Tomcat UTF-8 CharsetMapper

Just a quickie I thought I'd share, if you're running into encoding problems using Tomcat and JSTL's fmt:xxx tags, you might want to implement your own Tomcat CharsetMapper. The following example will fix things for UTF-8 encoding:

public class UTF8CharsetMapper extends CharsetMapper {
    public UTF8CharsetMapper() {
        super();
    }

    public UTF8CharsetMapper(String name) {
        super(name);
    }

    public String getCharset(Locale locale) {
        return "UTF-8";
    }
}

You should then edit your Tomcat's server.xml file by mapping your Context's charsetMapperClass attribute to your custom made CharsetMapper:

<Context charsetMapperClass="your.package.here.UTF8CharsetMapper" otherParam="xxx">
    ...
</Context>