¼Ò¼³°°Àº ÀÚ¹Ù 4ºÎ  Á¦17Àå ¼ÒÄÏÇÁ·Î±×·¥  17.3 DayTime ÇÁ·Î±×·¥  

 

17.3 DayTime ÇÁ·Î±×·¥

 

 

³×Æ®¿öÅ© ¼­¹öÀÇ 13¹ø Port¸¦ ¿¬°á ÇÑ ÈÄ µ¥ÀÌÅ͸¦ ÀÐ¾î ³»¸é ÀÚµ¿À¸·Î ÇØ´ç ¼­¹öÀÇ ³¯Â¥¿Í ½Ã°£À» ¾òÀ» ¼ö ÀÖ½À´Ï´Ù. ÀÌ ÇÁ·Î±×·¥Àº EchoÇÁ·Î±×·¥°ú ´Þ¸® ¼ÒÄÏ Á¢¼Ó ÈÄ µ¥ÀÌÅ͸¦ Çѹø¸¸ ÀÐ¾î ³»¸é µÇ±â ¶§¹®¿¡ ¼Ò½ºµµ °£´ÜÇÕ´Ï´Ù. ¿¹Á¦¸¦ »ìÆì º¸µµ·Ï ÇϰڽÀ´Ï´Ù.

 

DayTimePortTest.java( 13¹ø Port¸¦ ÀÌ¿ëÇÏ¿© ¼­¹öÀÇ DayTimeÀ» üũÇÏ´Â ¿¹Á¦)

import java.io.*;

import java.net.*;

public class DayTimePortTest {

   public static void main(String[] args) throws Exception{

          Socket socket = new Socket("www.snu.ac.kr", 13);

          BufferedReader socketIn = new BufferedReader(new InputStreamReader(socket.getInputStream()));

          String temp="";

          while((temp=socketIn.readLine())!=null)

             System.out.println("DayTime:" + temp);

          socketIn.close();

          socket.close();

   }

}

C:\JavaExample\17>javac DayTimePortTest.java

C:\JavaExample\17>java DayTimePortTest

DayTime:Wed Oct  3 23:08:00 2001

 

 ¿¬°áÇϰíÀÚ ÇÏ´Â ÄÄÇ»ÅÍÀÇ ¼ÒÄÏÀ» »ý¼ºÇÕ´Ï´Ù. À̶§ ÇØ´çÄÄÇ»ÅÍÀÇ È£½ºÆ®À̸§°ú 13¹øÀÇ Port¹øÈ£¸¦ ÀÌ¿ëÇÏ¿© ¼ÒÄÏÀ» »ý¼ºÇÏ½Ã¸é µË´Ï´Ù.

 

n        Socket socket = new Socket("www.snu.ac.kr", 13);

 

 º¸Åë ÇöÀçÀÇ ½Ã°£°ú ³¯Â¥¸¦ Ãâ·ÂÇÏ´Â ÀÌ·¯ÇÑ ÇÁ·Î±×·¥À» DayTimeÇÁ·Î±×·¥À̶ó°í Çϸç 13¹ø Port¸¦ »ç¿ëÇÕ´Ï´Ù. Echo´Â 7¹øÀ» »ç¿ëÇϵíÀÌ DayTimeÀº 13¹øÀ» »ç¿ëÇÕ´Ï´Ù. ±×·±µ¥ ÀÌ·¯ÇÑ PortÀÇ ¹øÈ£¼±Á¤Àº ÀϹݷÐÀÌÁö Çʼö´Â ¾Æ´Õ´Ï´Ù. ½Ã½ºÅÛ ¿î¿µÀÚ°¡ º¯ÇüÀ» ÇÑ´Ù¸é ¾î¿ ¼ö ¾ø°ÚÁÒ. ¿©·¯ºÐÀÌ ¾Ë°í ÀÖ´Â ¼­¹ö¿¡ Á÷Á¢ Å×½ºÆ® ÇØº¸½Ã±â ¹Ù¶ø´Ï´Ù. ¼ÒÄÏÀÌ ¿¬°áµÇ¾ú´Ù¸é ´ç¿¬È÷ ¼ÒÄÏÀ» ÀÔ·Â ½ºÆ®¸²À» »ý¼ºÇØ¾ß ÇÕ´Ï´Ù. ¼ÒÄÏÁ¢¼Ó°ú µ¿½Ã¿¡ ³¯Â¥¿Í ½Ã°£À» º¸³»Áֱ⠶§¹®¿¡ µ¥ÀÌÅ͸¦ ¹Ù·Î ¹Þ¾Æ¾ß Çϱ⠶§¹®ÀÌÁÒ.

 

n        BufferedReader socketIn = new BufferedReader (

new  InputStreamReader ( socket.getInputStream ()));

 

 ½ºÆ®¸²À» ÁÙ ´ÜÀ§·Î ÀÐ¾î ³»±â À§Çؼ­ ÀûÀýÇÏ°Ô º¯È¯Çϰí ÀÖ½À´Ï´Ù. ÀÔ·Â ½ºÆ®¸²±îÁö »ý¼ºµÇ¾ú´Ù¸é µ¥ÀÌÅ͸¦ Àоî¾ß°ÚÁÒ. µ¥ÀÌÅ͸¦ ÀÐ¾î ³»´Â ºÎºÐÀº ´ÙÀ½°ú °°½À´Ï´Ù.

 

n        while((temp=socketIn.readLine())!=null)

n             System.out.println("DayTime:" + temp);

 

 ½ºÆ®¸²¿¡ ¾Æ¹«°Íµµ ¾øÀ» ¶§±îÁö Àо´Â ºÎºÐÀÔ´Ï´Ù. ÀÌ¿Í °°ÀÌ ÇßÀ» ¶§ ¿©·¯ºÐÀº È­¸é¿¡ ÇØ´ç ½Ã½ºÅÛÀÇ ³¯Â¥¿Í ½Ã°£À» È®ÀÎ ÇÒ ¼ö ÀÖÀ» °ÍÀÔ´Ï´Ù.



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