Elasticsearch之CURL命令的mget查询
2024-08-30 23:13:56
我这里，
再，创建一个zhouls2的索引库。
[hadoop@master elasticsearch-2.4.]$ curl -XPUT 'http://master:9200/zhouls2/'
{"acknowledged":true}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
得到
在新创建的索引库zhouls2里，添加一条数据进去。
[hadoop@master elasticsearch-2.4.]$ curl -XPOST http://master:9200/zhouls2/user/1 -d '{"name" : "lucy" , "age" : 18}'
{"_index":"zhouls2","_type":"user","_id":"","_version":,"_shards":{"total":,"successful":,"failed":},"created":true}[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
[hadoop@master elasticsearch-2.4.]$
得到
如下，是我用mget命令，为大家演示，通过xmget命令来获取多个文档
[hadoop@master elasticsearch-2.4.]$ curl -XGET http://master:9200/_mget?pretty -d '{"docs": [{"_index":"zhouls" ,"_type":"user" ,"_id":2 ,"_source":"name"} ,{"_index":"zhouls2" , "_type":"user" ,"_id":1}]}'
{
"docs" : [ {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john"
}
}, {
"_index" : "zhouls2",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "lucy",
"age" :
}
} ]
}
[hadoop@master elasticsearch-2.4.]$
如果我们需要的文档在同一个_index或者同一个_type中，我们就可以在URL中指定一个默认的/_index或者_index/_type。
[hadoop@master elasticsearch-2.4.]$ curl -XGET http://master:9200/zhouls/user/_mget?pretty -d '{"docs": [{"_id":1} ,{"_id":2}] }'
{
"docs" : [ {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john",
"age" :
}
}, {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john",
"age" :
}
} ]
}
[hadoop@master elasticsearch-2.4.]$
如果我们的文档拥有相同的_index以及_type，直接在请求中添加ids的数组即可
[hadoop@master elasticsearch-2.4.]$ curl -XGET http://master:9200/zhouls/user/_mget?pretty -d '{"ids":["1" ,"2"]}'
{
"docs" : [ {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john",
"age" :
}
}, {
"_index" : "zhouls",
"_type" : "user",
"_id" : "",
"_version" : ,
"found" : true,
"_source" : {
"name" : "john",
"age" :
}
} ]
}
[hadoop@master elasticsearch-2.4.]$
更多，请见
Elasticsearch增删改查 之 —— mget多文档查询
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