1.下載官方SDK，文檔上有地址
2.下載的SDK引入會報錯，缺少類Monolog/Logger，需要用SDK中composer加載，然后放入SDK中
3.我用的tp5.1框架，SDK放到了項目vendor目錄下，方法中需要引入SDK中三個類文件,具體代碼：

public function test(){
        header("Content-type: text/html; charset=utf-8");
        vendor('JD_DECRYPT_SDK.vendor.autoload');//這里的vendor是composer加載的文件
        vendor("JD_DECRYPT_SDK.security.SecretJdClient");
        vendor("JD_DECRYPT_SDK.security.TDEClient");
        //$this->accessToken是accessToken , $this->appKey是appKey , $this->appSecret是appSercret
        $tde = \ACES\SecretJdClient::getInstance($this->accessToken, $this->appKey, $this->appSecret);
        //加密方法encrypt
        // $ct = $tde->encrypt($pt);
        // echo $ct;
        $ct = 'AATdzwjhRcQuGgpzE0j+XhVquJ1g0k6/uL9SjrgaJ/wnro6JGAKzLQquLhyk3QRgtTg=';
        //解密方法decrypt
        $decrypted = $tde->decrypt($ct);
        return $decrypted;
}