ActionAfter 异常信息携带到请求端 about iogame HOT 2 CLOSED

public final class MyActionAfter implements ActionAfter {
    ... ... 省略部分代码

    @Override
    public void execute(final FlowContext flowContext) {
        ... ... 省略部分代码

        // 有错误就响应给调用方
        if (response.hasError()) {
            // 异常消息发送到请求端
            String msg = flowContext.option(FlowAttr.msgException);
            response.setValidatorMsg(msg);

            asyncCtx.sendResponse(response);
            return;
        }

        ... ... 省略部分代码
    }
}