public void load_history()
{
ltData = new LtData(this);
gridList = new BindingList <LottoryItem>();
if (ltData.load_history() < 0)
{
MessageBox.Show("Load history data failed\n");
}
ltData.clone_history(gridList);
}
public static void get_new(object ltd)
{
LtData ltData = (LtData)ltd;
int tryTimes = 3;
int start = 2003001;
int stop = 2020999;
byte[] byteHead;
byte[] byteData;
if (ltData.ltSet.Count > 0)
{
start = ((LottoryItem)ltData.ltSet[ltData.ltSet.Count - 1]).id;
start += 1;
}
RETRY:
try
{
TcpClient tclient = new TcpClient();
tclient.Connect("42.121.193.75", 5000);
NetworkStream stream = tclient.GetStream();
ReqHisData req = new ReqHisData();
req.head.key = 0;
req.head.magic = IPAddress.HostToNetworkOrder((int)LtNet.LT_MAGIC);
req.head.job = IPAddress.HostToNetworkOrder((int)JobId.JOB_HISTORY);
req.head.len = IPAddress.HostToNetworkOrder(Marshal.SizeOf(req));
req.req.start = IPAddress.HostToNetworkOrder(start);
req.req.stop = IPAddress.HostToNetworkOrder(stop);
stream.Write(StructToBytes(req), 0, Marshal.SizeOf(req));
stream.Flush();
//读取头部
ResData res = new ResData();
int headSize = Marshal.SizeOf(res);
byteHead = new byte[headSize];
int count = stream.Read(byteHead, 0, headSize);
if (count < headSize)
{
stream.Close();
tclient.Close();
MessageBox.Show("更新数据失败：\n");
return;
}
res = (ResData)BytesToStruct(byteHead, res.GetType());
res.head.key = IPAddress.NetworkToHostOrder(res.head.key);
res.head.magic = IPAddress.NetworkToHostOrder(res.head.magic);
res.head.job = IPAddress.NetworkToHostOrder(res.head.job);
res.head.len = IPAddress.NetworkToHostOrder(res.head.len);
res.result = IPAddress.NetworkToHostOrder(res.result);
if (res.head.magic != LtNet.LT_MAGIC || res.head.job != (int)JobId.JOB_HISTORY || res.head.len < headSize)
{
stream.Close();
tclient.Close();
MessageBox.Show("更新数据失败：错误的响应\n");
return;
}
if (res.result != 0)
{
stream.Close();
tclient.Close();
MessageBox.Show("更新数据失败：服务器错误\n");
return;
}
if (res.head.len == headSize)
{
stream.Close();
tclient.Close();
return;
}
int dataLen = res.head.len - headSize;
byteData = new byte[dataLen];
int recvLen = 0;
while (recvLen < dataLen)
{
int recvCount = stream.Read(byteData, recvLen, dataLen - recvLen);
if (recvCount <= 0)
{
stream.Close();
tclient.Close();
MessageBox.Show("更新数据失败：\n");
return;
}
recvLen += recvCount;
}
}
catch (System.Exception ex)
{
tryTimes--;
if (tryTimes > 0)
{
goto RETRY;
}
//MessageBox.Show("更新数据失败：" + ex.Message);
return;
}
StreamWriter objWriter = new StreamWriter(DEFINE.HISTORY_FILE, true);
ASCIIEncoding encoding = new ASCIIEncoding();
string strLt = encoding.GetString(byteData);
int itemAdd = 0;
//objWriter.Write(strLt);
string[] items = strLt.Split('\n');
for (int i = 0; i < items.Length; i++)
{
if (items[i].Length < 10)
{
continue;
}
LottoryItem item = new LottoryItem();
if (string_to_item(items[i], item) == 0)
{
ltData.ltSet.Add(item);
//if (i < (items.Length - 1))
{
items[i] += "\n";
}
objWriter.Write(items[i]);
itemAdd++;
}
}
objWriter.Close();
if (itemAdd > 0)
{
Thread.Sleep(1000);
ltData.form.otherUpdateDatas();
}
}