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 |
C# 解析js方法,并调用js方法,布布扣,bubuko.com
原文:http://www.cnblogs.com/zfanlong1314/p/3675328.html