Hi,
There is known problem with form parameters encoding and servlets. When you
have utf-8 HTML page with forms, you get back the parameters in utf-8, but
the servlet doesn't know, that the page was rendered in utf-8 and interprets
the parameters in different encoding (don't know exactly which one). You can
fix the problem with servlet filter show bellow (code is from Tomcat I
suppose). I think that Wicket should include the filter in its distribution.
What do you think?
Jan
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class SetCharacterEncodingFilter implements Filter {
private static Log log =
LogFactory.getLog(SetCharacterEncodingFilter.class);
protected String encoding = null;
protected FilterConfig filterConfig = null;
protected boolean ignore = true;
public void destroy() {
this.encoding = null;
this.filterConfig = null;
}
public void doFilter(
ServletRequest request,
ServletResponse response,
FilterChain chain) throws IOException, ServletException {
log.info("doFilter, encoding called ...");
if (false == ignore) {
if (null != encoding) {
request.setCharacterEncoding(encoding);
log.info("doFilter, new encoding setuped.");
}
}
chain.doFilter(request, response);
}
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (null == value) {
this.ignore = true;
} else if (value.equalsIgnoreCase("true")) {
this.ignore = true;
} else if (value.equalsIgnoreCase("yes")) {
this.ignore = true;
} else {
this.ignore = false;
}
}
}
<filter>
<filter-name>setCharacterEncoding</filter-name>
<display-name>Set character encoding</display-name>
<description>
<![CDATA[This filter force character encoding of retrieved parameters.]]>
</description>
<filter-class>
SetCharacterEncodingFilter
</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>ignore</param-name>
<param-value>false</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>setCharacterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
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