出错信息：connect database error :Connection refused

出错文件：/www/wwwroot/yinshua.com/framework/base/db/MysqlDriver.php

错误行：185

Trace信息：
#0 /www/wwwroot/yinshua.com/framework/base/db/MysqlDriver.php(203) framework\base\db\MysqlDriver->_connect()
#1 /www/wwwroot/yinshua.com/framework/base/db/MysqlDriver.php(24) framework\base\db\MysqlDriver->_getReadLink()
#2 /www/wwwroot/yinshua.com/framework/base/db/MysqlDriver.php(20) framework\base\db\MysqlDriver->query()
#3 /www/wwwroot/yinshua.com/framework/base/Model.php(76) framework\base\db\MysqlDriver->select()
#4 /www/wwwroot/yinshua.com/app/admin/model/ConfigModel.php(14) framework\base\Model->select()
#5 /www/wwwroot/yinshua.com/app/base/controller/BaseController.php(56) app\admin\model\ConfigModel->getInfo()
#6 /www/wwwroot/yinshua.com/app/base/controller/BaseController.php(43) app\base\controller\BaseController->setCont()
#7 /www/wwwroot/yinshua.com/app/home/controller/SiteController.php(10) app\base\controller\BaseController->__construct()
#8 /www/wwwroot/yinshua.com/framework/base/App.php(41) app\home\controller\SiteController->__construct()
#9 /www/wwwroot/yinshua.com/framework/core.php(97) framework\base\App::run()
#10 /www/wwwroot/yinshua.com/index.php(7) require()