@RequestMapping( value = "/updateBrokerConfig.do", method = {RequestMethod.GET, RequestMethod.POST}) public String updateBrokerConfig( ModelMap map, HttpServletRequest request, @RequestParam(required = false) String brokerAddr, @RequestParam(required = false) String clusterName, @RequestParam(required = false) String key, @RequestParam(required = false) String value) { Collection<Option> options = brokerService.getOptionsForUpdateBrokerConfig(); putPublicAttribute(map, "updateBrokerConfig", options, request); try { if (request.getMethod().equals(GET)) { } else if (request.getMethod().equals(POST)) { checkOptions(options); brokerService.updateBrokerConfig(brokerAddr, clusterName, key, value); putAlertTrue(map); } else { throwUnknowRequestMethodException(request); } } catch (Throwable t) { putAlertMsg(t, map); } return TEMPLATE; }