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  • kibana使用

    一、安装

    1.拉取镜像

    docker pull kibana:7.4.2

    2.运行容器

    docker run -di --name kibana -e ELASTICSEARCH_URL=http://128.1.49.131:9200 -p 5601:5601 kibana:7.4.2

    3.开9200、9300、5601端口

    二、操作es(左侧导航栏dev tools)

    1.操作索引

    ● 创建索引(包括创建映射)

    PUT /viuman
    {
      "settings": {
        "number_of_shards": 1,
        "number_of_replicas": 0
      },
      "mappings": {
          "properties": {
            "images": {
                "type": "keyword",
                "index": false
              },
              "price": {
                "type": "float"
              },
              "saleable": {
                "type": "boolean"
              },
              "stock": {
                "type": "long"
              },
              "title": {
                "type": "text",
                "analyzer": "ik_max_word"
              }
          }
        }
    }

    ● 查看所有索引

    GET *

    ● 查看索引信息

    GET viuman

    ● 查看映射

    GET viuman/_mapping

    ● 删除索引

    DELETE viuman

    ● 导入数据

    POST /cars/_bulk
    { "index": {}}
    { "price" : 10000, "color" : "red", "make" : "honda", "sold" : "2014-10-28" }
    { "index": {}}
    { "price" : 20000, "color" : "red", "make" : "honda", "sold" : "2014-11-05" }
    { "index": {}}
    { "price" : 30000, "color" : "green", "make" : "ford", "sold" : "2014-05-18" }
    { "index": {}}
    { "price" : 15000, "color" : "blue", "make" : "toyota", "sold" : "2014-07-02" }
    { "index": {}}
    { "price" : 12000, "color" : "green", "make" : "toyota", "sold" : "2014-08-19" }
    { "index": {}}
    { "price" : 20000, "color" : "red", "make" : "honda", "sold" : "2014-11-05" }
    { "index": {}}
    { "price" : 80000, "color" : "red", "make" : "bmw", "sold" : "2014-01-01" }
    { "index": {}}
    { "price" : 25000, "color" : "blue", "make" : "ford", "sold" : "2014-02-12" }

    2.操作文档

    ● 添加文档(随机生成id)

    POST /viuman/_doc/
    {
        "title":"小米手机",
        "images":"http://image.leyou.com/12479122.jpg",
        "price":2699.00
    }

    ● 添加/修改文档

    PUT /viuman/_doc/3
    {
        "title":"超米手机",
        "images":"http://image.leyou.com/12479122.jpg",
        "price":2899.00,
        "stock": 200,
        "saleable":true
    }

    ● 删除文档

    DELETE /viuman/_doc/2

    3.基本搜索

    ● 查所有文档

    GET _search

    ● or搜索

    GET /viuman/_search
    {
        "query":{
            "match":{
                "title":"小米电视"
            }
        }
    }

    ● and搜索

    GET /viuman/_search
    {
        "query":{
            "match": {
              "title": {
                "query": "小米电视",
                "operator": "and"
              }
            }
        }
    }

    ● 按匹配到总分词数量的百分比搜索

    GET /viuman/_search
    {
        "query":{
            "match":{
                "title":{
                    "query":"小米曲面电视",
                    "minimum_should_match": "75%"
                }
            }
        }
    }

    ● 多字段搜索

    GET /viuman/_search
    {
        "query":{
            "multi_match": {
                "query":    "小米",
                "fields":   [ "title", "subTitle" ]
            }
        }
    }

    ● 精确匹配

    GET /viuman/_search
    {
        "query":{
            "term":{
                "price":2699.00
            }
        }
    }

    ● 多词条精确匹配

    GET /viuman/_search
    {
        "query":{
            "terms":{
                "price":[2699.00,2899.00,3899.00]
            }
        }
    }

    ● 只返回指定字段

    GET /viuman/_search
    {
      "_source": ["title","price"],
      "query": {
        "term": {
          "price": 2699
        }
      }
    }

    ● 不返回指定字段

    GET /viuman/_search
    {
      "_source": {
         "excludes": ["images"]
      },
      "query": {
        "term": {
          "price": 2699
        }
      }
    }

    4.高级搜索

    must(与)、must_not(非)、should(或)布尔查询

    GET /viuman/_search
    {
        "query":{
            "bool":{
                "must":     { "match": { "title": "大米" }},
                "must_not": { "match": { "title":  "电视" }},
                "should":   { "match": { "title": "手机" }}
            }
        }
    }

    ● 范围查询(gt大于 gte大于等于 lt小于 lte小于等于)

