Dear all.
I've just started using Activiti BPM , it 's really awesome. However, I have problems now, it takes me hours this afternoon.
First I created a java class
Then, a simple Activiti Diagram
I also define bean xml
A small unit test to run
And I have errors.
Oh, why
. Please, help me, I am so confusing.
I've just started using Activiti BPM , it 's really awesome. However, I have problems now, it takes me hours this afternoon.
First I created a java class
package org.bpmnwithactiviti.chapter1;public class Test { public void sayHello(){ System.out.println("Hello World"); }}Then, a simple Activiti Diagram
<?xml version="1.0" encoding="UTF-8"?><definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:activiti="http://activiti.org/bpmn" xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI" xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC" xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI" typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath" targetNamespace="http://www.activiti.org/test"> <process id="testBpm" name="My process" isExecutable="true"> <startEvent id="startevent1" name="Start"></startEvent> <serviceTask id="servicetask1" name="Service Task" activiti:expression="#{testExpression.sayHello()}"></serviceTask> <endEvent id="endevent1" name="End"></endEvent> <sequenceFlow id="flow1" sourceRef="startevent1" targetRef="servicetask1"></sequenceFlow> <sequenceFlow id="flow2" sourceRef="servicetask1" targetRef="endevent1"></sequenceFlow> </process></definitions>I also define bean xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd"> <bean id="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneInMemProcessEngineConfiguration"> <property name="databaseSchemaUpdate" value="true" /> <property name="history" value="full" /> <property name="jobExecutorActivate" value="false" /> </bean> <bean id="testExpression" class="org.bpmnwithactiviti.chapter1.Test"> </bean></beans>A small unit test to run
package org.bpmnwithactiviti.chapter1;import org.activiti.engine.ProcessEngine;import org.activiti.engine.ProcessEngineConfiguration;import org.activiti.engine.RepositoryService;import org.activiti.engine.RuntimeService;import org.activiti.engine.runtime.ProcessInstance;import org.junit.Test;public class SimpleProcessTest { @Test public void startBookOrder() { ProcessEngine processEngine = ProcessEngineConfiguration .createStandaloneInMemProcessEngineConfiguration() .buildProcessEngine(); RuntimeService runtimeService = processEngine.getRuntimeService(); RepositoryService repositoryService = processEngine.getRepositoryService(); repositoryService.createDeployment() .addClasspathResource("chapter1/test.bpmn20.xml") .deploy(); ProcessInstance processInstance = runtimeService.startProcessInstanceByKey( "testBpm"); }}And I have errors.
org.activiti.engine.ActivitiException: Unknown property used in expression at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:55) at org.activiti.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior.execute(ServiceTaskExpressionActivityBehavior.java:39) at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:44) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:52) at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:49) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:49) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:65) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:115) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36) at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:365) at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:102) at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:51) at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44) at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.execute(FlowNodeActivityBehavior.java:36) at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:44) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationProcessStartInitial.eventNotificationsCompleted(AtomicOperationProcessStartInitial.java:46) at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.pvm.runtime.AtomicOperationProcessStart.eventNotificationsCompleted(AtomicOperationProcessStart.java:45) at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:56) at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:77) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperationSync(ExecutionEntity.java:530) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:525) at org.activiti.engine.impl.persistence.entity.ExecutionEntity.start(ExecutionEntity.java:319) at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:72) at org.activiti.engine.impl.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:31) at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24) at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42) at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33) at org.activiti.engine.impl.RuntimeServiceImpl.startProcessInstanceByKey(RuntimeServiceImpl.java:46) at org.bpmnwithactiviti.chapter1.SimpleProcessTest.startBookOrder(SimpleProcessTest.java:26) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:76) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)Caused by: org.activiti.engine.impl.javax.el.PropertyNotFoundException: Cannot resolve identifier 'testExpression' at org.activiti.engine.impl.juel.AstIdentifier.eval(AstIdentifier.java:83) at org.activiti.engine.impl.juel.AstMethod.invoke(AstMethod.java:79) at org.activiti.engine.impl.juel.AstMethod.eval(AstMethod.java:75) at org.activiti.engine.impl.juel.AstEval.eval(AstEval.java:50) at org.activiti.engine.impl.juel.AstNode.getValue(AstNode.java:26) at org.activiti.engine.impl.juel.TreeValueExpression.getValue(TreeValueExpression.java:114) at org.activiti.engine.impl.delegate.ExpressionGetInvocation.invoke(ExpressionGetInvocation.java:33) at org.activiti.engine.impl.delegate.DelegateInvocation.proceed(DelegateInvocation.java:37) at org.activiti.engine.impl.delegate.DefaultDelegateInterceptor.handleInvocation(DefaultDelegateInterceptor.java:25) at org.activiti.engine.impl.el.JuelExpression.getValue(JuelExpression.java:50) … 80 moreOh, why
. Please, help me, I am so confusing.
