JwtFilter.java 文件源码

@Override
public void doFilter(final ServletRequest req, final ServletResponse res, final FilterChain chain)
    throws IOException, ServletException {
  final HttpServletRequest request = (HttpServletRequest) req;

  final String authHeader = request.getHeader("Authorization");
  if (authHeader == null || !authHeader.startsWith("Bearer ")) {
    ExceptionUtils.createUnauthorizedException("Missing or invalid Authorization header.", res);
    return;
  }

  try {
    final String token = authHeader.substring(7); // The part after "Bearer "
    final Claims claims =
        Jwts.parser().setSigningKey("secretkey").parseClaimsJws(token).getBody();
    request.setAttribute("claims", claims);
  } catch (final Exception e) {
    ExceptionUtils.createUnauthorizedException("Invalid token", res);
    return;
  }

  chain.doFilter(req, res);
}