我正在尝试通过 javascript 从 C# 类库 (dll) 访问公共(public)方法，特别是用于 javascript 的 Rhino 包。
这是我正在尝试做的事情:
namespace ReturnINT
{
public class ReturnINT
{
public static int RetornaInteiro ()
{
try
{
int number = 2;
return number;
}
catch (Exception)
{
return 1;
}
}
}
}
我从上面的代码创建了一个类库，或者准确地说是一个 dll 文件。现在我想在我的 javascript 中访问这个 dll，但我不想创建任何其他线程中提到的包装器。
有人可以在这里指导我，让我知道在创建 dll 文件时是否需要执行一些设置吗？
最佳答案
这是我在 ikvm 上使用 Rhino 的示例 .net C# 应用程序。
我的示例将执行 sunspider 基准测试脚本。
class Program
{
public static org.mozilla.javascript.Context con = null;
public static org.mozilla.javascript.Scriptable scope = null;
public static string FILE_PATH = @"C:\sunspider-0.9.1";
public static string JS_Script = "load('run.js');";
static void Main(string[] args)
{
Console.WriteLine("Using .NET Framework " + System.Environment.Version.ToString());
string ___strScriptPath = System.Configuration.ConfigurationManager.AppSettings["script_path"];
if (string.IsNullOrEmpty(___strScriptPath) == false && System.IO.Directory.Exists(___strScriptPath))
{
System.Environment.CurrentDirectory = ___strScriptPath;
FILE_PATH = ___strScriptPath;
}
else
{
System.Environment.CurrentDirectory = FILE_PATH;
}
string ___strOptLevel = System.Configuration.ConfigurationManager.AppSettings["opt"];
int ___optLevel = -1;
if (string.IsNullOrEmpty(___strOptLevel) == false)
{
if (int.TryParse(___strOptLevel, out ___optLevel))
{
if (___optLevel 9)
{
___optLevel = 9;
}
}
}
string ___strScript = System.Configuration.ConfigurationManager.AppSettings["script"];
if (string.IsNullOrEmpty(___strScript) == false)
{
JS_Script = ___strScript;
}
con = org.mozilla.javascript.Context.enter();
con.setLanguageVersion(org.mozilla.javascript.Context.VERSION_ES6);
//con.setGeneratingDebug(false);
con.setOptimizationLevel(___optLevel);
if (___optLevel == -1)
{
con.setGeneratingDebug(true);
con.setGeneratingSource(true);
con.setDebugger(null, null);
}
else
{
con.setGeneratingDebug(false);
con.setGeneratingSource(false);
con.setDebugger(null, null);
}
Console.WriteLine("Starting Rhino Processing OptLevel : {0} Path : {1}", ___optLevel, System.Environment.CurrentDirectory);
scope = con.initSafeStandardObjects();
org.mozilla.javascript.BaseFunction fuc = new org.mozilla.javascript.BaseFunction();
java.lang.Class css = typeof(Program);
java.lang.reflect.Member loadMethod = css.getMethod("load", new java.lang.Class[]{typeof(string)});
org.mozilla.javascript.FunctionObject func = new org.mozilla.javascript.FunctionObject("load", loadMethod, scope);
scope.put("load", scope,func);
java.lang.reflect.Member printMethod = css.getMethod("print", new java.lang.Class[] { typeof(object) });
org.mozilla.javascript.FunctionObject funcPrint = new org.mozilla.javascript.FunctionObject("print", printMethod, scope);
scope.put("print", scope, funcPrint);
java.lang.reflect.Member hogehogeMethod = css.getMethod("hogehoge", new java.lang.Class[] { typeof(object), typeof(object), typeof(object), typeof(object) });
DelegatableFunctionObject.deleHogehoge dele = new DelegatableFunctionObject.deleHogehoge(hogehoge);
//DelegatableFunctionObject funcHogehoge = new DelegatableFunctionObject("hogehoge", hogehogeMethod, scope,dele);
org.mozilla.javascript.FunctionObject funcHogehoge = new org.mozilla.javascript.FunctionObject("hogehoge", hogehogeMethod, scope);
scope.put("hogehoge", scope, funcHogehoge);
try
{
con.evaluateString(scope, JS_Script, "", 1, null);
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
DateTime dtStart = DateTime.Now;
/*
org.mozilla.javascript.Script script = con.compileString("", "", 1, null);
for (int i = 0; i cacheFile = new Dictionary();
public static void load(string s)
{
string trace = System.Environment.StackTrace;
string strScript = null;
strScript = System.IO.File.ReadAllText(FILE_PATH + "\\" + s);
// cacheFile[s] = strScript;
con.evaluateString(scope, strScript, "", 1, null);
}
public static void print(object o)
{
Console.WriteLine(string.Format("[Rhino] {0}", o));
}
public static void hogehoge(object o, object o2, object o3, object o4)
{
}
public class DelegatableFunctionObject : org.mozilla.javascript.FunctionObject
{
public delegate void deleHogehoge(object o1, object o2, object o3, object o4);
private deleHogehoge __dele = null;
public DelegatableFunctionObject(string name, java.lang.reflect.Member methodOrContructior, org.mozilla.javascript.Scriptable scope,deleHogehoge dele)
: base(name, methodOrContructior, scope)
{
this.__dele = dele;
}
public override object call(org.mozilla.javascript.Context cx, org.mozilla.javascript.Scriptable scope, org.mozilla.javascript.Scriptable thisObj, object[] args)
{
if (__dele != null)
{
switch (args.Length)
{
case 1:
__dele.Invoke(args[0], null, null, null);
break;
}
}
return null;
}
}
}
希望对您有所帮助。
关于javascript - 如何从 javascript(rhino) 中的 C# 类库访问公共(public)方法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34095130/