用jsp+ajax实现网页无刷新聊天室，不过是群聊，还没有实现私人聊天功能，我将会尽快的完成其他相关功能-Achieved using jsp+ ajax page refresh-free chat rooms, but a group chat, private chat feature has not been achieved, I will perform other related functions as soon as possible
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002693s ]
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:0.119213s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.006230s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001463s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.011824s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.009285s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001953s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003909s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016814s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001233s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 203631 [ RunTime:0.014971s ]
