在JPQL查询中使用数组

Question

如何在JPQL查询中使用数组列表？我想要这样的东西： 我正在通过这个

private static final String[] MASKS = {"30109", "30111"};

到

public List<Account> findAccount(String[] Masks){
StringBuilder sb = new StringBuilder("from AccountTable a where SUBSTRING(a.Account,1,5) in :Masks ");
Query q = em.createQuery(sb.toString(), AccountTable.class)
                .setParameter("Masks",Masks);
}

目前，错误是

Encountered array-valued parameter binding, but was expecting [java.lang.String (n/a)]; nested exception is java.lang.IllegalArgumentException: Encountered array-valued parameter binding, but was expecting [java.lang.String (n/a)]

Answer 1

阅读this site似乎有可能，但您的数组必须是Collection，可能是这样的：

public List<Account> findAccount(String[] Masks){
    StringBuilder sb = new StringBuilder("from AccountTable a where SUBSTRING(a.Account,1,5) in :Masks ");
    Query q = em.createQuery(sb.toString(), AccountTable.class)
                .setParameter("Masks", Arrays.asList(MASKS));
}

应该帮助你。