How to execute JavaScript in Java

Java 6 provides full fledged scripting support. There is a in-built Mozilla Rhino Javascript engine available in JDK6 and JRE6.

Scripting is recommended in many large scale applications for Sophisticated configurations and ease of maintenance.

Using scripting from the Java platform is easy because the API is relatively small. You can quickly add scripting support to your application using only a handful of interfaces and classes in the javax.script package.

Following code quickly enables your Java environment to run a Java script.


ScriptEngineManager mgr = new ScriptEngineManager();
ScriptEngine jsEngine = mgr.getEngineByName("JavaScript");
try {
jsEngine.eval("print('Hello, world!')");
} catch (ScriptException ex) {
ex.printStackTrace();
}


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