javax.el.PropertyNotFoundException：com.example.Bea我有结果Query query = session.createQuery("From Pool as p left join fetch p.poolQuestion as s");查询和我想在JSP上显示它。我有循环：<c:forEach items="${pools}" var="pool">
<p>${pool.name}</p></c:forEach>我想显示池问题表(即联接表)的结果。我想显示的值是“答案”。我该怎么做？<c:forEach items="${pools}" var="pool">
<p>${pool.answer}</p>
<p>${pool.name}</p> </c:forEach>上面的代码不起作用。错误是： org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/home.jsp at line 2118:
<c:forEach items="${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$400(BeanELResolver.java:191)
at javax.el.BeanELResolver.property(BeanELResolver.java:300)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:81)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
at org.apache.el.parser.AstValue.getValue(AstValue.java:123)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:938)
at org.apache.jsp.WEB_002dINF.views.home_jsp._jspx_meth_c_005fforEach_005f0(home_jsp.java:119)模式是：public List<Pool> getAll(){
Session session = sessionFactory.getCurrentSession();
Query query = session.createQuery("From Pool as p left join fetch p.poolQuestions as s");
return query.list();主计长是：List<Pool> pool = poolService.getAll();model.addAttribute("pools", pool);其观点是：<c:forEach items="${pools}" var="pool">
<p>${pool.name}</p>
<c:out value="${pool.answer}"/></c:forEach>PS。这个${pool.name}正确显示
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