用户创建复杂的查询并通过elasticsearch搜索 [英] user create complex query and search over elasticsearch

问题描述

用户是否可以创建复杂的查询并阐明从ui进行搜索以及在Elasticsearch中进行搜索的条件?我知道弹性搜索中的布尔查询，但是我需要实现这样的查询，即每次用户都可以为我发送不同的条件，例如<，>，！=和...

Is it possible user create complex query and clarify conditions for search from ui and search in elasticsearch? I know about boolean query in elastic search , but i need to implement my query that elach time user could send different condition for me like , < , > , != and ...

推荐答案

实际上，有两种方法可以从用户输入中接受运算符:

In fact, there are two ways to accept operators from the user input :

• simple_query_string
• query_string

simple_query_string

simple_query_string查询支持以下运算符:

The simple_query_string query supports the following operators:

+ signifies AND operation
| signifies OR operation
- negates a single token
" wraps a number of tokens to signify a phrase for searching
* at the end of a term signifies a prefix query
( and ) signify precedence
~N after a word signifies edit distance (fuzziness)
~N after a phrase signifies slop amount

示例

GET /_search
{
  "query": {
    "simple_query_string" : {
        "query": "\"fried eggs\" +(eggplant | potato) -frittata",
        "fields": ["title^5", "body"],
        "default_operator": "and"
    }
  }
}

query_string

query_string支持更复杂的语法，但是不建议在搜索框中使用它，因为对于任何无效的语法都会返回错误.

The query_string supports more complex syntax but it is not recommended to use it on search boxes because returns an error for any invalid syntax.

示例

GET /_search
{
  "query": {
    "query_string": {
      "query": "(new york city) OR (big apple)",
      "default_field": "content"
    }
  }
}

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