.java:42)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:84)
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter$3.onMessage(StandardWebSocketHandlerAdapter.java:81)
at io.undertow.websockets.jsr.FrameHandler$7.run(FrameHandler.java:286)
at io.undertow.websockets.jsr.ServerWebSocketContainer$1.call(ServerWebSocketContainer.java:170)
at io.undertow.websockets.jsr.ServerWebSocketContainer$1.call(ServerWebSocketContainer.java:167)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at io.undertow.websockets.jsr.ServerWebSocketContainer.invokeEndpointMethod(ServerWebSocketContainer.java:604)
at io.undertow.websockets.jsr.ServerWebSocketContainer.invokeEndpointMethod(ServerWebSocketContainer.java:594)
at io.undertow.websockets.jsr.FrameHandler.invokeTextHandler(FrameHandler.java:266)
at io.undertow.websockets.jsr.FrameHandler.onFullTextMessage(FrameHandler.java:317)
at io.undertow.websockets.core.AbstractReceiveListener$2.complete(AbstractReceiveListener.java:156)
at io.undertow.websockets.core.AbstractReceiveListener$2.complete(AbstractReceiveListener.java:152)
at io.undertow.websockets.core.BufferedTextMessage.read(BufferedTextMessage.java:105)
at io.undertow.websockets.core.AbstractReceiveListener.readBufferedText(AbstractReceiveListener.java:152)
at io.undertow.websockets.core.AbstractReceiveListener.bufferFullMessage(AbstractReceiveListener.java:90)
at io.undertow.websockets.jsr.FrameHandler.onText(FrameHandler.java:182)
at io.undertow.websockets.core.AbstractReceiveListener.handleEvent(AbstractReceiveListener.java:44)
at io.undertow.websockets.core.AbstractReceiveListener.handleEvent(AbstractReceiveListener.java:33)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameReadListener.handleEvent(AbstractFramedChannel.java:951)
at io.undertow.server.protocol.framed.AbstractFramedChannel$FrameReadListener.handleEvent(AbstractFramedChannel.java:932)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:88)
at org.xnio.nio.WorkerThread.run(WorkerThread.java:561)
Caused by: java.lang.IllegalArgumentException: Failed to evaluate expression '#institutionIdGuard.checkInstitutionId(#id)'
at org.springframework.security.access.expression.ExpressionUtils.evaluateAsBoolean(ExpressionUtils.java:30)
at org.springframework.security.messaging.access.expression.MessageExpressionVoter.vote(MessageExpressionVoter.java:57)
at org.springframework.security.messaging.access.expression.MessageExpressionVoter.vote(MessageExpressionVoter.java:39)
at org.springframework.security.access.vote.AffirmativeBased.decide(AffirmativeBased.java:63)
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:233)
at org.springframework.security.messaging.access.intercept.ChannelSecurityInterceptor.preSend(ChannelSecurityInterceptor.java:69)
at org.springframework.messaging.support.AbstractMessageChannel$ChannelInterceptorChain.applyPreSend(AbstractMessageChannel.java:178)
at org.springframework.messaging.support.AbstractMessageChannel.send(AbstractMessageChannel.java:132)
... 37 common frames omitted
Caused by: org.springframework.expression.spel.SpelEvaluationException: EL1004E: Method call: Method checkInstitutionId(null) cannot be found on type com.mycompany.websocketgateway.security.InstitutionIdGuard
at org.springframework.expression.spel.ast.MethodReference.findAccessorForMethod(MethodReference.java:225)
at org.springframework.expression.spel.ast.MethodReference.getValueInternal(MethodReference.java:134)
at org.springframework.expression.spel.ast.MethodReference.access$000(MethodReference.java:54)
at org.springframework.expression.spel.ast.MethodReference$MethodValueRef.getValue(MethodReference.java:390)
at org.springframework.expression.spel.ast.CompoundExpression.getValueInternal(CompoundExpression.java:90)
at org.springframework.expression.spel.ast.SpelNodeImpl.getTypedValue(SpelNodeImpl.java:114)
at org.springframework.expression.spel.standard.SpelExpression.getValue(SpelExpression.java:300)
at org.springframework.security.access.expression.ExpressionUtils.evaluateAsBoolean(ExpressionUtils.java:26)
... 44 common frames omitted
I would be grateful for any ideas how to make my solution work or other other ways of performing checks in the id.
