apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/controller/PermissionController.java/PermissionController/isManageAppMasterPermissionEnabled
class PermissionController:    @GetMapping("/system/role/manageAppMaster")
    public JsonObject isManageAppMasterPermissionEnabled() {
      JsonObject rs = new JsonObject();
      rs.addProperty("isManageAppMasterPermissionEnabled", systemRoleManagerService.isManageAppMasterPermissionEnabled());
      return rs;
    }