优化 API 集的请求实例，每个API集将只有一个实例

src/base/Client.php

@@ -9,7 +9,7 @@
 namespace internalApi\base;
 
 
-abstract class Client
+class Client
 {
 
 	public $debug = false;
@@ -22,23 +22,39 @@ abstract class Client
 	protected static $instance = [];
 	protected static $config = [];
 
+	/**
+	 * 获取 API 集的客户端实例
+	 * 每个 API 集有一个实例用于签名和请求处理
+	 *
+	 * @return static
+	 */
 	protected static function getInstance()
 	{
-		$className = static::class;
+		$name = self::name();
 
-		if (!isset(self::$instance[$className])) {
-			self::$instance[$className] = new $className();
+		if (!isset(self::$instance[$name])) {
+			self::$instance[$name] = new self($name);
 		}
 
-		return self::$instance[$className];
+		return self::$instance[$name];
 	}
 
-	public function __construct()
+	/**
+	 * 获取 API 集的名称
+	 *
+	 * 如 internalApi\ucenter\Member 则名称为 ucenter
+	 *
+	 * @return bool|string
+	 */
+	public static function name()
 	{
 		$className = static::class;
 		$subName = strstr($className, '\\');
-		$name = substr($subName, 1, strpos($subName, '\\', 1)-1);
+		return substr($subName, 1, strpos($subName, '\\', 1)-1);
+	}
 
+	public function __construct($name)
+	{
 		if (isset(static::$config[$name])) {
 			foreach (static::$config[$name] as $k => $v) {
 				if ($this->$k === null) {