这个实例实现了加入和离开组播组、在组播组中发送及接收数据、利用组播实现时间服务器、利用组播实现网络教学功能-this example realized join and leave multicast group, the multicast group to send and receive data and the use of time-servers multicast using multicast network teaching function
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java组播编程实例 WhiteBoard time SendAndRecieveData join-leaveMulticastGroup
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001733s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.102133s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001229s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002435s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001243s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003908s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001058s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003529s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014905s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001379s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 318462 [ RunTime:0.001206s ]
