大约有 540 项符合查询结果(耗时:0.0320秒) [XML]

https://bbs.tsingfun.com/thread-1813-1-1.html 

mqtt 接收的信息为json格式 怎么将json 信息解析出来显示在指定的文本上 ...

需要解析的JSON 格式 接收的信息,通过JSON解析后 把WD 的参数24 解读出来 显示到文本上 代码如下: 注意:此代码块是右键导出的png,具有还原代码块的功能,无需手动一个个处理。 具体还原方法请参考:https:...
https://bbs.tsingfun.com/thread-2128-1-1.html 

MQTT订阅一次收不到事件触发,多次订阅可以? - 用户反馈 - 清泛IT社区,为...

用户反馈,连接状态正常,在初始化中订阅一次,收不到数据事件触发。 每次点击订阅一次,就能收到。这个需要深入测试一下。
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Does Android support near real time push notification?

... I recently started playing with MQTT http://mqtt.org for Android as a way of doing what you're asking for (i.e. not SMS but data driven, almost immediate message delivery, scalable, not polling, etc.) I have a blog post with background information on this ...
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Push Notifications in Android Platform

...pport near real time push notification? ) I recently started playing with MQTT http://mqtt.org for Android as a way of doing this sort of thing (i.e. push notification that is not SMS but data driven, almost immediate message delivery, not polling, etc.) I have a blog post with background informat...
https://stackoverflow.com/ques... 

What ports does RabbitMQ use?

...s without and with TLS (only if the STOMP plugin is enabled) 1883, 8883: (MQTT clients without and with TLS, if the MQTT plugin is enabled 15674: STOMP-over-WebSockets clients (only if the Web STOMP plugin is enabled) 15675: MQTT-over-WebSockets clients (only if the Web MQTT plugin is enabled) R...
https://bbs.tsingfun.com/thread-1555-1-1.html 

App Inventor 2 如何开发掌控版做互联网通讯App? - App Inventor 2 中文网...

...这个是需要再安装插件还是怎么弄? 答复: [hide]使用MQTT拓展,下载地址:https://www.fun123.cn/reference/components/connectivity.html#Mqtt 参考IoT专题的最后一篇文章:https://blog.csdn.net/INT_TANG/article/details/128210609 [/hide]
https://bbs.tsingfun.com/thread-1625-1-1.html 

阿里云物联网平台开通及基础用法 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...添加产品和创建设备完成后,可以在设备的详情页中获得MQTT协议所需的三元组,点击MQTT连接参数后的查看即可获得。 部分截图来自:https://blog.csdn.net/HDUGEEK/article/details/129673434
https://bbs.tsingfun.com/thread-1969-1-1.html 

- App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...消息体大小的限制,文档中没有描述这个限制,但是每个MQTT平台应该是有限制的,经过实际测试befa.com平台,base64文本大小约100KB以内的消息订阅可以正常接收,超过则无法接收。建议你自己的平台也进行一下测试,如果有限制...
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How does facebook, gmail send the real time notification?

... Facebook uses MQTT instead of HTTP. Push is better than polling. Through HTTP we need to poll the server continuously but via MQTT server pushes the message to clients. Comparision between MQTT and HTTP: http://www.youtube.com/watch?v=-K...
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JMS and AMQP - RabbitMQ

...API. For ex: Apache ActiveMQ can use any of the following protocols: AMQP, MQTT, OpenWire, REST(HTTP), RSS and Atom, Stomp, WSIF, WS Notification, XMPP. I suggest you read Using JMS Transport as the Connection Protocol. Good Luck :) ...