本文转载:http://www.cnblogs.com/StudyLife/archive/2013/03/11/2953516.html
本文不是基于B/S的 后台调用前台js方法,而是给你一段js方法字符串,让你在程序中直接解析这段方法,并调用方法得到想要的值。 首先要解析Js方法,可以用微软的msscript.ocx控件(Interop.MSScriptControl.dll)来解析js方法. 1.msscript.ocx下载的地址 http://www.microsoft.com/downloads/details.aspx?displaylang=zh-cn&FamilyID=D05FCF37-4D9F-4769-9442-0BCEEF907033 或者点击此处下载 Interop.MSScriptControl.dll 2.项目中引用 msscript.ocx 或者 Interop.MSScriptControl.dll 现在通过控件的一些方法可以解析js方法,并调用js方法返回值。 不过这儿可以将控件类的一些属性和方法封装成单独的类,方便自己调用。 封装成ScriptEngine类。 using System; using MSScriptControl; using System.Text; //导入js文件,导入js 方法字符串,然后执行js方法。 通过msscript.ocx控件执行JS脚本 ,先引用 Interop.MSScriptControl.dll //官网下载: 然后 引用 xxx.ocx就行了 http://www.microsoft.com/downloads/details.aspx?displaylang=zh-cn&FamilyID=D05FCF37-4D9F-4769-9442-0BCEEF907033 namespace csharp中执行js方法 { class script_run { /// <summary> /// 脚本类型 /// </summary> public enum ScriptLanguage { /// <summary> /// JScript脚本语言 /// </summary> JScript, /// <summary> /// VBscript脚本语言 /// </summary> VBscript, /// <summary> /// JavaScript脚本语言 /// </summary> JavaScript } /// <summary> /// 脚本运行错误代理 /// </summary> public delegate void RunErrorHandler(); /// <summary> /// 脚本运行超时代理 /// </summary> public delegate void RunTimeoutHandler(); /// <summary> /// ScriptEngine类 /// </summary> public class ScriptEngine { private ScriptControl msc; /// <summary> /// 定义脚本运行错误事件 /// </summary> public event RunErrorHandler RunError; /// <summary> /// 定义脚本运行超时事件 /// </summary> public event RunTimeoutHandler RunTimeout; /// <summary> ///构造函数 默认为 VBscript 脚本类型 /// </summary> public ScriptEngine() : this(ScriptLanguage.VBscript) { } /// <summary> /// 构造函数 /// </summary> /// <param name="language">脚本类型</param> public ScriptEngine(ScriptLanguage language) { this.msc = new ScriptControlClass(); this.msc.UseSafeSubset = true; this.msc.Language = language.ToString(); ((DScriptControlSource_Event)this.msc).Error += new DScriptControlSource_ErrorEventHandler(OnError); ((DScriptControlSource_Event)this.msc).Timeout += new DScriptControlSource_TimeoutEventHandler(OnTimeout); } /// <summary> /// 运行Eval方法 /// </summary> /// <param name="expression">表达式</param> /// <param name="codeBody">函数体</param> /// <returns>返回值object</returns> public object Eval(string expression, string codeBody) { msc.AddCode(codeBody); return msc.Eval(expression); } /// <summary> /// 运行Eval方法 /// </summary> /// <param name="language">脚本语言</param> /// <param name="expression">表达式</param> /// <param name="codeBody">函数体</param> /// <returns>返回值object</returns> public object Eval(ScriptLanguage language, string expression, string codeBody) { if (this.Language != language) this.Language = language; return Eval(expression, codeBody); } /// <summary> /// 运行Run方法 /// </summary> /// <param name="mainFunctionName">入口函数名称 例如:add</param> /// <param name="parameters">参数:例如:new object(){"",""}</param> /// <param name="codeBody">函数体 例如:fucniton add(int a,int b){return a+b;}</param> /// <returns>返回值object:获取object.Tostring()</returns> public object Run(string mainFunctionName, object[] parameters, string codeBody) { this.msc.AddCode(codeBody); return msc.Run(mainFunctionName, parameters); } /// <summary> /// 运行Run方法 /// </summary> /// <param name="language">脚本语言</param> /// <param name="mainFunctionName">入口函数名称</param> /// <param name="parameters">参数</param> /// <param name="codeBody">函数体</param> /// <returns>返回值object</returns> public object Run(ScriptLanguage language, string mainFunctionName, object[] parameters, string codeBody) { if (this.Language != language) this.Language = language; return Run(mainFunctionName, parameters, codeBody); } /// <summary> /// 放弃所有已经添加到 ScriptControl 中的 Script 代码和对象 /// </summary> public void Reset() { this.msc.Reset(); } /// <summary> /// 获取或设置脚本语言 /// </summary> public ScriptLanguage Language { get { return (ScriptLanguage)Enum.Parse(typeof(ScriptLanguage), this.msc.Language, false); } set { this.msc.Language = value.ToString(); } } /// <summary> /// 获取或设置脚本执行时间,单位为毫秒 /// </summary> public int Timeout { get { return 0; } } /// <summary> /// 设置是否显示用户界面元素 /// </summary> public bool AllowUI { get { return this.msc.AllowUI; } set { this.msc.AllowUI = value; } } /// <summary> /// 宿主应用程序是否有保密性要求 /// </summary> public bool UseSafeSubset { get { return this.msc.UseSafeSubset; } set { this.msc.UseSafeSubset = true; } } /// <summary> /// RunError事件激发 /// </summary> private void OnError() { if (RunError != null) RunError(); } /// <summary> /// OnTimeout事件激发 /// </summary> private void OnTimeout() { if (RunTimeout != null) RunTimeout(); } } } } 开始解析js方法。 假如有个js方法: function add(var a){return a+1;} 通过上面的ScriptEngine类调用 js:add 方法 ********************************************************************* //声明是Javascript方法 script_run.ScriptEngine myScript = new script_run.ScriptEngine(script_run.ScriptLanguage.JavaScript); //js字符串 string javascriptString=”function add(var a){return a+1;} function test(){}”; object jsmethodRunValue = myScript.Run("add", new object[] {“3”}, javascriptString); Console.WriteLine(jsmethodRunValue.ToString()); Console.ReadLine(); ********************************************************************************* 昂首阔步,不留一点遗憾
时间: 2024-10-01 01:58:54