Java ModelAndViewContainer.isRequestHandled方法代碼示例

import org.springframework.web.method.support.ModelAndViewContainer; //導入方法依賴的package包/類
private ModelAndView getModelAndView(ModelAndViewContainer mavContainer,
		ModelFactory modelFactory, NativeWebRequest webRequest) throws Exception {

	modelFactory.updateModel(webRequest, mavContainer);
	if (mavContainer.isRequestHandled()) {
		return null;
	}
	ModelMap model = mavContainer.getModel();
	ModelAndView mav = new ModelAndView(mavContainer.getViewName(), model);
	if (!mavContainer.isViewReference()) {
		mav.setView((View) mavContainer.getView());
	}
	if (model instanceof RedirectAttributes) {
		Map<String, ?> flashAttributes = ((RedirectAttributes) model).getFlashAttributes();
		HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
		RequestContextUtils.getOutputFlashMap(request).putAll(flashAttributes);
	}
	return mav;
}
 

import org.springframework.web.method.support.ModelAndViewContainer; //導入方法依賴的package包/類
/**
 * Synchronize model attributes with the session. Add {@link BindingResult}
 * attributes where necessary.
 * @param request the current request
 * @param mavContainer contains the model to update
 * @throws Exception if creating BindingResult attributes fails
 */
public void updateModel(NativeWebRequest request, ModelAndViewContainer mavContainer) throws Exception {

	if (mavContainer.getSessionStatus().isComplete()){
		this.sessionAttributesHandler.cleanupAttributes(request);
	}
	else {
		this.sessionAttributesHandler.storeAttributes(request, mavContainer.getModel());
	}

	if (!mavContainer.isRequestHandled()) {
		updateBindingResult(request, mavContainer.getModel());
	}
}
 

import org.springframework.web.method.support.ModelAndViewContainer; //導入方法依賴的package包/類
/**
 * Invokes the method and handles the return value through one of the
 * configured {@link HandlerMethodReturnValueHandler}s.
 * @param webRequest the current request
 * @param mavContainer the ModelAndViewContainer for this request
 * @param providedArgs "given" arguments matched by type (not resolved)
 */
public void invokeAndHandle(ServletWebRequest webRequest,
		ModelAndViewContainer mavContainer, Object... providedArgs) throws Exception {

	Object returnValue = invokeForRequest(webRequest, mavContainer, providedArgs);
	setResponseStatus(webRequest);

	if (returnValue == null) {
		if (isRequestNotModified(webRequest) || hasResponseStatus() || mavContainer.isRequestHandled()) {
			mavContainer.setRequestHandled(true);
			return;
		}
	}
	else if (StringUtils.hasText(this.responseReason)) {
		mavContainer.setRequestHandled(true);
		return;
	}

	mavContainer.setRequestHandled(false);
	try {
		this.returnValueHandlers.handleReturnValue(
				returnValue, getReturnValueType(returnValue), mavContainer, webRequest);
	}
	catch (Exception ex) {
		if (logger.isTraceEnabled()) {
			logger.trace(getReturnValueHandlingErrorMessage("Error handling return value", returnValue), ex);
		}
		throw ex;
	}
}
 

import org.springframework.web.method.support.ModelAndViewContainer; //導入方法依賴的package包/類
/**
 * Promote model attributes listed as {@code @SessionAttributes} to the session.
 * Add {@link BindingResult} attributes where necessary.
 * @param request the current request
 * @param mavContainer contains the model to update
 * @throws Exception if creating BindingResult attributes fails
 */
public void updateModel(NativeWebRequest request, ModelAndViewContainer mavContainer) throws Exception {
	ModelMap defaultModel = mavContainer.getDefaultModel();
	if (mavContainer.getSessionStatus().isComplete()){
		this.sessionAttributesHandler.cleanupAttributes(request);
	}
	else {
		this.sessionAttributesHandler.storeAttributes(request, defaultModel);
	}
	if (!mavContainer.isRequestHandled() && mavContainer.getModel() == defaultModel) {
		updateBindingResult(request, defaultModel);
	}
}
 

import org.springframework.web.method.support.ModelAndViewContainer; //導入方法依賴的package包/類
/**
 * Find an {@code @ExceptionHandler} method and invoke it to handle the raised exception.
 */
@Override
protected ModelAndView doResolveHandlerMethodException(HttpServletRequest request,
		HttpServletResponse response, HandlerMethod handlerMethod, Exception exception) {

	ServletInvocableHandlerMethod exceptionHandlerMethod = getExceptionHandlerMethod(handlerMethod, exception);
	if (exceptionHandlerMethod == null) {
		return null;
	}

	exceptionHandlerMethod.setHandlerMethodArgumentResolvers(this.argumentResolvers);
	exceptionHandlerMethod.setHandlerMethodReturnValueHandlers(this.returnValueHandlers);

	ServletWebRequest webRequest = new ServletWebRequest(request, response);
	ModelAndViewContainer mavContainer = new ModelAndViewContainer();

	try {
		if (logger.isDebugEnabled()) {
			logger.debug("Invoking @ExceptionHandler method: " + exceptionHandlerMethod);
		}
		exceptionHandlerMethod.invokeAndHandle(webRequest, mavContainer, exception, handlerMethod);
	}
	catch (Exception invocationEx) {
		if (logger.isErrorEnabled()) {
			logger.error("Failed to invoke @ExceptionHandler method: " + exceptionHandlerMethod, invocationEx);
		}
		return null;
	}

	if (mavContainer.isRequestHandled()) {
		return new ModelAndView();
	}
	else {
		ModelAndView mav = new ModelAndView().addAllObjects(mavContainer.getModel());
		mav.setViewName(mavContainer.getViewName());
		if (!mavContainer.isViewReference()) {
			mav.setView((View) mavContainer.getView());
		}
		return mav;
	}
}