Electron調用.Net的Dll以及將.Net程序作為子進程運行

調用.Net Dll

const edge = require('electron-edge-js');
    var testDll = edge.func({
        assemblyFile: "./dll/electronedge.dll",
        typeName: "electronedge.MQ",
        methodName: "Invoke"
    });    

    window.setInterval(heartbeat, 100);

    var indexOption=0;

    function heartbeat(){
        testDll("測試消息 "+indexOption,(err,value)=>{
            var selectObj=document.getElementById("list");
            selectObj.options[indexOption] = new Option(value, indexOption);
            selectObj.selectedIndex = indexOption;

            indexOption++;

            var num = parseInt(value.substr(value.indexOf("測試消息 ")).replace(/測試消息 /,""));
            //alert(num);

            if(num != 0 && num % 5 == 0 && num % 7 == 0 && num<106)
            {
                //document.getElementById("Open1").click();
                
                var OpenWindow = new BrowserWindow ({frame:true,fullscreen:false,x:0,y:0,webPreferences: {nodeIntegration: true}})

                OpenWindow.webContents.openDevTools();

                OpenWindow.loadURL('file://' + __dirname + '/MQ.html');

                OpenWindow.on("close", function(){
                    OpenWindow = null;                    
                })

                var webContents = OpenWindow.webContents;
                webContents.on('dom-ready',function(){  
                      //MQjs是MQ.html中的js函數
                    webContents.executeJavaScript('MQjs('+num+');');
                });
            }
        });
    }    

 

 

子進程及通信

const spawn = require('child_process').spawn;
var childProcess = spawn('./dll/MQConsole.exe', ['參數1',1234]);

var OpenWindowA = new BrowserWindow ({frame:true,fullscreen:false,x:0,y:0,webPreferences: {nodeIntegration: true}})

    //OpenWindowA.webContents.openDevTools();

    OpenWindowA.loadURL('file://' + __dirname + '/MQ.html');

    OpenWindowA.on("close", function(){
        OpenWindowA = null;                    
    });

var webContentsA = OpenWindowA.webContents;

childProcess.stdout.on('data', (data) => { 

        var msgStr;
        if(data.toString().indexOf("WinA:")){
            msgStr = "中國:"+data.toString();
            
            webContentsA.executeJavaScript("MQjs('"+ msgStr.replace(/[\r\n]/g,"") + "');");
        }
        else if(data.toString().indexOf("WinB:")){
            msgStr = "美國:"+data.toString();
            webContentsB.executeJavaScript("MQjs('"+ msgStr.replace(/[\r\n]/g,"") + "');");
        }
        else{
            msgStr = "日本:"+data.toString();
        }

        selectObj.options[indexOption] = new Option(msgStr, indexOption);
        selectObj.selectedIndex = indexOption;
        indexOption++;
    });

MQConsole.exe代碼

namespace MQConsole
{
    class Program
    {
        static void Main(string[] args)
        {
            long num = 0;
            Console.OutputEncoding = Encoding.UTF8;
            while (true)
            {
                if(num % 2==0)
                    Console.WriteLine($"WinA:{num}");
                else
                    Console.WriteLine($"WinB:{num}");
                num++;
                Thread.Sleep(500);
            }
        }
    }
}

 

electronedge.dll代碼

namespace electronedge
{
    public class MQ
    {
        public async Task<object> Invoke(object input)
        {
            return Helper.Send(input.ToString());
        }

        public async Task<object> InvokeScreen(object id)
        {
            return Helper.SendScreen(id.ToString());
        }

        //public async Task<object> InitMQ(object input)
        //{
        //    return Helper.InitMQ();
        //}

        //public async Task<object> GetMQMsg(string id)
        //{
        //    return Helper.GetMQMsg(id);
        //}
    }

    static class Helper
    {
        static string RealData = "0000000";
        static Mutex mutex = new Mutex(false);
        public static string Send(string msg)
        {
            return $"來自dll : {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff")} {msg}";
        }
        public static string SendScreen(string id)
        {
            return $"來自{id} : {DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff")}";
        }

        //public static object InitMQ()
        //{
        //    Thread threadMQ = new Thread(new ThreadStart(RunMQ));
        //    threadMQ.Start();

        //    return null;
        //}

        //private static void RunMQ()
        //{
        //    mutex.WaitOne();
        //    RealData = DateTime.Now.Ticks.ToString();
        //    mutex.ReleaseMutex();
        //}

        //public static string GetMQMsg(string id)
        //{
        //    return RealData + "來自ID:" + id;
        //}
    }
}

 

完整代碼