这是个查询命令。

 

 

前期博客

 

 

 

 

 　　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-2.4.0]$ curl -XGET http://master:9200/zhouls/user/1{
   "_index":"zhouls","_type":"user","_id":"1","_version":1,"found":true,"_source":{
   "name" : "john"  , "age" : 28}}[hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ curl -XGET http://master:9200/zhouls/user/1?pretty{  "_index" : "zhouls",  "_type" : "user",  "_id" : "1",  "_version" : 1,  "found" : true,  "_source" : {    "name" : "john",    "age" : 28  }}[hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$

 

 

 

 

 

　　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-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/1?_source=name,age&pretty'{  "_index" : "zhouls",  "_type" : "user",  "_id" : "1",  "_version" : 1,  "found" : true,  "_source" : {    "age" : 28,    "name" : "john"  }}[hadoop@master elasticsearch-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/1?_source=name&pretty'{  "_index" : "zhouls",  "_type" : "user",  "_id" : "1",  "_version" : 1,  "found" : true,  "_source" : {    "name" : "john"  }}[hadoop@master elasticsearch-2.4.0]$

 

 

 

 

　　3、查询指定索引库的指定类型的所有数据

[hadoop@master elasticsearch-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/_search'{
    "took":78,"timed_out":false,"_shards":{
   "total":5,"successful":5,"failed":0},"hits":{
   "total":4,"max_score":1.0,"hits":[{
   "_index":"zhouls","_type":"user","_id":"2","_score":1.0,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"1","_score":1.0,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"AVz5Q9u7U8bDb6QDgbDS","_score":1.0,"_source":{
   "name" : "john"}},{
   "_index":"zhouls","_type":"user","_id":"3","_score":1.0,"_source":{
   "name" : "john"  , "age" : 28}}]}}[hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/_search?pretty'{  "took" : 105,  "timed_out" : false,  "_shards" : {    "total" : 5,    "successful" : 5,    "failed" : 0  },  "hits" : {    "total" : 4,    "max_score" : 1.0,    "hits" : [ {      "_index" : "zhouls",      "_type" : "user",      "_id" : "2",      "_score" : 1.0,      "_source" : {        "name" : "john",        "age" : 28      }    }, {      "_index" : "zhouls",      "_type" : "user",      "_id" : "1",      "_score" : 1.0,      "_source" : {        "name" : "john",        "age" : 28      }    }, {      "_index" : "zhouls",      "_type" : "user",      "_id" : "AVz5Q9u7U8bDb6QDgbDS",      "_score" : 1.0,      "_source" : {        "name" : "john"      }    }, {      "_index" : "zhouls",      "_type" : "user",      "_id" : "3",      "_score" : 1.0,      "_source" : {        "name" : "john",        "age" : 28      }    } ]  }}[hadoop@master elasticsearch-2.4.0]$

 

 

 

 

 

 

 

 　　4、根据条件进行查询

[hadoop@master elasticsearch-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/_search?q=name:john'{
    "took":109,"timed_out":false,"_shards":{
   "total":5,"successful":5,"failed":0},"hits":{
   "total":4,"max_score":1.0,"hits":[{
   "_index":"zhouls","_type":"user","_id":"1","_score":1.0,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"AVz5Q9u7U8bDb6QDgbDS","_score":1.0,"_source":{
   "name" : "john"}},{
   "_index":"zhouls","_type":"user","_id":"2","_score":0.30685282,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"3","_score":0.30685282,"_source":{
   "name" : "john"  , "age" : 28}}]}}[hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ curl -XGET 'http://master:9200/zhouls/user/_search?q=age:28'{
    "took":54,"timed_out":false,"_shards":{
   "total":5,"successful":5,"failed":0},"hits":{
   "total":3,"max_score":1.4054651,"hits":[{
   "_index":"zhouls","_type":"user","_id":"1","_score":1.4054651,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"2","_score":0.30685282,"_source":{
   "name" : "john"  , "age" : 28}},{
   "_index":"zhouls","_type":"user","_id":"3","_score":0.30685282,"_source":{
   "name" : "john"  , "age" : 28}}]}}[hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$ [hadoop@master elasticsearch-2.4.0]$

 

 

 

 

 

官网

https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-get.html