C#反射调用拓展类方法实例代码

public class TestExtension
{
    public string Test1()
    {
        return "test";
    }
}

public static class MyExtension
{
    public static void Show(this TestExtension obj)
    {
        Debug.Log("ExtensionFunc:"+ obj.Test1());
    }
}

TestExtension ts = new TestExtension();
ts.Show();

//接收到服务器消息;反序列化后执行相应路由方法
public void DispatchProto(int protoId, byte[] bytes)
{
    if (!ProtoDic.ContainProtoId(protoId))
    {
        Logger.LogError($"Unkown ProtoId:{protoId}");
        return;
    }       
    Type protoType = ProtoDic.GetProtoTypeByProtoId(protoId);
    Logger.Log($"protoId:{protoId};--typeName:{protoType.FullName}");

    //打印传输获得的字节的utf-8编码
    PrintUTF8Code(bytes);

    Type tp = typeof(Google.Protobuf.MessageExtensions);
	
    //反射获取拓展类方法MergeFrom
	MethodInfo method = ReflectTool.GetExtentMethod(tp,"MergeFrom", protoType, typeof(byte[]));

    //反射创建实例，回调方法
    object obj = ReflectTool.CreateInstance(protoType);
    ReflectTool.MethodInvoke(method, obj, obj, bytes);

    sEvents.Enqueue(new KeyValuePair<Type, object>(protoType, obj));
}

//获取扩展方法
public static MethodInfo GetExtentMethod(Type extentType, string methodName, params Type[] funcParams)
{
    MethodInfo method = GetMethod(extentType, methodName, funcParams);
    return method;
}

public static object MethodInvoke(MethodInfo method, object obj, params object[] parameters)
{
    return method.Invoke(obj, parameters);
}

//通过Type创建实例,返回Object
public static object CreateInstance(Type refType, params object[] objInitial) 
{
    object res = System.Activator.CreateInstance(refType, objInitial);

    if (res == null)
    {
        Logger.LogError($"Reflect create Type:{refType.FullName} is null");
    }

    return res;
}

message BroadCast{
    int32 PID =1;
    int32 Tp = 2;
    string Content = 3;        
}

Pb.BroadCast bo = new Pb.BroadCast();
bo.PID = 1;
bo.Tp = 1;
bo.Content = "Perilla";
byte[] res = bo.ToByteArray();

//打印字节的utf-8编码
StringBuilder strBuilder = new StringBuilder();
for (int i = 0; i < res.Length; ++i)
{
    strBuilder.Append(res[i]);
    strBuilder.Append('-');
}

Logger.Log(strBuilder.ToString());
Pb.BroadCast bo2 = new Pb.BroadCast();
bo2.MergeFrom(res);
Logger.LogFormat("{0}=={1}=={2}", bo2.PID, bo2.Tp, bo2.Content);