Elasticsearch中的多字段搜索查询

Question

I need to add search bar in my application. Search will search by First name and Last name. I don't know how to compose the elastcsearch query. First name and Last name are two separated fields. I am pretty new in es.

Example: First name: John Last name: Joshua

Search bar string for upper results: John Jo John Jos John Josh Joshua John Joshua Joh ...

Answer 1

You can use the Prefix query in your search. Matches documents that have fields containing terms with a specified prefix (not analyzed). The prefix query maps to Lucene Prefix Query . Query structure is as follows:

{
    "query": {
        "bool": {
            "must": [
                {
                    "prefix": {
                        "firstname": "jo"
                    }
                },
                {
                    "match": {
                        "lastname": "jo"
                    }
                }
            ]
        }
    }
}

Do not try wildcards, as they will not be effective in this search

Answer 2

Use the next query:

GET /_search {
   "query": { 
     "query_string" : { 
        "query" : "firstName:jhon   
             AND  lastName: Lennon" 
      } 
    }
  }