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Operation of ES

2022-07-18 15:05:00 【Little garbage in the computer】

es It is used to search for unstructured , Using an inverted index ,es Creating an index is equivalent to creating a database .
（1） Create index , Yes, it is put Method to carry out ,uri Followed by the name of the index
Insert picture description here （2） Check this out es All indexes created
Insert picture description here （3） Look at a single index , You can just follow the name of an index

（4） Add data to the corresponding data
http://127.0.0.1:9200/ Index name /_doc
Remember to use the format json The format of , And the method of sending amount is post, If not post That would be wrong

（5） Conditions of the query
You can not query all the data corresponding to the index , Only query the data you want
Insert picture description here （6） Query the specified fields
Insert picture description here

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