jhipster microservice 이상한 문제가있는 Drools 규칙

Question

jhipster 버전 v3.11.0을 사용하여 maven을 사용하여 마이크로 서비스 응용 프로그램을 생성하고 있습니다. pom.xml 파일에 종속성을 추가하여 droops 규칙 6.5.0_Final을 통합했습니다.

내이 샘 규칙이 울부 짖는 소리입니다 : 지식

package dr.test.rules; 

import dr.test.drools.OrderEvent; 

global OrderEvent orderEvent; 

dialect "java" 

rule rule_1 
when  
then 
    orderEvent.setPrice(7880.2); 
end 

내 세션 :

이

OrderEvent orderEvent = new OrderEvent(); 
orderEvent.setPrice(60000.1); 
orderEvent.setCustomer("cust"); 
KieSession kieSession = kieContainer.newKieSession("DrTestSession"); 
kieSession.setGlobal("orderEvent", orderEvent); 

kieSession.fireAllRules(); 

kieSession.dispose(); 

System.out.println(orderEvent.getPrice()); 

OrderEvent.java가 :

package dr.test.drools; 

public class OrderEvent implements Event { 

    private Double price; 
    private String customer; 

    public Double getPrice() { 
     return price; 
    } 

    public void setPrice(Double price) { 
     this.price = price; 
    } 

    public String getCustomer() { 
     return customer; 
    } 

    public void setCustomer(String customer) { 
     this.customer = customer; 
    } 
} 

그것은 정상적인 봄 부팅에서 잘 작동 1.4.2하지만, jhipster 프로젝트 (봄 부팅 1.4.2도), 아주 이상한 예외가 발생했습니다 :

java.lang.RuntimeException: Illegal class for global. Expected [dr.test.drools.OrderEvent], found [dr.test.drools.OrderEvent]. 
    at org.drools.core.impl.StatefulKnowledgeSessionImpl.setGlobal(StatefulKnowledgeSessionImpl.java:1217) 
    at dr.test.web.rest.ProfileInfoResource.getDrTest(ProfileInfoResource.java:61) 
    at dr.test.web.rest.ProfileInfoResource$$FastClassBySpringCGLIB$$f63fa1c1.invoke(<generated>) 
    at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) 
    at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) 
    at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:85) 
    at dr.test.aop.logging.LoggingAspect.logAround(LoggingAspect.java:52) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629) 
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:618) 
    at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:48) 
    at com.ryantenney.metrics.spring.TimedMethodInterceptor.invoke(TimedMethodInterceptor.java:34) 
    at com.ryantenney.metrics.spring.AbstractMetricMethodInterceptor.invoke(AbstractMetricMethodInterceptor.java:59) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655) 
    at dr.test.web.rest.ProfileInfoResource$$EnhancerBySpringCGLIB$$9985fc7b.getAllVehicleProperties(<generated>) 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
    at java.lang.reflect.Method.invoke(Unknown Source) 
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:220) 
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:134) 
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) 
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) 
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) 
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) 
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) 
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) 
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) 
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) 
    at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) 
    at com.codahale.metrics.servlet.AbstractInstrumentedFilter.doFilter(AbstractInstrumentedFilter.java:104) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:105) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:208) 
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) 
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) 
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:89) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) 
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
    at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61) 
    at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) 
    at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) 
    at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) 
    at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) 
    at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) 
    at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) 
    at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) 
    at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60) 
    at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77) 
    at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) 
    at io.undertow.servlet.handlers.SessionRestoringHandler.handleRequest(SessionRestoringHandler.java:119) 
    at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:285) 
    at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:264) 
    at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81) 
    at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:175) 
    at io.undertow.server.Connectors.executeRootHandler(Connectors.java:207) 
    at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:802) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

여기에 문제는 캐스트 문제입니다. [dr.test.drools.OrderEvent]가 [dr.test.drools.OrderEvent]와 (과) diff 인 것 같습니다. 스프링 부트 구성 또는 여러 클래스 로더와 관련이 있다고 생각합니다. 이 문제를 해결할 생각인가요?

Answer 1

다른 클래스 로더 때문에 문제가 발생한다는 것을 알았습니다. 스프링 devtools이이 문제로 인해 발생했습니다. 그래서 그것을 제거하고 클래스 로더를 추가하여 KieContainer뿐만 아니라 팩토리를 빌드합니다.

KieServices kieServices = KieServices.Factory.get(); KieFileSystem kieFileSystem = kieServices.newKieFileSystem();

kieFileSystem.write("src/main/resources/script.drl", drl); 

    log.info("Executing script:\n{}", drl); 

    KieBuilder kieBuilder = kieServices.newKieBuilder(kieFileSystem, getClass().getClassLoader()); 
    kieBuilder.buildAll(); 

    KieContainer kieContainer = kieServices.newKieContainer(kieServices.getRepository().getDefaultReleaseId(), getClass().getClassLoader()); 
    StatelessKieSession statelessKieSession = kieContainer.getKieBase().newStatelessKieSession(); 

    statelessKieSession.execute(object);