配置中心读取配置支持默认值和返回类型

src/Common/Config/CfgCenter.php

@@ -17,9 +17,26 @@ class CfgCenter
      *  var_dump($cfgdata->Weapp->Region); // 输出：ap-shanghai
      * 
      * @param string $keyStr
+     * @param string $default 默认返回值
+     * @param int $retype retype==1返回对象，retype==2返回数组
      * @return mixed
      */
-    public static function get($keyStr)
+    public static function get($keyStr, $default='', $retype=1)
+    {
+        $data = self::_get($keyStr);
+        if($data == '') {
+            return $default;
+        }
+        if($retype != 1) { // retype==1返回对象，retype==2返回数组
+            $dataArr = json_decode($data, true);
+            if(is_array($dataArr)) {
+                return $dataArr;
+            }
+        }
+        return $data;
+    }
+
+    private static function _get($keyStr)
     {
         $keyArr = self::parseKeyStr($keyStr);
         $rkey = implode(":", $keyArr);
@@ -48,7 +65,9 @@ class CfgCenter
     {
         $keyArr = self::parseKeyStr($keyStr);
         $name = array_shift($keyArr);
-        $result = self::dbConnect()->select("config", ['name','value'], ['name'=>$name]);
+        $dbConn = self::dbConnect();
+        $result = $dbConn->select("config", ['name','value'], ['name'=>$name]);
+        $dbConn->action(function($dbConn){}); 
         if(!isset($result[0]['value'])) {
             return;
         }