AnnotationMethodHandlerAdapter.java 文件源码

private String determineDefaultPhase(Method handlerMethod) {
    if (void.class != handlerMethod.getReturnType()) {
        return PortletRequest.RENDER_PHASE;
    }
    for (Class<?> argType : handlerMethod.getParameterTypes()) {
        if (ActionRequest.class.isAssignableFrom(argType) || ActionResponse.class.isAssignableFrom(argType) ||
                InputStream.class.isAssignableFrom(argType) || Reader.class.isAssignableFrom(argType)) {
            return PortletRequest.ACTION_PHASE;
        }
        else if (RenderRequest.class.isAssignableFrom(argType) || RenderResponse.class.isAssignableFrom(argType) ||
                OutputStream.class.isAssignableFrom(argType) || Writer.class.isAssignableFrom(argType)) {
            return PortletRequest.RENDER_PHASE;
        }
        else if (ResourceRequest.class.isAssignableFrom(argType) || ResourceResponse.class.isAssignableFrom(argType)) {
            return PortletRequest.RESOURCE_PHASE;
        }
        else if (EventRequest.class.isAssignableFrom(argType) || EventResponse.class.isAssignableFrom(argType)) {
            return PortletRequest.EVENT_PHASE;
        }
    }
    return "";
}