ElasticSearch Index API && Mapping

ElasticSearch  NEST Client 操作Index

                 var indexName="twitter";

                var deleteIndexResponse = client.DeleteIndex(indexName);
                var createIndexResponse = client.CreateIndex(indexName);
                var getIndexResponse = client.GetIndex(indexName);
                var indexExistsResponse = client.IndexExists(indexName);
                var openIndexResponse=client.OpenIndex(indexName);
                var closeIndexResponse=client.CloseIndex(indexName);

 

1.创建Index

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PUT twitter { }

 

2.删除Index

DELETE /twitter

3.获取Index

GET /twitter

4.检查是否存在Index

HEAD twitter

5.打开关闭Index

POST /twitter/_close

POST /twitter/_open

PUT mapping

1.创建Index 同时为字段添加Mapping

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PUT twitter {   "mappings": {     "tweet": {       "properties": {         "message": {           "type": "text"         }       }     }   } }

 2.给已存在的Index添加文档类型，同时指定Mapping

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PUT twitter/_mapping/user {   "properties": {     "name": {       "type": "text"     }   } }

 3.给已经存在的Mapping添加新的字段Mapping

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PUT twitter/_mapping/tweet {   "properties": {     "user_name": {       "type": "text"     }   } }

 注意：通常来说，已经存在的 字段Mapping 是不能够被修改的。

Get Mapping API

获取整个文档的Mapping信息

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1	GET /twitter/_mapping/tweet

 Get Field Mapping API

获取指定字段的Mapping信息

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1	GET publications/_mapping/article/field/title