#获取一个类型的多个文档，，有多种API写法，如下：
#1
curl -XGET ‘localhost:9200/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_index" : "test",
"_type" : "type",
"_id" : "1"
},
{
"_index" : "test",
"_type" : "type",
"_id" : "2"
}
]
}
‘
#2
curl -XGET ‘localhost:9200/test/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_type" : "type",
"_id" : "1"
},
{
"_type" : "type",
"_id" : "2"
}
]
}
‘
#3
curl -XGET ‘localhost:9200/test/type/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_id" : "1"
},
{
"_id" : "2"
}
]
}
‘
#4
curl -XGET ‘localhost:9200/test/type/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"ids" : ["1", "2"]
}
‘
#_type字段可选，如果没有指定type，则默认第一个类型中满足条件的id文档作为返回功效，下面的例子中，返回两个不异的功效
curl -XGET ‘localhost:9200/test/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"ids" : ["1", "1"]
}
‘
#可以明确指定差此外类型
curl -XGET ‘localhost:9200/test/_mget/?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_type":"typeA",
"_id" : "1"
},
{
"_type":"typeB",
"_id" : "1"
}
]
}
‘
#过滤_source
curl -XGET ‘localhost:9200/_mget?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_index" : "test",
"_type" : "type",
"_id" : "1",
"_source" : false
},
{
"_index" : "test",
"_type" : "type",
"_id" : "2",
"_source" : ["field3", "field4"]
},
{
"_index" : "test",
"_type" : "type",
"_id" : "3",
"_source" : {
"include": ["user"],
"exclude": ["user.location"]
}
}
]
}
‘
#指定stored_field字段返回 1 返回 field1，field2,2返回field3，field4
curl -XGET ‘localhost:9200/test/type/_mget?stored_fields=field1,field2&pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_id" : "1"
},
{
"_id" : "2",
"stored_fields" : ["field3", "field4"]
}
]
}
‘
#指定routing
curl -XGET ‘localhost:9200/_mget?routing=key1&pretty‘ -H ‘Content-Type: application/json‘ -d‘
{
"docs" : [
{
"_index" : "test",
"_type" : "type",
"_id" : "1",
"routing" : "key2"
},
{
"_index" : "test",
"_type" : "type",
"_id" : "2"
}
]
}
‘
批量操纵在写法上需要注意的事项：换行\n结尾； 回车\r ；开始 Content-Type头部应该被设置为application/x-ndjson；
撑持的参数：version_type;routing;wait_for_active_shards;refresh;
update操纵撑持的行动参数：retry_on_conflict;doc;doc_as_upsert;script;lang;source.
#批量操纵数据布局
action_and_meta_data \ n
optional_source \ n
action_and_meta_data \ n
optional_source \ n
....
action_and_meta_data \ n
optional_source \ n
curl -XPOST ‘localhost:9200/_bulk?pretty‘ -H ‘Content-Type: application/json‘ -d‘
{ "index" : { "_index" : "test", "_type" : "type1", "_id" : "1" } }
{ "field1" : "value1" }
{ "delete" : { "_index" : "test", "_type" : "type1", "_id" : "2" } }
{ "create" : { "_index" : "test", "_type" : "type1", "_id" : "3" } }
{ "field1" : "value3" }
{ "update" : {"_id" : "1", "_type" : "type1", "_index" : "test"} }
{ "doc" : {"field2" : "value2"} }
‘
curl -XPOST ‘localhost:9200/_bulk?pretty‘ -H ‘Content-Type: application/json‘ -d‘ { "update" : {"_id" : "1", "_type" : "type1", "_index" : "index1", "retry_on_conflict" : 3} } { "doc" : {"field" : "value"} } { "update" : { "_id" : "0", "_type" : "type1", "_index" : "index1", "retry_on_conflict" : 3} } { "script" : { "source": "ctx._source.counter += params.param1", "lang" : "painless", "params" : {"param1" : 1}}, "upsert" : {"counter" : 1}} { "update" : {"_id" : "2", "_type" : "type1", "_index" : "index1", "retry_on_conflict" : 3} } { "doc" : {"field" : "value"}, "doc_as_upsert" : true } { "update" : {"_id" : "3", "_type" : "type1", "_index" : "index1", "_source" : true} } { "doc" : {"field" : "value"} } { "update" : {"_id" : "4", "_type" : "type1", "_index" : "index1"} } { "doc" : {"field" : "value"}, "_source": true} ‘
#示例
curl -XGET ‘localhost:9200/twitter/tweet/1/_termvectors?pretty‘
#可以指定要检索的字段
curl -XGET ‘localhost:9200/twitter/tweet/1/_termvectors?fields=message&pretty‘
返回字段包罗：term infomation,term statistics,field statistics。默认返回：term infomation和field statistics。
term infomation:1.字段的term频率；2.term 位置；3.开始和结束偏移量；4.term 有效负载 即使没生存也可以计算。
term statistics :1.术语在总文档中呈现的频次 2.包罗当前术语的总文档数
field statistics ： 1.包罗该字段的文档数doc_count 2.该字段中所有term的文档总频次 sum_doc_freq 3.该term中每个term的总频次 sum_ttf