📄 highlightit.java
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package lia.tools;import org.apache.lucene.analysis.TokenStream;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.index.Term;import org.apache.lucene.search.TermQuery;import org.apache.lucene.search.highlight.Fragmenter;import org.apache.lucene.search.highlight.Highlighter;import org.apache.lucene.search.highlight.QueryScorer;import org.apache.lucene.search.highlight.SimpleFragmenter;import org.apache.lucene.search.highlight.SimpleHTMLFormatter;import java.io.FileWriter;import java.io.IOException;import java.io.StringReader;public class HighlightIt { private static final String text = "Contrary to popular belief, Lorem Ipsum is" + " not simply random text. It has roots in a piece of" + " classical Latin literature from 45 BC, making it over" + " 2000 years old. Richard McClintock, a Latin professor" + " at Hampden-Sydney College in Virginia, looked up one" + " of the more obscure Latin words, consectetur, from" + " a Lorem Ipsum passage, and going through the cites" + " of the word in classical literature, discovered the" + " undoubtable source. Lorem Ipsum comes from sections" + " 1.10.32 and 1.10.33 of \"de Finibus Bonorum et" + " Malorum\" (The Extremes of Good and Evil) by Cicero," + " written in 45 BC. This book is a treatise on the" + " theory of ethics, very popular during the" + " Renaissance. The first line of Lorem Ipsum, \"Lorem" + " ipsum dolor sit amet..\", comes from a line in" + " section 1.10.32."; // from http://www.lipsum.com/ public static void main(String[] args) throws IOException { String filename = args[0]; if (filename == null) { System.err.println("Usage: HighlightIt <filename>"); System.exit(-1); } TermQuery query = new TermQuery(new Term("f", "ipsum")); QueryScorer scorer = new QueryScorer(query); SimpleHTMLFormatter formatter = new SimpleHTMLFormatter("<span class=\"highlight\">", "</span>"); Highlighter highlighter = new Highlighter(formatter, scorer); Fragmenter fragmenter = new SimpleFragmenter(50); highlighter.setTextFragmenter(fragmenter); TokenStream tokenStream = new StandardAnalyzer() .tokenStream("f", new StringReader(text)); String result = highlighter.getBestFragments(tokenStream, text, 5, "..."); FileWriter writer = new FileWriter(filename); writer.write("<html>"); writer.write("<style>\n" + ".highlight {\n" + " background: yellow;\n" + "}\n" + "</style>"); writer.write("<body>"); writer.write(result); writer.write("</body></html>"); writer.close(); }}⌨️ 快捷键说明
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