应用分析器/过滤器时搜索elasticsearch错误

我只是简化了你的问题，为简单起见，我们假设你只需要1场被称为

title

c

c++

c#

f#

该

title

{    "settings": {        "index": { "analysis": {     "analyzer": {         "my_analyzer": {  "filter": [      "lowercase"  ],  "char_filter": [      "pre_mapping"  ],  "tokenizer": "standard" --> notice `standard`         }     },     "char_filter": {         "pre_mapping": {  "type": "mapping",  "mappings": [      "++ => plusplus",      "c# => csharp",      "C# => csharp",      "F# => fsharp",      "f# => fsharp",      ".net => dotnet",      ".Net => dotnet",      ".NET => dotnet",      "( => map_lp",      ") => map_rp",      "& => and",      "# => hash",      "+ => plus"  ]         }     } }        }    },    "mappings": {        "properties": { "title": {     "type": "text",     "analyzer": "my_analyzer" --> using custom analyzer created in settings }        }    }}

为一些文档编制索引

POST / _doc / {doc-is}

{    "title": "c#"}{    "title": "c++"}{    "title": "c"}{    "title": "F#"}

搜索查询，这是为您提供的问题中提取包含的所有记录的问题

c

{    "query": {        "bool": { "must": [     {         "match": {  "title": "c++"         }     } ]        }    },    "size": 10}

现在对我而言，它仅检索仅包含

c++

"hits": {        "total": { "value": 1, "relation": "eq"        },        "max_score": 0.9808292,        "hits": [ {     "_index": "cplus",     "_type": "_doc",     "_id": "1",     "_score": 0.9808292,     "_source": {         "title": "c++"     } }        ]    }