java爬取企查查网站的时候多次遇到window.location.href

爬取的过程之中连续多次返回以下结果,困扰了许多天,百度了许多,都为找到合理的解决方案,感谢大神解惑

<html>
 <head>
  <script>window.location.href='https://www.qichacha.com/index_verify?type=companysearch&back=/search?key=%E7%A6%8F%E5%BB%BA%E9%9B%8D%E6%A0%BC%E5%BB%BA%E8%AE%BE%E5%B7%A5%E7%A8%8B%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8';</script>
 </head>
 <body></body>
</html>

爬虫使用的是HttpURLConnection 和蘑菇代理,访问的页面

 URL url = new URL(targetUrl);
        Authenticator.setDefault(new ProxyAuthenticator(proxyUser, proxyPass));

        // 创建代理服务器地址对象
        InetSocketAddress addr = new InetSocketAddress(proxyServer, proxyPort);
        // 创建HTTP类型代理对象
        Proxy proxy = new Proxy(Proxy.Type.HTTP, addr);

        // 设置通过代理访问目标页面
        HttpURLConnection connection = (HttpURLConnection) url.openConnection(proxy);