我在连接数据时，也能连上，并且能把数据读出来。
但是eclipse的控制台里一直都在报错。
刚开始报：Query:com.mysql.jdbc.PreparedStatement@1b71c12: select msgRootId from plugin_auction where orderId=-1 and endDate < '1187076329609 ' and sellType=0---Table 'nihai2007.plugin_auction ' doesn 't existQuery:com.mysql.jdbc.PreparedStatement@1370ab: select msgRootId from plugin_auction where orderId=-1 and endDate < '1187076389796 ' and sellType=0---Table 'nihai2007.plugin_auction ' doesn 't existQuery:com.mysql.jdbc.PreparedStatement@12ad974: select msgRootId from plugin_auction where orderId=-1 and endDate < '1187076450000 ' and sellType=0---Table 'nihai2007.plugin_auction ' doesn 't existQuery:com.mysql.jdbc.PreparedStatement@1b9ef8c: select id from sq_message where color <> ' ' and colorExpire < '1187076500250 '---Table 'nihai2007.sq_message ' doesn 't existQuery:com.mysql.jdbc.PreparedStatement@766186: select id from sq_message where isBold=1 and boldExpire < '1187076500250 '---Table 'nihai2007.sq_message ' doesn 't existexecutePreUpdate:com.mysql.jdbc.PreparedStatement@1752bea: delete from sq_online where staytime < '1187075602250 '---Table 'nihai2007.sq_online ' doesn 't exist
就算我不对程序做任何操作，过上一会它会报下面的错误：
java.sql.SQLException: Table 'nihai2007.sq_online ' doesn 't exist
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2851)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1531)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1622)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2379)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2306)
at com.mysql.jdbc.Statement.executeQuery(Statement.java:1192)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:589)
at org.logicalcobwebs.proxool.ProxyStatement.invoke(ProxyStatement.java:68)
at org.logicalcobwebs.cglib.proxy.Proxy$ProxyImpl$$EnhancerByCGLIB$$930a1e6f.executeQuery( <generated> )
at cn.js.fan.db.Conn.executeQuery(Conn.java:128)
at cn.js.fan.base.ObjectCache.getObjectCount(ObjectCache.java:219)
at com.redmoon.forum.OnlineUserCache.getAllCount(OnlineUserCache.java:27)
at com.redmoon.forum.OnlineUserCache.refreshAll(OnlineUserCache.java:73)
at com.redmoon.forum.OnlineUserDb.refreshOnlineUser(OnlineUserDb.java:77)
at com.redmoon.forum.ForumSchedulerUnit.OnTimer(ForumSchedulerUnit.java:77)
at cn.js.fan.kernel.Scheduler.run(Scheduler.java:64)
我就奇怪了，怎么也找不到问题在哪？
我用的是一个自己写的连接池，连接池的配置如下：
driver =com.mysql.jdbc.Driver
url =jdbc:mysql://localhost:3306/nihai2007?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
user =root
password =root
maxconn =20
------解决方案--------------------
java.sql.SQLException: Table 'nihai2007.sq_online ' doesn 't exist