Java 冬眠-春天的哈弗森公式

哈弗森公式

SELECT 
   id, 
  (3959 * acos(cos(radians(37)) * cos(radians(lat)) * cos(radians(lng) 
    - radians(-122)) + sin(radians(37)) * sin(radians(lat)))) AS distance 
FROM markers 
HAVING distance < 25 
ORDER BY distance LIMIT 0 , 20

我尝试使用Hibernate编写：

String query = "SELECT *, ( 3959 * acos( cos( radians(?) ) * cos( radians( Vehicle.lat ) ) * cos( radians( Vehicle.lng ) - radians(-?) ) + sin( radians(37) ) * sin( radians( Vehicle.lat ) ) ) ) AS distance FROM VehicleDetails Vehicle HAVING distance < 25 ORDER BY distance LIMIT 0 , 20";

Object[] params  = {lat,lng};

List<VehicleDetails> vehicledata = getHibernateTemplate().find(query,params);

例外：org.hibernate.hql.ast.QuerySyntaxException:

如果没有GROUPBY子句，则不需要having子句，可以使用where。我相信错误是由于*在第一个选择中，您可能希望重写为

SELECT Vehicle.*, ( 3959 * acos( cos( radians(?) ) * cos( radians( Vehicle.lat ) ) * cos( radians( Vehicle.lng ) - radians(-?) ) + sin( radians(37) ) * sin( radians( Vehicle.lat ) ) ) ) AS distance FROM VehicleDetails Vehicle where distance < 25 ORDER BY distance LIMIT 0 , 20"

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Pradeep，我已经更新了查询，这是我得到的错误-Exception:'org.hibernate.hql.ast.QuerySyntaxException:应为IDENT，在第1行第17列附近找到*[选择Vehicle.*3959*acos cos radians*cos radians Vehicle.lat*cos radians Vehicle.lng-弧度-？+sin弧度37*sin radians Vehicle.lat作为与com.app.account.Vehicle的距离，其中距离小于25，按距离限制0,20]'