/// <summary>
/// 把文件路径和MD5码 写入txt文件
/// </summary>
/// <param name="verifyFileOutPath">写入校验文件的路径</param>
/// <param name="fileLists">储存所有合法文件的相对路径集合</param>
private static void WriteVerifyFile(string verifyFileOutPath, List <string> fileLists)
{
using (FileStream fs = new FileStream(verifyFileOutPath, FileMode.CreateNew))
{
using (StreamWriter sw = new StreamWriter(fs))
{
for (int i = 0; i < fileLists.Count; i++)
{
string path = fileLists[i];
string md5 = Helps.GetMD5(path); //todo
path = path.Replace(Application.streamingAssetsPath + "/", "");
//做参数检查，写入文件前
//写入文件
sw.WriteLine(path + "|" + md5);
}
}
}
Debug.Log("CreatVerifyFile/WriteVerifyFile/ 用户操作成功");
AssetDatabase.Refresh();
}
/// <summary>
/// 检查更新
/// </summary>
/// <param name="serverURL"> 服务器下载URL </param>
/// <returns></returns>
IEnumerator CheckAndDownload(string serverURL)
{
//参数检查
if (string.IsNullOrEmpty(serverURL))
{
Debug.LogError("服务器路径错误");
yield break;
}
//1> 下载“校验文件”
string fileURL = _ServerURL + ABDefine.VeriyFilesName;
UnityWebRequest WebRequest = UnityWebRequest.Get(fileURL);
yield return(WebRequest.SendWebRequest());
if (WebRequest.error != null)
{
Debug.Log(WebRequest.error);
}
else
{
//创建存放目录
if (!Directory.Exists(_DownloadPath))
{
Directory.CreateDirectory(_DownloadPath);
}
//写入存放目录
File.WriteAllBytes(_DownloadPath + ABDefine.VeriyFilesName, WebRequest.downloadHandler.data);
string strServerFileText = WebRequest.downloadHandler.text;
string[] lines = strServerFileText.Split('\n'); //按行截取
for (int i = 0; i < lines.Length; i++)
{
//检查是否出现空行
if (string.IsNullOrEmpty(lines[i]))
{
continue;
}
string[] fileAndMd5 = lines[i].Split('|'); //按符号截取
string strServerFileName = fileAndMd5[0].Trim(); //服务器端的文件名（路径）
string serverMD5 = fileAndMd5[1].Trim(); //服务器端的MD5码
string strLocalFile = _DownloadPath + "/" + strServerFileName; //得到本地的这个文件
//2> 根据“校验文件”对比，哪些是变化的，哪些是新加的，整理到集合中
if (!File.Exists(strLocalFile))
{
//从服务器下载
string dir = Path.GetDirectoryName(strLocalFile);
if (!string.IsNullOrEmpty(dir))
{
Directory.CreateDirectory(dir);
}
//todo 通过www下载并写入本地
StartCoroutine(DownFile(serverURL + "/" + strServerFileName, strLocalFile));
}
else
{
//todo 进行MD5码比对
string localMd5 = Helps.GetMD5(strLocalFile);
if (!localMd5.Equals(serverMD5))
{
File.Delete(strLocalFile);
//todo 通过www下载并写入本地
StartCoroutine(DownFile(serverURL + "/" + strServerFileName, strLocalFile));
Debug.Log("更新了文件：" + strLocalFile);
}
}
//3> 根据整理出需要更新的文件，下载资源
}
Debug.Log("UpdateResourcesFileFromServer /CheckAndDownload/ 校验完成");
}
yield return(new WaitForEndOfFrame());
//向下广播更新完成，启动游戏的主逻辑
BroadcastMessage(ABDefine.ReceiveInfoStartRuning, SendMessageOptions.DontRequireReceiver);
} //CheckAndDownload_End
