相关疑难解决方法(0)

我有结果

Query query = session.createQuery("From Pool as p left join fetch p.poolQuestion as s");

查询,我想在JSP上显示它.

我有循环:

<c:forEach items="${pools}" var="pool"> 

    <p>${pool.name}</p>

</c:forEach>

我想显示poolQ​​uestion表(连接表)的结果.我想要显示的值是"回答".

我该怎么做？

<c:forEach items="${pools}" var="pool"> 
    <p>${pool.answer}</p>
    <p>${pool.name}</p>             
</c:forEach>

上面的代码不起作用.

错误是:

  org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/home.jsp at line 21

18:     <c:forEach items="${pools}" var="pool"> 
19:             
20:             <p>${pool.name}</p>
21:             <c:out value="${pool.poolQuestion.answer}"/>
22:             
23:     </c:forEach>
24: 

    SEVERE: Servlet.service() for servlet appServlet threw exception
javax.el.PropertyNotFoundException: Property 'answer' not found on type com.pool.app.domain.Pool
    at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:214)
    at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:191)
    at javax.el.BeanELResolver.property(BeanELResolver.java:300)
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:81)
    at …