C#模擬瀏覽器實現(xiàn)自動操作
使用WebBrowser加載網(wǎng)頁(內(nèi)嵌)
通過WebBrowser控件打開瀏覽頁面,并操作頁面元素實現(xiàn)自動搜索功能
//是否已經(jīng)加載網(wǎng)頁標準 private bool isLoadok = false; //首次加載網(wǎng)頁標準 private bool firstLoaded = false; //后臺服務 private BackgroundWorker bgwork; public WebBrowserDemo() { InitializeComponent(); } /// <summary> /// 自動窗體后加載網(wǎng)頁并獲取網(wǎng)絡元素,實現(xiàn)賦值,點擊操作 /// winform窗體上添加了一個名為webBrowser1的WebBrowser控件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Form1_Load(object sender, EventArgs e) { this.BeginInvoke(new Action(() => { bgwork = new BackgroundWorker(); bgwork.DoWork += Bgwork_DoWork; bgwork.RunWorkerCompleted += Bgwork_RunWorkerCompleted; string url = "https://www.so.com/"; this.webBrowser1.ScriptErrorsSuppressed = true; this.webBrowser1.Navigate(url); webBrowser1.DocumentCompleted += WebBrowser1_DocumentCompleted; bgwork.RunWorkerAsync(); 判斷網(wǎng)頁是否加載完成:等待不起作用,一直在加載網(wǎng)頁,使用DocumentCompleted事件 //while (this.webBrowser1.IsBusy || webBrowser1.ReadyState != WebBrowserReadyState.Complete) //{ // Thread.Sleep(1000); //} //string search_id = "input"; //string search_value = "天安門"; //string btn_id = "search-button"; //HtmlDocument doc = this.webBrowser1.Document; //HtmlElement search = doc.GetElementById(search_id); //search.SetAttribute("value", search_value); //HtmlElement btn = doc.GetElementById(btn_id); //btn.InvokeMember("click"); })); } /// <summary> /// WebBrowser加載網(wǎng)頁完成事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void WebBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e) { this.BeginInvoke(new Action(() => { if (this.webBrowser1.IsBusy == false && webBrowser1.ReadyState == WebBrowserReadyState.Complete&& firstLoaded==false) { firstLoaded=true; string search_id = "input"; string search_value = "自動化"; string btn_id = "search-button"; HtmlDocument doc = this.webBrowser1.Document; HtmlElement search = doc.GetElementById(search_id); search.SetAttribute("value", search_value); HtmlElement btn = doc.GetElementById(btn_id); btn.InvokeMember("click"); } })); } /// <summary> /// 后臺服務完成事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Bgwork_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { this.webBrowser1.Document.Window.Error += new HtmlElementErrorEventHandler(Window_Error); if(webBrowser1.ReadyState == WebBrowserReadyState.Complete) { isLoadok = true; } else { isLoadok = false; } } /// <summary> /// 加載網(wǎng)頁錯誤事件 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Window_Error(object sender, HtmlElementErrorEventArgs e) { e.Handled = true; } /// <summary> /// 后臺服務 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Bgwork_DoWork(object sender, DoWorkEventArgs e) { compWait(); } /// <summary> /// 后臺服務方法 /// </summary> private void compWait() { while(!isLoadok) { Thread.Sleep(500); } }
使用 Selenium WebDriver加載網(wǎng)頁(獨立)
Selenium WebDriver 是一個基于 Web 的自動化測試框架,可以測試在各種Web瀏覽器和各種操作系統(tǒng)上啟動的網(wǎng)頁。可以自由使用各種編程語言(例如Java、Perl、Python、Ruby、C#、PHP 和 JavaScript)編寫測試腳本。注:可以不需要下載webdriver驅(qū)動
private void btnLoad_Click(object sender, EventArgs e) { // 設置Chrome選項,可選 var options = new ChromeOptions(); //options.AddArgument("--headless"); // 無頭模式,不打開瀏覽器窗口 // 初始化WebDriver IWebDriver driver = new ChromeDriver(options); try { // 打開網(wǎng)頁 driver.Navigate().GoToUrl("https://account.chsi.com.cn/passport/login"); //driver.Navigate().Back(); //driver.Navigate().Refresh(); // 等待頁面加載完成,知道頁面空閑,超時10s拋出異常 //var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10)); //wait.Until(SeleniumExtras.WaitHelpers.ExpectedConditions.BrowserIsNotBusy()); //查找用戶輸入框并輸入用戶名 driver.FindElement(By.Name("username")).SendKeys("Tom"); //查找密碼輸入框并輸入密碼 driver.FindElement(By.Name("password")).SendKeys("123456"); driver.Manage().Window.Maximize(); 查找提交按鈕并點擊提交按鈕 //driver.FindElement(By.ClassName("btn_login")).Click(); // 獲取頁面源碼 string pageSource = driver.PageSource; Console.WriteLine(pageSource); } catch(Exception ex) { Console.WriteLine(ex.Message); } finally { 清理,關閉瀏覽器 //driver.Quit(); } }
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