java jdk 里自带的 javascript引擎的使用

main方法代码：

import javax.script.ScriptContext;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;public class Main {public static void main(String[] args) throws ScriptException {ScriptEngineManager scriptEngineManager = new ScriptEngineManager();ScriptEngine jsEngine = scriptEngineManager.getEngineByName("js");String jsTxt =" function getObjectJsonString() { " +" var man = new Object(); " +" man.name = 'zs'; " +" man.age = '18'; " +" var json_string = JSON.stringify(man);" +" return json_string;" +"  }" +"var rs = getObjectJsonString();";jsEngine.eval(jsTxt);ScriptContext jsContext = jsEngine.getContext();Object rs = jsContext.getAttribute("rs", ScriptContext.ENGINE_SCOPE);System.out.println(rs);}
}

 控制台输出：