终端设备用的是ESP8266
运行固件为NodeMCU，即嵌入式Lua环境
服务端基于PHP。简单的获取后保存上传的数据
演示代码：
服务端
<html>
<head>
<head>
<title>数据收集器</title>
<meta charset="utf-8">
</head>
</head>
<body>
<?php
$user_name = isset($_GET['name'])?$_GET['name']:null;
$user_pwd = isset($_GET['pwd'])?$_GET['pwd']:null;
$message = array(
"type" => 0,
"data" => "name:".$user_name." pwd:".$user_pwd
);
echo json_encode($message);
?>
<?php
$file=fopen("test.csv","a+");
fwrite($file, $_GET["name"]);
fwrite($file, ",");
fwrite($file, $_GET["pwd"]);
fwrite($file, ",");
fwrite($file, "\n");
?>
</body>
</html>
第二个PHP段是保存这两个变量传送来的数据，写入到一个CSV文件里去。
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终端两个代码文件，一个是初始化联网用的init.lua，一个是test.lua
--init.lua
print("set up wifi mode")
wifi.setmode(wifi.STATION)
sta_cfg={}
sta_cfg.ssid="360WiFi-SJB"
sta_cfg.pwd="shejibu123"
wifi.sta.config(sta_cfg)
wifi.sta.connect()
print("IP unavaiable, Waiting...")
tmr.alarm(1, 1000, 1, function()
if wifi.sta.getip()~= nil then
tmr.stop(1)
print("Config done, IP is "..wifi.sta.getip())
dofile("test.lua")
end
end)
终端我设定的是定时提交一组数据
tmr.alarm(1, 10000, 1, function()
http.get("http://192.168.1.229:8088/test.php?name=Hello&pwd=World", nil, function(code, data)
if (code < 0) then
print("HTTP request failed")
else
print(code,data)
end
end)
print("----------------------------------------------\n")
end)
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