apache nutch 不抓取网站 [英] apache nutch don't crawl website

问题描述

我已经安装了用于网络爬行的 apache nutch.我想抓取一个包含以下 robots.txt 的网站:

I have installed the apache nutch for web crawling. I want to crawl a website that has the following robots.txt:

User-Agent: *
Disallow: /

有什么办法可以用apache nutch抓取这个网站吗?

Is there any way to crawl this website with apache nutch?

推荐答案

在 nutch-site.xml 中，将 protocol.plugin.check.robots 设置为 false

In nutch-site.xml, set protocol.plugin.check.robots to false

或

您可以注释掉完成机器人检查的代码.在 Fetcher.java 中，第 605-614 行正在进行检查.注释整个块

You can comment out the code where the robots check is done. In Fetcher.java, lines 605-614 are doing the check. Comment that entire block

      if (!rules.isAllowed(fit.u)) {
        // unblock
        fetchQueues.finishFetchItem(fit, true);
        if (LOG.isDebugEnabled()) {
          LOG.debug("Denied by robots.txt: " + fit.url);
        }
        output(fit.url, fit.datum, null, ProtocolStatus.STATUS_ROBOTS_DENIED, CrawlDatum.STATUS_FETCH_GONE);
        reporter.incrCounter("FetcherStatus", "robots_denied", 1);
        continue;
      }

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