zuul服务过滤

 1 @Component
 2 public class MyFilter extends ZuulFilter {
 3 
 4     private static Logger log = LoggerFactory.getLogger(MyFilter.class);
 5     @Override
 6     public String filterType() {
 7         return "pre";
 8     }
 9 
10     @Override
11     public int filterOrder() {
12         return 0;
13     }
14 
15     @Override
16     public boolean shouldFilter() {
17         return true;
18     }
19 
20     @Override
21     public Object run() {
22         RequestContext ctx = RequestContext.getCurrentContext();
23         HttpServletRequest request = ctx.getRequest();
24         log.info(String.format("%s >>> %s", request.getMethod(), request.getRequestURL().toString()));
25         Object accessToken = request.getParameter("token");
26         if(accessToken == null) {
27             log.warn("token is empty");
28             ctx.setSendZuulResponse(false);
29             ctx.setResponseStatusCode(401);
30             try {
31                 ctx.getResponse().getWriter().write("token is empty");
32             }catch (Exception e){}
33 
34             return null;
35         }
36         log.info("ok");
37         return null;
38     }
39 }