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问题描述： 代码中 execute()方法中， purchaseOrderService空指针异常！ mapper或者dao层的也是如此； 详见下面代码 public class YgPurchaseOrderJob extends BaseAction implements Job { private static Logger logger = Logger.getLogger(YgPurchaseOrderJob.class); @Autowired Purch..

框架：spring+Struts2 尝试1： protected Map getSession() throws Exception { return ActionContext.getContext().getSession(); } 结果：ActionContext空指针异常； 尝试2： public static HttpServletRequest getRequest(){ HttpServletRequest req = ((Serv