Unity几个Json库的序列化简单比较

Unity几个Json库的序列化简单比较

粗略需求是对比Unity自带的JsonUtility、Newtonsoft、LitJson、SimpleJson这几个库在序列化统一对象时的时间消耗。

要序列化的对象类定义 [Serializable] public class ToSerializeObject { public int logtype; public long userid; public string platform; public string clientversion; public string message; public string title; } 比较代码 public class JsonTest : MonoBehaviour { private readonly StringBuilder _stringBuilder1 = new StringBuilder(); private readonly StringBuilder _stringBuilder2 = new StringBuilder(); private readonly StringBuilder _stringBuilder3 = new StringBuilder(); private readonly StringBuilder _stringBuilder4 = new StringBuilder(); private const int TestCount = 100000; private readonly Stopwatch _stopwatch = new Stopwatch(); // Start is called before the first frame update void Start() { ClearCache(); Debug.Log("Newtonsoft ============================"); _stopwatch.Start(); NewtonsoftJsonTest(); _stopwatch.Stop(); Debug.Log($"Json of Newtonsoft = {_stopwatch.ElapsedMilliseconds}"); Debug.Log("Unity ============================"); _stopwatch.Reset(); _stopwatch.Restart(); UnityJsonTest(); _stopwatch.Stop(); Debug.Log($"Json of Unity = {_stopwatch.ElapsedMilliseconds}"); Debug.Log("SimpleJson ============================"); _stopwatch.Reset(); _stopwatch.Restart(); SimpleJsonTest(); _stopwatch.Stop(); Debug.Log($"Json of SimpleJson = {_stopwatch.ElapsedMilliseconds}"); Debug.Log("LitJson ============================"); _stopwatch.Reset(); _stopwatch.Restart(); LitJsonTest(); _stopwatch.Stop(); Debug.Log($"Json of LitJson = {_stopwatch.ElapsedMilliseconds}"); } /// <summary> /// Newtonsoft的json序列化测试 /// </summary> private void NewtonsoftJsonTest() { Profiler.BeginSample("Newtonsoft"); for (var i = 0; i < TestCount; i++) { var obj = new ToSerializeObject() { clientversion = $"client{i + 1}", logtype = 1, message = $"message {i + 1}", platform = "android", title = $"title {i + 1}", userid = 1000 + i }; _stringBuilder1.Append(JsonConvert.SerializeObject(obj)); _stringBuilder1.Append("#@#"); } Profiler.EndSample(); Debug.Log($"message1 length = {_stringBuilder1.Length}, data = {_stringBuilder1.ToString()}"); } /// <summary> /// Unity自带json库的json序列化测试 /// </summary> private void UnityJsonTest() { Profiler.BeginSample("Unity"); for (var i = 0; i < TestCount; i++) { var obj = new ToSerializeObject() { clientversion = $"client{i + 1}", logtype = 1, message = $"message {i + 1}", platform = "android", title = $"title {i + 1}", userid = 1000 + i }; _stringBuilder2.Append(JsonUtility.ToJson(obj)); _stringBuilder2.Append("#@#"); } Profiler.EndSample(); Debug.Log($"message2 length = {_stringBuilder2.Length}, data = {_stringBuilder2.ToString()}"); } /// <summary> /// SimpleJson的json序列化测试 /// </summary> private void SimpleJsonTest() { Profiler.BeginSample("SimpleJSON"); var jsonClass = new JSONClass(); for (var i = 0; i < TestCount; i++) { var obj = new ToSerializeObject() { clientversion = $"client{i + 1}", logtype = 1, message = $"message {i + 1}", platform = "android", title = $"title {i + 1}", userid = 1000 + i }; jsonClass.Add("clientversion", new JSONData(obj.clientversion)); jsonClass.Add("logtype", new JSONData(obj.logtype)); jsonClass.Add("message", new JSONData(obj.message)); jsonClass.Add("platform", new JSONData(obj.platform)); jsonClass.Add("title", new JSONData(obj.title)); jsonClass.Add("userid", new JSONData(obj.userid)); _stringBuilder3.Append(jsonClass.ToString()); _stringBuilder3.Append("#@#"); } Profiler.EndSample(); Debug.Log($"message2 length = {_stringBuilder3.Length}, data = {_stringBuilder3.ToString()}"); } /// <summary> /// LitJson的json序列化测试 /// </summary> private void LitJsonTest() { Profiler.BeginSample("LitJson"); for (var i = 0; i < TestCount; i++) { var obj = new ToSerializeObject() { clientversion = $"client{i + 1}", logtype = 1, message = $"message {i + 1}", platform = "android", title = $"title {i + 1}", userid = 1000 + i }; _stringBuilder4.Append(JsonMapper.ToJson(obj)); _stringBuilder4.Append("#@#"); } Profiler.EndSample(); Debug.Log($"message2 length = {_stringBuilder4.Length}, data = {_stringBuilder4.ToString()}"); } private void ClearCache() { _stringBuilder1.Clear(); _stringBuilder2.Clear(); _stringBuilder3.Clear(); _stringBuilder4.Clear(); } 结果 序列化次数\时间（ms）NewtonsoftUnity自带库SimpleJsonLitJson100004112576243551000003411260691913468 GC等 特意也看了下GC的消耗，利用unity的Profile在执行10000次的情况下的消耗 这里只是略微的比较了在序列化自定义对象的时候几种库的表现，目前能看到的是unity自带的库表现的是最好的，当然，不排除有使用的不正确的情况导致的情况。这个数据只有在实际这么使用的时候，才具有价值，其他情况下只做参考。