无法连接数据库:Connection refused

>  /app/base/lib/db/connections.php:176
#0trigger_error(...string(40) "无法连接数据库:Connection refused" ,'256')connections.php:176
#1base_db_connections->_connect('127.0.0.1','root','Zxcv.690929','fanyi')connections.php:165
#2base_db_connections->_rw_conn()connections.php:150
#3base_db_connections->_ro_conn()connections.php:90
#4base_db_connections->select(...string(74) "SELECT * FROM `sdb_ectools_currency` WHERE `cur_default`='true' LIMIT 0, 1" )connections.php:139
#5base_db_connections->selectlimit(...string(63) "SELECT * FROM `sdb_ectools_currency` WHERE `cur_default`='true'" ,'1','0')connections.php:129
#6base_db_connections->selectrow(...string(63) "SELECT * FROM `sdb_ectools_currency` WHERE `cur_default`='true'" )currency.php:153
#7ectools_mdl_currency->getDefault()currency.php:192
#8ectools_mdl_currency->getFormat()product.php:22
#9b2c_ctl_site_product->__construct(object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(20) "/mnt/wwwroot/app/b2c" ["public_app_dir"]=> string(27) "/mnt/wwwroot/public/app/b2c" ["res_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/statics" ["res_full_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/statics" ["lang_url"]=> string(40) "http://www.forrun.cn/public/app/b2c/lang" ["lang_full_url"]=> string(40) "http://www.forrun.cn/public/app/b2c/lang" ["widgets_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/widgets" ["widgets_full_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/widgets" ["res_dir"]=> string(35) "/mnt/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(35) "/mnt/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(32) "/mnt/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))kernel.php:341
#10kernel::single('b2c_ctl_site_product',object(appobject(app)#10 (22) { ["__render":"app":private]=> NULL ["__router":"app":private]=> NULL ["__define":"app":private]=> NULL ["__taskrunner":"app":private]=> NULL ["__checkVaryArr":"app":private]=> array(0) { } ["__langPack":"app":private]=> array(0) { } ["__installed":"app":private]=> NULL ["__actived":"app":private]=> NULL ["__setting":"app":private]=> NULL ["app_id"]=> string(3) "b2c" ["app_dir"]=> string(20) "/mnt/wwwroot/app/b2c" ["public_app_dir"]=> string(27) "/mnt/wwwroot/public/app/b2c" ["res_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/statics" ["res_full_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/statics" ["lang_url"]=> string(40) "http://www.forrun.cn/public/app/b2c/lang" ["lang_full_url"]=> string(40) "http://www.forrun.cn/public/app/b2c/lang" ["widgets_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/widgets" ["widgets_full_url"]=> string(43) "http://www.forrun.cn/public/app/b2c/widgets" ["res_dir"]=> string(35) "/mnt/wwwroot/public/app/b2c/statics" ["widgets_dir"]=> string(35) "/mnt/wwwroot/public/app/b2c/widgets" ["lang_dir"]=> string(32) "/mnt/wwwroot/public/app/b2c/lang" ["_lang_resource"]=> NULL } ))app.php:74
#11app->controller('site_product')router.php:600
#12site_router->default_dispatch()router.php:490
#13site_router->dispatch('product-43988.html')kernel.php:165
#14kernel::boot()index.php:5