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Elasticsearch 使用总结

  1. 安装ES 7.X版本
  2. 安装ik分词（注意与ES版本一致）

本文针对 ES7.8版本执行完成

相关文档

ES官方文档 ik分词 ES7.8破解

常用命令

# 启动
systemctl start elasticsearch.service

# 停止
systemctl stop elasticsearch.service

# 设置系统自动启动
systemctl enable elasticsearch.service

新建文档结构

PUT http://ip:9200/users/_doc/?pretty

{
    "mappings": {
        "properties": {
            "user_name": {
                "type": "text",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_smart"
            },
            "user_phone": {
                "type": "keyword",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_smart"
            },
            "user_age": {
                "type": "integer"
            },
            "user_remark": {
                "type": "text",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_smart"
            },
            "create_time": {
                "type": "date",
                "format": "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd||epoch_millis"
            }
        }
    }
}

新建数据

POST http://ip:9200/users/_doc/?pretty

{
  "user_name":"XXXXX",
  "user_phone": "186XXXXXXXX",
  "user_age": 30,
  "user_remark": "这里省略一万字",
  "create_time": "2020-12-07 12:59:59"
}

查询

GET http://10.10.151.52:9200/users/_search

{
    "from": 0,
    "size": 10,
    "query": {
        "match": {
            "user_name": "李"
        }
    },
    "highlight": {
        "pre_tags": [
            "<tag1>"
        ],
        "post_tags": [
            "</tag1>"
        ],
        "fields": {
            "user_name": {}
        }
    }
}

精确查询

GET http://10.10.151.52:9200/users/_search

{
    "query": {
        "terms": {
            "user_name.keyword": "李xxxx"
        }
    }
}

分词分析

GET http://ip:9200/_analyze?pretty

{
    "analyzer": "ik_smart",
    "text": "一万个字"
}

删除表

DELETE http://ip:9200/users

复杂的查询

{
    "sort": [
        {
            "create_time.keyword": "desc"
        }
    ],
    "query": {
        "bool": {
            "filter": {
                "range": {
                    "create_time.keyword": {
                        "gte": "2020-01-01",
                        "lte": "2020-12-31",
                        "format": "yyyy-MM-dd"
                    }
                }
            },
            "must": {
                "bool": {
                    "should": [
                        {
                            "term": {
                                "user_name.keyword": "汇川技术"
                            }
                        },
                        {
                            "term": {
                                "user_name.keyword": "长城汽车"
                            }
                        }
                    ]
                }
            },
            "should": [
                {
                    "match": {
                        "user_remark": "2020年汇川技术和长城汽车所有事件"
                    }
                }
            ]
        }
    }
}