private boolean enabled = true;   //是否可用
  private boolean corsEnabled = true;  //是否跨域
  private String mapping = "/graphql"; //GraphQL 前端访问网址，可以通过**配置宽域
  private boolean exceptionHandlersEnabled = false;
  private long subscriptionTimeout = 0;
  private ContextSetting contextSetting = ContextSetting.PER_QUERY_WITH_INSTRUMENTATION;
  private long asyncTimeout = 30000;
  private String tracingEnabled = "false";
  private boolean actuatorMetrics;
  private Integer maxQueryComplexity;
  private Integer maxQueryDepth;

private String schemaLocationPattern = "**/*.graphqls";
  /**
   * Enable or disable the introspection query. Disabling it puts your server in contravention of
   * the GraphQL specification and expectations of most clients, so use this option with caution
   */
  private boolean introspectionEnabled = true;
  private boolean useDefaultObjectmapper = true;