CODEWITHSUNDEEP
jakarta-eejpaejbnetbeans7.0
user572575
user572575

Reputation: 1049

I can't use Entity Class (JPA) in Netbeans7.0

I tried to use Entity Class (JPA) in Netbeans7.0 but It doesn't work.

  1. I create Enterprise Application name BookApp.

Create Entity Class

  1. I right click at BookApp-ejb and select Entity Classes fron Database.
  2. In dialog New Entity Class from Database I insert JNDI Name:jdbc/test for connect to test database and select table books. After that ,I click Next for insert Package: entity and click Finish.

Create Session Bean

  1. I right click at BookApp-ejb and select Session Beans for Entity Classes and click Next.
  2. I click Add All >> and click Next.
  3. I insert Package: sb , create Interface:Local and click Finish.

Create Web Application

  1. I right click BookApp-war and select HTML insert HTML File Name :findBook and click Finish.
  2. I put this code in HTML file
<form action="ShowBook" method="POST">
<h2>Search Book from ISBN </h2>
Enter ISBN <input type="text" name="isbn" value="" />
<input type="submit" value="Find" />
</form>
  1. I right click BookApp-war and select Servlet insert File Name: ShowBook, Package: servlets and click Finish.
  2. I right click in editor and select Insert Code… > Call Enterprise Bean…
  3. In dialog Call Enterprise Bean I select BooksFacade and click OK.
  4. I uncomment html and insert this code between out.println("");
String isbn = request.getParameter("isbn");
Books book = booksFacade.find(isbn);
out.println("Title: " + book.getTitle()+ "<BR>");
out.println("Author: " + book.getAuthor() + "<BR>");
out.println("Price: " + book.getPrice() + "<BR>");
  1. I clean and build BookApp.
  2. I run BookApp.
  3. I go to this URL http://localhost:8080/BookApp-war/findBook.html and insert isbn from books table but when I click Find button It show error like this.
HTTP Status 500 -

type Exception report

message

descriptionThe server encountered an internal error () that

prevented it from fulfilling this request.

exception

javax.ejb.EJBException

I don't know what I mistake. I delete Session Beans and create Session beans again but no create Interface. when I run BookApp it show same error. I'm new for EJB. please help me.

I'm not sure where is error but this code appear in server log while I build EJB Project.

INFO: file:/C:/Users/Mc/Documents/NetBeansProjects/BookApp/dist/gfdeploy/BookApp/BookApp-ejb_jar/_BookApp-ejbPU logout successful
SEVERE: java.io.IOException: Error creating temporary file transfer folder
    at org.glassfish.admin.payload.PayloadFilesManager.createTempFolder(PayloadFilesManager.java:718)
    at org.glassfish.admin.payload.PayloadFilesManager.createTempFolder(PayloadFilesManager.java:727)
    at org.glassfish.admin.payload.PayloadFilesManager.access$100(PayloadFilesManager.java:95)
    at org.glassfish.admin.payload.PayloadFilesManager$Temp.<init>(PayloadFilesManager.java:303)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$UploadedFilesManager.extractFiles(CommandRunnerImpl.java:1413)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$UploadedFilesManager.<init>(CommandRunnerImpl.java:1394)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$UploadedFilesManager.<init>(CommandRunnerImpl.java:1372)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:821)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1200(CommandRunnerImpl.java:96)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1247)
    at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1235)
    at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:465)
    at com.sun.enterprise.v3.admin.AdminAdapter.service(AdminAdapter.java:222)
    at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:168)
    at com.sun.enterprise.v3.server.HK2Dispatcher.dispath(HK2Dispatcher.java:117)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:234)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.io.IOException: Unknown error creating directory C:\Users\Mc\.netbeans\7.0\config\GF3\domain1\applications\xfer-5751472689020834694
    at org.glassfish.admin.payload.PayloadFilesManager.createTempFolder(PayloadFilesManager.java:709)
    ... 29 more

And this code appear in server log after I click Find button in HTML for call ShowBook servlet.

