gistfile1.txt

public class JWTLoginFilter extends AbstractAuthenticationProcessingFilter {

	protected JWTLoginFilter(String url, AuthenticationManager authManager) {
		super(new AntPathRequestMatcher(url));
		setAuthenticationManager(authManager);
	}

	@Override
	public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response)
			throws AuthenticationException, IOException, ServletException {
		
		return getAuthenticationManager().authenticate(
				
				new UsernamePasswordAuthenticationToken(
						request.getParameter("username"), 
						request.getParameter("password"), 
						Collections.emptyList()
						)
				);
	}
	
	@Override
	protected void successfulAuthentication(
			HttpServletRequest request,
			HttpServletResponse response,
			FilterChain filterChain,
			Authentication auth) throws IOException, ServletException {
			response.setStatus(200);
		TokenAuthenticationService.addAuthentication(response, auth.getName());
	}

}