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function stopReconnect()
-- clear connecting state and clear connect timer!
mqtt_connecting = 0
tmr.stop(3)
end
-- 重连方法
function reconnect()
if mqtt_connecting == 0 then
tmr.alarm(3, 20000, 1, function()
print("start mqtt server reconnect!")
mq:close()
mq:connect("x.x.x.x", 1883, 0)
end)
mqtt_connecting = 1
end
end
-- 初始化mqtt连接方法
function init()
print("init mqtt")
mqtt_inited = 1
-- 初始化无需登陆的客户端, 心跳时间 120秒
mq = mqtt.Client("recv_earth1", 120)
--mq:lwt("/lwt", "offline", 0, 0)
-- 设置连接ip 以及 端口
-- 对于 TLS: m:connect("192.168.11.118", secure-port, 1)
mq:connect("192.168.1.1", 1883, 0,
function(client)
print("connected")
end,
function(client, reason)
print("failed reason: " .. reason)
reconnect()
end
)
--连接到服务器触发事件
mq:on("connect", function(client)
print("connected")
stopReconnect()
mq:subscribe("tai3_water",0, function(conn) print("subscribe success") end)
--mq:subscribe("rpt_temp",0, function(conn) print("subscribe success") end)
end)
mq:on("offline", function(client)
print ("offline")
reconnect()
end) --掉线触发事件
-- 收到消息时触发事件
mq:on("message", function(client, topic, data)
print(topic .. ":" )
if data ~= nil then
if topic == "tai3_water" then
print(data)
if data == "water1min" then
dofile("water.lua")
--mq:publish("report_info","tai3_water1",0,0)
elseif data == "water2min" then
dofile("water2.lua")
--mq:publish("report_info","tai3_water2",0,0)
elseif data == "water4min" then
dofile("water4.lua")
--mq:publish("report_info","tai3_water4",0,0)
end
end
--if topic == "rpt_water" and tonumber(data) > 12 then
--print("aaa"..data)
--end
end
end)
end
--function do_get_adc() -- 定义定时器处理函数
--mq:publish("rpt_water", adc.read(0), 0, 0)
--end
--tmr.create():alarm(60000, tmr.ALARM_AUTO , do_get_adc)
-- 确保subscribe/publish方法在连接上服务器后再调用，在实际应用中是把他们放在connect回调函数里或者确定连接成功
-- 订阅/topic主题、服务质量为0
--m:subscribe("topicxx",0, function(conn) print("subscribe success") end)
--m:subscribe("blinkdr",0, function(conn) print("subscribe success") end)
-- 发送一条信息 data = hello, QoS = 0, retain = 0
--m:close();
-- 你可以再次调用 m:connect 连接函数
-- 如果没有初始化过，进行初始化
if mqtt_inited == 0 then
init()
else
reconnect()
end
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