Zend+Soap服务器+原则，serviceLocator/serviceManager错误

我正试图用soap公开一些数据。

这是我的控制器拿着服务器（这里一切正常）：

命名空间Application''Controller；

use Zend'Mvc'Controller'AbstractActionController;
use Zend'View'Model'ViewModel;
use Zend'Json'Json;
use Zend'Soap'Server;
use Zend'Soap'AutoDiscover;
class ExportController extends AbstractActionController
{
private $_options  = array('soap_version' => SOAP_1_2);
private $_URI      = '/export';
private $_WSDL_URI = '/export?wsdl';
private $wsdl;
public function indexAction() {
    if (isset($_GET['wsdl'])) {
        $this->handleWSDL();
    } else {
        $this->handleSOAP();
    }
    return $this->getResponse();
}
private function handleWSDL() {
    $serverUrl    = strtolower(dirname($_SERVER['SERVER_PROTOCOL']))."://".$_SERVER['HTTP_HOST'].":".$_SERVER['SERVER_PORT']."/Moving-BO/public";
    $autodiscover = new AutoDiscover(new 'Zend'Soap'Wsdl'ComplexTypeStrategy'ArrayOfTypeSequence());
    $autodiscover->setClass('Application'WebService'ExportClass')
                 ->setUri($serverUrl.$this->_URI)
                 ->setServiceName('MySoapService');
    $autodiscover->handle();
    $this->wsdl = $autodiscover->generate();
}
private function handleSOAP() {
    $serverUrl = strtolower(dirname($_SERVER['SERVER_PROTOCOL']))."://".$_SERVER['HTTP_HOST'].":".$_SERVER['SERVER_PORT']."/Moving-BO/public";
    $soap      = new Server($serverUrl.$this->_WSDL_URI, $this->_options);
    $soap->setClass('Application'WebService'ExportClass');
    $soap->handle();
    }
}

然后这是我要导出的类：

namespace Application'WebService;
use Zend'Mvc'Controller'AbstractActionController;
use Zend'ServiceManager'ServiceLocatorAwareInterface;
use Zend'ServiceManager'ServiceManagerAwareInterface;
use Zend'ServiceManager'ServiceLocatorInterface;
use Zend'ServiceManager'ServiceManagerInterface;
use Doctrine'ORM'EntityManager;
use Zend'Json'Json;
use Parcours'Entity'Parcours;
class ExportClass implements ServiceLocatorAwareInterface
{

protected $em;
public function setServiceLocator(ServiceLocatorInterface $serviceLocator) 
{ 
    $this->serviceLocator = $serviceLocator; 
    return $this; 
}
public function getServiceLocator()
{ 
    return $this->serviceLocator; 
}
public function setEntityManager(EntityManager $em)
{
    $this->em = $em;
}
public function getEntityManager()
{
    $this->em = $this->getServiceLocator()->get('Doctrine'ORM'EntityManager');
    return $this->em;
}

/**
 * Dit bonjour!
 *
 *
 * @return string
 */
public function helloWorld(){
    return 'coucou';
}
/**
 * Retourne le titre d'un parcours
 * 
 * @param integer $id
 * @return array
 */
public function getParcours($id){
    $parcours = $this->getEntityManager()->getRepository('Parcours'Entity'Parcours')->findOneBy(array('id'=>$id));
    return $parcours->toArray();
}
}

我还有一个测试客户端，第一个函数：helloWorld（）运行良好，但第二个函数：getParcours（$id）返回以下错误：

 Call to a member function get() on a non-object

它类似于getServiceLocator（）返回null。我使用了一段类似的代码——AbstractActionController：ParcoursController，它运行得很好。为什么我不能在这里这样做？

[编辑]好吧，我尝试了其他方法，我在ParcoursController中创建了一个get函数，并将该函数调用到ExportClass中，而不是在ExportClass中使用EntityManager。我的ParcoursController已经在使用EntityManager将我的数据显示到页面中，因此它应该可以工作。但结果是一样的。我似乎应该以某种方式通过SOAP服务传递我的serviceLocator。我认为这不是个好主意。