Lucene6.5.0
创建Lucene索引
涉及到的类：Directory FSDirectory
IndexWriterConfig StandardAnalyzer IndexWriter
Document FieldType Field
创建索引的代码
public void createIndex(){
Directory directory = null;
IndexWriterConfig config = new IndexWriterConfig(new StandardAnalyzer());
IndexWriter iwriter = null;
Document d = null;
FieldType fieldType = new FieldType();
fieldType.setStored(false);
fieldType.setIndexOptions(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS);
FieldType fieldType1 = new FieldType();
fieldType1.setStored(true);
fieldType1.setIndexOptions(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS);
try {
//创建索引目录
directory = FSDirectory.open(Paths.get(Constant.INDE_DIR));
//创建IndexWriter写索引
iwriter = new IndexWriter(directory, config);
//获取文件数据文件夹
File files = new File(Constant.FILE_DIR);
for(File f : files.listFiles()){
//创建一片文档
d = new Document();
//给文档添加域
d.add(new Field("content", new FileReader(f),fieldType) );
d.add(new Field("title", f.getName(), fieldType1));
d.add(new Field("path", f.getPath(), fieldType1));
iwriter.addDocument(d);
}
} catch (IOException e) {
e.printStackTrace();
}finally{
if(iwriter != null){
try {
iwriter.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
directory.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}