很多朋友都想知道java怎么獲取網(wǎng)絡(luò)時(shí)間？下面就一起來(lái)了解一下吧~

通過(guò)網(wǎng)站獲取網(wǎng)絡(luò)時(shí)間：

import?java.io.IOException;
import?java.net.MalformedURLException;
import?java.net.URL;
import?java.net.URLConnection;
import?java.text.SimpleDateFormat;
import?java.util.Date;
public?class?DateDemo?{
????public?static?void?main(String[]?args)?{
??????String?webUrlt?=?"http://www.taobao.com";
??????String?webUrlb?=?"http://www.baidu.com";
??????System.out.println(getNetworkTime(webUrlt)?+?"?[淘寶]");
??????System.out.println(getNetworkTime(webUrlb)?+?"?[百度]");
????}
??????public?static?String?getNetworkTime(String?webUrl)?{
??????????try?{
??????????????URL?url?=?new?URL(webUrl);
??????????????URLConnection?conn?=?url.openConnection();
??????????????conn.connect();
??????????????long?dateL?=?conn.getDate();
??????????????Date?date?=?new?Date(dateL);
??????????????SimpleDateFormat?dateFormat?=?new?SimpleDateFormat("YYYY-MM-dd?HH:mm:ss");
??????????????return?dateFormat.format(date);
??????????}?catch?(MalformedURLException?e)?{
??????????????e.printStackTrace();
??????????}?catch?(IOException?e)?{
??????????????e.printStackTrace();
??????????}
??????????return?"";
??????}
??}

通過(guò)java.util.Date類(lèi)獲取本地時(shí)間：

??????Date?date?=?new?Date();
????????SimpleDateFormat?dateFormat?=?new?SimpleDateFormat("YYYY-MM-dd?HH:mm:ss");
????????System.out.println("date="?+?dateFormat.format(date.getTime()));

最終結(jié)果：

2019-06-17?01:31:02?[淘寶]2019-06-17?01:31:02?[百度]

以上就是小編今天的分享，希望可以幫到大家。