nodemcu写入HTML,在Nodemcu Esp8266 lua编程中使用client:send()发送整个html代码

其他海报提供了很多很好的信息，但我认为即使在非正式的常见问题解答中，也没有给出这个问题的特定解决方案。

要发送大型静态文件，您可以使用回调从闪存中加载它们并以块的形式发送它们。正如其他人所提到的，一次通话可以发送多少是有限的。单个回调中的多个发送调用可能无法按预期处理，并且可能占用太多内存。这是一个以块的形式加载和发送文件的简短示例：

local idx = 0 --keep track of where we are in the file

local fname = "index.html"

function nextChunk(c) --open file, read a chunk, and send it!

file.open(fname)

file.seek("set", idx)

local str = file.read(500)

if not str then return end --no more to send.

c:send(str)

idx = idx + 500

file.close() --close the file to let other callbacks use the filesystem

end

client:on("sent", nextChunk) --every time we send a chunk, start the next one!

nextChunk(client) --send the first chunk.或者，使用协同程序和计时器，我们可以使它更灵活：

local ready = true --represents whether we are ready to send again

client:on("sent", function() ready=true end) --we are ready after sending the previous chunk is finished.

local function sendFile(fname)

local idx=0 --keep track of where we are in the file

while true do

file.open(fname)

file.seek("set", idx)

local str = file.read(500)

if not str then return end --no more to send.

c:send(str)

ready=false --we have sent something. we are no longer ready.

idx = idx + 500

file.close() --close the file to let other callbacks use the filesystem

coroutine.yield() --give up control to the caller

end

end

local sendThread = coroutine.create(sendFile)

tmr.alarm(0, 100, 1, function() --make a repeating alarm that will send the file chunk-by-chunk

if ready then coroutine.resume(sendThread, "index.html") end

if coroutine.status(sendThread) == "dead" then tmr.stop(0) end --stop when we are done

end)