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import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
@WebServlet(urlPatterns = "/")
public class app extends HttpServlet
{
@WebFilter(urlPatterns = "")
public static class filter implements Filter
{
@Override
public void init(FilterConfig filterConfig)
{
}
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException
{
response.getOutputStream().println("Extra Info");
response.setCharacterEncoding("utf-8");
((HttpServletResponse) response).addHeader("X-Filter-Before", "1");
chain.doFilter(request, response);
((HttpServletResponse) response).setHeader("X-Filter-After", "1");
}
@Override
public void destroy()
{
}
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException
{
response.getOutputStream().println("This is servlet response");
response.setHeader("X-Filter-After", "0");
}
}
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