実装するとしたらこんな感じかな?(動作確認してません。ごめんなさい) import java.io.*; import javax.servlet.*; import javax.servlet.http.*; public class RequestCheckFilter implements Filter { public void init(FilterConfig conf) throws ServletException {} public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws ServletException, IOException { // 正規表現パターンを生成 Pattern p = Pattern.compile("(^|\W)[cC]
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