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  • lucene(全文搜索)_删除索引

    项目结构大家可以先看看:lucene(全文搜索)_根据内容建立索引_源码下载 

    索引的删除操作:

     1 /**
     2      * 索引的删除
     3      */
     4     public void delete() {
     5         IndexWriter writer = null;
     6 
     7         try {
     8             writer = new IndexWriter(directory, new IndexWriterConfig(
     9                     Version.LUCENE_35, new StandardAnalyzer(Version.LUCENE_35)));
    10             // 参数是一个选项,可以是一个query,也可以是一个term,term是一个精确查找的值
    11             writer.deleteDocuments(new Term("id", "1"));
    12         } catch (CorruptIndexException e) {
    13             e.printStackTrace();
    14         } catch (LockObtainFailedException e) {
    15             e.printStackTrace();
    16         } catch (IOException e) {
    17             e.printStackTrace();
    18         } finally {
    19             if (writer != null) {
    20                 try {
    21                     writer.close();
    22                 } catch (CorruptIndexException e) {
    23                     e.printStackTrace();
    24                 } catch (IOException e) {
    25                     e.printStackTrace();
    26                 }
    27             }
    28         }
    29     }

    测试代码:

    1 @Test
    2     public void testDelete(){
    3         LuceneUtil util = new LuceneUtil();
    4         System.out.println("删除前 =======");
    5         util.query();
    6         util.delete();
    7         System.out.println("删除后 =======");
    8         util.query();
    9     }

    运行结果:

    I'm Hongten

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  • 原文地址:https://www.cnblogs.com/hongten/p/hongten_lucene_delete_index.html
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