unity热更新加载Ab包资源

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using XLua;
using System.IO;
using UnityEngine.Networking;

public class HotFixScript : MonoBehaviour {

    private LuaEnv luaEnv;

    public static Dictionary prefabDict = new Dictionary();

    private void Awake()
    {
        luaEnv = new LuaEnv();
        luaEnv.AddLoader(MyLoader);
        luaEnv.DoString("require'fish'");
    }

    // Use this for initialization
    void Start () {
     
	}
	
	// Update is called once per frame
	void Update () {
		
	}


    private byte[] MyLoader(ref string filePath)
    {
        string absPath = @"C:\Users\Administrator\Desktop\XluaProjects\PlayerGamePackage\"+filePath+".lua.txt";
        return System.Text.Encoding.UTF8.GetBytes(File.ReadAllText(absPath));
    }

    private void OnDisable()
    {
        luaEnv.DoString("require'fishDispose'");   
    }

    private void OnDestroy()
    {
        luaEnv.Dispose();
    }

    [LuaCallCSharp]
    public void LoadResource(string resName,string filePath)
    {
        StartCoroutine(LoadResourceCorotine(resName,filePath));
        
    }

    IEnumerator LoadResourceCorotine(string resName,string filePath)
    {
        UnityWebRequest request=UnityWebRequest.GetAssetBundle(@"http://localhost/AssetBundles/" + filePath);
        yield return request.SendWebRequest();
        AssetBundle ab = (request.downloadHandler as DownloadHandlerAssetBundle).assetBundle;
        GameObject gameObject = ab.LoadAsset(resName);
        prefabDict.Add(resName, gameObject);
    }

    [LuaCallCSharp]
    public static GameObject GetGameObject(string goName)
    {
        return prefabDict[goName];
    }
}