Too many connections

FILE: D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Db.class.php 　LINE: 162

[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Db.class.php (162) DbMysql->connect()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Driver\Db\DbMysql.class.php (94) Db->initConnect()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Driver\Db\DbMysql.class.php (213) DbMysql->query(SHOW COLUMNS FROM `tp_article`)
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Model.class.php (135) DbMysql->getFields(tp_article)
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Model.class.php (123) Model->flush()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Model.class.php (1176) Model->_checkTableInfo()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Model.class.php (98) Model->db(0, )
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Common\common.php (294) Model->__construct(article, , )
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\Home\Lib\Action\CommonAction.class.php (245) M(article)
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\Home\Lib\Action\CommonAction.class.php (20) CommonAction->removeSql()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\Home\Lib\Action\HotAction.class.php (9) CommonAction->__construct()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Common\common.php (321) HotAction->__construct()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\App.class.php (103) A(Hot)
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\App.class.php (207) App::exec()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Lib\Core\Think.class.php (39) App::run()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\Common\runtime.php (242) Think::start()
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\ThinkPHP\ThinkPHP.php (30) require(D:\jiacheng_test\newJiacheng\ThinkPHP\Common\runtime.php)
[25-08-08 01:18:08] D:\jiacheng_test\newJiacheng\index.php (26) require(D:\jiacheng_test\newJiacheng\ThinkPHP\ThinkPHP.php)