Dubbo自定义Filter统一处理异常

@Activate(group = CommonConstants.PROVIDER)
public class NewFilter extends ListenableFilter {

    public NewFilter() {
        super.listener = new NewFilter.ExceptionListener();
    }

    public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {
        return invoker.invoke(invocation);
    }

    static class ExceptionListener implements Listener {

        public void onResponse(Result appResponse, Invoker<?> invoker, Invocation invocation)         {

            if (appResponse.hasException() && GenericService.class != invoker.getInterface()) {

                try {

                    Throwable exception = appResponse.getException();

                    if (exception instanceof RpcException) {
  
             ResultCustom response = ResultCustom.error(exception.getMessage());
                     appResponse.setValue(response);
                     appResponse.setException(null);

                     return;
                    }

                } catch (Throwable e) {
                    return;
                }
            }
        }
    }
}