java¼ì²âQQÊÇ·ñÔÚÏß
package mylib.webxml;
//~--- JDK imports ------------------------------------------------------------
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
/**
*
* @author jmp esp
* @version 1.0
*
*/
public class CheckQQ {
// ²éѯºó·µ»ØµÄ״̬
private final static int ERROR_QQ = 2;
private final static int OFFLINE_QQ = 1;
private final static int ONLINE_QQ = 0;
//ÌØÕ÷Âë
private final static String ONLINE=">Y<";
private final static String OFFLINE=">N<";
private final static String WEBXML_QQ =
"http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx/qqCheckOnline?qqCode=";
/**
* ÅжÏQQÊÇ·ñÔÚÏß
* @param qq
* @return ÔÚÏß:0|²»ÔÚÏß:1|³öÏÖ´íÎó:2
*/
public static int isOnline(String qq) {
URL url = null;
HttpURLConnection http = null;
InputStream in = null;
try {
url = new URL(WEBXML_QQ + qq);
http = (HttpURLConnection) url.openConnection();
http.connect();
i
Ïà¹ØÎĵµ£º
JavaÍøÂç±à³Ì³õ²½
Kagula
2009-11-23
¹Ø¼ü´Ê
Java Socket DataInputStream DataOutputStream
¸ÅÒª
ʹÓÃJavaͬ²½IOÓ¦ÓóÌÐò¿â£¬ÊµÏÖCS½á¹¹ÍøÂç±à³Ì¡£
ÕýÎÄ
ʹÓÃSocketÀ´½¨Á¢ÍøÂçÁ¬½Ó£¬Ê¹ÓÃDataInputStream¡¢DataOutputStreamÀ´´æÈ¡ÍøÂçÁ÷¡£
¿Í»§¶Ë²¿·Ý
µÚÒ»²½ ......
×÷ÓÃÓò ¹¦ÄÜ ¿ì½Ý¼ü
Îı¾±à¼Æ÷ ²éÕÒÉÏÒ»¸ö Ctrl+Shift+K
Îı¾±à¼Æ÷ ²éÕÒÏÂÒ»¸ö Ctrl+K
È«¾Ö »Ö¸´ÉÏÒ»¸öÑ¡Ôñ Alt+Shift+↓
È«¾Ö ¿ìËÙÐÞÕý Ctrl1+1
È«¾Ö ÄÚÈݸ¨Öú Alt+/
È«¾Ö ÉÏÏÂÎÄÐÅÏ¢ Alt+£¿
Alt+Shift+?
Ctrl+Shift+Space
Java±à¼Æ÷ ÏÔʾ¹¤¾ßÌáʾÃèÊö F2
Java±à¼Æ÷ Ñ¡Ôñ·â×°ÔªËØ Alt+Shi ......
Ò»¡¢Java»ù´¡ÖªÊ¶
1.JavaÓÐÄÇЩ»ù±¾Êý¾ÝÀàÐÍ£¬StringÊDz»ÊÇ»ù±¾Êý¾ÝÀàÐÍ£¬ËûÃÇÓкÎÇø±ð¡£
2.×Ö·û´®µÄ²Ù×÷£º
дһ¸ö·½·¨£¬ÊµÏÖ×Ö·û´®µÄ·´×ª£¬È磺ÊäÈëabc£¬Êä³öcba
дһ¸ö·½·¨£¬ÊµÏÖ×Ö·û´®µÄÌæ»»£¬È磺ÊäÈëbbbwlirbbb£¬Êä³öbbbhhtccc¡£
3.Êý¾ÝÀàÐÍÖ®¼äµÄת»»
ÈçºÎ½«ÊýÖµÐÍ×Ö·ûת»»ÎªÊý×Ö£¨ ......
¶ÓÁÐÊÇÉè¼Æ³ÌÐòÖг£ÓõÄÒ»ÖÖÊý¾Ý½á¹¹¡£ËüÀàËÆÈÕ³£Éú»îÖеÄÅŶÓÏÖÏ󣬲ÉÓÃÒ»ÖÖ±»³ÆÎª
“ÏȽøÏȳö”(FIFO)µÄ´æ´¢½á¹¹¡£Êý¾ÝÔªËØÖ»ÄÜ´Ó¶Óβ½øÈ룬´Ó¶ÓÊ×È¡³ö¡£ÔÚ¶ÓÁÐÖУ¬
Êý¾ÝÔªËØ¿ÉÒÔÈÎÒâÔö¼õ£¬µ«Êý¾ÝÔªËØµÄ´ÎÐò²»»á¸Ä±ä¡£Ã¿µ±ÓÐÊý¾ÝÔªËØ´Ó¶ÓÁÐÖб»È¡³ö£¬
ºóÃæµÄÊý¾ÝÔªËØÒÀ´ÎÏòÇ°ÒÆ¶¯Ò»Î»¡£ËùÒÔ£¬ÈκÎʱºò ......
±¾ÎÄÊÇÓÉJRÖ÷³Öд×÷µÄ¡¶J2SE½ø½×¡·Ò»ÊéµÄ²¿·ÖÕ½ÚÕûÀí¶ø³É£¬¡¶J2SE½ø½×¡·ÕýÔÚд×÷¡¢ÍêÉÆ½×¶Î¡£ÄúÔĶÁºó£¬ÓÐÈκν¨Òé¡¢ÅúÆÀ£¬ÇëºÍÎÒÁªÏµ£¬»òÔÚhttp://www.javaresearch.org/forum/thread.jsp?column=376&thread=7576' target='_blank' class='l2'>Õâ¶ùÁôÑÔ¡£¡¶J2SE½ø½×¡·Ð´×÷ÏîÄ¿×é¸ÐлÄúÔĶÁ±¾ÎÄ¡£
ÔÚµ±½ñÕ ......