java服务器端运行客户端Script

import javax.script.*;

import static java.lang.System.*;

ScriptEngineManager manager = new ScriptEngineManager();

// 得到javascript脚本引擎

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

try

{

// 开始运行脚本，并返回当前的小时

Double hour = (Double)engine.eval("var date = new Date();" +"date.getHours();");

String msg;

// 将小时转换为问候信息

if (hour < 10)

{

msg = "上午好good morning";

}

else if (hour < 16)

{

msg = "下午好good afternoon";

}

else if (hour < 20)

{

msg = "晚上好good night";

}

else

{

msg = "晚安good luck";

}

out.printf("小时%s: %s%n", hour, msg);

}

catch (ScriptException e)

{

err.println(e);

}