Filter filtering emoji

Interception Device Public classEmojifilter implements Filter {PrivateFilterconfig Filterconfig;  Public voidInit (Filterconfig filterconfig) throws Servletexception {System. out. println ("Filter initialized");  This. Filterconfig =Filterconfig; }     Public voiddestroy () {System. out. println ("Filter destroyed");  This. Filterconfig =NULL; }     Public voidDoFilter (servletrequest request, servletresponse response, Filterchain chain) throws IOException, Servlete xception {chain.dofilter (NewMyrequestwrapper ((httpservletrequest) request), response); }}

Web. XML configuration <!--emoji Filter-    <filter>        <filter-name>emojifilter</filter-name >        <filter-class>com.qtkj.  Base. emojifilter</filter-class>        <init-param>            <param-name>encoding</param-name >            <param-value>utf-8</param-value>        </init-param>    </filter>    <filter-mapping>        <filter-name>EmojiFilter</filter-name>        <url-pattern> /* </url-pattern>    </filter-mapping>

1 Actual Filtration Method2  Public classMyrequestwrapper extends Httpservletrequestwrapper {3      PublicMyrequestwrapper (HttpServletRequest servletrequest) {4 super (ServletRequest);5     }6 7      Publicstring[] getparametervalues (String parameter) {8String[] results =super.getparametervalues (parameter);9         if(Results = =NULL)Ten             return NULL;  One  A         intCount =results.length; -string[] Trimresults =NewString[count]; -          for(inti =0; I < count; i++) {             theTrimresults[i] =Com.qtkj.weixin.utils.EmojiFilter.filterEmoji (Results[i].trim ()); -Trimresults[i]=trimresults[i].replace (" ",""); -         }         -System. out. println ("==========="+trimresults+"----------"); +         returnTrimresults; -     }            + } AThe method of combining emoji treatment method

Filter filtering emoji