用ExtJS做的一个网页聊天工具，采用struts1.2 ，SqlServer2005，这是一个半成品，仅仅实现了
文字聊天功能，有兴趣的朋友可以研究研究。
-ExtJS to do with a website chat tool, using struts1.2, SqlServer2005, this is a semi-finished goods, realize only text chat, friends who are interested can study the research.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002241s ]
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:0.094700s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002312s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001948s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002107s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003720s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002149s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003457s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014911s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002147s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 204134 [ RunTime:0.005430s ]
