.NET Core(C#) 操作selenium(Chrome)对网页截完整页面长图的方法及示例代码
时间:2022-11-22
1、使用Nuget安装引用Selenium
安装Selenium.Support
和Selenium.WebDriver.ChromeDriver
1)使用Nuget界面管理器
相关文档:VS(Visual Studio)中Nuget的使用
2)使用Package Manager命令安装
PM> Install-Package Selenium.Support -Version 3.141.0 PM> Install-Package Selenium.Chrome.WebDriver -Version 79.0.0
3)使用.NET CLI命令安装
> dotnet add package Selenium.Support -Version 3.141.0 > dotnet add package Selenium.Chrome.WebDriver --version 79.0.0
2、载取可视区域图片
public static void PageScreenshot(string url,string path) { ChromeDriver driver = null; try { ChromeOptions options = new ChromeOptions(); options.AddArguments("headless", "disable-gpu"); driver = new ChromeDriver(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), options); driver.Navigate().GoToUrl(url); var screenshot = (driver as ITakesScreenshot).GetScreenshot(); screenshot.SaveAsFile(path); } catch (Exception ex) { logger.Error(ex.Message+Environment.NewLine+ex.StackTrace); } finally { if (driver != null) { driver.Close(); driver.Quit(); } } }
3、载取有滚动条网页长图
public static void PageScreenshot(string url,string path) { ChromeDriver driver = null; try { ChromeOptions options = new ChromeOptions(); options.AddArguments("headless", "disable-gpu"); driver = new ChromeDriver(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), options); driver.Navigate().GoToUrl(url); string >"return document.body.scrollWidth").ToString(); string >"return document.body.scrollHeight").ToString(); driver.Manage().Window.Size = new System.Drawing.Size(int.Parse(> var screenshot = (driver as ITakesScreenshot).GetScreenshot(); screenshot.SaveAsFile(path); } catch (Exception ex) { logger.Error(ex.Message+Environment.NewLine+ex.StackTrace); } finally { if (driver != null) { driver.Close(); driver.Quit(); } } }
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