.NET(C#) CefSharp CommandLine开关参数配置和读取网页源代码方法及示例代码
时间:2022-11-18
1、使用CommandLine进行浏览器参数配置
CommandLine开关参数文档:chromium-command-line-switches
public static void Init() { // Set Google API keys, used for Geolocation requests sans GPS. See http://www.chromium.org/developers/how-tos/api-keys // Environment.SetEnvironmentVariable("GOOGLE_API_KEY", ""); // Environment.SetEnvironmentVariable("GOOGLE_DEFAULT_CLIENT_ID", ""); // Environment.SetEnvironmentVariable("GOOGLE_DEFAULT_CLIENT_SECRET", ""); //Chromium Command Line args //http://peter.sh/experiments/chromium-command-line-switches/ //NOTE: Not all relevant in relation to `CefSharp`, use for reference purposes only. var settings = new CefSettings(); settings.RemoteDebuggingPort = 8088; //The location where cache data will be stored on disk. If empty an in-memory cache will be used for some features and a temporary disk cache for others. //HTML5 databases such as localStorage will only persist across sessions if a cache path is specified. settings.CachePath = "cache"; //settings.UserAgent = "CefSharp Browser" + Cef.CefSharpVersion; // Example User Agent //settings.CefCommandLineArgs.Add("renderer-process-limit", "1"); //settings.CefCommandLineArgs.Add("renderer-startup-dialog", "renderer-startup-dialog"); //settings.CefCommandLineArgs.Add("disable-gpu", "1"); //settings.CefCommandLineArgs.Add("disable-gpu-vsync", "1"); //settings.CefCommandLineArgs.Add("enable-media-stream", "1"); //Enable WebRTC //settings.CefCommandLineArgs.Add("no-proxy-server", "1"); //Don't use a proxy server, always make direct connections. Overrides any other proxy server flags that are passed. //settings.CefCommandLineArgs.Add("debug-plugin-loading", "1"); //Dumps extra logging about plugin loading to the log file. //settings.CefCommandLineArgs.Add("disable-plugins-discovery", "1"); //Disable discovering third-party plugins. Effectively loading only ones shipped with the browser plus third-party ones as specified by --extra-plugin-dir and --load-plugin switches //Disables the DirectWrite font rendering system on windows. //Possibly useful when experiencing blury fonts. //settings.CefCommandLineArgs.Add("disable-direct-write", "1"); var proxy = ProxyConfig.GetProxyInformation(); switch (proxy.AccessType) { case InternetOpenType.Direct: { //不要使用代理服务器,总是直接连接。 settings.CefCommandLineArgs.Add("no-proxy-server", "1"); break; } case InternetOpenType.Proxy: { settings.CefCommandLineArgs.Add("proxy-server", proxy.ProxyAddress); break; } case InternetOpenType.PreConfig: { settings.CefCommandLineArgs.Add("proxy-auto-detect", "1"); break; } } settings.LogSeverity = LogSeverity.Verbose; if (DebuggingSubProcess) { var architecture = Environment.Is64BitProcess ? "x64" : "x86"; settings.BrowserSubprocessPath = "..\\..\\..\\..\\CefSharp.BrowserSubprocess\\bin\\" + architecture + "\\Debug\\CefSharp.BrowserSubprocess.exe"; } settings.RegisterScheme(new CefCustomScheme { SchemeName = CefSharpSchemeHandlerFactory.SchemeName, SchemeHandlerFactory = new CefSharpSchemeHandlerFactory() }); Cef.OnContextInitialized = delegate { Cef.SetCookiePath("cookies", true); }; if (!Cef.Initialize(settings, shutdownOnProcessExit: true, performDependencyCheck: !DebuggingSubProcess)) { throw new Exception("Unable to Initialize Cef"); } }
2、读取网页源代码
1) 在页面加载完成后处理, 依赖最低环境 4.5.2
async void browser_FrameLoadEnd(object sender, FrameLoadEndEventArgs e)
{
Log.WriteLog("browser_FrameLoadEnd:" + e.Url);
var result = await browser.GetSourceAsync();
}
2) 4.0下环境操作需要使用。
var task = browser.GetSourceAsync();
task.Wait();
string content = task.Result;
相关文档:
https://github.com/cefsharp/CefSharp/wiki/Quick-Start
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