apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/controller/PermissionController.java/PermissionController/hasCreateApplicationPermission
class PermissionController:  @GetMapping("/system/role/createApplication/{userId}")
  public JsonObject hasCreateApplicationPermission(@PathVariable String userId) {
    JsonObject rs = new JsonObject();
    rs.addProperty("hasCreateApplicationPermission", permissionValidator.hasCreateApplicationPermission(userId));
    return rs;
  }