--- sidebar_position: 2 title: 延时消息 description: zhub 的延时消息使用 --- :::tip 首先完成 **[连接创建](create-connection.md)** ,便可进行**延时消息**的发送和接收, - [订阅主题消息](#订阅主题消息) - [发送延时消息](#发送延时消息) ::: ## 订阅主题消息 > 见 [主题的订阅](publish-subscribe.md#订阅主题消息) ## 发送延时消息 > 参数说明:①主题名称 ②消息内容 ③延时多久,单位ms > zhub.delay("topic-delay-a", "delay-value", 1000); > 示例代码: ```java private ZHubClient zhub; @RestMapping(name = "delay_test", auth = false, comment = "发送延时主题消息测试") public String delayTest(String value) { zhub.delay("topic-delay-a", "delay-value", 1000); return "send ok!"; } ```