您如何使用CouchDB更改通知从Java进行持续更改？

我正在使用的代码如下.我希望永远不会退出while循环,但只要当前现有的更改完成流式传输就会立即执行.我对couchdb和Java都比较新,所以可能会遗漏一些明显的东西.任何人都可以告诉我如何正确地写这个吗？

URL url = new URL("[path to database here]/_changes?feed=continuous";);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true); 
conn.setUseCaches(false); 
conn.setRequestProperty("Connection","Keep-Alive"); 
conn.setRequestMethod("GET");
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while((line = reader.readLine()) != null){
    // do something with the line here
}
// Should never get here under normal circumstances
reader.close();