Hello All I'm using felix white board plugin to register a filterEverything
works fine i.e. all HTTP requests pass through this filterBut I had an
exception when I tried to cast the parameter ServletRequest to
HttpServletRequestThe exception is the following:
ERROR:20150611_174037:::org.apache.felix.http.base.internal.dispatch.FilterPipeline$FilterRequestWrapper
cannot be cast to javax.servlet.http.HttpServletRequest
ERROR:20150611_174037:::{}, Exception thrown :java.lang.ClassCastException:
org.apache.felix.http.base.internal.dispatch.FilterPipeline$FilterRequestWrapper
cannot be cast to javax.servlet.http.HttpServletRequest
Here's my code
package fr.erdf.boitier.logicieldm.presentation.ws.filter;
package fr.erdf.boitier.logicieldm.presentation.ws.filter;
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 javax.servlet.http.HttpServletRequest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ServletFilter implements Filter {
private static final Logger LOGGER =
LoggerFactory.getLogger(ServletFilter.class);
public ServletFilter() {
System.out.println("ServletFilter.ServletFilter()");
}
@Override
public void init(FilterConfig filterConfig) throws ServletException {
}
@Override
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
System.out.println("ServletFilter.doFilter()");
//
try {
StringBuffer url = ((HttpServletRequest) request).getRequestURL();
if(url != null) {
System.out.println("URL:" + url.toString());
}
}catch(Throwable e) {
System.out.println(e.getMessage());
}
chain.doFilter(request, response);
}
@Override
public void destroy() {
}
}
I took a look at the javadoc and I can see that FilterRequestWrapper extends
HttpServletRequestWrapper that implements HttpServletRequest interface ....
Any idea ?
regards
