使用 playwright 自定义 js 下载的路径和文件名

遇到一个问题，点击按钮自动下载文件，路径和文件名都不能自定义，可以用 playwright 来解决这个问题

from playwright.sync_api import sync_playwright  
import os  
import time  

class ExcelDownloader:  
    def __init__(self, download_path: str):  
        self.download_path = os.path.abspath(download_path)  
        os.makedirs(self.download_path, exist_ok=True)  
        
    def download(self, url: str, file_name: str):  
        with sync_playwright() as p:  
            browser = p.chromium.launch(headless=False)  # 设置 headless=True 可以隐藏浏览器  
            context = browser.new_context(  
                accept_downloads=True,  
                viewport={'width': 1920, 'height': 1080}  
            )  
            page = context.new_page()  
            
            try:  
                # 访问页面  
                page.goto(url)  
                
                # 等待页面加载完成  
                page.wait_for_load_state("networkidle")  
                
                # 等待按钮可见  
                page.wait_for_selector('button[ng-click="exportOrder()"]', state="visible")  
                
                # 开始监听下载  
                with page.expect_download() as download_info:  
                    # 点击导出按钮  
                    page.click('button[ng-click="exportOrder()"]')  
                    
                # 获取下载对象  
                download = download_info.value  
                
                # 构建保存路径  
                save_path = os.path.join(self.download_path, file_name)  
                
                # 如果文件已存在则删除  
                if os.path.exists(save_path):  
                    os.remove(save_path)  
                
                # 保存文件  
                download.save_as(save_path)  
                
                print(f"文件已下载到: {save_path}")  
                return save_path  
                
            except Exception as e:  
                print(f"下载失败: {str(e)}")  
                raise  
            finally:  
                context.close()  
                browser.close()  

# 使用示例  
def main():  
    # 下载配置  
    config = {  
        "url": "https://example.com/page",  
        "download_path": "D:/Downloads",  
        "file_name": "export.xlsx"  
    }  
    
    downloader = ExcelDownloader(config["download_path"])  
    
    try:  
        file_path = downloader.download(  
            url=config["url"],  
            file_name=config["file_name"]  
        )  
        print(f"下载成功: {file_path}")  
    except Exception as e:  
        print(f"下载失败: {str(e)}")  

if __name__ == "__main__":  
    main()