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我试图抓取Apache邮件列表以获取所有使用Crawler4j的存档邮件。我提供了一个种子URL，并试图获得其他消息的链接。但是，它似乎并没有提取所有的链接。Crawler4j缺少传出链接？
以下是我的种子页面（http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%3CCAOG_4QZ-yyrcwTpRu-8eu6VoUoM3%3DAo_J8Linhpnc%2B6y7tOcxg%40mail.gmail.com%3E）的HTML：
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<td class="left">From</td>
<td class="right">Neha Narkhede <[email protected]></td>
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<td class="right">Re: some healthy broker disappear from zookeeper</td>
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<td class="right">Tue, 20 Nov 2012 19:01:56 GMT</td>
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<tr class="contents"><td colspan="2"><pre>
zookeeper server version is 3.3.3 is pretty buggy and has known
session expiration and unexpected ephemeral node deletion bugs.
Please upgrade to 3.3.4 and retry.
Thanks,
Neha
On Tue, Nov 20, 2012 at 10:42 AM, Xiaoyu Wang <[email protected]> wrote:
> Hello everybody,
>
> We have run into this problem a few times in the past week. The symptom is
> some broker disappear from zookeeper. The broker appears to be healthy.
> After that, producers start producing lots of ZK producer cache stale log
> and stop making any progress.
> "logger.info("Try #" + numRetries + " ZK producer cache is stale.
> Refreshing it by reading from ZK again")"
>
> We are running kafka 0.7.1 and the zookeeper server version is 3.3.3.
>
> The missing broker will show up in zookeeper after we restart it. My
> question is
>
> 1. Did anyone encounter the same problem? how did you fix it?
> 2. Why producer is not making any progress? Can we make the producer
> work with those brokers that are listed in zookeeper.
>
>
> Thanks,
>
> -Xiaoyu
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这些所确定Crawler4j传出的URL。
http://mail-archives.apache.org/archives/style.css
http://mail-archives.apache.org/mod_mbox/
http://mail-archives.apache.org/mod_mbox/kafka-users
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/date
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/thread
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%3CCAOG_4QZ-yyrcwTpRu-8eu6VoUoM3%3DAo_J8Linhpnc%2B6y7tOcxg%40mail.gmail.com%3E
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/date
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/thread
但是，我感兴趣的URL缺失。
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%[email protected].com%3e
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%[email protected].com%3e
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%[email protected].com%3e
http://mail-archives.apache.org/mod_mbox/kafka-users/201211.mbox/%[email protected].com%3e
我在做什么错？我如何让Crawler4j提取我需要的网址？
嘿！感谢protip！ –