判断网盘链接是否失效

判断百度网盘是否失效

public static void main(String[] args) {

        try {
            Boolean isclosed = true; 
            URL url = new URL("https://pan.baidu.com/s/1gfinNhh");//在这地方输入你要查询的链接
            try {
                //链接中的内容，读到程序中
                InputStream is = url.openStream();
                InputStreamReader isr = new InputStreamReader(is, "utf-8");
                BufferedReader br = new BufferedReader(isr);
                StringBuilder sb = new StringBuilder();
                String data = br.readLine();
                while (data != null) {
                    data = br.readLine();
                    sb.append(data);
                }
                br.close();
                isr.close();
                is.close();
                String finaldata = sb.toString();
                //看连接中是否包含失效文本
                if (finaldata==null||finaldata.contains("分享的文件已经被取消了") || finaldata.contains("此链接分享内容可能因为涉及侵权") || finaldata.contains("你所访问的页面不存在了"))
                    isclosed = false;
                if (isclosed == true) {
                    System.out.println("该链接未失效！");
                } else {
                    System.out.println("该链接已失效！");
                }
            } catch (IOException e) {
                e.printStackTrace();
            }


        } catch (MalformedURLException e) {
            e.printStackTrace();
        }
    }