curl -X POST "http://localhost:9200/music/_open" # 打开索引 关闭索引 (_close)
curl -X GET 'http://localhost:9200/_cat/indices?v' #查看索引
curl 'localhost:9200/_mapping?pretty=true' #列出每个 Index 所包含的 Type
curl 'localhost:9200/accounts/person/_search' #查看某个索引下全部记录