INFO: entity.Books actually got transformed
INFO: Portable JNDI names for EJB BooksFacade : [java:global/BookApp/BookApp-ejb/BooksFacade, java:global/BookApp/BookApp-ejb/BooksFacade!sb.BooksFacadeLocal]
INFO: WEB0671: Loading application [BookApp#BookApp-war.war] at [BookApp-war]
INFO: BookApp was successfully deployed in 7,063 milliseconds.
INFO: Instantiated an instance of org.hibernate.validator.engine.resolver.JPATraversableResolver.
INFO: EclipseLink, version: Eclipse Persistence Services - 2.2.0.v20110202-r8913
INFO: file:/C:/Users/Mc/Documents/NetBeansProjects/BookApp/dist/gfdeploy/BookApp/BookApp-ejb_jar/_BookApp-ejbPU login successful
WARNING: A system exception occurred during an invocation on EJB BooksFacade method public entity.Books sb.BooksFacade.find(java.lang.Object)
javax.ejb.EJBException
    at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5194)
    at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5092)
    at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4880)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2039)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1990)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:222)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at $Proxy203.find(Unknown Source)
    at servlets.ShowBook.processRequest(ShowBook.java:46)
    at servlets.ShowBook.doPost(ShowBook.java:79)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: You have provided an instance of an incorrect PK class for this find operation.  Class expected : class java.lang.Integer, Class received : class java.lang.String.
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.findInternal(EntityManagerImpl.java:695)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:619)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:498)
    at com.sun.enterprise.container.common.impl.EntityManagerWrapper.find(EntityManagerWrapper.java:320)
    at sb.AbstractFacade.find(AbstractFacade.java:36)
    at sb.BooksFacade.find(BooksFacade.java:16)
    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.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5367)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
    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 com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:862)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:371)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5339)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5327)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
    ... 31 more

WARNING: StandardWrapperValve[ShowBook]: PWC1406: Servlet.service() for servlet ShowBook threw exception
javax.ejb.EJBException
    at com.sun.ejb.containers.BaseContainer.processSystemException(BaseContainer.java:5194)
    at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:5092)
    at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:4880)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:2039)
    at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:1990)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:222)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88)
    at $Proxy203.find(Unknown Source)
    at servlets.ShowBook.processRequest(ShowBook.java:46)
    at servlets.ShowBook.doPost(ShowBook.java:79)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:326)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170)
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822)
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719)
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013)
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: You have provided an instance of an incorrect PK class for this find operation.  Class expected : class java.lang.Integer, Class received : class java.lang.String.
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.findInternal(EntityManagerImpl.java:695)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:619)
    at org.eclipse.persistence.internal.jpa.EntityManagerImpl.find(EntityManagerImpl.java:498)
    at com.sun.enterprise.container.common.impl.EntityManagerWrapper.find(EntityManagerWrapper.java:320)
    at sb.AbstractFacade.find(AbstractFacade.java:36)
    at sb.BooksFacade.find(BooksFacade.java:16)
    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.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
    at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
    at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5367)
    at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
    at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
    at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
    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 com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:862)
    at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:801)
    at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:371)
    at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5339)
    at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5327)
    at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
    ... 31 more

Upvotes: 0

Views: 1981

Answers (1)

user1312021
user1312021

Reputation: 11

The entity manager don't like your String parameter.

Caused by: java.lang.IllegalArgumentException: You have provided an
instance of an incorrect PK class for this find operation.  Class
expected : class java.lang.Integer, Class received : class
java.lang.String.

The find method of the entity manager search for a entity with the given id or from the db view with the given PK. I think you have a Book entity like this:

@Entity    
public class Book {

   @Id
   private Integer isbn;


....

So you have to pass a Integer to the find method.

em.find(Integer.parseInt(isbn)) //just a hack

I hope that helps you.

Upvotes: 1

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