I found the solution on the Spring Security issue tracker. Apparently before Spring Security 5.2 you can pass the implicit message variable to the SpEL expression
.simpSubscribeDestMatchers("/topic/institution.*")
.access("#institutionIdGuard.checkInstitutionId(authentication, message)")
Then in the verification method its possible to get the path from the message and do your own verification with it:
public boolean checkInstitutionId(Authentication authentication, Message<?> message) {
StompHeaderAccessor sha = StompHeaderAccessor.wrap(message);
String topic = sha.getDestination();
String id = topic.replace("/topic/institution/", "");
//validation logic for institutionId would go here
return true;
}
Spring Security 5.2 should have fixed the issue according to this pull request.
I am trying to use a custom HTTP Status Code (450) but I get an error "org.springframework.http.HttpStatus doesn't have any enum constant '450' defined". I tried searching the other threads, but I wasn't able to find a suitable reply to my situation. Any help is greatly appreciated. Thanks!
Please find below my code:
<http:inbound-gateway supported-methods="POST"
request-channel="headerEnricher"
error-channel="errorHandlerRouterChannel"
reply-channel="responseChannel" header-mapper="headerMapper"
path="/testApi/1.0" request-payload-type="java.lang.String" />
Error handler method:
private Message<String> createErrorResponse() {
Map<String, String> respHeader = new HashMap<String, String>();
respHeader.put(HttpHeaders.STATUS_CODE, "450");
return MessageBuilder.withPayload("Validation Error")
.copyHeaders(respHeader).build();
}
Error Exception:
HTTP Status 500 - Request processing failed; nested exception is java.lang.IllegalArgumentException: No matching constant for [450]
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: No matching constant for [450]
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
root cause: java.lang.IllegalArgumentException: No matching constant for [450]
org.springframework.http.HttpStatus.valueOf(HttpStatus.java:426)
org.springframework.integration.http.inbound.HttpRequestHandlingEndpointSupport.resolveHttpStatusFromHeaders(HttpRequestHandlingEndpointSupport.java:549)
org.springframework.integration.http.inbound.HttpRequestHandlingEndpointSupport.setupResponseAndConvertReply(HttpRequestHandlingEndpointSupport.java:443)
org.springframework.integration.http.inbound.HttpRequestHandlingMessagingGateway.handleRequest(HttpRequestHandlingMessagingGateway.java:103)
org.springframework.web.servlet.mvc.HttpRequestHandlerAdapter.handle(HttpRequestHandlerAdapter.java:49)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
javax.servlet.http.HttpServlet.service(HttpServlet.java:595)
javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
a) I would argue that Spring is buggy when it only supports a hard-wired set of status codes; these are an extension point in HTTP and thus the set of status code is open-ended (well, until the range 100..599 has been filled up).
b) With respect to your use case -- maybe you could just use status code 422 instead (https://greenbytes.de/tech/webdav/rfc4918.html#STATUS_422)?
I am using spring and hibernate to work on multiple database server save,update simultaneously using 2 datasource configuration.
I am using
org.springframework.jdbc.datasource.DriverManagerDataSource
class for creating datasource.
If both the database server up/running then it's work fine.
If I close one of my database server and trying to catch the exception then it's not coming in catch block
and the stack trace error displaying on my web browser.
