doWithDynamicMethods訪問服務

Question

我很難訪問doWithDynamicMethod中的特定服務。

def doWithDynamicMethods = { ctx -> 
     def nodeDriverProxy = application.getServiceClass('NodeDriverProxyService') 
     application.domainClasses.each{ cClass -> 
      delegate.log.warn('cClass: ' + cClass.toString()) 
      cClass.metaClass.cacheInstance = { domainIns-> 
       delegate.log.warn "domain is being cached id: ? with version ?" 
       nodeDriverProxy.registerUpdate(domainIns.id, domainIns.version) 
      } 

變量nodeDriveProxy爲空，或者在訪問'application.serviceClasses'時出現異常我做錯了什麼？謝謝

Answer 1

你不想要GrailsServiceClass，你想要的服務實例。你有ctx變量，它是Spring ApplicationContext，所以這將是

def doWithDynamicMethods = { ctx -> 
    def service = ctx.nodeDriverProxyService 
    application.domainClasses.each { cClass -> 
     delegate.log.warn('cClass: ' + cClass.toString()) 
     cClass.metaClass.cacheInstance = { domainIns -> 
     delegate.log.warn "domain is being cached id: ? with version ?" 
     service.registerUpdate(domainIns.id, domainIns.version) 
     } 
    } 
}