将Lucene与H2数据库一起使用时出错

时间:2018-12-07 06:52:06

标签: java database lucene h2

我想在使用H2数据库(嵌入式)的项目中实现一个小型全文搜索。据我所知,我必须使用Lucene for FullText引擎查找相关性结果(不仅包含结果)。 但是我不能使用它。此块是Lucene初始化:

FullTextLucene.init(connection);
FullTextLucene.createIndex(connection, "PUBLIC", Tables.COURSES_DETAIL, Columns.NAME);

我也是这样使用的:

  stmt.execute(
      "create alias if not exists FTL_INIT for \"org.h2.fulltext.FullTextLucene.init\"");
  stmt.execute("call FTL_INIT()");
  stmt.execute(
      String.format("CALL FTL_CREATE_INDEX('PUBLIC','%s',%s)", Tables.COURSES_DETAIL, "NULL"));

但是此错误在运行时发生:

Error creating or initializing trigger "FTL_COURSES_DETAIL" object, class "org.h2.fulltext.FullTextLucene$FullTextTrigger", cause: "org.h2.message.DbException: Class ""org.h2.fulltext.FullTextLucene$FullTextTrigger"" not found [90086-197]"; see root cause for details; SQL statement:
CREATE TRIGGER IF NOT EXISTS "PUBLIC"."FTL_COURSES_DETAIL" AFTER INSERT, UPDATE, DELETE, ROLLBACK ON "PUBLIC"."COURSES_DETAIL" FOR EACH ROW CALL "org.h2.fulltext.FullTextLucene$FullTextTrigger"

将H2库降级到最新的“稳定”版本(1.4.196)后,错误已更改:

Caused by: java.lang.NoSuchMethodError: org.apache.lucene.store.FSDirectory.open(Ljava/io/File;)Lorg/apache/lucene/store/FSDirectory;

有时还会出现此错误:

Exception calling user-defined function: "init(conn1: url=jdbc:default:connection user=INFC): org.apache.lucene.store.FSDirectory.open(Ljava/io/File;)Lorg/apache/lucene/store/FSDirectory;"; SQL statement:
call FTL_INIT()

1 个答案:

答案 0 :(得分:0)

我找到了解决方案。但是我知道这不是最好的。

我将Lucene lib降级为3.6.2,并使用普通查询而不是FullTextLucene函数。