exception 'QDB_Exception' with message 'Too many connections' in /back/webroot/citygo.cn/library/db/adapter/mysql.php:73<br />
<br />
#0 /back/webroot/citygo.cn/library/db/table.php(435): QDB_Adapter_Mysql-&gt;connect()<br />
#1 /back/webroot/citygo.cn/library/db/table.php(471): QDB_Table-&gt;setConn(Object(QDB_Adapter_Mysql))<br />
#2 /back/webroot/citygo.cn/library/db/table.php(454): QDB_Table-&gt;_setupConn()<br />
#3 /back/webroot/citygo.cn/library/db/table.php(366): QDB_Table-&gt;init()<br />
#4 /back/webroot/citygo.cn/library/orm/activerecord/meta.php(1301): QDB_Table-&gt;columns()<br />
#5 /back/webroot/citygo.cn/library/orm/activerecord/meta.php(250): QDB_ActiveRecord_Meta-&gt;_init1('City')<br />
#6 /back/webroot/citygo.cn/library/orm/activerecord/meta.php(264): QDB_ActiveRecord_Meta-&gt;__construct('City')<br />
#7 /back/webroot/citygo.cn/www/app/model/city.php(162): QDB_ActiveRecord_Meta::instance('City')<br />
#8 /back/webroot/citygo.cn/www/app/controller/default_controller.php(43): City::find('intercode=?', '021')<br />
#9 [internal function]: Controller_Default-&gt;actionIndex()<br />
#10 /back/webroot/citygo.cn/www/app/controller/abstract.php(64): call_user_func_array(Array, Array)<br />
#11 /back/webroot/citygo.cn/www/app/myapp.php(226): Controller_Abstract-&gt;execute('index', Array)<br />
#12 /back/webroot/citygo.cn/www/public/index.php(14): MyApp-&gt;dispatching()<br />
#13 {main}<pre>
如果要改变对异常的处理，请修改文件 &quot;/back/webroot/citygo.cn/www/app/myapp.php&quot; 的 exception_handler() 方法
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