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 ȸ鿡 ÇØ´ç ½Ã½ºÅÛÀÇ ³¯Â¥¿Í ½Ã°£À» È®ÀÎ ÇÒ ¼ö ÀÖÀ» °ÍÀÔ´Ï´Ù.
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