我正在尝试创建一个使用Activiti作为其流程引擎的Grails应用程序。为此，我希望将主要的Activiti服务类（RuntimeService，TaskService等）作为Spring bean连接。
我相信我已经正确地进行了布线设置，但是当我运行一个调用运行时服务的简单集成测试时，我得到一个错误，Spring无法打开一个休眠会话（参见完整堆栈跟踪，下面）。
更新：我可以使用run-app启动应用程序，然后调用调用我的服务的控制器操作，一切正常。因此，Activiti布线工作，它与Grails Integration Testing mixin有一些冲突。
我真的希望Activiti服务使用与Grails应用程序相同的数据源连接。我假设问题在于，当Grails已经有一个集成测试设置时，Activiti正在尝试创建自己的ConnectionHolder实例。
我的具体（也可能是误导）问题是，如何配置我的Activiti ProcessEngine，以便它使用与我的Grails应用程序相同的数据源和hibernate连接？
更一般的问题是，如何才能最好地为我的Grails应用程序提供Activiti服务？我看过the Activiti plugin for grails，它的来源帮助我做到了这一点。但是，我宁愿不使用该插件;它没有使用最新的活动，它的开发并不是非常活跃，而且在任何情况下它都不是我真正需要的。
| Failure: start approver request(com.package.MyServiceSpec)
| org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is java.lang.IllegalStateException: Already value [org.springframework.jdbc.datasource.ConnectionHolder@7f2e1821] for key [org.springframework.jdbc.datasource.LazyConnectionDa
at grails.test.mixin.integration.IntegrationTestMixin.initIntegrationTest(IntegrationTestMixin.groovy:58)
at org.spockframework.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:138)
at org.spockframework.runtime.extension.builtin.JUnitFixtureMethodsExtension$FixtureType$FixtureMethodInterceptor.intercept(JUnitFixtureMethodsExtension.java:145)
at org.spockframework.runtime.extension.MethodInvocation.proceed(MethodInvocation.java:84)
at org.spockframework.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:138)
at org.spockframework.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:138)
at org.spockframework.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:138)
Caused by: org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is java.lang.IllegalStateException: Already value [org.springframework.jdbc.datasource.ConnectionHolder@7f2e1821] for key [org.springframework.jdbc.datasource.LazyConn
... 7 more
Caused by: java.lang.IllegalStateException: Already value [org.springframework.jdbc.datasource.ConnectionHolder@7f2e1821] for key [org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy@1b7aeb] bound to thread [main]
... 7 more
| Completed 1 integration test, 1 failed in 0m 1s
import org.activiti.engine.ProcessEngine
import org.activiti.spring.ProcessEngineFactoryBean
import org.activiti.explorer.form.*
import org.activiti.spring.SpringProcessEngineConfiguration
import grails.util.Environment
//These imports are only needed in the test environment for building an h2 database for activiti during unit tests
import org.springframework.jdbc.datasource.DataSourceTransactionManager
import org.springframework.jdbc.datasource.SimpleDriverDataSource
beans = {
processEngineConfig(SpringProcessEngineConfiguration) {
dataSource = ref('dataSource')
transactionManager = ref('transactionManager')
databaseType = 'oracle'
databaseSchema = 'OURSCHEMA'
databaseSchemaUpdate = false
jobExecutorActivate = true
}
processEngine(ProcessEngineFactoryBean) {
processEngineConfiguration = ref("processEngineConfig")
}
runtimeService(processEngine: "getRuntimeService")
repositoryService(processEngine: "getRepositoryService")
taskService(processEngine: "getTaskService")
managementService(processEngine: "getManagementService")
historyService(processEngine: "getHistoryService")
formService(processEngine: "getFormService")
}
class MyService {
def foapAuthFoapService
def processEngine
def runtimeService
def repositoryService
def taskService
def managementService
def historyService
def formService
/**
* Start the activiti process.
*
*/
def startRequest(String requester, String subject, String designatedApprover) {
runtimeService.startProcessInstanceByKey('MyProcess', ["requester": requester, "subject": subject, "designatedApprover": designatedApprover])
}
}
def "start request"() {
setup:
def approverRequest = service.startRequest(requester, subject, designatedApprover)
def variables = runtimeService.getVariables(approverRequest.id) //approverRequest.getProcessVariables()
expect:
approverRequest instanceof ProcessInstance
variables.entrySet().contailsAll(["designatedApprover": designatedApprover, "requester": requester, "subject": subject].entrySet())
where:
requester | subject | designatedApprover
"abc123" | "def456"| "hij789"
}