How to query for Double with Spring JDBC template query

How do one query for a 开发者_StackOverflow社区double with the Spring JDBC temple?

For example:

public double getAverageScore() {
    return jdbctemplate.queryFor???("select avg(score) from test");
}

There are queryForInt and queryForLong, but no queryForDouble

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I haven't tested this, but queryForObject with Double.class as the last parameter might work.

public double getAverageScore() {
    return jdbctemplate.queryForObject("select avg(score) from test", Double.class);
}

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public double getAverageScore() {
    return jdbctemplate.queryForObject("select avg(score) from test", Double.class);
}

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public Double avgByCampo(Long param) {
   return simpleJdbcTemplate.queryForObject("SELECT avg(t.campo) FROM table t where t.id_campo = ?", Double.class, param);
}