elasticsearch的基本操作之文档

在上一篇文章中我们介绍了elasticsearch的基本概念以及索引和索引映射的restful接口和它们之间的关系https://blog.csdn.net/weixin_42214548/article/details/107094416,今天再来给大家介绍一下elasticsearch中的文档以及它的restful接口的使用

 

文档

创建文档

POST http://127.0.0.1:9200/index_test/_doc/id

URL结尾可以指定文档的id,如果不指定文档的id则会自动生成一个id

请求参数

{
    "id":1001,
    "sex": 2,
    "realname": "大帅比",
    "username":"有退休金的老李"
}

响应

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 2,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 1,
    "_primary_term": 1
}

elasticsearch的结果

 

可以看到最后成功的响应了,并且大家可以注意返回的参数中有一个_type和_version,_type表示elasticsearch中索引的类型,但是我们创建索引的时候没有指定类型,在新版本中类型的概念已经被弱化默认就是文档,_version则是每次操作了索引之后的一个版本号,每次都会加1

 

删除文档

DELETE http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 3,
    "result": "deleted",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 2,
    "_primary_term": 1
}

 

修改文档

修改文档可以分为局部修改和全量修改,下面为大家显示一下

全量修改

PUT  http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE

{
    "id":1001,
    "sex": 2,
    "realname": "大帅比2222222",
    "username":"有退休金的老李"
}

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 2,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 4,
    "_primary_term": 1
}

局部修改

POST  http://127.0.0.1:9200/index_test/_doc/zv0HEHMBnqHViiCdQnfE/_update

{
   "doc":{
       "username":"有退休金的老李11111"
   }
}

{
    "_index": "index_test",
    "_type": "_doc",
    "_id": "zv0HEHMBnqHViiCdQnfE",
    "_version": 3,
    "result": "updated",
    "_shards": {
        "total": 2,
        "successful": 1,
        "failed": 0
    },
    "_seq_no": 5,
    "_primary_term": 1
}