diff --git a/src/Pool/Config/DbSlavePoolConfig.php b/src/Pool/Config/DbSlavePoolConfig.php
index d08d587..ee54e9f 100644
--- a/src/Pool/Config/DbSlavePoolConfig.php
+++ b/src/Pool/Config/DbSlavePoolConfig.php
@@ -5,8 +5,6 @@
 use Swoft\Bean\Annotation\Bean;
 use Swoft\Bean\Annotation\Value;
 use Swoft\Db\Driver\Driver;
-use Swoft\Sg\BalancerSelector;
-use Swoft\Sg\ProviderSelector;
 
 /**
  * the slave config of database
@@ -85,7 +83,7 @@ class DbSlavePoolConfig extends DbPoolProperties
      * @Value(name="${config.db.slave.balancer}", env="${DB_SLAVE_BALANCER}")
      * @var string
      */
-    protected $balancer = BalancerSelector::TYPE_RANDOM;
+    protected $balancer = 'random';
 
     /**
      * the default provider is consul provider
@@ -93,7 +91,7 @@ class DbSlavePoolConfig extends DbPoolProperties
      * @Value(name="${config.db.slave.provider}", env="${DB_SLAVE_PROVIDER}")
      * @var string
      */
-    protected $provider = ProviderSelector::TYPE_CONSUL;
+    protected $provider = 'consul';
 
     /**
      * the default driver is mysql
diff --git a/test/Testing/Pool/DbEnvPoolConfig.php b/test/Testing/Pool/DbEnvPoolConfig.php
index fc62e5a..95bd91d 100644
--- a/test/Testing/Pool/DbEnvPoolConfig.php
+++ b/test/Testing/Pool/DbEnvPoolConfig.php
@@ -4,98 +4,97 @@
 
 use Swoft\Bean\Annotation\Bean;
 use Swoft\Bean\Annotation\Value;
-use Swoft\Sg\BalancerSelector;
 use Swoft\Pool\PoolProperties;
-use Swoft\Sg\ProviderSelector;
 
 /**
  * db env pool config
- *
  * @Bean()
- * @uses      DbEnvPoolConfig
- * @version   2017年12月18日
- * @author    stelin <phpcrazy@126.com>
- * @copyright Copyright 2010-2016 swoft software
- * @license   PHP Version 7.x {@link http://www.php.net/license/3_0.txt}
  */
 class DbEnvPoolConfig extends PoolProperties
 {
     /**
      * the name of pool
-     *
      * @Value(env="${DB_NAME}")
+     *
      * @var string
      */
-    protected $name = "";
+    protected $name = '';
 
     /**
      * the maximum number of idle connections
-     *
      * @Value(env="${DB_MAX_IDEL}")
+     *
      * @var int
      */
     protected $maxIdel = 6;
 
     /**
      * the maximum number of active connections
-     *
      * @Value(env="${DB_MAX_ACTIVE}")
+     *
      * @var int
      */
     protected $maxActive = 50;
 
     /**
      * the maximum number of wait connections
-     *
      * @Value(env="${DB_MAX_WAIT}")
+     *
      * @var int
      */
     protected $maxWait = 100;
 
     /**
      * the time of connect timeout
-     *
      * @Value(env="${DB_TIMEOUT}")
+     *
      * @var int
      */
     protected $timeout = 200;
 
     /**
      * the addresses of connection
-     *
      * <pre>
      * [
      *  '127.0.0.1:88',
      *  '127.0.0.1:88'
      * ]
      * </pre>
-     *
      * @Value(env="${DB_URI}")
+     *
      * @var array
      */
     protected $uri = [];
 
     /**
      * whether to user provider(consul/etcd/zookeeper)
-     *
      * @Value(env="${DB_USE_PROVIDER}")
+     *
      * @var bool
      */
     protected $useProvider = false;
 
     /**
      * the default balancer is random balancer
-     *
      * @Value(env="${DB_BALANCER}")
+     *
      * @var string
      */
-    protected $balancer = BalancerSelector::TYPE_RANDOM;
+    protected $balancer = 'random';
 
     /**
      * the default provider is consul provider
-     *
      * @Value(env="${DB_PROVIDER}")
+     *
      * @var string
      */
-    protected $provider = ProviderSelector::TYPE_CONSUL;
+    protected $provider = 'consul';
+
+    /**
+     * @return int
+     */
+    public function getMaxIdel(): int
+    {
+        return $this->maxIdel;
+    }
 }
diff --git a/test/Testing/Pool/DbPptPoolConfig.php b/test/Testing/Pool/DbPptPoolConfig.php
index 00b6bcb..19acd9e 100644
--- a/test/Testing/Pool/DbPptPoolConfig.php
+++ b/test/Testing/Pool/DbPptPoolConfig.php
@@ -4,98 +4,99 @@
 
 use Swoft\Bean\Annotation\Bean;
 use Swoft\Bean\Annotation\Value;
-use Swoft\Sg\BalancerSelector;
 use Swoft\Pool\PoolProperties;
-use Swoft\Sg\ProviderSelector;
 
