エラータイミング：eclipseのTomcat開始時
原因：filter.EncodingFileter が所定の場所に見つからない
対策：filter.jarダウンロードし、Tomcatのlibに配置
http://techfun.cc/javaserverside/windows-javaserverside-tomcat.html

【エラー内容】
～前半省略～
情報: サービス Catalina を起動します [金 9 04 17:30:56 JST 2015]
情報: Starting Servlet Engine: Apache Tomcat/8.0.24 [金 9 04 17:30:56 JST 2015]
情報: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. [金 9 04 17:30:56 JST 2015]
重大: フィルタfilterClass の起動中の例外です [金 9 04 17:30:57 JST 2015]
重大: One or more Filters failed to start. Full details will be found in the appropriate container log file [金 9 04 17:30:57 JST 2015]
重大: 以前のエラーのためにコンテキストの起動が失敗しました [] [金 9 04 17:30:57 JST 2015]
警告: Name = postgres Property maxActive is not used in DBCP2, use maxTotal instead. maxTotal default value is 8. You have set value of "30" for "maxActive" property, which is being ignored. [金 9 04 17:30:57 JST 2015]
警告: Name = postgres Property maxWait is not used in DBCP2 , use maxWaitMillis instead. maxWaitMillis default value is -1. You have set value of "108000000" for "maxWait" property, which is being ignored. [金 9 04 17:30:57 JST 2015]
情報: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. [金 9 04 17:30:57 JST 2015]
情報: Starting ProtocolHandler ["http-nio-8080"] [金 9 04 17:30:57 JST 2015]
情報: Starting ProtocolHandler ["ajp-nio-8009"] [金 9 04 17:30:57 JST 2015]
情報: Server startup in 1436 ms [金 9 04 17:30:57 JST 2015]