Lucene小练八（实现了索引和搜索） - JAVA

d catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//用reader来删除

//使用reader进行恢复
@SuppressWarnings("deprecation")
public void undelete()
{
IndexReader reader = null;
try {
reader = IndexReader.open(directory,false);
reader.undeleteAll();
reader.close();
} catch (StaleReaderException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (LockObtainFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
//清空回收站
public void forceDelete()
{
try {
writer=new IndexWriter(directory, new IndexWriterConfig(Version.LUCENE_36,
new StandardAnalyzer(Version.LUCENE_36)));
writer.forceMergeDeletes();
} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (LockObtainFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block

e.printStackTrace();
}finally{
try {
writer.close();
} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//已经停用
public void forceMerge()
{
try {
writer=new IndexWriter(directory, new IndexWriterConfig(Version.LUCENE_36,
new StandardAnalyzer(Version.LUCENE_36)));
writer.forceMerge(3);
} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (LockObtainFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
try {
writer.close();
} catch (CorruptIndexException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
//更新索引
public void update()
{
Document document=null;
try {
writer=new IndexWriter(directory, new IndexWriterC

Lucene小练八（实现了索引和搜索）(三)