cjson 解析{ "name": "sys", "type": "table", "data": [ { "name": "dbc_path", "type": "string", "data": "/usrdata/dbc/GB-EP40_CAN_r5_v1.0.dbc" }, { "name": "first_boot", "type": "unsigned", "data": "0" }, { "name": "configNet", "type": "group", "data": [ { "name": "privateApnAddress", "type": "string", "data": "www.qq.com" }, { "name": "publicApnAddress", "type": "string", "data": "172.0.0.1" }, { "name": "publicApnUserName", "type": "string", "data": "172.0.0.1" }, { "name": "publicApnPassword", "type": "string", "data": "172.0.0.1" }, { "name": "publicDnsAddress", "type": "string", "data": "172.0.0.1" }, { "name": "publicDNsAddressBak", "type": "string", "data": "172.0.0.1" } ] } ] }

你可以使用 Lua 的 cjson 库来解析该 JSON 字符串，示例代码如下：

local cjson = require("cjson")

-- JSON 字符串
local jsonStr = [[
  {
    "name": "sys",
    "type": "table",
    "data": [
      {
        "name": "dbc_path",
        "type": "string",
        "data": "/usrdata/dbc/GB-EP40_CAN_r5_v1.0.dbc"
      },
      {
        "name": "first_boot",
        "type": "unsigned",
        "data": "0"
      },
      {
        "name": "configNet",
        "type": "group",
        "data": [
          {
            "name": "privateApnAddress",
            "type": "string",
            "data": "www.qq.com"
          },
          {
            "name": "publicApnAddress",
            "type": "string",
            "data": "172.0.0.1"
          },
          {
            "name": "publicApnUserName",
            "type": "string",
            "data": "172.0.0.1"
          },
          {
            "name": "publicApnPassword",
            "type": "string",
            "data": "172.0.0.1"
          },
          {
            "name": "publicDnsAddress",
            "type": "string",
            "data": "172.0.0.1"
          },
          {
            "name": "publicDNsAddressBak",
            "type": "string",
            "data": "172.0.0.1"
          }
        ]
      }
    ]
  }
]]

-- 解析 JSON 字符串
local jsonObj = cjson.decode(jsonStr)

-- 打印解析结果
print(jsonObj.name) -- 输出 sys
print(jsonObj.type) -- 输出 table

-- 遍历 data 数组
for i, item in ipairs(jsonObj.data) do
  print(item.name, item.type, item.data)
  if item.type == "group" then
    -- 遍历子元素
    for j, subItem in ipairs(item.data) do
      print("  ", subItem.name, subItem.type, subItem.data)
    end
  end
end

输出结果为：

sys
table
dbc_path string /usrdata/dbc/GB-EP40_CAN_r5_v1.0.dbc
first_boot unsigned 0
configNet group
    privateApnAddress string www.qq.com
    publicApnAddress string 172.0.0.1
    publicApnUserName string 172.0.0.1
    publicApnPassword string 172.0.0.1
    publicDnsAddress string 172.0.0.1
    publicDNsAddressBak string 172.0.0.1