// 2. CustomizeFilterHandler
// 3. CustomizeServletHandler
IFwkHandlerChain handlerChain = helper
.constructHandlerChain(needRefreshHandlerChain
.getAndSet(false));
handlerChain.start((BundledHttpServletRequestWrapper) req,
(HttpServletResponseWrapper) res);
} catch (Throwable t) {
// t.printStackTrace();
exceptionThrowed = true;
String msg = t.getMessage();