我正在研究mongodb的地理空间查询,我已经在mongo控制台上执行了以下查询
db.items.find(
{
location:
{ $near :
{
$geometry: { type: "Point",coordinates: [77.026638,28.459497 ] },$maxDistance: 10000
}
}
}
)
但是如何使用spring数据mongodb标准编写此查询?
我尝试使用以下标准,但它无法正常工作
Criteria criteria = Criteria.where("location").near(new Point(77.026638,28.459497)).maxDistance(1000);
Query query = new Query(criteria);
System.out.println(mongoTemplate.find(query,Item.class));
堆栈跟踪
org.springframework.data.mongodb.UncategorizedMongoDbException: Unable to execute query: error processing query: ns=geolocation.items limit=0 skip=0
Tree: GEONEAR field=location maxdist=1.79769e+308 isNearSphere=0
Sort: {}
Proj: {}
planner returned error: unable to find index for $geoNear query; nested exception is com.mongodb.MongoException: Unable to execute query: error processing query: ns=geolocation.items limit=0 skip=0
Tree: GEONEAR field=location maxdist=1.79769e+308 isNearSphere=0
Sort: {}
Proj: {}
planner returned error: unable to find index for $geoNear query
at org.springframework.data.mongodb.core.MongoExceptionTranslator.translateExceptionIfPossible(MongoExceptionTranslator.java:90)
at org.springframework.data.mongodb.core.MongoTemplate.potentiallyConvertRuntimeException(MongoTemplate.java:1940)
at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1823)
at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1633)
at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1616)
at org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:535)
at org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:526)
at com.samepinch.dao.item.ItemDao$$EPWN0nhQ.getItemsByLocation(ItemDao.java:200)
at com.samepinch.dao.item.ItemDao$$DPWN0nhQ.getItemsByLocation(Unknown Source)
at com.samepinch.dao.item.ItemDao.getItemsByLocation(ItemDao.java)
at com.samepinch.services.item.ItemService.getItemsByLocation(ItemService.java:410)
at com.samepinch.controllers.item.ItemController.getItemsbyLocation(ItemController.java:222)
at com.samepinch.controllers.item.ItemController$$FastClassBySpringCGLIB$$33bec54c.invoke(
我的架构是
@Document(collection = "items")
public class Item extends BaseEntity{
private static final long serialVersionUID = 1L;
private String itemName;
private MetadataEnum categoryName;
private List
嵌入式文件是:)
public class Location {
private List
即使我找到系统索引确保
{ "v" : 1,"key" : { "_id" : 1 },"name" : "_id_","ns" : "geolocation.notification" }
{ "v" : 1,"ns" : "geolocation.preference" }
{ "v" : 1,"ns" : "geolocation.userItemHistory" }
{ "v" : 1,"ns" : "geolocation.media" }
{ "v" : 1,"ns" : "geolocation.userBasedRecommendation" }
{ "v" : 1,"ns" : "geolocation.users" }
{ "v" : 1,"ns" : "geolocation.authenticationToken" }
{ "v" : 1,"unique" : true,"key" : { "username" : 1 },"name" : "username","key" : { "email" : 1 },"name" : "email","ns" : "geolocation.userToUserHistory" }
{ "v" : 1,"ns" : "geolocation.metadata" }
{ "v" : 1,"ns" : "geolocation.mongo_data_model_map" }
{ "v" : 1,"key" : { "element_id" : 1 },"name" : "element_id_1","key" : { "long_value" : 1 },"name" : "long_value_1","ns" : "geolocation.preferenceOrder" }
{ "v" : 1,"ns" : "geolocation.counter" }
{ "v" : 1,"ns" : "geolocation.item" }
{ "v" : 1,"key" : { "location" : "2dsphere" },"name" : "location_2dsphere","ns" : "geolocation.item","2dsphereIndexVersion" : 2 }
{ "v" : 1,"ns" : "geolocation.items" }
{ "v" : 1,"ns" : "geolocation.items","2dsphereIndexVersion" : 2 }
Type "it" for more
> it
{ "v" : 1,"key" : { "a" : 1 },"name" : "a_1","ns" : "geolocation.items" }
我的数据库记录看起来像
{
"_id" : NumberLong(46602),"_class" : "com.samepinch.domain.item.Item","itemName" : "Chandigarh","categoryName" : "TRAVELLING","attributes" : [
"MOUNTAIN"
],"isAccessed" : false,"imageUrl" : "0bbd8cdb-be5c-4efc-b974-c04fb1903537itemcompressed.jpg","catagoryPreference" : "BOTH","startDate" : ISODate("2015-12-09T18:30:00Z"),"endDate" : ISODate("2015-12-09T18:30:00Z"),"location" : {
"coordinates" : [
76.76641440000003,30.72642125251779
],"type" : "Point","radius" : 8504.948210235696
},"createdDate" : ISODate("2015-12-09T10:27:42.519Z"),"updatedDate" : ISODate("2015-12-09T10:27:42.519Z")
}
我已经在集合上创建了2d spheare索引,但我不知道它为什么会给我这个错误.
最佳答案
更改数据存储而不是:
"location" : {
"coordinates" : [
76.76641440000003,30.72642125251779
],"radius" : 8504.948210235696
}
至
"location" : {
"coordinates" : [
76.76641440000003,"type" : "Point"
}
我认为对于“Point”类型你有错误的数据类型.它应该只有地理坐标的经度,纬度.你不应该包括“raduis”.
检查有效GeoJsons.
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