45 Elasticsearch docker安装ik插件及预设分词器 - xiaoxin01/Blog GitHub Wiki

在使用Elasticsearch时处理中文内容时，需要安装额外的解析器来处理中文分词。

制作带分词插件的镜像

以ik为例：

ARG ELK_VERSION=6.2.2
FROM docker.elastic.co/elasticsearch/elasticsearch-oss:$ELK_VERSION

ARG ELK_VERSION
RUN ./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v$ELK_VERSION/elasticsearch-analysis-ik-$ELK_VERSION.zip

使用template设置index的默认mapping

PUT /_template/template_1
{
  "index_patterns" : ["*"],
  "settings": {
    "analysis": {
      "analyzer": {
        "my_custom_analyzer": {
          "type":      "custom",
          "tokenizer": "ik_max_word",
          "char_filter": [
            "html_strip"
          ],
          "filter": [
            "lowercase",
            "asciifolding"
          ]
        }
      }
    }
  },
  "mappings": {
    "doc": {
      "properties": {
        "content": { 
          "type": "text",
          "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
          },
          "analyzer": "my_custom_analyzer"
        },
        "title": { 
          "type": "text",
          "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
          },
          "analyzer": "my_custom_analyzer"
        },
        "description": { 
          "type": "text",
          "fields": {
              "keyword": {
                "type": "keyword",
                "ignore_above": 256
              }
          },
          "analyzer": "my_custom_analyzer"
        }
      }
    }
  }
}

使用reindex功能重新索引数据

如果配置之前数据已经存在elasticsearch中，则可以用reindex功能来重新索引数据

POST _reindex
{
  "source": {
    "index": "origin_index"
  },
  "dest": {
    "index": "new_index"
  }
}

delete origin_index

POST _reindex
{
  "source": {
    "index": "new_index"
  },
  "dest": {
    "index": "origin_index"
  }
}

使用template查询

GET origin_index/_search/template
{
    "source" : {
      "_source": ["title", "meta"],
      "query": {
        "multi_match" : {
          "query":    "{{keyword}}",
          "fields": [ "title", "content", "description" ] 
        }
      },
      "highlight" : {
        "number_of_fragments" : 3,
        "fragment_size" : 150,
        "fields" : {
            "content" : {"pre_tags" : ["<mark>"], "post_tags" : ["</mark>"]},
            "description" : {"pre_tags" : ["<mark>"], "post_tags" : ["</mark>"]},
            "title" : {"pre_tags" : ["<mark>"], "post_tags" : ["</mark>"]}
        }
      }
    },
    "params" : {
        "keyword" : "手机"
    }
}

参考：

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