JavaScript Utils : Script Engines « JDK 6 « Java
- Java
- JDK 6
- Script Engines
JavaScript Utils
import static java.lang.annotation.ElementType.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
import java.lang.reflect.Method;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
public class JavaScriptUtils {
@Target({ METHOD, FIELD })
@Retention(RUNTIME)
@interface JavaScript{
String value();
}
public static void eval(Method method) throws ScriptException {
JavaScript script = method.getAnnotation(JavaScript.class);
eval(script);
}
public static void eval(JavaScript script) throws ScriptException {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("js");
engine.eval(script.value());
}
}
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