weblogic ejb ComplianceException

Question

我尝试部署在weblogic 10.3上使用EJB的应用程序。我使用的框架缝2.2.0

我创建了一个EJB项目和EAR项目与车间。

当我编译项目，我得到这个错误：

weblogic.ejb.container.compliance.ComplianceException: No business interface, component interface or web service endpoint interface found for Session Bean Authenticator 

这里是bean代码：

import javax.ejb.Local; 
import javax.ejb.Stateless; 
import javax.persistence.EntityManager; 
import org.jboss.seam.annotations.In; 
import org.jboss.seam.annotations.Logger; 
import org.jboss.seam.annotations.Name; 
import org.jboss.seam.contexts.SessionContext; 
import org.jboss.seam.faces.FacesMessages; 
import org.jboss.seam.faces.Redirect; 
import org.jboss.seam.log.Log; 
import org.jboss.seam.security.Credentials; 
import org.jboss.seam.security.Identity; 
import org.jboss.seam.security.crypto.BinTools; 
import org.jboss.seam.security.management.IdentityManager; 
import org.jboss.seam.security.management.JpaIdentityStore; 

@Stateless 
@Local 
@Name("authenticator") 
public class Authenticator { 
} 

这里是例外：

weblogic.ejb.container.compliance.ComplianceException: No business interface, component interface or web service endpoint interface found for Session Bean Authenticator 
    at weblogic.ejb.container.compliance.SessionBeanClassChecker.checkInterfacesExist(SessionBeanClassChecker.java:177) 
    at weblogic.ejb.container.compliance.Ejb30SessionBeanClassChecker.checkInterfacesExist(Ejb30SessionBeanClassChecker.java:27) 
    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 weblogic.ejb.container.compliance.EJBComplianceChecker.check(EJBComplianceChecker.java:337) 
    at weblogic.ejb.container.compliance.EJBComplianceChecker.checkDeploymentInfo(EJBComplianceChecker.java:286) 
    at weblogic.ejb.container.ejbc.EJBCompiler.complianceCheckJar(EJBCompiler.java:952) 
    at weblogic.ejb.container.ejbc.EJBCompiler.checkCompliance(EJBCompiler.java:920) 
    at weblogic.ejb.container.ejbc.EJBCompiler.doCompile(EJBCompiler.java:246) 
    at weblogic.ejb.container.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:552) 
    at weblogic.ejb.container.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:519) 
    at weblogic.ejb.container.deployer.EJBDeployer.runEJBC(EJBDeployer.java:393) 
    at weblogic.ejb.container.deployer.EJBDeployer.compileJar(EJBDeployer.java:715) 
    at weblogic.ejb.container.deployer.EJBDeployer.compileIfNecessary(EJBDeployer.java:618) 
    at weblogic.ejb.container.deployer.EJBDeployer.prepare(EJBDeployer.java:1154) 
    at weblogic.ejb.container.deployer.EJBModule.prepare(EJBModule.java:425) 
    at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:387) 
    at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:58) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:42) 
    at weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:615) 
    at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) 
    at weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:191) 
    at weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:16) 
    at weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:155) 
    at weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:60) 
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:197) 
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:89) 
    at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:217) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:723) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1190) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:248) 
    at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:159) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:157) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:12) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:45) 
    at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516) 
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) 
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) 


    at weblogic.ejb.container.compliance.EJBComplianceChecker.check(EJBComplianceChecker.java:327) 
    at weblogic.ejb.container.compliance.EJBComplianceChecker.checkDeploymentInfo(EJBComplianceChecker.java:286) 
    at weblogic.ejb.container.ejbc.EJBCompiler.complianceCheckJar(EJBCompiler.java:952) 
    at weblogic.ejb.container.ejbc.EJBCompiler.checkCompliance(EJBCompiler.java:920) 
    at weblogic.ejb.container.ejbc.EJBCompiler.doCompile(EJBCompiler.java:246) 
    at weblogic.ejb.container.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:552) 
    at weblogic.ejb.container.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:519) 
    at weblogic.ejb.container.deployer.EJBDeployer.runEJBC(EJBDeployer.java:393) 
    at weblogic.ejb.container.deployer.EJBDeployer.compileJar(EJBDeployer.java:715) 
    at weblogic.ejb.container.deployer.EJBDeployer.compileIfNecessary(EJBDeployer.java:618) 
    at weblogic.ejb.container.deployer.EJBDeployer.prepare(EJBDeployer.java:1154) 
    at weblogic.ejb.container.deployer.EJBModule.prepare(EJBModule.java:425) 
    at weblogic.application.internal.flow.ModuleListenerInvoker.prepare(ModuleListenerInvoker.java:93) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow$1.next(DeploymentCallbackFlow.java:387) 
    at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:58) 
    at weblogic.application.internal.flow.DeploymentCallbackFlow.prepare(DeploymentCallbackFlow.java:42) 
    at weblogic.application.internal.BaseDeployment$1.next(BaseDeployment.java:615) 
    at weblogic.application.utils.StateMachineDriver.nextState(StateMachineDriver.java:37) 
    at weblogic.application.internal.BaseDeployment.prepare(BaseDeployment.java:191) 
    at weblogic.application.internal.EarDeployment.prepare(EarDeployment.java:16) 
    at weblogic.application.internal.DeploymentStateChecker.prepare(DeploymentStateChecker.java:155) 
    at weblogic.deploy.internal.targetserver.AppContainerInvoker.prepare(AppContainerInvoker.java:60) 
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:197) 
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:89) 
    at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:217) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:723) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1190) 
    at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:248) 
    at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:159) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:157) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:12) 
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:45) 
    at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:516) 
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201) 
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:173) 
> 

这里我的ejb-jar.xml：

<?xml version="1.0" encoding="UTF-8"?> 
<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" 
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd" 
     version="3.0">  
    <interceptors> 
     <interceptor> 
     <interceptor-class>org.jboss.seam.ejb.SeamInterceptor</interceptor-class> 
     </interceptor> 
    </interceptors> 

    <assembly-descriptor> 
     <interceptor-binding> 
     <ejb-name>Authentificator<ejb-name> 
     <interceptor-class>org.jboss.seam.ejb.SeamInterceptor</interceptor-class> 
     </interceptor-binding> 
    </assembly-descriptor> 
</ejb-jar> 

我不明白我的错误。

感谢您的帮助。

Answer 1

发生这种情况是因为Weblogic正在寻找Authenticator实现的接口。

更改为：

@Stateless 
@Name("authenticator") 
public class Authenticator implements AuthenticatorLocal { 

    @Override 
    public void oneMethod() 
    { 
     //enter code here 
    } 
} 

@Local 
public interface AuthenticatorLocal { 
    void oneMethod(); 
} 

注：接口必须至少有一个重写的方法，否则你会再次得到同样的错误。

Answer 2

是因为WebLogic将针对EJB本地服务的接口进行搜索：

@Stateless 
@Local 
@Name("authenticator") 
public class Authenticator { 
} 

，如果你实现一个接口，并将其提供给EJB这个问题就解决了。像这样：

@Stateless 
@Local(IAuthenticator.class) 
@Name("authenticator") 
public class Authenticator implements IAuthenticator{ 
//your business logic 
} 

public interface IAuthenticator { 
    // interface 
}