您是否为文档指定了geo_point映射？
curl -XDELETE 'http://localhost:9200/twitter/'curl -XPUT 'http://localhost:9200/twitter/'curl -XPUT 'http://localhost:9200/twitter/tweet/_mapping' -d '{ "tweet" : { "properties" : { "locations" : {"type" : "geo_point"} } }}'curl -XPUT 'http://localhost:9200/twitter/tweet/1' -d '{ "user": "kimchy", "postDate": "2009-11-15T13:12:00", "message": "Trying out Elastic Search, so far so good?", "locations" : [{ "lat" : 50.00, "lon" : 10.00 }, { "lat" : 40.00, "lon" : 9.00 }]}'curl -XPUT 'http://localhost:9200/twitter/tweet/2' -d '{ "user": "kimchy", "postDate": "2009-11-15T13:12:00", "message": "Trying out Elastic Search, so far so good?", "locations" : [{ "lat" : 30.00, "lon" : 8.00 }, { "lat" : 20.00, "lon" : 7.00 }]}'curl -XGET 'http://localhost:9200/twitter/tweet/_search' -d '{ "query": { "filtered" : { "query" : { "match_all" : {} }, "filter" : { "geo_distance" : { "distance" : "20km", "tweet.locations" : { "lat" : 40.00, "lon" : 9.00 } } } } }}'
