Cocos2d-3.x_在Lua中使用cjson库解析json

来源：互联网发布：淘宝店名可以山寨吗编辑：程序博客网时间：2024/04/29 09:07

<pre name="code" class="cpp">bool AppDelegate::applicationDidFinishLaunching(){auto engine = LuaEngine::getInstance();//注册cjsonLuaStack* stack = engine->getLuaStack();luaopen_lua_extensions_cjson(stack->getLuaState());std::vector<std::string> searchPaths;//执行Lua    ScriptEngineManager::getInstance()->setScriptEngine(engine);    if (engine->executeScriptFile("Main.lua")) {        return false;    }    return true;}

<pre name="code" class="cpp">解析Jsonlocal cjson = require "cjson"local sampleJson = [[{"age":"23","testArray":{"array":[8,9,11,14,25]},"Himi":"himigame.com"}]];--解析json字符串local data = cjson.decode(sampleJson);--打印json字符串中的age字段print(data["age"]);--打印数组中的第一个值(lua默认是从0开始计数)print(data["testArray"]["array"][1]);

编码Jsonlocal cjson = require "cjson"local retTable = {};    --最终产生json的表--顺序数值local intDatas = {};intDatas[1] = 100;intDatas[2] = "100";--数组local aryDatas = {};aryDatas[1] = {};aryDatas[1]["键11"] = "值11";aryDatas[1]["键12"] = "值12";aryDatas[2] = {};aryDatas[2]["键21"] = "值21";aryDatas[2]["键22"] = "值22";--对Table赋值retTable["键1"] = "值1";retTable[2] = 123;retTable["int_datas"] = intDatas;retTable["aryDatas"] = aryDatas;--将表数据编码成json字符串local jsonStr = cjson.encode(retTable);print(jsonStr);--结果是:{"int_datas":[100,"100"],"2":123,"键1":"值1","aryDatas":[{"键12":"值12","键11":"值11"},{"键21":"值21","键22":"值22"}]}

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