求助!servletResponse中为什么会没有setCharacterEncoding方法？

显示全部楼层 · 2021-1-27 05:31:42

实现了javax.servlet下的Filter接口为什么会找不到这个方法呢

分 -->

千问 · 2021-1-27 05:31:42

千问 · 2021-1-27 05:31:42

有人吗

千问 · 2021-1-27 05:31:42

版本的问题吧

千问 · 2021-1-27 05:31:42

/**
*Setsthecharacterencoding(MIMEcharset)oftheresponse
*beingsenttotheclient,forexample,toUTF-8.
*Ifthecharacterencodinghasalreadybeensetby
*{@link#setContentType}or{@link#setLocale},
*thismethodoverridesit.
*Calling{@link#setContentType}withtheString
*oftext/htmlandcalling
*thismethodwiththeStringofUTF-8
*isequivalentwithcalling
*setContentTypewiththeStringof
*text/html;charset=UTF-8.
*Thismethodcanbecalledrepeatedlytochangethecharacter
*encoding.
*Thismethodhasnoeffectifitiscalledafter
*getWriterhasbeen
*calledoraftertheresponsehasbeencommitted.
*Containersmustcommunicatethecharacterencodingusedfor
*theservletresponse'swritertotheclientiftheprotocol
*providesawayfordoingso.InthecaseofHTTP,thecharacter
*encodingiscommunicatedaspartoftheContent-Type
*headerfortextmediatypes.Notethatthecharacterencoding
*cannotbecommunicatedviaHTTPheadersiftheservletdoesnot
*specifyacontenttype;however,itisstillusedtoencodetext
*writtenviatheservletresponse'swriter.
*
*@paramcharsetaStringspecifyingonlythecharacterset
*definedbyIANACharacterSets
*(http://www.iana.org/assignments/character-sets)
*
*@see#setContentType
*#setLocale
*
*@since2.4
*
*/
publicvoidsetCharacterEncoding(Stringcharset);

2.4以前的版本应该没有

千问 · 2021-1-27 05:31:42

强转为HTTPServletResponse