ElasticSearch实现拼音搜索

事先准备好工具

下载分词器（选择对应的版本）版本必须和es的版本一直否则报错！

https://github.com/medcl/elasticsearch-analysis-pinyin/releases （拼音分词器）

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

将分词器解压出来后，得到三个文件

1.在es的plugins目录下新建一个pinyin的目录

mkdir pingyin

2.将这三个文件放到pinyin的目录下

节点的配置：

• 1.删除 index

DELETE /index_name/
{
}

• 2.创建一个 index_name 的 index

PUT /index_name/
{
    "index": {
        "analysis": {
            "analyzer": {
                "ik_pinyin_analyzer": {
                    "type": "custom",
                    "tokenizer": "ik_max_word",
                    "filter": ["my_pinyin", "word_delimiter"]
                }
            },
            "filter": {
                "my_pinyin": {
                    "type": "pinyin",
                    "first_letter": "prefix",
                    "padding_char": " "
                }
            }
        }
    }
}

• 3.修改 type 的 mapping

设置每个属性涉及到的配置

PUT /index_name/app/_mapping
{
    "app": {
        "properties": {
            "ProductCName": {
                "type": "keyword",
                "fields": {
                    "pinyin": {
                        "type": "text",
                        "store": false,
                        "term_vector": "with_positions_offsets",
                        "analyzer": "ik_pinyin_analyzer",
                        "boost": 10
                    }
                }
            },
            "ProductEName":{  
                "type":"text",  
                "analyzer": "ik_max_word"  
            },
            "Description":{  
                "type":"text",  
                "analyzer": "ik_max_word"  
            }
        }
    }
}

• 4.创建测试数据

DELETEPUT /index_name/app/1
{
  "ProductCName":"口红世家",
  "ProductEName":"Red History",
  "Description":"口红真是很棒的东西呢"
}

• 5.测试拼音分词效果

POST /index_name/_analyze?pretty
{
  "analyzer": "pinyin",
  "text":"王者荣耀"
}