public void index() { // 创建索引
IndexWriter writer = null;
try {
writer =
new IndexWriter(
directory,
new IndexWriterConfig(Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
writer.deleteAll();
Document doc = null;
for (int i = 0; i < ids.length; i++) {
doc = new Document();
doc.add(new Field("id", ids[i], Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
doc.add(new Field("email", emails[i], Field.Store.YES, Field.Index.NOT_ANALYZED));
doc.add(
new Field(
"email", "test" + i + "@test.com", Field.Store.YES, Field.Index.NOT_ANALYZED));
doc.add(new Field("content", contents[i], Field.Store.NO, Field.Index.ANALYZED));
doc.add(new Field("name", names[i], Field.Store.YES, Field.Index.NOT_ANALYZED_NO_NORMS));
// 存储数字
doc.add(new NumericField("attach", Field.Store.YES, true).setIntValue(attachs[i]));
// 存储日期
doc.add(new NumericField("date", Field.Store.YES, true).setLongValue(dates[i].getTime()));
String et = emails[i].substring(emails[i].lastIndexOf("@") + 1);
System.out.println(et);
if (scores.containsKey(et)) {
doc.setBoost(scores.get(et)); // 默认为1
} else {
doc.setBoost(0.5f);
}
writer.addDocument(doc);
}
} catch (CorruptIndexException e) {
e.printStackTrace();
} catch (LockObtainFailedException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (writer != null) writer.close();
} catch (CorruptIndexException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* Builds an in-memory index of the sentences in the text with the appropriate document boosts if
* specified.
*
* @throws Exception if one is thrown.
*/
protected void buildIndex() throws Exception {
IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_36, Tokenizer.getAnalyzer());
IndexWriter writer = new IndexWriter(ramdir, config);
int pno = 0;
for (ArrayList<ArrayList<TokenInfo>> paragraph : structure.getStructure()) {
ArrayList<String> strSentences = TokenizerUtils.recombineTokens2d(paragraph);
int sno = 0;
for (String sentence : strSentences) {
Document doc = new Document();
doc.add(new Field("text", sentence, Store.YES, Index.ANALYZED));
doc.setBoost(computeBoost(pno, sno));
writer.addDocument(doc);
sno++;
}
pno++;
}
writer.commit();
writer.close();
}