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C#執(zhí)行Javascript代碼的幾種方法總結(jié)

更新時間：2014年01月26日 08:56:35 作者：

本篇文章主要是對C#執(zhí)行Javascript代碼的幾種方法進行了詳細的總結(jié)介紹，需要的朋友可以過來參考下，希望對大家有所幫助

一、開源項目 Javascript .NET

地址： http://javascriptdotnet.codeplex.com/ 它是Google Chrome V8引擎在.NET上的封裝，功能完善，性能相對較高，推薦使用! (缺點就是asp.net web應(yīng)用上，好象會報錯)

示例代碼：

復(fù)制代碼代碼如下:

using Noesis.Javascript; 
using System; 
using System.Collections.Generic; 

namespace JsCSharp 
{ 
    class Program 
    { 
        static void Main(string[] args) 
        { 
            using (JavascriptContext ctx = new JavascriptContext()) 
            { 
                var i = ctx.Run("1+2"); 
                Console.WriteLine(i);//3 
                ctx.Run("var d = new Date(2013,9-1,2,20,30,15)"); 
                var d = ctx.GetParameter("d"); 
                Console.WriteLine(d);//2013/9/2 20:30:15 
                var j = ctx.Run("function add(x,y){return x+y;};add(5,10);"); 
                Console.WriteLine(j);//15 
                ctx.Run("var obj = {};obj.name='jimmy';obj.sex='Male';obj.name='楊俊明'"); 
                var obj = ctx.GetParameter("obj") as Dictionary<string, object>; 
                foreach (var key in obj.Keys) 
                { 
                    Console.WriteLine(string.Format("{0}:{1}", key, obj[key])); 
                    //name:楊俊明 
                    //sex:Male 
                } 
                var jsonArr = ctx.Run("[{Airport:'PEK',Name:'北京首都機場'},{Airport:'XIY',Name:'西安咸陽機場'}]") as Array; 
                foreach (var item in jsonArr) 
                { 
                    var json = item as Dictionary<string, object>; 
                    foreach (var key in json.Keys) 
                    { 
                        Console.WriteLine(string.Format("{0}:{1}", key, json[key])); 
                        //Airport:PEK 
                        //Name:北京首都機場 
                        //Airport:XIY 
                        //Name:西安咸陽機場 
                    } 
                } 
                ctx.SetParameter("x", 7); 
                ctx.Run("function add(x,y){return x+y;}; function sub(x,y){return x-y;};k = add(2,x);var t = sub(9,1);"); 
                var k = ctx.GetParameter("k"); 
                Console.WriteLine(k);//9 
                var t = ctx.GetParameter("t"); 
                Console.WriteLine(t);//8 
                Console.Read(); 
            } 

        } 

    } 
}

部署時要注意，msvcp100.dll、msvcr100.dll這二個文件，要復(fù)制到bin目錄下

二、利用Microsoft.JScript.Vsa

先添加Microsoft.JScript、Microsoft.Vsa二個程序集的引用，然后就能用了，示例代碼如下:

復(fù)制代碼代碼如下:

using Microsoft.JScript; 
using Microsoft.JScript.Vsa; 
using System; 

namespace JsCSharp 
{ 
    class Program 
    { 
        static VsaEngine Engine = VsaEngine.CreateEngine(); 

        static void Main(string[] args) 
        { 
            var i = (int)EvalJScript("1+2;"); 
            Console.WriteLine(i);//3 
            var d = (DateObject)EvalJScript("var d = new Date(2013,9-1,2,20,30,15)"); 
            Console.WriteLine(d);//Mon Sep 2 20:30:15 UTC+8 2013 
            var j = EvalJScript("function add(x,y){return x+y;};add(5,10);"); 
            Console.WriteLine(j);//15 
            var obj = EvalJScript("var obj = {};obj.name='jimmy';obj.sex='Male';"); 
            Console.WriteLine(obj);//Male 注：只返回最后一條執(zhí)行的語句結(jié)果 
            Console.Read(); 
        } 

  
        static object EvalJScript(string JScript) 
        { 
            object Result = null; 
            try
            { 
                Result = Microsoft.JScript.Eval.JScriptEvaluate(JScript, Engine); 
            } 
            catch (Exception ex) 
            { 
                return ex.Message; 
            } 
            return Result; 

        } 
    } 
}