//protected void parsePath()
//{
// string[] pathSplit = { "?" };
// string[] pathList = m_path.Split(pathSplit, StringSplitOptions.RemoveEmptyEntries);
// m_path = pathList[0];
// if (pathList.Length > 1)
// {
// string[] equalSplit = { "=" };
// string[] equalList = pathList[1].Split(equalSplit, StringSplitOptions.RemoveEmptyEntries);
// m_version = equalList[1];
// }
//}
override public void load()
{
//parsePath();
base.load();
if (ResLoadType.eStreamingAssets == m_resLoadType)
{
loadFromStreamingAssets();
}
else if (ResLoadType.ePersistentData == m_resLoadType)
{
loadFromPersistentData();
}
else if (ResLoadType.eLoadWeb == m_resLoadType)
{
//Ctx.m_instance.m_coroutineMgr.StartCoroutine(downloadAsset());
//Ctx.m_instance.m_coroutineMgr.StartCoroutine(coroutWebDown());
m_localPath = Path.Combine(Ctx.m_instance.m_localFileSys.getLocalWriteDir(), UtilLogic.getRelPath(m_path));
if (!string.IsNullOrEmpty(m_version))
{
m_localPath = UtilLogic.combineVerPath(m_localPath, m_version);
}
Ctx.m_instance.m_logSys.log(string.Format("添加下载任务 {0}", m_path));
Ctx.m_instance.m_TaskQueue.push(this);
}
}
// 线程下载
public void runTask()
{
Ctx.m_instance.m_logSys.log(string.Format("线程开始下载下载任务 {0}", m_path));
string saveFile = Path.Combine(Ctx.m_instance.m_localFileSys.getLocalWriteDir(), UtilLogic.getRelPath(m_path));
string origFile = saveFile; // 没有版本号的文件名字，如果本地没有这个文件，需要先建立这个文件，等下载完成后，然后再改名字，保证下载的文件除了网络传输因素外，肯定正确
bool bNeedReName = false;
if (!string.IsNullOrEmpty(m_version))
{
saveFile = UtilLogic.combineVerPath(saveFile, m_version);
}
try
{
//打开网络连接
string webPath;
if (!string.IsNullOrEmpty(m_version))
{
webPath = string.Format("{0}?v={1}", m_path, m_version);
}
else
{
webPath = m_path;
}
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(webPath);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
request.KeepAlive = false;
request.Proxy = null;
request.Timeout = 5000;
ServicePointManager.DefaultConnectionLimit = 50;
// GetRequestStream 总是出错，因此只能使用 GET 方式
//StreamWriter requestWriter = null;
//Stream webStream = request.GetRequestStream();
//requestWriter = new StreamWriter(webStream);
//try
//{
// string postString = string.Format("v={0}", m_version);
// requestWriter.Write(postString);
//}
//catch (Exception ex2)
//{
// Ctx.m_instance.m_logSys.asynclog("error");
//}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
long contentLength = response.ContentLength;
long readedLength = 0;
long lStartPos = 0;
FileStream fileStream = null;
if (File.Exists(saveFile))
{
fileStream = File.OpenWrite(saveFile);
lStartPos = fileStream.Length;
if (contentLength - lStartPos <= 0) // 文件已经完成
{
fileStream.Close();
onRunTaskEnd();
Ctx.m_instance.m_logSys.log("之前文件已经下载完成，不用重新下载");
return;
}
fileStream.Seek(lStartPos, SeekOrigin.Current); //移动文件流中的当前指针
}
else
{
bNeedReName = true;
try
{
fileStream = new FileStream(origFile, System.IO.FileMode.Create);
}
catch (Exception /*ex2*/)
{
Ctx.m_instance.m_logSys.error(string.Format("{0} 文件创建失败", saveFile));
}
}
if (lStartPos > 0)
{
request.AddRange((int)lStartPos); //设置Range值
contentLength -= lStartPos;
}
//向服务器请求，获得服务器回应数据流
System.IO.Stream retStream = response.GetResponseStream();
int len = 1024 * 8;
m_bytes = new byte[len];
int nReadSize = 0;
string logStr;
bool isBytesValid = true; // m_bytes 中数据是否有效
while (readedLength != contentLength)
{
nReadSize = retStream.Read(m_bytes, 0, len);
fileStream.Write(m_bytes, 0, nReadSize);
readedLength += nReadSize;
//logStr = "已下载:" + fs.Length / 1024 + "kb /" + contentLength / 1024 + "kb";
logStr = string.Format("文件 {0} 已下载: {1} b / {2} b", m_path, fileStream.Length, contentLength);
Ctx.m_instance.m_logSys.log(logStr);
if (isBytesValid)
{
if (readedLength != contentLength)
{
isBytesValid = false;
}
}
}
// 释放资源
request.Abort();
request = null;
response.Close();
response = null;
retStream.Close();
fileStream.Close();
// 修改文件名字
if (bNeedReName)
{
UtilApi.renameFile(origFile, saveFile);
}
if (!isBytesValid)
{
m_bytes = null;
}
if (readedLength == contentLength)
{
m_isRunSuccess = true;
}
else
{
m_isRunSuccess = false;
}
onRunTaskEnd();
}
catch (Exception /*err*/)
{
m_isRunSuccess = false;
onRunTaskEnd();
}
}