@RequestMapping("/server")
    public ResponseEntity server() {
        ObjectNode result = JacksonUtils.createEmptyJsonNode();
        result.put("msg", "Hello! I am Nacos-Naming and healthy! total services: " + MetricsMonitor.getDomCountMonitor()
                + ", local port:" + EnvUtil.getPort());
        return ResponseEntity.ok(result);
    }
@Test
    void testServer() {
        ResponseEntity responseEntity = healthController.server();
        assertEquals(200, responseEntity.getStatusCodeValue());
    }