elasticsearch最佳实践

Posted 2020-08-28

创建索引

1. 无mapping 
   创建索引名称为index的索引

   curl -XPUT http://localhost:9200/book

2. 有mapping

   如果需要定义每个类型的结构映射，创建type名称为user和blogpost的mapping。

   curl -XPUT "http://localhost:9200/book" -d‘
   {
   "mappings": {
   "user": { 
     "_all":       { "enabled": false  }, 
     "properties": { 
       "title":    { "type": "string"  }, 
       "name":     { "type": "string"  }, 
       "age":      { "type": "integer" }  
     }
   },
   "blogpost": { 
     "_all":       { "enabled": false  }, 
     "properties": { 
       "id":       { "type": "string"  },
       "title":    { "type": "string"  }, 
       "body":     { "type": "string"  },
       "created":  {
         "type":   "date", 
         "format": "strict_date_optional_time||epoch_millis"
       }
     }
   }
   }
   }‘

索引文件

添加四个文档

curl -XPOST http://localhost:9200/book/blogpost/1 -d‘
{"body":"美国留给伊拉克的是个烂摊子吗"}
‘
curl -XPOST http://localhost:9200/book/blogpost/2 -d‘
{"body":"公安部：各地校车将享最高路权"}
‘
curl -XPOST http://localhost:9200/book/blogpost/3 -d‘
{"body":"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"}
‘
curl -XPOST http://localhost:9200/book/blogpost/4 -d‘
{"body":"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"}
‘

 

高亮查询

curl -XPOST http://localhost:9200/book/blogpost/_search  -d‘
{
    "query" : { "term" : { "body" : "中国" }},
    "highlight" : {
        "pre_tags" : ["<tag1>", "<tag2>"],
        "post_tags" : ["</tag1>", "</tag2>"],
        "fields" : {
            "content" : {}
        }
    }
}
‘

 

删除索引

curl -XDELETE http://localhost:9200/book