 /**
  * db properties pool config
- *
  * @Bean()
- * @uses      DbPptPoolConfig
- * @version   2017年12月18日
- * @author    stelin <phpcrazy@126.com>
- * @copyright Copyright 2010-2016 swoft software
- * @license   PHP Version 7.x {@link http://www.php.net/license/3_0.txt}
  */
 class DbPptPoolConfig extends PoolProperties
 {
     /**
      * the name of pool
-     *
      * @Value(name="${config.db.master.name}")
+     *
      * @var string
      */
-    protected $name = "";
+    protected $name = '';
 
     /**
      * the maximum number of idle connections
-     *
      * @Value(name="${config.db.master.maxIdel}")
+     *
      * @var int
      */
     protected $maxIdel = 6;
 
     /**
      * the maximum number of active connections
-     *
      * @Value(name="${config.db.master.maxActive}")
+     *
      * @var int
      */
     protected $maxActive = 50;
 
     /**
      * the maximum number of wait connections
-     *
      * @Value(name="${config.db.master.maxWait}")
+     *
      * @var int
      */
     protected $maxWait = 100;
 
     /**
      * the time of connect timeout
-     *
      * @Value(name="${config.db.master.timeout}")
+     *
      * @var int
      */
     protected $timeout = 200;
 
     /**
      * the addresses of connection
-     *
      * <pre>
      * [
      *  '127.0.0.1:88',
      *  '127.0.0.1:88'
      * ]
      * </pre>
-     *
      * @Value(name="${config.db.master.uri}")
+     *
      * @var array
      */
     protected $uri = [];
 
     /**
      * whether to user provider(consul/etcd/zookeeper)
-     *
      * @Value(name="${config.db.master.useProvider}")
+     *
      * @var bool
      */
     protected $useProvider = false;
 
     /**
      * the default balancer is random balancer
-     *
      * @Value(name="${config.db.master.balancer}")
+     *
      * @var string
      */
-    protected $balancer = BalancerSelector::TYPE_RANDOM;
+    protected $balancer = 'random';
 
     /**
      * the default provider is consul provider
-     *
      * @Value(name="${config.db.master.provider}")
+     *
      * @var string
      */
-    protected $provider = ProviderSelector::TYPE_CONSUL;
+    protected $provider = 'consul';
+
+    /**
+     * @return int
+     */
+    public function getMaxIdel(): int
+    {
+        return $this->maxIdel;
+    }
+
+
 }
diff --git a/test/Testing/Pool/DbSlaveEnvPoolConfig.php b/test/Testing/Pool/DbSlaveEnvPoolConfig.php
index 0ee8248..4f3034b 100644
--- a/test/Testing/Pool/DbSlaveEnvPoolConfig.php
+++ b/test/Testing/Pool/DbSlaveEnvPoolConfig.php
@@ -4,98 +4,97 @@
 
 use Swoft\Bean\Annotation\Bean;
 use Swoft\Bean\Annotation\Value;
-use Swoft\Sg\BalancerSelector;
 use Swoft\Pool\PoolProperties;
-use Swoft\Sg\ProviderSelector;
 
 /**
  * db slave  env pool config
- *
  * @Bean()
- * @uses      DbSlaveEnvPoolConfig
- * @version   2017年12月18日
- * @author    stelin <phpcrazy@126.com>
- * @copyright Copyright 2010-2016 swoft software
- * @license   PHP Version 7.x {@link http://www.php.net/license/3_0.txt}
  */
 class DbSlaveEnvPoolConfig extends PoolProperties
 {
     /**
      * the name of pool
-     *
      * @Value(env="${DB_SLAVE_NAME}")
+     *
      * @var string
      */
-    protected $name = "";
+    protected $name = '';
 
     /**
      * the maximum number of idle connections
-     *
      * @Value(env="${DB_SLAVE_MAX_IDEL}")
+     *
      * @var int
      */
     protected $maxIdel = 6;
 
     /**
      * the maximum number of active connections
-     *
      * @Value(env="${DB_SLAVE_MAX_ACTIVE}")
+     *
      * @var int
      */
     protected $maxActive = 50;
 
