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IndexWriter indexWriter = new IndexWriter(path,chinese,flag);
Document doc = new Document();
doc.add(new Field("id",id,Field.Store.YES,Field.Index.TOKENIZED));
doc.add(new Field("content",content,Field.Store.YES,Field.Index.TOKENIZED));
indexWriter.addDocument(doc);
//优化并关闭
indexWriter.optimize();
indexWriter.close();
//解锁
IndexWriter.unlock(directory);
indexWriter.deleteDocuments(new Term("id",id));//删除查询内容
//优化关闭
indexWriter.optimize();
indexWriter.close();
directory.close();