Attribute "URIEncoding="UTF-8"" should be inserted in the tag <connector> in the %Tomcat root folder%\conf\server.xml.
 
For example, there is the description of the http connector from my local installation.
 
   <Connector URIEncoding="UTF-8" port="8080" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" />