JPQL参数类型错误

Question

In my current project I'm using hibernate JPA as a persistence library. And I'm getting strange error when setting the parameters to the query.

I have the following:

List<Location> loca = JPA.em().createQuery(
    "SELECT location FROM Location as location"
    + " where "
    + "( 6371 * acos(cos(PI() / 180 * :platitude ) * cos(PI() / 180 *location.latitude  ) * "
    + "cos(PI() / 180 *location.longitude  - PI() / 180 *:plongitude ) + sin( PI() / 180 *:platitude) * "
    + "sin(PI() / 180 *location.latitude ) ) ) < :radius")
    .setParameter("radius", 10000.0)
    .setParameter("platitude", new Double(latitude))
    .setParameter("plongitude", new Double(longitude))
    .getResultList();

The result error is:

[IllegalArgumentException: Parameter value [43.239474] was not matching type [java.lang.Integer]]

But this value cannot be cast to integer because of loss of precision.

Any suggestions?

Answer 1

If you're using Hibernate under JPA, you can resolve this problem by using the Hibernate session directly. I had the same problem and couldn't find another way.

The following should work:

Session session = (Session) JPA.em().getDelegate();
List<Location> loca = session.createQuery(
    "SELECT location FROM Location as location"
    + " where "
    + "( 6371 * acos(cos(PI() / 180 * :platitude ) * cos(PI() / 180 *location.latitude  ) * "
    + "cos(PI() / 180 *location.longitude  - PI() / 180 *:plongitude ) + sin( PI() / 180 *:platitude) * "
    + "sin(PI() / 180 *location.latitude ) ) ) < :radius")
    .setParameter("radius", 10000.0, new DoubleType())
    .setParameter("platitude", new Double(latitude), new DoubleType())
    .setParameter("plongitude", new Double(longitude), new DoubleType())
    .list();

Answer 2

JPA expects a Double type parameter value for :radius. So just update the radius parameter assignment as ;

.setParameter("radius", new Double(10000.0))