二、elasticsearch安装ik中文分词器

elasticsearch-ik中文分词器下载地址：

https://github.com/medcl/elasticsearch-analysis-ik

须要注意es版本和ik版本须要安装ik的README.md对比说明进行下载。

 

我当前使用的es是5.6.0那么我须要下载

下载完成后解压：

直接将解压后的elasticsearch文件夹复制到 es的plugins文件夹里

完成后启动es

 

验证ik分词器是否生效，使用postman或者curl工具发送

分词使用ik_max_word

验证分词的结果：

{
    "tokens": [
        {
            "token": "这里是",
            "start_offset": 0,
            "end_offset": 3,
            "type": "CN_WORD",
            "position": 0
        },
        {
            "token": "这里",
            "start_offset": 0,
            "end_offset": 2,
            "type": "CN_WORD",
            "position": 1
        },
        {
            "token": "是",
            "start_offset": 2,
            "end_offset": 3,
            "type": "CN_CHAR",
            "position": 2
        },
        {
            "token": "开源",
            "start_offset": 3,
            "end_offset": 5,
            "type": "CN_WORD",
            "position": 3
        },
        {
            "token": "中国",
            "start_offset": 5,
            "end_offset": 7,
            "type": "CN_WORD",
            "position": 4
        },
        {
            "token": "社区",
            "start_offset": 7,
            "end_offset": 9,
            "type": "CN_WORD",
            "position": 5
        },
        {
            "token": "博客",
            "start_offset": 9,
            "end_offset": 11,
            "type": "CN_WORD",
            "position": 6
        }
    ]
}

分词使用ik_smart的结果

{
    "tokens": [
        {
            "token": "这里是",
            "start_offset": 0,
            "end_offset": 3,
            "type": "CN_WORD",
            "position": 0
        },
        {
            "token": "开源",
            "start_offset": 3,
            "end_offset": 5,
            "type": "CN_WORD",
            "position": 1
        },
        {
            "token": "中国",
            "start_offset": 5,
            "end_offset": 7,
            "type": "CN_WORD",
            "position": 2
        },
        {
            "token": "社区",
            "start_offset": 7,
            "end_offset": 9,
            "type": "CN_WORD",
            "position": 3
        },
        {
            "token": "博客",
            "start_offset": 9,
            "end_offset": 11,
            "type": "CN_WORD",
            "position": 4
        }
    ]
}