Stack Trace:
** BEGIN NESTED EXCEPTION **
java.net.ConnectException
MESSAGE: Connection refused: connect
STACKTRACE:
java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)
at java.net.Socket.connect(Socket.java:475)
at java.net.Socket.(Socket.java:372)
at java.net.Socket.(Socket.java:215)
at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:256)
at com.mysql.jdbc.MysqlIO.(MysqlIO.java:271)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2771)
at com.mysql.jdbc.Connection.(Connection.java:1555)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:285)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriverManager(DriverManagerDataSource.java:173)
at org.springframework.jdbc.datasource.DriverManagerDataSource.getConnectionFromDriver(DriverManagerDataSource.java:164)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnectionFromDriver(AbstractDriverBasedDataSource.java:149)
at org.springframework.jdbc.datasource.AbstractDriverBasedDataSource.getConnection(AbstractDriverBasedDataSource.java:119)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.getConnection(LocalDataSourceConnectionProvider.java:82)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.AbstractBatcher.prepareStatement(AbstractBatcher.java:116)
at org.hibernate.id.insert.AbstractSelectingDelegate.performInsert(AbstractSelectingDelegate.java:54)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2186)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2666)
at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:71)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:321)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:204)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:130)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:562)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:550)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:546)
at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:686)
at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate(HibernateTemplate.java:1)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:683)
at com.service.RegistrationServiceImpl.add(RegistrationServiceImpl.java:56)
at com.controller.RegistrationController.onSubmit(RegistrationController.java:48)
at org.springframework.web.servlet.mvc.SimpleFormController.processFormSubmission(SimpleFormController.java:272)
at org.springframework.web.servlet.mvc.AbstractFormController.handleRequestInternal(AbstractFormController.java:268)
at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:763)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:709)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:613)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:536)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
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:879)
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:619)
** END NESTED EXCEPTION *
How can I handle this exception.
I want to display in my GUI that one of my db server is down If any of my db server is down.
Please help on this.
I think there are two options:
List item You should catch the exception in your service layer (like for example in RegistrationServiceImpl), but you will have to do this in all your service classes.
Create a Servlet filter that catches this specific exception and redirect the user to a page showing something like "Sorry, the database is down".
There is #ExceptionHandler annotation in spring. You can create a handler method in some common class of yours. Whenever an exception is thrown you can conveniently show the message you want depending on the exception thrown something like this
#Component
public class BaseController {
#ExceptionHandler(Throwable.class)
public ModelAndView handleException(Throwable throwable, HttpServletRequest request){
ModelAndView view = null;
if (throwable instanceof ConnectException){
view = //set message and return view;
}else if (throwable instanceof someOtherException) {
//do something else;
//handle as many exceptions as you want
}else {
//do something by default for other unhandled/generic exceptions
}
return view;
}
}
The documentation explains more on the return types supported.
You can also make the handler to handle only the kind of exception you want, something like this:
#ExceptionHandler(ConnectException.class)
public ModelAndView handleException(ConnectException ex, HttpServletRequest request){
// handle it
}
You can check this example which is on similar lines.
I hope this helps. Cheers :)
I'm running JBoss 5.1 GA with JDK 1.6 on Linux and trying to call session bean(jar containing this session bean is deployed on jboss server), Now i want to call this session bean from client, but didnt work.
Java Code at client Side
public class CallingJbossSessionBeanFromClient {
/**
* #param args
* #throws Exception
*/
public static void main(String[] args) throws Exception
{
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
p.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
p.put(Context.PROVIDER_URL, "jnp://182.158.93.41:8080");
Context context = new InitialContext(p);
System.out.println("Successfully Lookup and going to call SessionBean Function deployed on JBoss-5.1.0 Server");
SlsSessiongRemote remote=(SlsSessionRemote) context.lookup("SlsSessionBean/remote");
//SlsSessionBean/remote is RemoteBinding of session Bean
System.out.println("Called");
}
}
where 'SlsSessionBean/remote' is remote binding of session bean deployed on jboss server.
