javax.el.PropertyNotFoundException：com.example.Bea我有結(jié)果Query query = session.createQuery("From Pool as p left join fetch p.poolQuestion as s");查詢和我想在JSP上顯示它。我有循環(huán)：<c:forEach items="${pools}" var="pool">
<p>${pool.name}</p></c:forEach>我想顯示池問題表(即聯(lián)接表)的結(jié)果。我想顯示的值是“答案”。我該怎么做？<c:forEach items="${pools}" var="pool">
<p>${pool.answer}</p>
<p>${pool.name}</p> </c:forEach>上面的代碼不起作用。錯誤是： org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/views/home.jsp at line 2118:
<c:forEach items="${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$400(BeanELResolver.java:191)
at javax.el.BeanELResolver.property(BeanELResolver.java:300)
at javax.el.BeanELResolver.getValue(BeanELResolver.java:81)
at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
at org.apache.el.parser.AstValue.getValue(AstValue.java:123)
at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:938)
at org.apache.jsp.WEB_002dINF.views.home_jsp._jspx_meth_c_005fforEach_005f0(home_jsp.java:119)模式是：public List<Pool> getAll(){
Session session = sessionFactory.getCurrentSession();
Query query = session.createQuery("From Pool as p left join fetch p.poolQuestions as s");
return query.list();主計(jì)長是：List<Pool> pool = poolService.getAll();model.addAttribute("pools", pool);其觀點(diǎn)是：<c:forEach items="${pools}" var="pool">
<p>${pool.name}</p>
<c:out value="${pool.answer}"/></c:forEach>PS。這個${pool.name}正確顯示
javax.el.PropertyNotFoundException：com.example.Bea
喵喵時光機(jī)
2019-06-18 13:15:39