public abstract class HandlerInterceptorAdapter extends java.lang.Object implements AsyncHandlerInterceptor
AsyncHandlerInterceptor
interface,
for simplified implementation of pre-only/post-only interceptors.Constructor and Description |
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HandlerInterceptorAdapter() |
Modifier and Type | Method and Description |
---|---|
void |
afterCompletion(HttpServletRequest request,
HttpServletResponse response,
java.lang.Object handler,
java.lang.Exception ex)
This implementation is empty.
|
void |
afterConcurrentHandlingStarted(HttpServletRequest request,
HttpServletResponse response,
java.lang.Object handler)
This implementation is empty.
|
void |
postHandle(HttpServletRequest request,
HttpServletResponse response,
java.lang.Object handler,
ModelAndView modelAndView)
This implementation is empty.
|
boolean |
preHandle(HttpServletRequest request,
HttpServletResponse response,
java.lang.Object handler)
This implementation always returns
true . |
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, java.lang.Object handler) throws java.lang.Exception
true
.preHandle
in interface HandlerInterceptor
request
- current HTTP requestresponse
- current HTTP responsehandler
- chosen handler to execute, for type and/or instance evaluationtrue
if the execution chain should proceed with the
next interceptor or the handler itself. Else, DispatcherServlet assumes
that this interceptor has already dealt with the response itself.java.lang.Exception
- in case of errorspublic void postHandle(HttpServletRequest request, HttpServletResponse response, java.lang.Object handler, @Nullable ModelAndView modelAndView) throws java.lang.Exception
postHandle
in interface HandlerInterceptor
request
- current HTTP requestresponse
- current HTTP responsehandler
- handler (or HandlerMethod
) that started asynchronous
execution, for type and/or instance examinationmodelAndView
- the ModelAndView
that the handler returned
(can also be null
)java.lang.Exception
- in case of errorspublic void afterCompletion(HttpServletRequest request, HttpServletResponse response, java.lang.Object handler, @Nullable java.lang.Exception ex) throws java.lang.Exception
afterCompletion
in interface HandlerInterceptor
request
- current HTTP requestresponse
- current HTTP responsehandler
- handler (or HandlerMethod
) that started asynchronous
execution, for type and/or instance examinationex
- exception thrown on handler execution, if anyjava.lang.Exception
- in case of errorspublic void afterConcurrentHandlingStarted(HttpServletRequest request, HttpServletResponse response, java.lang.Object handler) throws java.lang.Exception
afterConcurrentHandlingStarted
in interface AsyncHandlerInterceptor
request
- the current requestresponse
- the current responsehandler
- the handler (or HandlerMethod
) that started async
execution, for type and/or instance examinationjava.lang.Exception
- in case of errors