java - HybrisContextFactory - 初始化全局应用程序上下文时出错

Question

我尝试将应用程序的版本从 Hybris 4.8 迁移到 Hybris 5.6.0.5。

当服务器启动时，我遇到了这个异常:

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'csTicketFacade' defined in class path resource [CoopAcceleratorFrontEndfacades-spring.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class  [com.accenture.hybris.facades.customerservice.impl.CoopCSTicketFacade]: Constructor threw exception; nested exception is java.lang.NullPointerException

INFO   | jvm 1    | main    | 2016/01/20 11:41:54.777 | Caused by: java.lang.NullPointerException
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.790 |     at com.accenture.facades.common.FlexSelector.getPropertiesReader(FlexSelector.java:27)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.797 |     at com.accenture.hybris.facades.customerservice.impl.CoopCSTicketFacade$TicketFlexSelector.getCsAgentGroupUID(CoopCSTicketFacade.java:68)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.805 |     at com.accenture.hybris.facades.customerservice.impl.CoopCSTicketFacade$TicketFlexSelector.getCsAgentGroupModel(CoopCSTicketFacade.java:31)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.809 |     at com.accenture.hybris.facades.customerservice.impl.CoopCSTicketFacade.<init>(CoopCSTicketFacade.java:80)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.820 |     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.823 |     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.828 |     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.834 |     at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.838 |     at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)
INFO   | jvm 1    | main    | 2016/01/20 11:41:54.843 |     ... 35 more

因为在 FlexSelector 类中:

protected static final ApplicationContext ctx = Registry.getApplicationContext();

spring的应用上下文为null。如果有人有任何想法请告诉我。

Answer 1

对应用程序上下文进行静态引用并不是一个好主意。相反，正如 @thijsraets 建议的那样，您应该为 flexSelector 创建类(class)。 bean 具ApplicationContextAware 。例如:

public class FlexSelector implements ApplicationContextAware  {
    ApplicationContext context;
    public ApplicationContext getContext() {
        return context;
    }
    @Override
    public void setApplicationContext(ApplicationContext context)
            throws BeansException {
        this.context=context;
    }
    [...]
}

这将确保当 Spring 连接 bean 时应用程序上下文被设置。

如果 FlexSelector 中有静态方法并需要其中的应用程序上下文，您应该始终通过 Registry.getApplicationContext() 在静态方法中动态查找它。调用而不是将其存储在静态变量中。