程序包 cn.taketoday.web

接口 HandlerInterceptor

所有已知实现类:

AbstractHandlerMapping.CorsInterceptor, CorsHandlerInterceptor, LocaleChangeInterceptor, MappedInterceptor, SessionHandlerInterceptor, WebContentInterceptor

public interface HandlerInterceptor

Handler process around Handler.

作者:

TODAY 2018-06-25 20:06:11

字段概要

字段

修饰符和类型	字段	说明
static final HandlerInterceptor[]	EMPTY_ARRAY	empty HandlerInterceptor array
static final Object	NONE_RETURN_VALUE	NONE_RETURN_VALUE

方法概要

修饰符和类型	方法	说明
default void	afterProcess(RequestContext request, Object handler, Object result)	After Handler processed.
default boolean	beforeProcess(RequestContext request, Object handler)	Before Handler process.
default Object	intercept(RequestContext request, InterceptorChain chain)	handler's interceptor intercept entrance

字段详细资料

EMPTY_ARRAY

static final HandlerInterceptor[] EMPTY_ARRAY

empty HandlerInterceptor array

NONE_RETURN_VALUE

static final Object NONE_RETURN_VALUE

NONE_RETURN_VALUE

方法详细资料

beforeProcess

default boolean beforeProcess(RequestContext request,
 Object handler)
                       throws Throwable

Before Handler process.

参数:

request - Current request Context

handler - Request handler , HandlerMethod

返回:

If is it possible to execute the target handler

抛出:

Throwable - If any exception occurred

另请参阅:

• HandlerMethod.unwrap(Object)

afterProcess

default void afterProcess(RequestContext request,
 Object handler,
 Object result)
                   throws Throwable

After Handler processed.

参数:

request - Current request Context

handler - Request handler, HandlerMethod

result - Handler returned value

抛出:

Throwable - If any exception occurred

另请参阅:

• HandlerMethod.unwrap(Object)

intercept

default Object intercept(RequestContext request,
 InterceptorChain chain)
                  throws Throwable

handler's interceptor intercept entrance

返回:

return value is target handler's result

抛出:

Throwable

从以下版本开始:

4.0

另请参阅:

• HandlerMethod.unwrap(Object)