insert data into es
Learned: https://www.imooc.com/video/15769/0
It is divided into two types: specified Id and automatically generated Id;
1. Specify the Id to use the PUT operation
PUT http://127.0.0.1:9200/people/man/1
{ "name":"stono", "country":"China", "age":111, "date":"1999-11-11" }
2. Automatically generate Id using POST operation
POST http://127.0.0.1:9200/people/man/
{ "name":"stono22", "country":"China", "age":22, "date":"1999-11-11" }