### Question:
SwitcherServer { public SwitcherService getSwitcherService() { return this.switcherService; } SwitcherServer();  SwitcherServer(Properties properties);  SwitcherServer(String filename); void close(); SwitcherService getSwitcherService();  }### Answer:
@Test public void testGetSwitcherService() throws IOException { SwitcherServer switcherServer = new SwitcherServer(); SwitcherService switcherService = switcherServer.getSwitcherService(); switcherService.register("key", Boolean.TRUE, "用于测试", QoS.API); if (switcherService.isOpen("key")) { System.out.println("key open status"); } else { System.out.println("key closed status"); } switcherService.set("key", Boolean.FALSE); switcherServer.close(); }