程序包 cn.taketoday.web

接口 HandlerExceptionHandler

所有已知实现类:

AbstractActionMappingMethodExceptionHandler, AbstractHandlerExceptionHandler, CompositeHandlerExceptionHandler, ExceptionHandlerAnnotationExceptionHandler, ResponseStatusExceptionHandler, SimpleActionMappingMethodExceptionHandler, SimpleHandlerExceptionHandler, SimpleMappingExceptionHandler

public interface HandlerExceptionHandler

Handle Exception from handler

从以下版本开始:

2020-03-29 20:52

作者:

TODAY

字段概要

字段

修饰符和类型	字段	说明
static final String	BEAN_NAME	Well-known name for the HandlerExceptionHandler object in the bean factory for this namespace.
static final Object	NONE_RETURN_VALUE	This value indicates that the handler did not return a value, or the result has been processed

方法概要

修饰符和类型	方法	说明
static HandlerExceptionHandler	find(cn.taketoday.context.ApplicationContext context)
static HandlerExceptionHandler	find(cn.taketoday.context.ApplicationContext context, boolean detectAllHandlerExceptionHandlers)
Object	handleException(RequestContext context, Throwable exception, Object handler)	Handle exception

字段详细资料

BEAN_NAME

static final String BEAN_NAME

Well-known name for the HandlerExceptionHandler object in the bean factory for this namespace. Only used when "detectAllHandlerExceptionHandlers" is turned off.

另请参阅:

• DispatcherHandler.setDetectAllHandlerExceptionHandlers(boolean)
• 常量字段值

NONE_RETURN_VALUE

static final Object NONE_RETURN_VALUE

This value indicates that the handler did not return a value, or the result has been processed

方法详细资料

handleException

@Nullable
Object handleException(RequestContext context,
 Throwable exception,
 @Nullable
 Object handler)
                throws Exception

Handle exception

参数:

exception - The exception occurred

handler - Current handler

返回:

a corresponding view result to write to, or null for default processing in the resolution chain

抛出:

Exception - error handle failed

find

static HandlerExceptionHandler find(cn.taketoday.context.ApplicationContext context)

find

static HandlerExceptionHandler find(cn.taketoday.context.ApplicationContext context,
 boolean detectAllHandlerExceptionHandlers)