Use an external file containing the javascript code. The .JS file is loaded from the classpath. : Script Engines « JDK 6 « Java

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Java » JDK 6 » Script Engines

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Use an external file containing the javascript code. The .JS file is loaded from the classpath.


   



import java.io.InputStreamReader;

import java.util.List;



import javax.script.Invocable;

import javax.script.ScriptEngine;

import javax.script.ScriptEngineManager;



public class Main {

  public static void main(String[] args) throws Exception {

    ScriptEngineManager mgr = new ScriptEngineManager();

    ScriptEngine engine = mgr.getEngineByName("javascript");



    engine.eval(new InputStreamReader(Main.class.getResourceAsStream("scripting.js")));



    List<String> list1 = (List<String>) engine.get("list1");

    if (list1 != null) {

      for (String s : (List<String>) list1) {

        System.out.println(s);

      }

    }

    Invocable engineInv = (Invocable) engine;

    Object obj = engine.get("listObject");

    Object list2 = engineInv.invokeMethod(obj, "getList2");

    if (list2 != null) {

      for (String s : (List<String>) list2) {

        System.out.println(s);

      }

    }

  }

}

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19.	Retrieving Script Engines by Name
20.	Retrieving the Metadata of Script Engines
21.	Retrieving the Supported File Extensions of a Scripting Engine
22.	Retrieving the Supported Mime Types of a Scripting Engine
23.	Retrieving the Registered Name of a Scripting Engine
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31.	Use an external file containing the javascript code
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34.	Escape and unescape javascript code
35.	Utility to take xml string and convert it to a javascript based tree within html.

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