编译问题：[SELECT c FROM Client c ORDER BY c.id]。 [32, 36] 状态字段路径 \'c.id\' 无法解析为有效类型答案

【问题标题】：Problem compiling: [SELECT c FROM Client c ORDER BY c.id]. [32, 36] The state field path 'c.id' cannot be resolved to a valid type编译问题：[SELECT c FROM Client c ORDER BY c.id]。 [32, 36] 状态字段路径 \'c.id\' 无法解析为有效类型
【发布时间】：2023-01-02 00:09:40
【问题描述】：

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`
// init Data Model
        private void initDataModel(){
        System.out.println("DEBUG START FORM >>> ");
        EntityManagerFactory emf = Persistence.createEntityManagerFactory("ServiciiJPA");
        em = emf.createEntityManager();
        List<Client> lst = em
        .createQuery("SELECT c FROM Client c ORDER BY c.id", Client.class)
        .getResultList();
        clienti.addAll(lst);
        if (lst != null && !lst.isEmpty()){
        Collections.sort(this.clienti, (c1, c2) ->  c1.getId().compareTo(c2.getId()));
        this.client = clienti.get(0);
        System.out.println("DEBUG: client init >>> " + client.getId());
        }

我在 Eclipse 中尝试过，但我从未解决过。

【问题讨论】：

标签： java eclipse view vaadin

【解决方案1】：

如果您使用 JPA，请发布 Client.class，否则请发布表创建代码以获取更多信息。但在您的查询中，我建议将选择更改为“SELECT c.* FROM Client c Order BY c.id”

【讨论】：