Youwanttocreateafilterforyourwebapplicationandyourfilterwillimplementjavax.servlet.Filter.Which twostatementsaretrue?()A.Yourfilterclassmustimplementaninitmethodandadestroymethod.B.Yourfilterclassmustalsoimplementjavax.servlet.FilterChain.C.Whenyourfilter
题目
Youwanttocreateafilterforyourwebapplicationandyourfilterwillimplementjavax.servlet.Filter.Which twostatementsaretrue?()
A.Yourfilterclassmustimplementaninitmethodandadestroymethod.
B.Yourfilterclassmustalsoimplementjavax.servlet.FilterChain.
C.Whenyourfilterchainstothenextfilter，itshouldpassthesameargumentsitreceivedinitsdoFiltermethod.
D.Themethodthatyourfilterinvokesontheobjectitreceivedthatimplementsjavax.servlet.FilterChaincaninvokeeitheranotherfilteroraservlet.
E.YourfilterclassmustimplementadoFiltermethodthattakes，amongotherthings，anHTTPServletRequestobjectandanHTTPServletResponseobject.
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参考答案和解析
参考答案：A, D