目前Unity3D依然是移动手机开发的主流开发工具。
而在移动端推荐的打包解包方法是使用Protobuf协议：主要优点就是效率高，传输量小，节省带宽。而想要在Android和IOS端都能使用Protobuf，我使用的方法是把Protobuf-net源代码拷贝到项目中的Scripts文件夹中，而当拷贝到文件夹时会出现如下错误。（文章结尾附有源代码）
我们只需要在Assets目录下创建smcs.rsp文件，并在文件中写入-unsafe，重新编译，即可发现错误消失。
这样前期配置工作就完成了，下面就是简单的编码部分。
1、首先创建一个cs文件，命名为Person.cs，具体源码如下
[ProtoContract] public class Person { [ProtoMember(1)] public int Id { get; set; } [ProtoMember(2)] public string Name { get; set; } [ProtoMember(3)] public Address Address { set; get; } public override string ToString() { return "Id = " + Id + " " + "Name = " + Name + " " + "Address = " + Address; } } [ProtoContract] public class Address { [ProtoMember(1)] public string Line1 { get; set; } [ProtoMember(2)] public string Line2 { get; set; } public override string ToString() { return "Line1 = " + Line1 + " " + "Line2 = " + Line2; } } 2、在项目中创建一个Test.cs文件，并挂载到Main Camera上 public class Test : MonoBehaviour { List<Person> persons = new List<Person>(); void Start() { Person p1 = new Person() { Address = new Address() {Line1 = "one line address", Line2 = "two line address"}, Id = 1, Name = "肖明" }; Person p2 = new Person() {Address = new Address() {Line1 = "one line", Line2 = "two line"}, Id = 1, Name = "肖红"}; persons.Add(p1); persons.Add(p2); using (var file = File.Create("test.bin"))//把对象序列化到文件中 { Serializer.Serialize(file,persons); } } void OnGUI() { if (GUILayout.Button("反序列化")) { Deserialize(); } } void Deserialize() { List<Person> personList =new List<Person>(); using (var file = File.OpenRead("test.bin")) { personList = Serializer.Deserialize<List<Person>>(file); } foreach (var person in personList) { Debug.Log(person); } } } 3、运行程序，你会发现在你的项目根目录中有一个test.bin文件，里面就存放的是我们被序列化的对象4、点击场景中的反序列化Button，，会看到输出了如下字符串
5、我简单写了一个protobuf工具类，主要提供把对象序列化到文件或者内存中去，和把文件或者内存中的数据反序列化出来，下面是主要源代码
public class ProtobufHelper { /// <summary> /// 把对象序列化到内存中 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="t"></param> /// <returns></returns> public static string Serialize<T>(T t) { using (MemoryStream ms = new MemoryStream()) { Serializer.Serialize(ms, t); return Encoding.UTF8.GetString(ms.ToArray()); } } /// <summary> /// 把对象序列化到文件中 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="path"></param> /// <param name="t"></param> public static void Serialize<T>(string path, T t) { using (var file = File.Create(path)) { Serializer.Serialize(file,t); } } /// <summary> /// 把对象从内存中反序列化回来 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="content"></param> /// <returns></returns> public static T Deserialize<T>(string content) { using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(content))) { T t = Serializer.Deserialize<T>(ms); return t; } } /// <summary> /// 把对象从文件中反序列化回来 /// </summary> /// <typeparam name="T"></typeparam> /// <param name="s"></param> /// <returns></returns> public static T Deserialize<T>(Stream s) { return Serializer.Deserialize<T>(s); } } 6、下面是这个类的简单实用方法（把数据序列化到内存中，并把对象从内存中反序列化回来），在Test.cs修改代码如下 public class Test : MonoBehaviour { List<Person> persons = new List<Person>(); string strResult = String.Empty; void Start() { Person p1 = new Person() { Address = new Address() {Line1 = "one line address", Line2 = "two line address"}, Id = 1, Name = "肖明" }; Person p2 = new Person() {Address = new Address() {Line1 = "one line", Line2 = "two line"}, Id = 1, Name = "肖红"}; persons.Add(p1); persons.Add(p2); strResult = ProtobufHelper.Serialize(persons);//序列化到内存中 } void OnGUI() { if (GUILayout.Button("反序列化")) { Deserialize(); } } void Deserialize() { List<Person> personList =new List<Person>(); personList = ProtobufHelper.Deserialize<List<Person>>(strResult);从内存中反序列化出来 foreach (var person in personList) { Debug.Log(person); } } } 7、下面是把数据序列化到文件中，并把对象从文件中反序列化回来，在Test.cs修改代码如下 public class Test : MonoBehaviour { List<Person> persons = new List<Person>(); private string path; void Start() { path = Application.streamingAssetsPath + "/test.bin"; Person p1 = new Person() { Address = new Address() {Line1 = "one line address", Line2 = "two line address"}, Id = 1, Name = "肖明" }; Person p2 = new Person() {Address = new Address() {Line1 = "one line", Line2 = "two line"}, Id = 1, Name = "肖红"}; persons.Add(p1); persons.Add(p2); ProtobufHelper.Serialize<List<Person>>(path,persons);//把对象序列化到文件中 } void OnGUI() { if (GUILayout.Button("反序列化")) { Deserialize(); } } void Deserialize() { List<Person> personList =new List<Person>(); using (var file = File.OpenRead(path))//从文件中读取 { personList = ProtobufHelper.Deserialize<List<Person>>(file); } foreach (var person in personList) { Debug.Log(person); } } } 8.这就是一个简单的Protobuf序列化与反序列化介绍，我附上protobuf-net源代码供大家下载链接：http://pan.baidu.com/s/1kUBZDYZ 密码：4b01
