Grails集成测试和sessionFactory.currentSession [英] Grails integration test and sessionFactory.currentSession

问题描述

从远程服务器加载数据的过程，由REST调用触发。集成测试失败：

  java.lang.NullPointerException：无法在空对象上获取属性'currentSession'
  

加载大量数据，所以调用每载入几百条记录：

  protected cleanUpGorm（）{
 def session = sessionFactory.currentSession 
 session.flush（）
 session.clear（）
} 
  

如上所述，会话工厂未加载。这是一个'助手时髦类' - 既不是服务也不是控制器。我现在必须按照GrailsApplication传递sessionFactory吗？

解决方案

问题是将sessionFactorybean注入到常规的groovy类中。
它应该可以使用下面的代码访问：

pre $ ApplicationContext context =（ApplicationContext）ServletContextHolder.getServletContext（）。getAttribute （GrailsApplicationAttributes.APPLICATION_CONTEXT）;
SessionFactory sessionFactory = context.getBean（'sessionFactory'）
Session currentSession = sessionFactory.getCurrentSession（）

另一种获取当前会话的技术可以使用grails工具类：

 会话会话= RequestContextHolder.currentRequestAttributes （）.getSession（）
  

或

  Session session = WebUtils.retrieveGrailsWebRequest（）。session 
  

Process that loads data from a remote server, triggered by a REST call. The integration test fails with:

java.lang.NullPointerException: Cannot get property 'currentSession' on null object

The loads a lot of data, so calls flush every few hundred records loaded:

protected cleanUpGorm() {
    def session = sessionFactory.currentSession
    session.flush()
    session.clear()
}

As noted the session factory is not loaded. This is a 'helper groovy class' - neither service or controller. Do I have to now pass sessionFactory as per GrailsApplication?

解决方案

The problem is with injection "sessionFactory" bean into regular groovy class. It should be accessible using the following code:

ApplicationContext context = (ApplicationContext) ServletContextHolder.getServletContext().getAttribute(GrailsApplicationAttributes.APPLICATION_CONTEXT);
SessionFactory sessionFactory = context.getBean('sessionFactory')
Session currentSession = sessionFactory.getCurrentSession()

Another technique for fetching the current session can be using grails utility class:

Session session = RequestContextHolder.currentRequestAttributes().getSession()

or

Session session = WebUtils.retrieveGrailsWebRequest().session

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