bsh for android : 查标准时间

最新推荐文章于 2020-02-24 12:15:26 发布

原创最新推荐文章于 2020-02-24 12:15:26 发布 · 1.1k 阅读

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本文展示了如何使用BeanShell编写代码，实现将UTC时间转换为本地时间，并通过网络请求验证时间准确性。

beanshell : TimeTest.bsh

import java.io.*;
import java.net.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

TimeTest()
{
   private static DateFormat fmt1 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
   fmt1.setTimeZone(TimeZone.getTimeZone("GMT+8"));
   
   private static DateFormat fmt = new SimpleDateFormat("yy-MM-dd HH:mm:ss");

   /** UTC -> local Time 
    */
   public static String getLocalTimeFromUTC(String UTCTime){
      java.util.Date UTCDate = null ;
      String localTimeStr = null ;
      try {
         UTCDate = fmt.parse(UTCTime);
         fmt.setTimeZone(TimeZone.getTimeZone("GMT+8"));
         localTimeStr = fmt.format(UTCDate) ;
      } catch (ParseException e) {
         print(e);
      }
      return localTimeStr ;
   }

   run()
   {  
      Calendar cal = new GregorianCalendar();
      zone = cal.getTimeZone().getID();
      print(zone);
      Date date1 = new Date();
      time1 = fmt1.format(date1);
      print("my "+time1);
      try
      {  
         Socket s = new Socket("time.nist.gov", 13);
         try
         {
            InputStream inStream = s.getInputStream();
            Scanner in = new Scanner(inStream);
            
            while (in.hasNextLine())
            {  
               String line = in.nextLine();
               // print(line);
               if (line.length() >24){                  
                  String UTC = line.substring(6,24);
                  print("UTC  "+UTC);
                  print("CN 20"+getLocalTimeFromUTC(UTC));
               }
            }
         }
         finally
         {
            s.close();
         }
      }
      catch (IOException e)
      {  
         print(e);
      }
   }

   return this;
}

timetest = TimeTest();
timetest.run();

在 android 4.2 上测试成功