Elasticsearch之CURL命令的GET
2024-10-01 03:04:36
这是个查询命令。
前期博客
Elasticsearch之CURL命令的PUT和POST对比
1、
以上是根据员工id查询。
即在任意的查询字符串中添加pretty参数，es可以得到易于我们识别的json结果。（这一点必须要会）
[hadoop@master elasticsearch-2.4.]$ curl -XGET http://master:9200/zhouls/user/1
{"_index":"zhouls","_type":"user","_id":"","_version":,"found":true,"_source":{"name" : "john" , "age" : }}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XGET http://master:9200/zhouls/user/1?pretty
{
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john",
"age" :
}
}
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
2、由此，可见，检索文档中的一部分，可以只查询，只需要显式部分字段。
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/1?_source=name,age&pretty'
{
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"age" : ,
"name" : "john"
}
}
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/1?_source=name&pretty'
{
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john"
}
}
[hadoop@master elasticsearch-2.4.]$
3、查询指定索引库的指定类型的所有数据
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/_search'
{"took":,"timed_out":false,"_shards":{"total":,"successful":,"failed":},"hits":{"total":,"max_score":1.0,"hits":[{"_index":"zhouls","_type":"user","_id":"","_score":1.0,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"","_score":1.0,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"AVz5Q9u7U8bDb6QDgbDS","_score":1.0,"_source":{"name" : "john"}},{"_index":"zhouls","_type":"user","_id":"","_score":1.0,"_source":{"name" : "john" , "age" : }}]}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/_search?pretty'
{
"took" : ,
"timed_out" : false,
"_shards" : {
"total" : ,
"successful" : ,
"failed" :
},
"hits" : {
"total" : ,
"max_score" : 1.0,
"hits" : [ {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_score" : 1.0,
"_source" : {
"name" : "john",
"age" :
}
}, {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_score" : 1.0,
"_source" : {
"name" : "john",
"age" :
}
}, {
"_index" : "zhouls",
"_type" : "user",
"_id" : "AVz5Q9u7U8bDb6QDgbDS",
"_score" : 1.0,
"_source" : {
"name" : "john"
}
}, {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_score" : 1.0,
"_source" : {
"name" : "john",
"age" :
}
} ]
}
}
[hadoop@master elasticsearch-2.4.]$
4、根据条件进行查询
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/_search?q=name:john'
{"took":,"timed_out":false,"_shards":{"total":,"successful":,"failed":},"hits":{"total":,"max_score":1.0,"hits":[{"_index":"zhouls","_type":"user","_id":"","_score":1.0,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"AVz5Q9u7U8bDb6QDgbDS","_score":1.0,"_source":{"name" : "john"}},{"_index":"zhouls","_type":"user","_id":"","_score":0.30685282,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"","_score":0.30685282,"_source":{"name" : "john" , "age" : }}]}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$ curl -XGET 'http://master:9200/zhouls/user/_search?q=age:28'
{"took":,"timed_out":false,"_shards":{"total":,"successful":,"failed":},"hits":{"total":,"max_score":1.4054651,"hits":[{"_index":"zhouls","_type":"user","_id":"","_score":1.4054651,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"","_score":0.30685282,"_source":{"name" : "john" , "age" : }},{"_index":"zhouls","_type":"user","_id":"","_score":0.30685282,"_source":{"name" : "john" , "age" : }}]}}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
官网
https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-get.html
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