LitJson报错记录

1.float转double报错

报错类型：

Max allowed object depth reached while trying to export from type System.Collections.Generic.List

序列化时候会遇到float和double互转问题；

注意这里double转float会导致精度丢失；

解决办法：

JsonMapper.cs中添加几行代码；

2.Dictionary中key为int时报错

报错类型：

InvalidCastException: Specified cast is not valid

原方法中Dictionary的key只支持（string）强转，int强转为string失败，会报错；

解决办法：

JsonMapper.cs中WriteValue方法修改

3.Dictionary中key为enum时报错

LitJson的字典不支持Key为枚举；

序列化不会出错，反序列化会报错，无法读取枚举类型；

解决办法：

修改JsonMapper.cs中ReadValue方法：

原本reader.Value被强转为string，无法识别出枚举；

下面将reader.Value转为Object；

4.Unity中LitJson类型扩展

添加向量Vector2、Vector3、Vector4；

添加四元素Quaternion、Color、Color32；

添加Bounds、Rect、RectOffset；

项目中加入UnityTypeBridge.cs类和JsonExtension.cs类；

代码：

public static class UnityTypeBindings {     static bool registerd;     static UnityTypeBindings()     {         Register();     }     public static void Register()     {         if (registerd) return;         registerd = true;         // 注册Type类型的Exporter         JsonMapper.RegisterExporter<Type>((v, w) => { w.Write(v.Ful         JsonMapper.RegisterImporter<string, Type>((s) => { return T         // 注册Vector2类型的Exporter         Action<Vector2, JsonWriter> writeVector2 = (v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("x", v.x);             w.WriteProperty("y", v.y);             w.WriteObjectEnd();         };         JsonMapper.RegisterExporter<Vector2>((v, w) => { writeVecto         // 注册Vector3类型的Exporter         Action<Vector3, JsonWriter> writeVector3 = (v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("x", v.x);             w.WriteProperty("y", v.y);             w.WriteProperty("z", v.z);             w.WriteObjectEnd();         };         JsonMapper.RegisterExporter<Vector3>((v, w) => { writeVecto         // 注册Vector4类型的Exporter         JsonMapper.RegisterExporter<Vector4>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("x", v.x);             w.WriteProperty("y", v.y);             w.WriteProperty("z", v.z);             w.WriteProperty("w", v.w);             w.WriteObjectEnd();         });         // 注册Quaternion类型的Exporter         JsonMapper.RegisterExporter<Quaternion>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("x", v.x);             w.WriteProperty("y", v.y);             w.WriteProperty("z", v.z);             w.WriteProperty("w", v.w);             w.WriteObjectEnd();         });         // 注册Color类型的Exporter         JsonMapper.RegisterExporter<Color>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("r", v.r);             w.WriteProperty("g", v.g);             w.WriteProperty("b", v.b);             w.WriteProperty("a", v.a);             w.WriteObjectEnd();         });         // 注册Color32类型的Exporter         JsonMapper.RegisterExporter<Color32>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("r", v.r);             w.WriteProperty("g", v.g);             w.WriteProperty("b", v.b);             w.WriteProperty("a", v.a);             w.WriteObjectEnd();         });         // 注册Bounds类型的Exporter         JsonMapper.RegisterExporter<Bounds>((v, w) =>         {             w.WriteObjectStart();             w.WritePropertyName("center");             writeVector3(v.center, w);             w.WritePropertyName("size");             writeVector3(v.size, w);             w.WriteObjectEnd();         });         // 注册Rect类型的Exporter         JsonMapper.RegisterExporter<Rect>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("x", v.x);             w.WriteProperty("y", v.y);             w.WriteProperty("width", v.width);             w.WriteProperty("height", v.height);             w.WriteObjectEnd();         });         // 注册RectOffset类型的Exporter         JsonMapper.RegisterExporter<RectOffset>((v, w) =>         {             w.WriteObjectStart();             w.WriteProperty("top", v.top);             w.WriteProperty("left", v.left);             w.WriteProperty("bottom", v.bottom);             w.WriteProperty("right", v.right);             w.WriteObjectEnd();         });                       } } 

public static class JsonExtensions {     public static void WriteProperty(this JsonWriter w, string name, long value)     {         w.WritePropertyName(name);         w.Write(value);     }     public static void WriteProperty(this JsonWriter w, string name, string value)     {         w.WritePropertyName(name);         w.Write(value);     }     public static void WriteProperty(this JsonWriter w, string name, bool value)     {         w.WritePropertyName(name);         w.Write(value);     }     public static void WriteProperty(this JsonWriter w, string name, double value)     {         w.WritePropertyName(name);         w.Write(value);     }          public static void WriteProperty(this JsonWriter w, string name, float value)     {         w.WritePropertyName(name);         w.Write(value);     } }