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curl -XPUT "http://localhost:9200/shop/" -d '{
"mappings" : {
"shop" : {
"properties" : {
"name" : {
"type" : "string"
},
"location" : {
"type" : "geo_point" , //经纬度类型
"lat_lon" : true ,
"fielddata" : {
"format" : "compressed" , //压缩模式,节省内存
"precision" : "3m"
}
}
}
}
}
}'; curl -XPUT http: //localhost:9200/shop/shop/1 -d'
{ "name" : "北京" , "location" : "39.9047253699,116.4072154982" }
'; curl -XPUT http: //localhost:9200/shop/shop/2 -d'
{ "name" : "顺义" , "location" : "40.1299127031,116.6569478577" }
'; curl -XPUT http: //localhost:9200/shop/shop/3 -d'
{ "name" : "天津" , "location" : "39.0850853357,117.1993482089" }
'; curl -XPUT http: //localhost:9200/shop/shop/4 -d'
{ "name" : "上海" , "location" : "31.2304324029,121.4737919321" }
'; curl -XGET "http://localhost:9200/shop/shop/_search?pretty" -d '{
"query" : {
"filtered" : {
"filter" : {
"geo_distance" : {
"distance" : "28km" ,
"type" : "indexed" ,
"distance_type" : "sloppy_arc" ,
"location" : {
"lat" : 39.9682060617 ,
"lon" : 116.4107280170
}
}
}
}
},
"sort" : [ //按距离排序
{
"_geo_distance" : {
"location" : {
"lat" : 39.9682060617 ,
"lon" : 116.4107280170
},
"order" : "asc" ,
"unit" : "km" ,
"distance_type" : "sloppy_arc" //推荐适应此模式 plane 不准,精度太差
}
}
]
}' 再举一个更加实际的例子 curl -XGET "http://localhost:9200/shop/shop/_search?pretty" -d '{
"query" : {
"function_score" : {
"query" : {
"bool" : {
"filter" : {
"geo_distance" : {
"distance" : "28km" ,
"type" : "indexed" ,
"distance_type" : "sloppy_arc" ,
"location" : {
"lat" : 39.9682060617 ,
"lon" : 116.4107280170
} }
}
}
},
"functions" : [ {
"script_score" : {
"script" : {
"inline" : "return 0"
}
}
},{
"gauss" : { //按举例远近打分
"location" : {
"origin" : "39.9682060617,116.4107280170" ,
"scale" : "5km" ,
"offset" : "0" ,
"decay" : 0.5
}
},
"weight" : "1"
} ],
"score_mode" : "sum" ,
"boost_mode" : "replace"
}
}
}' 此时你会看到北京的得分是 0.25 分,因为差 5 公里,衰减 0.5 , 北京距此坐标 7 公里,所以取值 0.25 .
2.3 版本的mapping 可以写成
curl -XPUT "http://localhost:9200/shop/" -d '{
"mappings" : {
"shop" : {
"properties" : {
"name" : {
"type" : "string"
},
"location" : {
"type" : "geo_point" ,
"lat_lon" : true , //倒排索引
"geohash" : true ,
"geohash_prefix" : true ,
"geohash_precision" : "50m" }
}
}
}
}'; 其实它还支持多个地址,例如 curl -XPUT http: //localhost:9200/ext-shop/ext-shop/5 -d'
{ "name" : "京津冀" , "location" : [[ 116.4072154982 , 39.9047253699 ],[ 116.6569478577 , 40.1299127031 ]]}
'; 佩服ES的强大
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本文转自whk66668888 51CTO博客,原文链接:http://blog.51cto.com/12597095/2048249