//手动点击浏览
private void btnBrowsing_Click(object sender, EventArgs e)
{
if (btnBrowsing.Enabled == true && chkEnableAutomaticBrowsing.Checked == true)
{
btnBrowsing.Enabled = false;
Thread thread = new Thread(new ThreadStart(AutoBrowsing));
thread.IsBackground = true;
thread.Start();
}
else
{
MessageBox.Show("任务正在执行!");
}
}
DateTime tempTime = DateTime.MinValue;//防止一分钟内刷新多次
private void timer1_Tick(object sender, EventArgs e)
{
DateTime dt = DateTime.Now;
//转钟时清除一天日志
if (dt.ToLongTimeString() == "0:00:00")
{
rtxtLogs.Text = string.Empty;
}
TimeSpan ts = dt - tempTime;
//1分钟内不得刷新两次
if (ts.TotalMinutes > 0)
{
//到点自动刷新
if (lstTime.Items.Contains(dt.ToShortTimeString()))
{
tempTime = dt.AddMinutes(1);
btnBrowsing_Click(null, null);
}
}
}
private void AutoBrowsing()
{
int itemTotalCount = 0;
CrossThreadCalls.SafeInvoke(this.lvWebsitInfo, new CrossThreadCalls.TaskDelegate(delegate()
{
itemTotalCount = lvWebsitInfo.Items.Count;
}));
for (int i = 0; i < itemTotalCount; i++)
{
string url = string.Empty;
CrossThreadCalls.SafeInvoke(this.lvWebsitInfo, new CrossThreadCalls.TaskDelegate(delegate()
{
url = lvWebsitInfo.Items.SubItems[2].Text;
}));
int retry = 0;
retryFlag:
CrossThreadCalls.SafeInvoke(this.webBrowser1, new CrossThreadCalls.TaskDelegate(delegate()
{
webBrowser1.Navigate(url);
}));
if (WaitWebPageLoad())
{
CrossThreadCalls.SafeInvoke(this.rtxtLogs, new CrossThreadCalls.TaskDelegate(delegate()
{
rtxtLogs.AppendText(url + "浏览成功,浏览时间:" + DateTime.Now.ToLongTimeString() + "\r\n\r\n");
rtxtLogs.ScrollToCaret();
}));
CrossThreadCalls.SafeInvoke(this.lvWebsitInfo, new CrossThreadCalls.TaskDelegate(delegate()
{
lvWebsitInfo.Items.SubItems[3].Text = DateTime.Now.ToString();
}));
}
else
{
CrossThreadCalls.SafeInvoke(this.rtxtLogs, new CrossThreadCalls.TaskDelegate(delegate()
{
rtxtLogs.AppendText(url + "浏览失败,即将重试" + (retry + 1) + "次\r\n");
rtxtLogs.ScrollToCaret();
}));
if (retry < 2)//重试3次
{
retry++;
Thread.Sleep(3000);
goto retryFlag;
}
CrossThreadCalls.SafeInvoke(this.rtxtLogs, new CrossThreadCalls.TaskDelegate(delegate()
{
rtxtLogs.AppendText(url + "浏览失败\r\n\r\n");
rtxtLogs.ScrollToCaret();
}));
CrossThreadCalls.SafeInvoke(this.lvWebsitInfo, new CrossThreadCalls.TaskDelegate(delegate()
{
lvWebsitInfo.Items.SubItems[3].Text = "自动浏览失败";
}));
}
}
CrossThreadCalls.SafeInvoke(this.btnBrowsing, new CrossThreadCalls.TaskDelegate(delegate()
{
btnBrowsing.Enabled = true;
}));
CrossThreadCalls.SafeInvoke(this.webBrowser1, new CrossThreadCalls.TaskDelegate(delegate()
{
webBrowser1.Navigate("about:blank");
}));
}
/// <summary>
/// 判断webbrowser是否加载一个网页完毕,可判断包括iframe的网页
/// </summary>
/// <returns></returns>
private bool WaitWebPageLoad()
{
int i = 0;
string sUrl = string.Empty;
while (true)
{
Thread.Sleep(2000);
WebBrowserReadyState webBrowserState = WebBrowserReadyState.Uninitialized;
CrossThreadCalls.SafeInvoke(this.webBrowser1, new CrossThreadCalls.TaskDelegate(delegate()
{
webBrowserState = webBrowser1.ReadyState;
}));
if (webBrowserState == WebBrowserReadyState.Complete) //先判断是否发生完成事件。
{
bool isBusy = true;
CrossThreadCalls.SafeInvoke(this.webBrowser1, new CrossThreadCalls.TaskDelegate(delegate()
{
isBusy = webBrowser1.IsBusy;
}));
if (!isBusy) //再判断是浏览器是否繁忙
{
i = i + 1;
if (i == 2)
{
CrossThreadCalls.SafeInvoke(this.webBrowser1, new CrossThreadCalls.TaskDelegate(delegate()
{
sUrl = webBrowser1.Url.ToString();
}));
if (sUrl.Contains("res") || sUrl.Contains("daohang.114so.cn")) //这是判断没有网络的情况下
{
return false;
}
else
{
return true;
}
}
continue;
}
i = 0;
}
}
}