關于OPENWRT路由數據接口respone.lua內命令的寫法

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-----------------------------------------------------------------------------
-- Openwrt與貝殼物聯平臺通訊示例
-- http://www.eqytg.org/help/5.html
-- Author: 貝殼物聯
-- Modify: hzl88688

-- Time: 2016/1/10
-----------------------------------------------------------------------------
local socket = require("socket")--引入Luasocket
local json = require("json")--引入Json4lua
local util = require "luci.util"--引入luci,調用cup負載
------------此處需修改-------------
DEVICEID = "xx" --設備ID
APIKEY = "xxxxxxxx" --設備APIKEY
INPUTID = "xx" --數據接口ID
-----------------------------------
host =  "www.eqytg.org"
port =  8181
lastTime = 0
lastUpdateTime = 0
if arg then
    host = arg[1] or host
    port = arg[2] or port
end
print("Attempting connection to host '" ..host.. "' and port " ..port.. "...")
c = assert(socket.connect(host, port))
c:settimeout(0)
print("Connected! Please type stuff (empty line to stop):")
while true do
    if ((os.time() - lastTime) > 40) then
        --print( os.time() )
        s = json.encode({M='checkin',ID=DEVICEID,K=APIKEY})
        assert(c:send( s.."\n" ))
        lastTime=os.time()
    end
    if ((os.time() - lastUpdateTime) > 10) then
        local sysinfo = luci.util.ubus("system", "info") or { }
        local load = sysinfo.load or { 0, 0, 0 } --獲取Openwrt系統負載
        local v = {[INPUTID]=load[1]} --多個接口數據可用v = {[INPUTID1]=load[1],[INPUTID2]=load[2]}
        local update = json.encode({['M']='update', ['ID']=DEVICEID, ['V']=v})
        assert(c:send( update.."\n" ))
        lastUpdateTime = os.time()
    end
    recvt, sendt, status = socket.select({c}, nil, 1)
    --#獲取table長度，即元素數
    while #recvt > 0 do
        local response, receive_status = c:receive()
        if receive_status ~= "closed" then
            if response then
                --print(response)
                r = json.decode(response)
                --table.foreach(r, print)
                if r.C then
                    if r.M == "say" then
-------------------------switch-case結構開始（要添加命令只需要復制一段函數改相應變量即可)-------------------
                             switch={}
                                  switch["name"]=function()   

                                                         luci.util.exec("xxxxxx")  ----------此個XXXXXX填入路由要執行的命令

                                                         s = json.encode({M='say',ID=r.ID,C=' 我的名字叫玲玲！'})
                                                        assert(c:send( s.."\n" ))
                                                         end
                                           switch["age"]=function()
                                                       luci.util.exec("xxxxxx")  ----------此個XXXXXX填入路由要執行的命令

                                                        s = json.encode({M='say',ID=r.ID,C=' 我剛出生喲！'})
                                                        assert(c:send( s.."\n" ))
                                                      end
                                           switch["play"]=function()
                                                 luci.util.exec("xxxxxx")  ----------此個XXXXXX填入路由要執行的命令
                                                               s = json.encode({M='say',ID=r.ID,C=' 你開啟了音樂播放,音樂現在播放中.......'})
                                                              assert(c:send( s.."\n" ))
                                                        end
                                           switch["help"]=function()
                                    s = json.encode({M='say',ID=r.ID,C=' 我叫玲玲，我是物聯網Openwrt示例，你可以嘗試輸入name、age或help，也可以查看實時數據，我隨時報告我的負荷情況,還可以遠程啟動音樂播放。'})
                                 assert(c:send( s.."\n" ))
                                                      end
                                      
--------------switch-case結構結束（要添加命令只需要復制一段函數改相應變量即可--------------       
                                            if ( switch[r.C]) then
                                                  switch[r.C]()
                                            else                
                  s = json.encode({M='say',ID=r.ID,C='朋友，你輸入的命令我讀不懂！你可以嘗試輸入name、age、play或help 。'})
                         assert(c:send( s.."\n" ))             
                                            end                                                                

                    end
                end
                recvt, sendt, status = socket.select({c}, nil, 1)
            end
        else
            break
        end
    end
end

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