一文搞定C#.Net如何调用/交互Javascript

问题

2020年了网上C#调用Js的方法还是

1、引用webbrowser控件，简直是刁难我控制台！

2、引用Interop.MSScriptControl.dll

        private static object ExecuteScript(string argument, string jsCode)
        {
            MSScriptControl.ScriptControl scriptControl = new MSScriptControl.ScriptControl();
            scriptControl.UseSafeSubset = true;
            scriptControl.Language = "JScript";
            scriptControl.AddCode(jsCode);
            try
            {
                return scriptControl.Eval(argument);
            }
            catch (Exception exception)
            {
            }
            return null;
        }

但是此程序集已经长久不更新了，JavaScript ES5不支持，从网上下载的版本：

报错：

System.Runtime.InteropServices.COMException:“Retrieving the COM class factory for component with CLSID {0E59F1D5-1FBE-11D0-8FF2-00A0D10038BC} failed due to the following error: 80040154 没有注册类 (0x80040154 (REGDB_E_CLASSNOTREG)).”

解决方案

nuget引入V8.Net:

将DLL文件拷贝到输出目录：

c#调用即可：

c#/Javascript可以互相传递/调用对象

private readonly static string JsPath = Directory.GetCurrentDirectory() + "/your.js";

        public static object ExecuteJavaScript(string cityid, string page)
        {
            string code = File.ReadAllText(JsPath);
            
            V8Engine engine = new V8Engine();
            engine.RunMarshallingTests();

            //定义可以在JS中使用的全局变量，string/value
            engine.GlobalObject.SetProperty("cityid_CSObject", cityid);
            engine.GlobalObject.SetProperty("page_CSObject", page);
            
            //js中return object
            string result = engine.ConsoleExecute(code).AsString;
            return result;
        }