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±¾¿Æ±ÏÒµÂÛÎÄ·¶ÎÄ ÕªÒª »¥ÁªÍøµ®ÉúÓÚ´«Í³µÄµç»°ÍøÂ磬ͨѶ½»Á÷¿ÉÒÔ˵ÊÇ»¥ÁªÍøÌìÈ»µÄÓ¦ÓÃÖ®Ò»¡£InternetÊÇÄ¿Ç°ÊÀ½çÉÏ×î´óµÄ¼ÆËã»ú»¥ÁªÍøÂ磬Ëü±é²¼È«Çò£¬½«ÊÀ½ç¸÷µØ¸÷ÖÖ¹æÄ£µÄÍøÂçÁ¬½Ó³ÉÒ»¸öÕûÌå¡£½üÄêÀ´¼ÆËã»ú¼¼ÊõµÄ¿ìËÙ·¢Õ¹£¬ÌرðÊǼÆËã»úÍøÂçµÄ·¢Õ¹£¬Ô½À´Ô½Éî¿ÌµÄ¸Ä±äÁËÈËÃÇÉú»îµÄ·½·½ÃæÃæ¡£ ±¾ÂÛÎÄʹÓÃJava.net°üºÍJava. sound°üÌṩµÄÀàºÍ½Ó¿Ú£¬ÔÚNT 4.0 ÍøÂç»·¾³£¨TCP/IP£©ÏÂʹÓÃJDK5.0£¬Êý¾Ý¿âʹÓÃSQL Server£¬¿ª·¢ÁËÒ»¿î¼´Ê±Í¨Ñ¶Èí¼þ¡°I Talk¡±¡£¸ÃÈí¼þ·ÖΪ¿Í»§¶ËÓë·þÎñÆ÷¶ËÁ½¸ö²¿·Ö£¬¿Í»§¶Ë¾ßÓÐÒ»°ãͨÐÅÈí¼þµÄ¹¦ÄÜ£¬°üÀ¨£ºµã¶ÔµãµÄÎÄ×ÖÁÄÌ칦ÄÜ¡¢Îļþ´«Ê书ÄÜ¡¢¼´Ê±ÓïÒôͨѶ¹¦ÄÜ¡£·þÎñÆ÷¶ËÖ÷ÒªÌṩÐÂÓû§µÄÕʺÅ×¢²á¹¦ÄÜ£¬Óû§µÇ¼µÄÕʺÅÃûÓëÃÜÂëÑéÖ¤¹¦ÄÜ¡£ ¹Ø¼ü´Ê: Java£»I Talk£»¼´Ê±Í¨Ñ¶£»TCP/IP ABSTRACT Internet was born in the traditional telephone network while communication exchange can be said of the Internet natural one. Internet is now the world's largest computer Internet, it spread globally, of all sizes around the world connects to the network as a whole. In recent years, computer technology is developing rapidly, in particular the development of computer networks, increasingly profound changes in all aspects of people's lives. This paper takes use of the class and interface of Java.net packets and Java. Sound packet, In NT 4.0 network (TCP / IP) using JDK5.0. SQL Server database developed instant communications software "I Talk." The software is divided into two parts of client and server, the client has a general communications software functions, including: point-to-point text chat function, file transfer function£¬instant voice communications function. The server provides new user account registration function, and the user account name login and password verification function. Keywords: Java; I Talk; Instant communication; TCP / IP Ŀ¼ ÕªÒªI ABSTRACTII µÚ1Õ ÒýÑÔ1 1.1 ±³¾°1 1.1.1 ¼´Ê±Í¨Ñ¶µÄ±³¾°1 1.1.2¼´Ê±Í¨Ñ¶ÓëJAVA1 1.2 ¼´Ê±Í¨Ñ¶2 1.2.1 ·¢Õ¹Ç°¾°2 1.2.2 Eclipse¿ª·¢Æ½Ì¨¼ò½é2 1.3 ±¾¿ÎÌâÖ÷Òª¹¤×÷4 µÚ2Õ JavaÍøÂç±à³Ì½éÉÜ5 2.1 JavaÓïÑÔµÄÌØÐÔ5 2.2 ´«Êä¿ØÖÆЭÒé7 2.2.1 TCP/IPЭÒé7 2.2.2 TCPÓëUDP8 2.2.3 ʹÓö˿ÚÔÚÓ¦ÓóÌÐòÖ®¼äͨÐÅ10 2.3 Java Socket11 2.3.1 Java Socket¼ò½é11 2.3.2 Java Socket´«Êäģʽ11 2.4 Ë«·½Ö®¼äµÄÍøÂçÁ¬½Ó12 2.4.1 ʹÓÃJava¿ØÖÆUDPЭÒé13 2.4.2 ÔÚJavaÖвÙ×÷UDP13 µÚ3Õ ¿Í»§¶ËµÄÐèÇó·ÖÎöÓë×ÜÌåÉè¼Æ15 3.1ÐèÇó·ÖÎö15 3.1.1¹¦ÄÜÐèÇó15 3.1.2 ¼¼ÊõÄѵã15 3.2 ×ÜÌåÉè¼Æ16 3.2.1 ϵͳ½á¹¹Éè¼Æ16 3.2.2 ϵͳ¹¦ÄÜÄ£¿éÉè¼Æ17 µÚ4Õ ÏêϸÉè¼Æ19 4.1 Ö÷Òª¹¦ÄÜÄ£¿é19 4.1.1 ¿Í»§¶ËµÇ½19 4.1.2 ÎÄ×ÖÁÄÌì21 4.1.3Îļþ´«Êä22 4.1.4 ÓïÒôÁÄÌì22 4.2 ʵÏÖÓïÒôÁÄÌìµÄÖ÷ÒªÀà23 4.2.1 Ö÷Òª¹¦ÄÜÀàÖеÄJava Sound API23 4.3 ϵͳµÄʵÏÖ26 4.3.1 ¿Í»§¶Ë26 µÚ5Õ Ö÷Òª¹¦ÄÜÄ£¿é²âÊÔ32 5.1 Óû§µÇ½ģ¿é²âÊÔ32 5.2 ÎÄ×ÖÁÄÌìÄ£¿é²âÊÔ32 5.3Îļþ´«ÊäÄ£¿é²âÊÔ33 5.4 ÓïÒôÁÄÌìÄ£¿é²âÊÔ33 µÚ6Õ ½áÊøÓï35 ÖÂл36 ²Î¿¼ÎÄÏ×37
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