private async void MainForm_Load(object sender, EventArgs e)
{
#region 进度提示窗口设置
ProgressForm progressForm = new ProgressForm();
progressForm.Size = new Size(600, 80);
progressForm.StartPosition = FormStartPosition.Manual;
progressForm.Location = new Point(this.DesktopLocation.X + this.Width / 2 - progressForm.Size.Width / 2, this.DesktopLocation.Y + this.Height / 2 - progressForm.Size.Height / 2);
progressForm.FormBorderStyle = FormBorderStyle.FixedToolWindow;
progressForm.progress.Maximum = 100;
progressForm.progress.Minimum = 0;
progressForm.progress.Value = 0;
progressForm.Show(this);
this.Enabled = false;
#endregion
using (StreamReader reader = new StreamReader("TitleUrl.txt"))
{
while (!reader.EndOfStream)
{
string title = await reader.ReadLineAsync();
string url = await reader.ReadLineAsync();
try
{
titleURL.Add(title, url);
}
catch (Exception)
{
// 异常:
// T:System.ArgumentNullException:
// key 为 null。
//
// T:System.ArgumentException:
// System.Collections.Generic.Dictionary`2 中已存在具有相同键的元素。
}
//更新进度条
if (progressForm.progress.Value < 90)
{
progressForm.progress.Value++;
progressForm.Text = "正在加载离线数据：" + progressForm.progress.Value + "%";
}
}
}
progressForm.progress.Value = 100;
progressForm.Text = "任务进度：" + progressForm.progress.Value + "%";
progressForm.Close();
this.Enabled = true;
}
private async void btnLoad_Click(object sender, EventArgs e)
{
if (btnStart.Enabled == false || btnStop.Enabled == true)
{
MessageBox.Show("请先停止抓取！");
return;
}
#region 进度提示窗口设置
ProgressForm progressForm = new ProgressForm();
progressForm.Size = new Size(600, 80);
progressForm.StartPosition = FormStartPosition.Manual;
progressForm.Location = new Point(this.DesktopLocation.X + this.Width / 2 - progressForm.Size.Width / 2, this.DesktopLocation.Y + this.Height / 2 - progressForm.Size.Height / 2);
progressForm.FormBorderStyle = FormBorderStyle.FixedToolWindow;
progressForm.progress.Maximum = 100;
progressForm.progress.Minimum = 0;
progressForm.progress.Value = 0;
progressForm.Show(this);
this.Enabled = false;
#endregion
//先清空原来的数据
dataGridViewTitleURL.Rows.Clear();
using (StreamReader reader = new StreamReader("TitleUrl.txt"))
{
while (!reader.EndOfStream)
{
string title = await reader.ReadLineAsync();
string url = await reader.ReadLineAsync();
dataGridViewTitleURL.Rows.Add(title, url);
dataGridViewTitleURL.Rows[dataGridViewTitleURL.Rows.Count - 2].HeaderCell.Value = (dataGridViewTitleURL.Rows.Count - 1).ToString();
//更新进度条
if (progressForm.progress.Value < 50)
{
progressForm.progress.Value++;
progressForm.Text = "任务进度：" + progressForm.progress.Value + "%";
}
}
}
urls.Clear();
urlsToBrowse.Clear();
int numOfTitles = dataGridViewTitleURL.Rows.Count-1;
using (StreamReader reader = new StreamReader("Urls.txt"))
{
while (!reader.EndOfStream)
{
string url = await reader.ReadLineAsync();
urls.Add(url);
numOfTitles--;
if (numOfTitles < 0)
{
urlsToBrowse.Enqueue(url);
}
//更新进度条
if (progressForm.progress.Value < 90)
{
progressForm.progress.Value = progressForm.progress.Value + 1;
progressForm.Text = "任务进度：" + progressForm.progress.Value + "%";
}
}
}
if (dataGridViewTitleURL.Rows.Count > 1)
{
string temp = dataGridViewTitleURL.Rows[0].Cells[1].Value.ToString();
txtWebSite.Text = "http://" + temp.Split(new string[] { "/" }, StringSplitOptions.RemoveEmptyEntries)[1];
websiteCopy = txtWebSite.Text;
}
progressForm.Close();
MessageBox.Show("载入数据完成！");
this.Enabled = true;
}
private async void btnSave_Click(object sender, EventArgs e)
{
if (btnStart.Enabled == false || btnStop.Enabled == true)
{
MessageBox.Show("请先停止抓取！");
return;
}
#region 进度提示窗口设置
ProgressForm progressForm = new ProgressForm();
progressForm.Size = new Size(600, 80);
progressForm.StartPosition = FormStartPosition.Manual;
progressForm.Location = new Point(this.DesktopLocation.X + this.Width / 2 - progressForm.Size.Width / 2, this.DesktopLocation.Y + this.Height / 2 - progressForm.Size.Height / 2);
progressForm.FormBorderStyle = FormBorderStyle.FixedToolWindow;
progressForm.progress.Maximum = 100;
progressForm.progress.Minimum = 0;
progressForm.progress.Value = 0;
progressForm.Show(this);
this.Enabled = false;
#endregion
using (StreamWriter writer = new StreamWriter("TitleUrl.txt"))
{
for (int i = 0; i < dataGridViewTitleURL.Rows.Count - 1; i++)
{
string title = dataGridViewTitleURL.Rows[i].Cells[0].Value.ToString();
string url = dataGridViewTitleURL.Rows[i].Cells[1].Value.ToString();
await writer.WriteLineAsync(title);
await writer.WriteLineAsync(url);
//更新进度条
progressForm.progress.Value = 50 * i / dataGridViewTitleURL.Rows.Count;
progressForm.Text = "任务进度：" + progressForm.progress.Value + "%";
}
}
using (StreamWriter writer = new StreamWriter("Urls.txt"))
{
int i = 0;
foreach (string url in urls)
{
await writer.WriteLineAsync(url);
i++;
//更新进度条
progressForm.progress.Value = 50 + 50 * i / urls.Count;
progressForm.Text = "任务进度：" + progressForm.progress.Value + "%";
}
}
progressForm.Close();
MessageBox.Show("保存数据完成！");
this.Enabled = true;
}