在JPA调用数据库视图Menu,使用myeclipse的jpa reverse后,会生成两个类Menu和MenuId
进行查询时,始终报错
代码如下:
[code="java"]
String jpql = "SELECT u FROM Menu u WHERE u.id.userid = ?1";
Query query = getEntityManager().createQuery(jpql);
query.setParameter(1, users);
List
for (Menu c : queryList) {
System.out.println(c.getId()); //始终报错
}
[/code]
严重: Servlet.service() for servlet default threw exception
java.lang.NullPointerException
错误行指向System语句行