ElasticSearch笔记-增删改

添加文档：

添加单个文档

 POST index1/user/1000		
{
"id":1001,
"name":"张三",
"age":20,
"sex":"男"
}

如果不指定id，将随机生成一个，id的字段名是_id

删除文档：

删除指定id的文档

DELETE /blog/article2/1

按条件删除

POST index5/people/_delete_by_query?q=name:zhangsan

修改文档

覆盖文档：

ES中文档数据不能修改，可以通过覆盖的方式进行更新。所以和上面的操作相同

 POST index1/user/1001
{
"id":1001,
"name":"张三",
"age":20,
"sex":"男"
}

修改字段：

上面操作时更新整个文档，可以操作局部更新，但是实际上es内部帮我们查询这个文档，然后修改、覆盖整个文档

POST index1/user/1001/_update	
{
"doc":
      {
            "age":2000
      }
}

批量操作文档

语法

{ action: { metadata }}
{ requestbody}
{ action: { metadata }}
{ requestbody}

最后一行一定要回车

批量添加

POST index6/_doc/_bulk
{ "index": {} }
{"id":2001,"name":"name1","age": 20,"sex": "男"}
{ "index": {} }
{"id":2002,"name":"name2","age": 20,"sex": "男"}
{ "index": {} }
{"id":2003,"name":"name3","age": 20,"sex": "男"}

批量删除

POST index6/_doc/_bulk
{"delete":{"_index":"index6","_type":"_doc","_id":2001}}
{"delete":{"_index":"index6","_type":"_doc","_id":2002}}
{"delete":{"_index":"index6","_type":"_doc","_id":2003}}