private void button4_Click(object sender, EventArgs e)
{
if (textBox1.Text == "")
{
return;
}
DBControllerSet.DistanceDBController disclr = new DBControllerSet.DistanceDBController();
int sum_db = Convert.ToInt32(Math.Sqrt(disclr.Getsum()));
int sum_target = Convert.ToInt32(textBox1.Text);
int toupdate = ((sum_target * (sum_target - 1)) / 2) - ((sum_db * (sum_db - 1)) / 2);
SetTextBox("数据库中记录： " + sum_db + "\r\n");
SetTextBox("需要更新条数： " + toupdate + "\r\n");
GC.Collect();
return;
}
private void button2_Click(object sender, EventArgs e)
{
Control.CheckForIllegalCrossThreadCalls = false;
textBox1.ReadOnly = false;
button6.Enabled = false;
button1.Enabled = false;
button2.Enabled = button2.Visible = false;
button3.Enabled = button3.Visible = true;
DBControllerSet.DistanceDBController distanceclr = new DBControllerSet.DistanceDBController();
richTextBox1.Text = "";
citys = null;
eq = 0;
DistanceArray = null;
countdown = null;
DataBase_city = null;
passthrough = true;
posarr = null;
GC.Collect();
Control.CheckForIllegalCrossThreadCalls = false;
Temp = new Thread(() =>
{
try
{
int snum = 0;
int sum_db = Convert.ToInt32(Math.Sqrt(distanceclr.Getsum()));
Control.CheckForIllegalCrossThreadCalls = false;
SetTextBox("正在试图连接地图更新服务器......\r\n");
ThreadPool.SetMinThreads(20, 20);
ThreadPool.SetMaxThreads(60, 60);
countdown = new MutipleThreadResetEvent(1);
object obj = countdown;
ThreadPool.QueueUserWorkItem(new WaitCallback(Pingtest), obj);
countdown.WaitAll();
if (!pingtestpass)
{
button2.Enabled = button2.Visible = false;
button3.Enabled = button3.Visible = false;
button1.Enabled = true;
return;
}
citys = inputline.Split(' ');
SetTextBox("准备更新坐标......\r\n");
SetProgressBar(3);
DataBase_city = inputline_backup.Split(' ');
posarr = new pos[DataBase_city.Length];
if (textBox1.Text == "")
{
eq = citys.Length;
}
else
{
eq = Convert.ToInt32(textBox1.Text);
}
countdown = new MutipleThreadResetEvent(eq);
for (int i = 0; i < eq; i++)
{
object[] objectArray = new object[2];
objectArray[0] = i;
objectArray[1] = countdown;
object param = (object)objectArray;
ThreadPool.QueueUserWorkItem(new WaitCallback(Update_Position), param);
}
SetTextBox("开始更新坐标......\r\n");
countdown.WaitAll();
SetTextBox("坐标更新完毕......\r\n");
SetProgressBar(10);
SetTextBox("准备更新距离数据......\r\n");
SetTextBox("共有" + eq + "个地区需要更新......\r\n");
SetTextBox("正在提取数据库，请稍候......\r\n");
DistanceArray = new int[eq, eq];
DistanceArray.Initialize();
DataTable table = new DataTable();
distanceclr.GetTableAll(ref table);
int toupdate = ((eq * (eq - 1)) / 2) - ((sum_db * (sum_db - 1)) / 2);
SetTextBox("数据库提取完毕......\r\n");
SetTextBox("正在整理数据库，请稍候......\r\n");
int st, sp;
while (snum < table.Rows.Count)
{
st = Array.IndexOf(DataBase_city, table.Rows[snum][0]);
sp = Array.IndexOf(DataBase_city, table.Rows[snum][1]);
DistanceArray[st, sp] = DistanceArray[sp, st] = Convert.ToInt32(table.Rows[snum][2]);
