交互——获取货道信息

1.安卓向服务器请求广告数据

安卓mq实例向主题：server/v1 发送以下内容

{"code":" get_update_aisle", "sn":"123456" }

 2.服务器返回广告数据给安卓

服务器收到1的数据后，mq实例向主题：device/123abc 发送以下内容  

参数说明

no: 货道编号

price：单价，称重类型为"weight"时，为每斤的价格， 称重类型为"number"时，为每个的价格， 

oneWeight：标准重量/单位克，每件商品的重量（称重类型为"number"时 才会使用）

weightType：称重类型，weight：计重 ，number：计件

{
    "code":"get_update_ aisle",
    "data":{
        "aisles":[
            {
                "no":1,
                "price":"0.01",
                "image":"",
                "oneWeight":"200",
                "weightType":"weight"
            },
            {
                "no":2,
                "price":"0.01",
                "image":"",
                "oneWeight":"200",
                "weightType":"weight"
            },
            {
                "no":3,
                "price":"0.01",
                "image":"",
                "oneWeight":"200",
                "weightType":"weight"
            },
            {
                "no":4,
                "price":"0.01",
                "image":"",
                "oneWeight":"200",
                "weightType":"weight"
            },
            {
                "no":5,
                "price":"0.01",
                "image":"",
                "oneWeight":"200",
                "weightType":"weight"
            }
        ]
    }
}