弹性搜索全文检索 [英] ElasticSearch Full Text Search

问题描述

我尝试使用正则表达式在弹性搜索java api上运行全文搜索。我的过滤器是这样的：

I try to run full text search with regular expression on elastic search java api. My filter is like this:

  FilterBuilder qFilter= FilterBuilders.regexpFilter("_all",
 ". *"+text+". *");

但它只匹配一个不带短语的单词。我的意思是，例如：

But it matches with only one word not with a phrase. What I mean is, for example:

如果在下面有一个字符串：一二三四五.. ，当我的文本字符串如下所示： two ，我们的， thr ...然后它的工作。

if there is a string in the soruce like: "one two three four five.." and when my text string is like these: "two" , "our", "thr" ... then it works.

但是当我的realTimeTextIn字符串是两个三个全文搜索不起作用。我不能搜索一个以上的单词。

But when my realTimeTextIn string is "two three" full text search doesn't work. I can't search one more than one words.

我在这里缺少什么？

其余的的代码是这样的：

The rest of the codes are something like this:

 FilterBuilder qFilter      = FilterBuilders.regexpFilter("_all", ".*"+q+".*");
  SearchResponse response  = ClientProvider.instance().getClient().prepareSearch(index)
                      .setTypes(type)
                      .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)                            
                      .setPostFilter(qFilter)                  
                      .setFrom(0).setSize(250).setExplain(true)       
                      .execute()
                      .actionGet();

感谢您的帮助。

推荐答案

当文本字符串为空或为null时，此连接方法将抛出异常。
您可以使用这样的regexp过滤器。

When text string is empty or null,this join method throws exception. You can use regexp filter like this.

FilterBuilder qFilter = FilterBuilders.regexpFilter("_all",(".*"+q+".*").replace(" ", ".*"));

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