使用unity做保存游戏，用了一下两个方法都报错
1、二进制保存游戏
2、json保存游戏
//二进制保存游戏方法
private void SaveByBin()
{
//序列化过程（将Save对象转换为字节流）
//创建Save对象并保存当前游戏状态
Save save = CreateSaveGO();
//创建一个二进制格式化程序
BinaryFormatter bf = new BinaryFormatter();
//创建一个文件流
FileStream fileStream = File.Create(Application.dataPath + "/StreamingFile" + "/byBin.txt");
//用二进制格式化程序的序列化方法来序列化Save对象,参数：创建的文件流和需要序列化的对象
bf.Serialize(fileStream, save);
//关闭流
fileStream.Close();
//如果文件存在，则显示保存成功
if (File.Exists(Application.dataPath + "/StreamingFile" + "/byBin.txt"))
{
UIManager._instance.ShowMessage("保存成功");
}
}
//二进制保存方法的报错内容
SerializationException: Type Save is not marked as Serializable.
System.Runtime.Serialization.Formatters.Binary.BinaryCommon.CheckSerializable (System.Type type, ISurrogateSelector selector, StreamingContext context) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/BinaryCommon.cs:119)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.GetObjectData (System.Object obj, System.Runtime.Serialization.Formatters.Binary.TypeMetadata& metadata, System.Object& data) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectWriter.cs:386)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObject (System.IO.BinaryWriter writer, Int64 id, System.Object obj) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectWriter.cs:306)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectInstance (System.IO.BinaryWriter writer, System.Object obj, Boolean isValueObject) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectWriter.cs:293)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteQueuedObjects (System.IO.BinaryWriter writer) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectWriter.cs:271)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteObjectGraph (System.IO.BinaryWriter writer, System.Object obj, System.Runtime.Remoting.Messaging.Header[] headers) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/ObjectWriter.cs:256)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize (System.IO.Stream serializationStream, System.Object graph, System.Runtime.Remoting.Messaging.Header[] headers) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/BinaryFormatter.cs:232)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize (System.IO.Stream serializationStream, System.Object graph) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Runtime.Serialization.Formatters.Binary/BinaryFormatter.cs:211)
GameManager.Savebybin () (at Assets/Scripts/GameManager.cs:119)
GameManager.SaveGame () (at Assets/Scripts/GameManager.cs:84)
UnityEngine.Events.InvokableCall.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:165)
UnityEngine.Events.UnityEvent.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:58)
UnityEngine.UI.Button.Press () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45)
UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.ExecuteIPointerClickHandler (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261)
UnityEngine.EventSystems.EventSystem:Update()
//json保存游戏方法
private void SaveByJson()
{
Save save = CreateSaveGO();
string filePath = Application.dataPath + "/StreamingFile" + "/byJson.json";
//利用JsonMapper将save对象转换为Json格式的字符串
string saveJsonStr = JsonMapper.ToJson(save);
//将这个字符串写入到文件中
//创建一个StreamWriter，并将字符串写入文件中
StreamWriter sw = new StreamWriter(filePath);
sw.Write(saveJsonStr);
//关闭StreamWriter
sw.Close();
UIManager._instance.ShowMessage("保存成功");
}
//json保存方法得报错内容
NullReferenceException
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:222)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoMethod.cs:232)
System.Reflection.MonoProperty.GetValue (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] index, System.Globalization.CultureInfo culture) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoProperty.cs:297)
System.Reflection.MonoProperty.GetValue (System.Object obj, System.Object[] index) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System.Reflection/MonoProperty.cs:283)
LitJson.JsonMapper.WriteValue (System.Object obj, LitJson.JsonWriter writer, Boolean writer_is_private, Int32 depth)
LitJson.JsonMapper.ToJson (System.Object obj)
GameManager.Savebyjosn () (at Assets/Scripts/GameManager.cs:156)
GameManager.SaveGame () (at Assets/Scripts/GameManager.cs:85)
UnityEngine.Events.InvokableCall.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:165)
UnityEngine.Events.UnityEvent.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:58)
UnityEngine.UI.Button.Press () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45)
UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.ExecuteIPointerClickHandler (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261)
UnityEngine.EventSystems.EventSystem:Update()
//需要序列化的类增加了[System.Serializable]还是会报错
[System.Serializable]
public class Save : MonoBehaviour
{
public List<int> liveTargetPosition = new List<int>();
public List<int> liveMonsterType = new List<int>();
public int shootNum;
public int score;
}
