安装es

1、安装 Elasticsearch 之前，你需要先安装一个较新版本的 JDK;
2、从 elastic 的官网 <u>elastic.co/downloads/elasticsearch</u> 获取最新版本的 Elasticsearch，下载并解压适合你操作系统的 Elasticsearch 版本；
3、编辑配置文件

# 集群名称
cluster.name: dev-es
# 结点名称
node.name: node-dev1

# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
path.data: ./path/to/data
#
# Path to log files:
#
path.logs: ./path/to/logs
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
bootstrap.memory_lock: false
bootstrap.system_call_filter: false
#
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 192.168.16.21
#
# Set a custom port for HTTP:
#
http.port: 9200
#
#以下参数是关于ip的访问策略，如果你发现其他ip地址访问不了就有可能是这两个参数没有配置
http.cors.enabled: true
http.cors.allow-origin: "*"
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
discovery.zen.ping.unicast.hosts: ["192.168.16.21", "192.168.16.22" ,"192.168.16.23"]
#
# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):
#
discovery.zen.minimum_master_nodes: 2
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
gateway.recover_after_nodes: 3
#

3、进入bin目录，执行elasticsearch脚本启动，这样启动的所有配置为默认配置。

安装IK插件

1、下载es的IK插件：https://github.com/medcl/elasticsearch-analysis-ik/tree/v5.6.3
2、使用maven对下载的es-ik源码进行编译(mvn clean package -DskipTests)
3、把编译后的target/releases下的elasticsearch-analysis-ik.zip文件拷贝到ES_HOME/plugins/ik目录下面，然后使用unzip命令解压
4、重启es

验证安装结果
v5.6.3

curl -XGET 'http://192.168.16.21:9200/_analyze?pretty&analyzer=standard' -d'认真学习，天天向上'

{
  "tokens" : [
    {
      "token" : "认",
      "start_offset" : 0,
      "end_offset" : 1,
      "type" : "<IDEOGRAPHIC>",
      "position" : 0
    },
    {
      "token" : "真",
      "start_offset" : 1,
      "end_offset" : 2,
      "type" : "<IDEOGRAPHIC>",
      "position" : 1
    },
    {
      "token" : "学",
      "start_offset" : 2,
      "end_offset" : 3,
      "type" : "<IDEOGRAPHIC>",
      "position" : 2
    },
    {
      "token" : "习",
      "start_offset" : 3,
      "end_offset" : 4,
      "type" : "<IDEOGRAPHIC>",
      "position" : 3
    },
    {
      "token" : "天",
      "start_offset" : 5,
      "end_offset" : 6,
      "type" : "<IDEOGRAPHIC>",
      "position" : 4
    },
    {
      "token" : "天",
      "start_offset" : 6,
      "end_offset" : 7,
      "type" : "<IDEOGRAPHIC>",
      "position" : 5
    },
    {
      "token" : "向",
      "start_offset" : 7,
      "end_offset" : 8,
      "type" : "<IDEOGRAPHIC>",
      "position" : 6
    },
    {
      "token" : "上",
      "start_offset" : 8,
      "end_offset" : 9,
      "type" : "<IDEOGRAPHIC>",
      "position" : 7
    }
  ]
}

curl -XGET 'http://192.168.16.22:9200/_analyze?pretty&analyzer=ik_max_word' -d'认真学习，天天向上'

{
  "tokens" : [
    {
      "token" : "认真学习",
      "start_offset" : 0,
      "end_offset" : 4,
      "type" : "CN_WORD",
      "position" : 0
    },
    {
      "token" : "认真",
      "start_offset" : 0,
      "end_offset" : 2,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "学习",
      "start_offset" : 2,
      "end_offset" : 4,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "天天向上",
      "start_offset" : 5,
      "end_offset" : 9,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "天天",
      "start_offset" : 5,
      "end_offset" : 7,
      "type" : "CN_WORD",
      "position" : 4
    },
    {
      "token" : "向上",
      "start_offset" : 7,
      "end_offset" : 9,
      "type" : "CN_WORD",
      "position" : 5
    }
  ]
}

curl -XGET 'http://192.168.16.22:9200/_analyze?pretty&analyzer=ik_smart' -d'认真学习，天天向上'

{
  "tokens" : [
    {
      "token" : "认真学习",
      "start_offset" : 0,
      "end_offset" : 4,
      "type" : "CN_WORD",
      "position" : 0
    },
    {
      "token" : "天天向上",
      "start_offset" : 5,
      "end_offset" : 9,
      "type" : "CN_WORD",
      "position" : 1
    }
  ]
}

v6.2.4
在kibana上执行

GET _analyze?pretty
{
  "analyzer": "ik_smart",
  "text":"好好学习，天天向上"
}

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