    GET /viuman/_search
    {
        "query":{
            "range": {
                "price": {
                    "gte":  1000.0,
                    "lt":   2800.00
                }
            }
        }
    }

    ● 模糊查询(默认最大编辑距离2)

    GET /viuman/_search
    {
      "query": {
        "fuzzy": {
          "title": "appla"
        }
      }
    }

    ● 模糊查询(指定编辑距离)

    GET /viuman/_search
    {
      "query": {
        "fuzzy": {
            "title": {
                "value":"appla",
                "fuzziness":1
            }
        }
      }
    }

    ● 条件查询中进行过滤

    GET /viuman/_search
    {
        "query":{
            "bool":{
                "must":{ "match": { "title": "小米手机" }},
                "filter":{
                    "range":{"price":{"gt":2000.00,"lt":3800.00}}
                }
            }
        }
    }

    ● 无查询条件直接过滤

    GET /viuman/_search
    {
        "query":{
            "constant_score":   {
                "filter": {
                     "range":{"price":{"gt":2000.00,"lt":3000.00}}
                }
            }
        }
    }

    ● 单字段排序

    GET /viuman/_search
    {
      "query": {
        "match": {
          "title": "小米手机"
        }
      },
      "sort": [
        {
          "price": {
            "order": "desc"
          }
        }
      ]
    }

    ● 多字段排序(首先按照价格排序,然后按照相关性得分排序)

    GET /viuman/_search
    {
        "query":{
            "bool":{
                "must":{ "match": { "title": "小米手机" }},
                "filter":{
                    "range":{"price":{"gt":2000,"lt":300000}}
                }
            }
        },
        "sort": [
          { "price": { "order": "desc" }},
          { "_score": { "order": "desc" }}
        ]
    }

     5.聚合

    1)划分桶(查看各桶的数量)

    GET /cars/_search
    {
        "size" : 0,
        "aggs" : { 
            "popular_colors" : { 
                "terms" : { 
                  "field" : "color"
                }
            }
        }
    }
    • size: 查询条数,这里设置为0,因为我们不关心搜索到的数据,只关心聚合结果,提高效率
    • aggs:声明这是一个聚合查询,是aggregations的缩写
      • popular_colors:给这次聚合起一个名字,任意。
        • terms:划分桶的方式,这里是根据词条划分
          • field:划分桶的字段

     2)桶内度量

    ● 求平均值

    GET /cars/_search
    {
        "size" : 0,
        "aggs" : { 
            "popular_colors" : { 
                "terms" : { 
                  "field" : "color"
                },
                "aggs":{
                    "avg_price": { 
                       "avg": {
                          "field": "price" 
                       }
                    }
                }
            }
        }
    }
    • aggs:我们在上一个aggs(popular_colors)中添加新的aggs。可见度量也是一个聚合,度量是在桶内的聚合
    • avg_price:聚合的名称
    • avg:度量的类型,这里是求平均值
    • field:度量运算的字段

    ● 桶内嵌套桶

    GET /cars/_search
    {
        "size" : 0,
        "aggs" : { 
            "popular_colors" : { 
                "terms" : { 
                  "field" : "color"
                },
                "aggs":{
                    "avg_price": { 
                       "avg": {
                          "field": "price" 
                       }
                    },
                    "maker":{
                        "terms":{
                            "field":"make"
                        }
                    }
                }
            }
        }
    }
    • 原来的color桶和avg计算我们不变
    • maker:在嵌套的aggs下新添一个桶,叫做maker
    • terms:桶的划分类型依然是词条
    • filed:这里根据make字段进行划分

    新的聚合maker被嵌套在原来每一个color的桶中,每个颜色下面都根据 make字段进行了分组

    3)阶梯分桶Histogram

    GET /cars/_search
    {
      "size":0,
      "aggs":{
        "price":{
          "histogram": {
            "field": "price",
            "interval": 5000,
            "min_doc_count": 1
          }
        }
      }
    }
    • interval:阶梯间隔
    • min_doc_count:约束最少文档数量为1,过滤文档数量为0的桶

    附:es常用类型

    • String类型,又分两种:

      • text:可分词,不可参与聚合
      • keyword:不可分词,数据会作为完整字段进行匹配,可以参与聚合
    • Numerical:数值类型,分两类

      • 基本数据类型:long、interger、short、byte、double、float、half_float
      • 浮点数的高精度类型:scaled_float。需要指定一个精度因子,比如10或100。elasticsearch会把真实值乘以这个因子后存储,取出时再还原。
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  • 原文地址:https://www.cnblogs.com/naixin007/p/12088752.html
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