elasticsearch 的post put 方式的对比 setting mapping设置

1.POST和PUT都可以用于创建

2.PUT是幂等方法，POST不是。所以post用户更新，put用于新增比较合适。 

参考：https://yq.aliyun.com/articles/366099

https://www.bbsmax.com/A/xl56bqb15r/    curl -XGET http://192.168.79.131:9200/shb01/_settings?pretty  curl -XPUT http://192.168.79.131:9200/shb03-d'{"settings":{"number_of_shards":4,"number_of_replicas":2}}'

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1.post

curl -XPOST http://192.168.1.49:9200/test/user/1  
  -H 'cache-control: no-cache' 
  -H 'content-type: application/json'  -d '{"name" : "john" }'            ==>指定id
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curl -XPOST http://192.168.1.49:9200/test/user/11
-H 'cache-control: no-cache'
-H 'content-type: application/json'  -d '{"name" : "john" }'

非幂等性，可以用来修改记录
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 curl -XPOST http://192.168.1.49:9200/test/user  
  -H 'cache-control: no-cache' 
  -H 'content-type: application/json'  -d '{"name" : "john"}'
不指定id，自动生成

2.put

curl -XPUT http://192.168.1.49:9200/test/user/22/_create    -H 'cache-control: no-cache'   -H 'content-type: application/json{"name" : "john" }' 指定id
------------------------------------------------------幂等性，不能重复操作
curl -XPUT http://192.168.1.49:9200/test/user/22/_create    -H 'cache-control: no-cache'   -H 'content-type: application/json{"name" : "john222" }'
version conflict, document already exists