1.引用

NuGet安装：

Selenium.Support

Selenium.WebDriver

Selenium.WebDriver.PhantomJS.CrossPlatform  （分布Linux时把对应PhantomJS复制到发布目录）

2.后台打开的页面

 

@{    Layout = "/Views/Shared/Ordinary.cshtml";    ViewData["Title"] = "图表模版";}@section css{    
      }
      

 

3.生成图片代码

 

PhantomJSDriverService pds = PhantomJSDriverService.CreateDefaultService(AppDomain.CurrentDomain.BaseDirectory.ToString());                    var driver = new PhantomJSDriver(pds);                    var request = injection.GetHttpContext.HttpContext.Request;                    StringBuilder url = new StringBuilder();                    url.Append(request.Scheme);                    url.Append("://");                    url.Append(request.Host);                    url.Append("/Business/Report/TemplateEChart");                    driver.Navigate().GoToUrl(url.ToString());//打开链接

//执行js                    ((IJavaScriptExecutor)driver).ExecuteScript("myChart.setOption(" + JsonHelper.ObjectToJson(ff) + ");");                    //截图保存                    Screenshot screenshot = ((ITakesScreenshot)driver).GetScreenshot();                    string mapPath = @hostingEnvironment.WebRootPath;                    string imgPatht = "/report/tempImg";                    string dirt = mapPath + imgPatht;                    if (!Directory.Exists(dirt))                    {                        DirectoryInfo dirInfo = Directory.CreateDirectory(dirt);                    }                    string imgSrct = imgPatht + "/" + Guid.NewGuid().ToString() + ".png";                    string fullPatht = mapPath + imgSrct;                    screenshot.SaveAsFile(fullPatht, ScreenshotImageFormat.Png);                    //退出                    driver.Quit();

 

错误：Permission denied

解决方法：PhantomJS文件设置最高权限

错误：System.TypeInitializationException: The type initializer for 'Gdip' threw an exception. ---> System.DllNotFoundException: Unable to load DLL 'libgdiplus': The specified module could not be found.

解决方法：Linux安装    yum install libgdiplus