Open Source Thoughts

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Open Source Thoughts The more work you have done, the more you are allowed to do. Do One Thing, and Do It Well. Ê×Ò³ OpenSource (21) Java (4) XP&AM (2) Wireless (0) JFox (4) JFoxSOAF (2) ·ÖÒ³: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] ×îºóÒ³ 2004-09-28 13:31 EJB or Without EJB EJBµÄÊ¹ÓÃ ÎÒ¼È×ö¹ıÊ¹ÓÃEJB½øĞĞ¿ª·¢µÄÏîÄ¿£¬Ò²²ÉÓÃ¹ıÇáÁ¿¼¶·½Ê½¿ª·¢µÄÏîÄ¿£¬ÔÚÃ»ÓĞ¾ÑéµÄÊ±ºòÊ¹ÓÃEJBÊÇÓ¦ÎªEJB¿´ÉÏÈ¥ÄÜ¸øÒ»¸öÏîÄ¿Ìá¹©¸ü¿íÀ«µÄÀ©Õ¹¿Õ¼äºÍ¿É¿¿±£ÕÏ¡£ÓĞ¾ÑéµÄÊ±ºò¾Í»á¸ù¾İÊµ¼ÊÏîÄ¿µÄ¹æÄ££¬Ê±¼ä£¬ÈËÔ±µÈÖÚ¶àÒòËØºÍĞèÒªÀ´Ñ¡ÔñÊÇ·ñÊ¹ÓÃEJB£¬Ê²Ã´ÀàĞÍµÄEJB¡£Ê×ÏÈĞèÒªÃ÷ÎúµÄÒ»¸ö¸ÅÄî¾ÍÊÇ EJB != J2EE. EJBÖ®Ö»ÊÇJ2EEÖĞµÄÒ»¸ö²¿·Ö¶øÒÑ¡£ J2EE°üº¬ºÜ¶àµÄ¼¼Êõ£¬JSP, Servlet, JMS, JDBC, JAAS, JMX, ºÍEJBs. J2EEÍ¬Ê±Ò²°üÀ¨ÁËÈçºÎÒ»ÆğÊ¹ÓÃÕâĞ©¼¼ÊõÀ´¹¹½¨½â¾ö·½°¸µÄÖ¸µ¼ºÍÄ£Ê½(ÈçJ2EE Core Design Pattern). ËùÒÔÊ¹ÓÃJ2EE±¾Éí¶Ô¿ª·¢ÈËÔ±ÊÇÓÉÒ»¶¨µÄ¼¼ÊõÒªÇóµÄ¡£ Èç¹ûÄãÔÚ²»ĞèÒªEJBµÄµØ·½Ê¹ÓÃËü£¬ ËüÍùÍù»á¶ÔÄãµÄÓ¦ÓÃµÄĞÔÄÜ´øÀ´Ò»¶¨µÄËğºÄ¡£ÓÉÓÚ±¾ÉíµÄ¶îÍâËğºÄ£¬Ëü»áÓëÄãµÄÓ¦ÓÃ½øĞĞ×ÊÔ´µÄ¾ºÕù£¬°üÀ¨CPU, ÄÚ´æµÈµÈ¡£ Plain Old Java Objects, »òÕßËµ½Ğ POJOs, ÔÚWebÓ¦ÓÃÖĞ¶ÔÓÚEJBÊÇÒ»¸ö²»´íµÄÇáÁ¿¼¶Ìæ´ú·½°¸£¬ µ«ÊÇ£¬Èç¹ûÄãµÄÓ¦ÓÃÏîÄ¿¶Ô¼¯Èº£¬¸ß¿É¿¿ĞÔ£¬µÈÆóÒµ¼¶ÔËËãµÄÒªÇó±È½Ï¸ß£¬Ó¦ÓÃ·şÎñÆ÷¿ÉÒÔÊÇÒ»¸ö²»´íµÄÑ¡Ôñ£¬ÔÚÒ»°ãµÄWebÓ¦ÓÃÖĞ£¬Èç¹ûÄÚÈİ·¢²¼£¬¹ÜÀíµÈµÈ£¬ Ò»¸öÇáÁ¿¼¶µÄWeb·şÎñÆ÷»òĞí¾Í¿ÉÒÔÂú×ãĞèÇó¡£ ËùÒÔ×îºóµÄÑ¡Ôñ»¹ÊÇÒÔĞèÇóÎªÖØ£¬²»ÒªÎªÁËÊ¹ÓÃ¼¼Êõ¶øÊ¹ÓÃ¼¼Êõ¡£ Êı¾İ·ÃÎÊ ´ó¶àÊıµÄWebÓ¦ÓÃ³ıÁËÇ°¶ËµÄÒ³Ãæ¿ØÖÆÍâ£¬Ö÷ÒªµÄÎÊÌâµÄ½¹µã¾Í¼¯ÖĞÔÚÁËÊı¾İ·ÃÎÊ£¬Ó¦ÓÃ±¾ÉíµÄÖØµãÒ²¾ÍÊÇÔÚÊı¾İ£¬Èç¹û¶ÔÊı¾İ½øĞĞÁË±È½ÏºÃµÄ¹ÜÀí£¬Ç°¶ËµÄÕ¹ÏÖÈçºÎÇ§±äÍò»¯Ò²ÎŞ·Á¡£ ÔÚÒ»¸öÏà¶Ô¸´ÔÓµÄÓ¦ÓÃÏµÍ³ÖĞ£¬Êı¾İµÄ¹ØÏµÍùÍùÊÇ¸´ÔÓµÄ£¬¿ÉÄÜÆäÖĞÓĞ60%ÊÇ¼òµ¥µÄCRUD²Ù×÷£¬¿ÉÄÜÓĞ40%ÊÇ¸´ÔÓµÄ¹ØÁª²Ù×÷£¬´ÓÉè¼ÆÖ®³õ£¬¿ÉÄÜ¾ÍĞèÒªÀ´¿¼ÂÇÊÇ´Ó¶ÔÏóµ½¹ØÏµµÄÉè¼Æ£¬»¹ÊÇ´Ó¹ØÏµµ½¶ÔÏóµÄÉè¼Æ¡£´ÓÎÒ¸öÈËµÄ¹ÛµãÀ´¿´£¬Á½ÕßÊÇĞèÒªÍ¬Ê±¿¼ÂÇµÄ£¬ ±ÈÈçËµÓĞĞ©Ó¦ÓÃµÄ²¿·ÖÖ»ÒªÇó¸ßĞ§ÂÊµÄÊı¾İ´æ´¢ºÍ´«µİ£¬Õâ¸öÊ±ºòÎÒÃÇ¿ÉÄÜ¾ÍĞèÒª¶ÔÊı¾İ¿â±í½á¹¹½øĞĞºÜ¶àÌØÊâµÄÉè¼Æ£¬ÉõÖÁÀûÓÃµ½Êı¾İ¿âÌØÓĞµÄÌØĞÔÀ´Ìá¸ßĞÔÄÜ£¬ ÕâÖÖÇé¿öÏÂÎÒÃÇ¾ÍÒªÒÔ¹ØÏµÎªÖ÷£¬ËäÈ»×îÖÕÊÇÓÃ¹ıJava¶ÔÏóÈ¥²Ù×÷Êı¾İ£¬µ«±¾ÉíµÄÖØµã»¹ÊÇÔÚÊı¾İ¡£ I. Ğ¡ĞÍµÄÓ¦ÓÃ Controller --> Business Services Layer (POJOs) --> Data Access Layer II . ´óĞÍµÄÓ¦ÓÃ Controller --> Session Facade --> Business Services Layer (POJOs) --> Data Access Layer Èç¹ûÄãÔÚÇ°ÆÚÓ¦ÓÃµÄ¹æÄ£»¹²»´óµÄÊ±ºò¿ªÓÃIµÄ·½Ê½½øĞĞÒµÎñÂß¼ÒÔ¼°Êı¾İµÄ·â×°£¬°ÑBusiness Service×÷ÎªÒ»¸öµ¥¶ÀµÄ²ã´Î·â×°ÆğÀ´£¬µ±ÄãµÄÒµÎñ¹æÄ£Ôö³¤£¬ĞèÒªÊ¹ÓÃµ½Ó¦ÓÃ·şÎñÆ÷µÄÊ±ºò£¬ÄãÖ»ĞèÒªÔÚÇ°Ãæ¼ÓÒ»²ãEJB(Session Facade)£¬×ª»¯³ÉÄ£ĞÍII, ¾Í¿ÉÒÔºÜÈİÒ×µÄ°Ñ¾ÉµÄÓ¦ÓÃÇ¨ÒÆµ½ĞÂµÄÌåÏµÏÂ£¬¶ø²»ÖÁÓÚÒªÖØĞÂĞŞ¸ÄÔÓĞµÄÒµÎñ²ã£¬»òÕßÕû¸öÖØĞ´¡£ ÔÚData Access Layer Äã¿ÉÒÔÊ¹ÓÃO/R ¹¤¾ßÀ´Ìá¹©¶ÔÊı¾İµÄÍ¸Ã÷·ÃÎÊÄÜÁ¦£¬Í¬Ê±¶ÔÓÚ¸´ÔÓµÄ¹ØÏµ´¦ÀíÖ±½Ó²ÉÓÃJDBC²Ù×÷µÄ·½Ê½£¬¶¼ÊÇ¿ÉÒÔµÄ¡£ ÏÂÃæµÄ·½Ê½»òĞíÊÇÒ»¸ö¶¼ÄÜ¹»Âú×ãÒªÇóµÄ·½°¸ ²Î¿¼: JPetstore 4.0 Ìá¹©ÁËÒ»¸ö²»´íµÄBusiness Service LayerµÄÉè¼Æ·½°¸ founder_chen @ 13:31 | ÔÄ¶ÁÈ«ÎÄ | ÆÀÂÛ(0) | ÒıÓÃTrackback(0) | ±à¼ 2004-09-23 22:20 What's going on with