我是否很厚或者是否真的无法以编程方式通过某些
Java代码调用Apache Nutch？关于如何执行此操作的文档(或指南或教程)在哪里？谷歌让我失望了.所以我实际上尝试了Bing. (是的,我知道,可悲.)想法？提前致谢.
(另外,如果Nutch是一个废话,那么用Java编写的任何其他爬行器在互联网规模上都可以用实际文档证明是可靠的吗？)
解决方法
如果您查看bin / nutch脚本,您将看到它调用与您的命令对应的Java类：
# figure out which class to run if [ "$COMMAND" = "crawl" ] ; then CLASS=org.apache.nutch.crawl.Crawl elif [ "$COMMAND" = "inject" ] ; then CLASS=org.apache.nutch.crawl.Injector elif [ "$COMMAND" = "generate" ] ; then CLASS=org.apache.nutch.crawl.Generator elif [ "$COMMAND" = "freegen" ] ; then CLASS=org.apache.nutch.tools.FreeGenerator elif [ "$COMMAND" = "fetch" ] ; then CLASS=org.apache.nutch.fetcher.Fetcher elif [ "$COMMAND" = "fetch2" ] ; then CLASS=org.apache.nutch.fetcher.Fetcher2 elif [ "$COMMAND" = "parse" ] ; then CLASS=org.apache.nutch.parse.ParseSegment elif [ "$COMMAND" = "readdb" ] ; then CLASS=org.apache.nutch.crawl.CrawlDbReader elif [ "$COMMAND" = "convdb" ] ; then CLASS=org.apache.nutch.tools.compat.CrawlDbConverter elif [ "$COMMAND" = "mergedb" ] ; then CLASS=org.apache.nutch.crawl.CrawlDbMerger elif [ "$COMMAND" = "readlinkdb" ] ; then CLASS=org.apache.nutch.crawl.LinkDbReader elif [ "$COMMAND" = "readseg" ] ; then CLASS=org.apache.nutch.segment.SegmentReader elif [ "$COMMAND" = "segread" ] ; then echo "[DEPRECATED] Command 'segread' is deprecated,use 'readseg' instead." CLASS=org.apache.nutch.segment.SegmentReader elif [ "$COMMAND" = "mergesegs" ] ; then CLASS=org.apache.nutch.segment.SegmentMerger elif [ "$COMMAND" = "updatedb" ] ; then CLASS=org.apache.nutch.crawl.CrawlDb elif [ "$COMMAND" = "invertlinks" ] ; then CLASS=org.apache.nutch.crawl.LinkDb elif [ "$COMMAND" = "mergelinkdb" ] ; then CLASS=org.apache.nutch.crawl.LinkDbMerger elif [ "$COMMAND" = "index" ] ; then CLASS=org.apache.nutch.indexer.Indexer elif [ "$COMMAND" = "solrindex" ] ; then CLASS=org.apache.nutch.indexer.solr.SolrIndexer elif [ "$COMMAND" = "dedup" ] ; then CLASS=org.apache.nutch.indexer.DeleteDuplicates elif [ "$COMMAND" = "solrdedup" ] ; then CLASS=org.apache.nutch.indexer.solr.SolrDeleteDuplicates elif [ "$COMMAND" = "merge" ] ; then CLASS=org.apache.nutch.indexer.IndexMerger elif [ "$COMMAND" = "plugin" ] ; then CLASS=org.apache.nutch.plugin.PluginRepository elif [ "$COMMAND" = "server" ] ; then CLASS='org.apache.nutch.searcher.DistributedSearch$Server' else CLASS=$COMMAND fi # run it exec "$JAVA" $JAVA_HEAP_MAX $NUTCH_OPTS -classpath "$CLASSPATH" $CLASS "$@"