ActionServletContext.init(actionServletContext); // 初始化上下文
try {
// 加载Action工厂
ActionProvider actionProvider = getActionProvider();
if (actionProvider == null)// 缺省使用SpringActionProvider
actionProvider = new SpringActionProvider();
ActionServletContext.getContext().setActionProvider(actionProvider);
actionInterceptor = reduceActionInterceptorChain(actionProvider.getActionInterceptors());
// 加载Action接收器
ActionMapper actionMapper = getActionMapper();