requirement? funny requirement picture from my friend founder_chen @ 22:20 | ÔÄ¶ÁÈ«ÎÄ | ÆÀÂÛ(2) | ÒıÓÃTrackback(0) | ±à¼ ÈÕÀú 2004 Äê 11 ÔÂ Sun Mon Tue Wen Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ×î½ü¸üĞÂ Presentation at 2th China Software Conference Go BEA dev2dev Chinese Day JFoxSOAF 1.0-M1 Release My Paper Published Meet Huihoo In BeiJing, :) The Next Big Thing - Open Source ESB Simple Service-Oriented Motif Service-Oriented Application Framework Enterprise Open Source Reference Architecture OpenSource Dev Tools & Simple Practice ×îĞÂÆÀÂÛ Vege : ºÇºÇºÇ£¬ÊÂÒµÕæÊÇ. ±ùÔÆ : ÔùÆ±ÔùÆ±~~ ¸ãÒ»Ğ. toidi_asdd : Congratulate!!!. founder_chen : ÎÒÏÖÔÚ¸Õµ½±±¾©2. ±ùÔÆ : MSN:icecloud@sin. founder_chen : ²»»á°É£¬ÔÚhuihoo. ±ùÔÆ : 55555,ÔõÃ´²»ÔçÍ¨. dreamhead : ÔËÓÃSpringÒ²ÓĞÒ». Vege : àÀàÀ£¬ÕâÖÖÕñ·ÜµÄ. founder_chen : ÎÒÒÑ¾°ÑÄãµÄÓÊ¼ş. ´æµµ Open Source Thoughts (EN) Huihoo Enterprise Open Source Free Software Foundation Huihoo Open Source Middleware The ServerSide.COM JFox Live ! ÎÒµÄÁ´½Ó ³ÁË¼Õß ÃÎÏë·ç±© Í¸Ã÷Ë¼¿¼ ÎŞÑÄ×Ó ±ùÔÆ XSource Sharing Random Thoughts Enterprise J2ME Richard Monson-Haefel Pyrasun Alexwinston Enterprise Open Source Bill Day Tug Cameron javangelist Lawrence Lessig Michael Chen Talk2TheWorld SourceBeta The Aspects Blog Joe Walnes PragDave Architecture Corner Adam Bosworth James Strachan James Gosling Jian Hua Rapid Chaunt Travel Simon Brown Debu Panda Raible Design Robert C. Martin Ted Neward