1、更新索引设置：将副本减至0，修改索引分析器为ik_max_word和检索分词器为ik_smart
2、需要先将索引关闭，然后再PUT setings
POST user/_close
PUT user/_settings
{
"number_of_replicas": 0,
"index":{
"analysis.analyzer.default.type":"ik_max_word",
"analysis.search_analyzer.default.type":"ik_smart"
}
}
POST user/_open