#Stateless
#RemoteBinding(jndiBinding="SlsSessionBean/remote")
but end up with following error
Exception in thread "main" javax.naming.NoInitialContextException: Cannot instantiate class: org.jnp.interfaces.NamingContextFactory [Root exception is java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory]
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:657)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at CallingJbossSessionBeanFromClient.main(CallingJbossSessionBeanFromClient.java:20)
Caused by: java.lang.ClassNotFoundException: org.jnp.interfaces.NamingContextFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
at com.sun.naming.internal.VersionHelper12.loadClass(VersionHelper12.java:46)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:654)
... 4 more
After seeing above error i added jbossjmx-ant.jar in the classpath of 'CallingJbossSessionBeanFromClient' class and got following error
Exception in thread "main" java.lang.NoClassDefFoundError: org/jboss/logging/Logger
at org.jnp.interfaces.NamingContext.<clinit>(NamingContext.java:181)
at org.jnp.interfaces.NamingContextFactory.getInitialContext(NamingContextFactory.java:55)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:667)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:288)
at javax.naming.InitialContext.init(InitialContext.java:223)
at javax.naming.InitialContext.<init>(InitialContext.java:197)
at CallingJbossSessionBeanFromClient.main(CallingJbossSessionBeanFromClient.java:20)
Caused by: java.lang.ClassNotFoundException: org.jboss.logging.Logger
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:303)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316)
... 7 more
After seeing above error i added jboss-logging-spi.jar in the classpath of 'CallingJbossSessionBeanFromClient' class and got following error
Exception in thread "main" javax.naming.CommunicationException: Could not obtain connection to any of these urls: 182.158.93.41:8080 and discovery failed with error: javax.naming.CommunicationException: Receive timed out [Root exception is java.net.SocketTimeoutException: Receive timed out] [Root exception is javax.naming.CommunicationException: Failed to retrieve stub from server /182.158.93.41:8080 [Root exception is java.io.EOFException]]
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1763)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:693)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:686)
at javax.naming.InitialContext.lookup(InitialContext.java:392)
at CallingJbossSessionBeanFromClient.main(CallingJbossSessionBeanFromClient.java:22)
Caused by: javax.naming.CommunicationException: Failed to retrieve stub from server /182.158.93.41:8080 [Root exception is java.io.EOFException]
at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:327)
at org.jnp.interfaces.NamingContext.checkRef(NamingContext.java:1734)
... 4 more
Caused by: java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2281)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2750)
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:780)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:280)
at org.jnp.interfaces.NamingContext.getServer(NamingContext.java:312)
... 5 more
Plz tell me, am i on the right way to call sesion bean from client java class?
I have spent hours looking for solution on Google. However I cannot seem to find anything that holds the hand..try to be more clear, i'm in lack of ideas in this problem, even it sounds like a classic
Plz suggest solution
The solution to this problem is to open the JMX-Console and click on the service=Naming to view the MBean view of the Naming service. Check if the port used is still 1099.....
Changed the URL to jnp://182.158.93.41:1299, the client could communicate with the EJB.
If you are running over JBoss AS 5.x
Here is RMI based JNDI description.
RMI-Port: default -1099 / If dynamic port changed to ports-01 Then Port is 1199
Now, Remaining Things are OK, Modify code ass below
Properties p = new Properties();
p.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
p.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
p.put(Context.PROVIDER_URL, "jnp://182.158.93.41:1199");
Another Point is case of accessing
SlsSessiongRemote remote=(SlsSessionRemote) context.lookup("SlsSessionBean/remote");
if - #Stateless(name="SlsSessionBean")
Then Remote JNDI- [SlsSessionBean/remote] and Local JNDI - [SlsSessionBean/local]
if - #Stateless(name="SlsSessionBean", mappedName="SlsSessionBeanGlobal")
Then Remote JNDI- [SlsSessionBeanGlobal] and Local JNDI - [SlsSessionBean/local]