private void initWebSocketService() {
   final NodeServer self = this;
   final ResourceFactory regFactory = application.getResourceFactory();
   resourceFactory.register(
       (ResourceFactory rf,
           final Object src,
           final String resourceName,
           Field field,
           Object attachment) -> { // 主要用于单点的服务
         try {
           if (field.getAnnotation(Resource.class) == null) return;
           if (!(src instanceof WebSocketServlet)) return;
           synchronized (regFactory) {
             Service nodeService = (Service) rf.find(resourceName, WebSocketNode.class);
             if (nodeService == null) {
               nodeService =
                   Sncp.createLocalService(
                       resourceName,
                       getExecutor(),
                       application.getResourceFactory(),
                       WebSocketNodeService.class,
                       (InetSocketAddress) null,
                       (Transport) null,
                       (Collection<Transport>) null);
               regFactory.register(resourceName, WebSocketNode.class, nodeService);
               resourceFactory.inject(nodeService, self);
               logger.fine(
                   "[" + Thread.currentThread().getName() + "] Load Service " + nodeService);
             }
             field.set(src, nodeService);
           }
         } catch (Exception e) {
           logger.log(Level.SEVERE, "WebSocketNode inject error", e);
         }
       },
       WebSocketNode.class);
 }
 protected void loadHttpServlet(final AnyValue conf, final ClassFilter<? extends Servlet> filter)
     throws Exception {
   final StringBuilder sb = logger.isLoggable(Level.INFO) ? new StringBuilder() : null;
   final String prefix = conf == null ? "" : conf.getValue("path", "");
   final String threadName = "[" + Thread.currentThread().getName() + "] ";
   List<FilterEntry<? extends Servlet>> list = new ArrayList(filter.getFilterEntrys());
   list.sort(
       (FilterEntry<? extends Servlet> o1,
           FilterEntry<? extends Servlet>
               o2) -> { // 必须保证WebSocketServlet优先加载, 因为要确保其他的HttpServlet可以注入本地模式的WebSocketNode
         boolean ws1 = WebSocketServlet.class.isAssignableFrom(o1.getType());
         boolean ws2 = WebSocketServlet.class.isAssignableFrom(o2.getType());
         if (ws1 == ws2) return o1.getType().getName().compareTo(o2.getType().getName());
         return ws1 ? -1 : 1;
       });
   final List<AbstractMap.SimpleEntry<String, String[]>> ss =
       sb == null ? null : new ArrayList<>();
   for (FilterEntry<? extends Servlet> en : list) {
     Class<HttpServlet> clazz = (Class<HttpServlet>) en.getType();
     if (Modifier.isAbstract(clazz.getModifiers())) continue;
     WebServlet ws = clazz.getAnnotation(WebServlet.class);
     if (ws == null || ws.value().length == 0) continue;
     final HttpServlet servlet = clazz.newInstance();
     resourceFactory.inject(servlet, this);
     final String[] mappings = ws.value();
     String pref = ws.repair() ? prefix : "";
     DefaultAnyValue servletConf = (DefaultAnyValue) en.getProperty();
     WebInitParam[] webparams = ws.initParams();
     if (webparams.length > 0) {
       if (servletConf == null) servletConf = new DefaultAnyValue();
       for (WebInitParam webparam : webparams) {
         servletConf.addValue(webparam.name(), webparam.value());
       }
     }
     this.httpServer.addHttpServlet(servlet, pref, servletConf, mappings);
     if (ss != null) {
       for (int i = 0; i < mappings.length; i++) {
         mappings[i] = pref + mappings[i];
       }
       ss.add(new AbstractMap.SimpleEntry<>(clazz.getName(), mappings));
     }
   }
   if (ss != null) {
     Collections.sort(
         ss,
         (AbstractMap.SimpleEntry<String, String[]> o1,
             AbstractMap.SimpleEntry<String, String[]> o2) -> o1.getKey().compareTo(o2.getKey()));
     int max = 0;
     for (AbstractMap.SimpleEntry<String, String[]> as : ss) {
       if (as.getKey().length() > max) max = as.getKey().length();
     }
     for (AbstractMap.SimpleEntry<String, String[]> as : ss) {
       sb.append(threadName).append(" Loaded ").append(as.getKey());
       for (int i = 0; i < max - as.getKey().length(); i++) {
         sb.append(' ');
       }
       sb.append("  mapping to  ").append(Arrays.toString(as.getValue())).append(LINE_SEPARATOR);
     }
   }
   if (sb != null && sb.length() > 0) logger.log(Level.INFO, sb.toString());
 }