使用javax.script包实现Java设置JS脚本中的变量

package ajava.code.javase;
import javax.script.ScriptEngineManager;
import javax.script.ScriptEngine;
import javax.script.ScriptException;
import java.util.Date;
public class AjavaAccessJavaObjectFromScript {
   public static void main(String[] args) {
       //创建用户数组，共5个用户
       String[] users = {"mark", "道长", "笨笨", "13810", "way"};
       Date now = new Date();
       //脚本代码，输出所有在线用户及当前时间
       String script =
               "var index; " +
               "var users = userArray; " +
               "for (index in users) { " +
               "    println(users[index]); " +
               "}" +
               "println(‘----------‘); " +
               "println(‘当前时间 (‘ + date+‘)‘); ";
       //获得JS脚本引擎
       ScriptEngineManager manager = new ScriptEngineManager();
       ScriptEngine engine = manager.getEngineByExtension("js");
       //设置JS脚本中的userArray、date变量
       engine.put("userArray", users);
       engine.put("date", now);
       try {
           engine.eval(script);//执行JS脚本
       } catch (ScriptException e) {
           e.printStackTrace();
       }
   }
}