SCALA ScriptEngine如何实现复用Compiled

问题：SCALA 中使用ScriptEngine动态调用脚本时，效率很低，主要瓶颈是初始化SCALA环境和编译脚本。而ScriptEngine提供了预编译的方法，但scala脚本无法使用BINDINGS进行传参，这点我已经反复测试。详情如下：

ScriptEngineManager manager = new ScriptEngineManager();

    ScriptEngine engine = manager.getEngineByName("scala");

    Bindings bindings = engine.createBindings();

    bindings.put("firstVal", 209);

    bindings.put("secondVal", 30);

    bindings.put("sumUtil", new Sum());

    CompiledScript script = ((Compilable)engine).compile(

        "var sum = sumUtil.asInstanceOf[com.myutils.Sum]\n"+

        "var firstInt = firstVal.asInstanceOf[Integer]\n"+

        "var secondInt = secondVal.asInstanceOf[Integer]\n"+

        "sum.add(firstInt, secondInt)\n"   

        );         

    Integer res1 = (Integer) script.eval(bindings);

    System.out.println("Result 1: "+res1);

    bindings = engine.createBindings();

    bindings.put("firstVal", 2);

    bindings.put("secondVal", 3);

    Integer res2 = (Integer) script.eval(bindings);

    System.out.println("Result 2: "+res2);

执行结果如下：

firstVal: Object = 209

secondVal: Object = 30

sumUtil: Object = com.myutils.Sum@71136646

Result 1: 239

firstVal: Object = 2

secondVal: Object = 3

Result 2: 239

如何动态的给编译好的程序绑定变量呢，我提供了以下方法绕行：

val m =new ScriptEngineManager()

val engine = m.getEngineByName("scala")

val settings = engine.asInstanceOf[scala.tools.nsc.interpreter.IMain].settings

settings.usejavacp.value =true

val compilable: Compilable = engine.asInstanceOf[Compilable]

val scripts =

"""

|import scala.collection.mutable

|val helloWorld = (gays:mutable.Map[String, Any]) => {

|  gays.foreach(gay =>{

|    println(gay)

|  })

|

|  gays

|}

|helloWorld

  """.stripMargin

val compiledScript: CompiledScript = compilable.compile(scripts)

val unit:AnyRef = compiledScript.eval()

println(unit.getClass)

val s = unit.asInstanceOf[Function1[mutable.Map[String, Any], AnyRef]](mutable.Map[String, Any]("yjd" ->"hello"))

println(s)

结果如下

class $line3.$read$$iw$$iw$$anon$1$$anonfun$1

(yjd,hello)

Map(yjd -> hello)