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selfupdate.lua

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yourfilename = "yourfilename" --这里写你自己需要更新的远端服务器上的名字

file.open(yourfilename, "r")

local temp = file.readline()

updateflag = string.sub(temp,0,string.find(temp,"\r\n"))

temp = nil

file.close()

Server = "yourserver.name"

socket=net.createConnection(net.TCP, 0)

socket:dns(Server, function(conn,ip) if ip == nil then print("DNS Fail.") node.restart() end end)

--开始连接服务器

socket:connect(80, Server)

socket:on("connection", function(sck)

print("connect to:"..Server)

toget()

end)

function toget()

--HTTP请求头定义

local rupdateflag = ""

socket:send("GET /"..yourfilename.." HTTP/1.1\r\n" ..

"Host: "..Server.."\r\n" ..

"Accept: */*" ..

"User-Agent: Nodemcu CHIPID:"..node.chipid().."\r\n\r\n")

end

socket:on("receive", function(sck, response)

local rupdateflag=string.sub(response,0,string.find(response,"\r\n"))

if updateflag ~= rupdateflag then

file.remove("temp.lua")

file.open("temp.lua", "a+")

file.writeline(response)

file.close()

file.remove(yourfilename)

file.rename("temp.lua",yourfilename)

file.remove("init.lua")

file.open("init.lua", "a+")

file.writeline("node.compile(yourfilename)")

file.writeline("dofile("..string.sub(yourfilename,0,string.find(".lua")-1..".lc)")

file.close()

node.restart()

else

end

end)

-- 在自己程序里开始部分写入

-- file.remove("init.lua")

-- file.open("init.lua", "a+")

-- file.writeline("dofile(update.lua)")

-- file.close()

-- node.restart()