Hibernate 错误NullPointException
写我的句子时出错:Hibernate 错误NullPointException,hibernate,jakarta-ee,jpa,syntax-error,Hibernate,Jakarta Ee,Jpa,Syntax Error,写我的句子时出错: public List findWithName(String name) { return em.createQuery( "SELECT c FROM Customer c WHERE c.name LIKE :custName") .setParameter("custName", name) .setMaxResults(10) .getResultList(); } 我得到java.lang.NullPointerExceptionerrorem为null
public List findWithName(String name) {
return em.createQuery( "SELECT c FROM Customer c WHERE c.name LIKE :custName") .setParameter("custName", name)
.setMaxResults(10)
.getResultList();
}
我得到java.lang.NullPointerException
errorem为null?
尝试:
编辑:是的,使用调试器
Query query = em.createQuery(...);
query.setParameter(..);
query.setMaxResult(10);
return query.getResultList();