LUA解析json小demo

{
"configs": [{
"server": "JP3.ISS.TF",
"server_port": 443,
"password": "58603228",
"method": "aes-256-cfb",
"remarks": ""
},
{
"server": "US1.ISS.TF",
"server_port": 443,
"password": "37382928",
"method": "aes-256-cfb",
"remarks": ""
},
{
"server": "HK2.ISS.TF",
"server_port": 8989,
"password": "59434206",
"method": "aes-256-cfb",
"remarks": ""
}],
"strategy": null,
"index": 0,
"global": false,
"enabled": true,
"shareOverLan": false,
"isDefault": false,
"localPort": 1080,
"pacUrl": null,
"useOnlinePac": false,
"availabilityStatistics": false
}

function FileRead()
local file = io.open("gui-config.json", "r");
local json = file:read("*a");
file:close();
return json;
end

function FileWrite()
local file = io.open("gui-config.json", "w");
file:close();
end

local cjson = require("cjson");
local file = FileRead();
local json = cjson.decode(file);
for i, w in ipairs(json.configs) do
print("server: " .. w.password)
print("server_port: " .. w.server_port)
print("password: " .. w.password)
print("method: " .. w.method .. '\n')
end