ThinkPHP之跨模块调用页面找不到的问题

今天在做跨模块的时候，发现始终出问题，页面找不到，后来发现需要这么改。

比如A模块调用B模块的index方法

<?php
import("@.Action.Admin.CustomerAction");

class TransactionAction extends AdminCommAction{
    public function index(){
        $transaction_id = Session::get("transaction_id");
        $station_id = getStationId();
        $customer_id = Session::get("cur_customer");
        if(!isset($customer_id)){
            R("Customer", "index", "Admin");
        }

        if(!isset($transactionId)){
            $data['store_id'] = $this->store_id;
            
        }
        //$this->display("point-of-sale");
    }
}
?>

另一个模块中

<?
public function index(){
        $customerModel = D('customer');
        $where['enable']=1;
        $getPage=changePage($customerModel,$where,9);

        $resultlist = $customerModel->where("enable = 1")->page($getPage. ',9')->select();
        foreach($resultlist as $key=>$value){
            $customer_id = $resultlist[$key]['customer_id'];
            $resultlist[$key]['itemsold'] = Count::getTotalItemSold($customer_id);
            $resultlist[$key]['orderd'] = Count::getOrderd($customer_id);
            $resultlist[$key]['latefees'] = Count::getLateFeesOutstanding($customer_id);
            $resultlist[$key]['totalorder'] = Count::getTotalOrderNumber($customer_id);
        }

        $total = $customerModel->where("enable = 1")->count();
        $Page = new Page($total,9);
        $this->assign("resultList",$resultlist);
        $this->assign("page",$Page->show());
        $this->display("Customer/CustomerMan");  //这个很重要，否则会找不到页面
    }
?>