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java.lang.Objectorg.springframework.web.servlet.mvc.method.annotation.ViewNameMethodReturnValueHandler
public class ViewNameMethodReturnValueHandler
Handles return values of types void and String interpreting
them as view name reference.
A null return value, either due to a void return type or
as the actual return value is left as-is allowing the configured
RequestToViewNameTranslator to select a view name by convention.
A String return value can be interpreted in more than one ways depending
on the presence of annotations like @ModelAttribute or
@ResponseBody. Therefore this handler should be configured after
the handlers that support these annotations.
| Constructor Summary | |
|---|---|
ViewNameMethodReturnValueHandler()
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| Method Summary | |
|---|---|
void |
handleReturnValue(Object returnValue,
MethodParameter returnType,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest)
Handle the given return value by adding attributes to the model and setting a view or setting the ModelAndViewContainer.setRequestHandled(boolean) flag to true
to indicate the response has been handled directly. |
protected boolean |
isRedirectViewName(String viewName)
Whether the given view name is a redirect view reference. |
boolean |
supportsReturnType(MethodParameter returnType)
Whether the given method return type is supported by this handler. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public ViewNameMethodReturnValueHandler()
| Method Detail |
|---|
public boolean supportsReturnType(MethodParameter returnType)
HandlerMethodReturnValueHandler
supportsReturnType in interface HandlerMethodReturnValueHandlerreturnType - the method return type to check
true if this handler supports the supplied return type;
false otherwise
public void handleReturnValue(Object returnValue,
MethodParameter returnType,
ModelAndViewContainer mavContainer,
NativeWebRequest webRequest)
throws Exception
HandlerMethodReturnValueHandlerModelAndViewContainer.setRequestHandled(boolean) flag to true
to indicate the response has been handled directly.
handleReturnValue in interface HandlerMethodReturnValueHandlerreturnValue - the value returned from the handler methodreturnType - the type of the return value. This type must have
previously been passed to
HandlerMethodReturnValueHandler.supportsReturnType(org.springframework.core.MethodParameter)
and it must have returned truemavContainer - the ModelAndViewContainer for the current requestwebRequest - the current request
Exception - if the return value handling results in an errorprotected boolean isRedirectViewName(String viewName)
viewName - the view name to check, never null
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