snum++;
}
SetProgressBar(20);
SetTextBox("数据库整理完毕......\r\n");
SetTextBox("共需要从网络更新" + toupdate + "条数据......\r\n");
if (toupdate <= 0 || eq <= sum_db)
{
goto LISPO;
}
countdown = new MutipleThreadResetEvent(toupdate);
for (int i = sum_db; i < eq; i++)
{
DistanceArray[i, i] = 1;
SetProgressBar(20 + ((i * 20) / eq));
for (int j = 0; j < i; j++)
{
object[] objectArray = new object[3];
objectArray[0] = i;
objectArray[1] = j;
objectArray[2] = countdown;
object param = (object)objectArray;
ThreadPool.QueueUserWorkItem(new WaitCallback(Update_Distance), param);
}
}
SetTextBox("开始更新坐标和距离数据......\r\n");
countdown.WaitAll();
for (int i = 0; i < eq; i++)
{
DistanceArray[i, i] = 1;
}
SetTextBox("坐标和距离数据更新完成\r\n");
SetProgressBar(40);
while (!passthrough)
{
SetTextBox("开始重新校验距离数据.....\r\n");
List <int> x = new List <int>();
List <int> y = new List <int>();
int ssr = 0;
passthrough = true;
for (int i = 0; i < eq; i++)
{
for (int j = 0; j < i; j++)
{
if (DistanceArray[i, j] == 0 || DistanceArray[j, i] == 0)
{
x.Add(i); y.Add(j); ssr++;
}
}
}
SetTextBox("有" + ssr + "条数据获取失败或出错.....\r\n");
countdown = new MutipleThreadResetEvent(ssr);
for (int j = 0; j < ssr; j++)
{
object[] objectArray = new object[3];
objectArray[0] = x[j];
objectArray[1] = y[j];
objectArray[2] = countdown;
object param = (object)objectArray;
ThreadPool.QueueUserWorkItem(new WaitCallback(Update_Distance), param);
}
countdown.WaitAll();
}
citys = null;
SetTextBox("坐标和距离数据校验成功\r\n");
SetProgressBar(50);
SetTextBox("构造本地数据库.....\r\n");
DataTable newtable = table.Clone();
newtable.Clear();
DataRow dataRow = table.NewRow();
for (int i = 0; i < eq; i++)
{
dataRow[0] = DataBase_city[i];
dataRow[1] = DataBase_city[i];
dataRow[2] = DistanceArray[i, i];
lock (newtable){ newtable.Rows.Add(dataRow.ItemArray); }
for (int j = 0; j < i; j++)
{
dataRow[0] = DataBase_city[i];
dataRow[1] = DataBase_city[j];
dataRow[2] = DistanceArray[i, j];
lock (newtable) { newtable.Rows.Add(dataRow.ItemArray); }
dataRow[0] = DataBase_city[j];
dataRow[1] = DataBase_city[i];
dataRow[2] = DistanceArray[j, i];
lock (newtable) { newtable.Rows.Add(dataRow.ItemArray); }
}
}
SetTextBox("构造本地数据库完成\r\n");
SetTextBox("开始更新本地数据库.....\r\n");
distanceclr.Clear();
distanceclr.WriteTable(newtable);
SetTextBox("已写入数据库！\r\n");
LISPO:
SetProgressBar(100);
SetTextBox("数据更新完成\r\n");
button6.Enabled = button6.Visible = true;
button3.Enabled = false;
try
{
countdown = null;
DistanceArray = null;
}
catch (Exception err)
{
if (err.Message != "正在中止线程。")
{
MessageBox.Show(err.StackTrace + "\r\n" + err.Message, "close");
}
}
button2.Enabled = button2.Visible = true;
button3.Enabled = button3.Visible = false;
button1.Enabled = true;
GC.Collect();
return;
}
catch (Exception err)
{
if (err.Message != "正在中止线程。")
{
MessageBox.Show(err.StackTrace + "\r\n" + err.Message, "click");
}
}
});
Temp.IsBackground = true;
Temp.Start();
}