     /**
      * the maximum number of wait connections
-     *
      * @Value(env="${DB_SLAVE_MAX_WAIT}")
+     *
      * @var int
      */
     protected $maxWait = 100;
 
     /**
      * the time of connect timeout
-     *
      * @Value(env="${DB_SLAVE_TIMEOUT}")
+     *
      * @var int
      */
     protected $timeout = 200;
 
     /**
      * the addresses of connection
-     *
      * <pre>
      * [
      *  '127.0.0.1:88',
      *  '127.0.0.1:88'
      * ]
      * </pre>
-     *
      * @Value(env="${DB_SLAVE_URI}")
+     *
      * @var array
      */
     protected $uri = [];
 
     /**
      * whether to user provider(consul/etcd/zookeeper)
-     *
      * @Value(env="${DB_SLAVE_USE_PROVIDER}")
+     *
      * @var bool
      */
     protected $useProvider = false;
 
     /**
      * the default balancer is random balancer
-     *
      * @Value(env="${DB_SLAVE_BALANCER}")
+     *
      * @var string
      */
-    protected $balancer = BalancerSelector::TYPE_RANDOM;
+    protected $balancer = 'random';
 
     /**
      * the default provider is consul provider
-     *
      * @Value(env="${DB_SLAVE_PROVIDER}")
+     *
      * @var string
      */
-    protected $provider = ProviderSelector::TYPE_CONSUL;
+    protected $provider = 'consul';
+
+    /**
+     * @return int
+     */
+    public function getMaxIdel(): int
+    {
+        return $this->maxIdel;
+    }
 }
diff --git a/test/Testing/Pool/DbSlavePptConfig.php b/test/Testing/Pool/DbSlavePptConfig.php
index 915e71e..48f474a 100644
--- a/test/Testing/Pool/DbSlavePptConfig.php
+++ b/test/Testing/Pool/DbSlavePptConfig.php
@@ -4,98 +4,97 @@
 
 use Swoft\Bean\Annotation\Bean;
 use Swoft\Bean\Annotation\Value;
-use Swoft\Sg\BalancerSelector;
 use Swoft\Pool\PoolProperties;
-use Swoft\Sg\ProviderSelector;
 
 /**
  * db salve properties pool config
- *
  * @Bean()
- * @uses      DbSlavePptConfig
- * @version   2017年12月18日
- * @author    stelin <phpcrazy@126.com>
- * @copyright Copyright 2010-2016 swoft software
- * @license   PHP Version 7.x {@link http://www.php.net/license/3_0.txt}
  */
 class DbSlavePptConfig extends PoolProperties
 {
     /**
      * the name of pool
-     *
      * @Value(name="${config.db.slave.name}")
+     *
      * @var string
      */
-    protected $name = "";
+    protected $name = '';
 
     /**
      * the maximum number of idle connections
-     *
      * @Value(name="${config.db.slave.maxIdel}")
+     *
      * @var int
      */
     protected $maxIdel = 6;
 
     /**
      * the maximum number of active connections
-     *
      * @Value(name="${config.db.slave.maxActive}")
+     *
      * @var int
      */
     protected $maxActive = 50;
 
     /**
      * the maximum number of wait connections
-     *
      * @Value(name="${config.db.slave.maxWait}")
+     *
      * @var int
      */
     protected $maxWait = 100;
 
     /**
      * the time of connect timeout
-     *
      * @Value(name="${config.db.slave.timeout}")
+     *
      * @var int
      */
     protected $timeout = 200;
 
     /**
      * the addresses of connection
-     *
      * <pre>
      * [
      *  '127.0.0.1:88',
      *  '127.0.0.1:88'
      * ]
      * </pre>
-     *
      * @Value(name="${config.db.slave.uri}")
+     *
      * @var array
      */
     protected $uri = [];
 
     /**
      * whether to user provider(consul/etcd/zookeeper)
-     *
      * @Value(name="${config.db.slave.useProvider}")
+     *
      * @var bool
      */
     protected $useProvider = false;
 
     /**
      * the default balancer is random balancer
-     *
      * @Value(name="${config.db.slave.balancer}")
+     *
      * @var string
      */
-    protected $balancer = BalancerSelector::TYPE_RANDOM;
+    protected $balancer = 'random';
 
     /**
      * the default provider is consul provider
-     *
      * @Value(name="${config.db.slave.provider}")
+     *
      * @var string
      */
-    protected $provider = ProviderSelector::TYPE_CONSUL;
+    protected $provider = 'consul';
+
+    /**
+     * @return int
+     */
+    public function getMaxIdel(): int
+    {
+        return $this->maxIdel;
+    }
 }