javax.el.PropertyNotFoundException:在类型java.lang.String上找不到属性'tname'

Question

我之前使用过scriptlet,但现在我切换到了mvc.我无法在JSP页面上检索值并获得错误:

javax.el.PropertyNotFoundException: Property 'tname' not found on type java.lang.String

豆的代码:

public class regForm extends org.apache.struts.validator.ValidatorForm implements Iprafunctions {

    private String tname = null;
    private String tfee = null;

    public String getTfee() {
        return tfee;
    }

    public void setTfee(String tfee) {
        this.tfee = tfee;
    }

    public String getTname() {
        return tname;
    }

    public void setTname(String tname) {
        this.tname = tname;
    }
    public regForm() {
        super();
    }
}

动作控制器:

public ActionForward mvc(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    regForm reg = (regForm) form;
    String sql = "Select tname,tfee from addtest order by tname";
    ResultSet rs = SQLC.getData(sql, null);
    Collection myBeans = new ArrayList();
    while (rs.next()) {
        String testname = rs.getString("tname");
        String testfee = rs.getString("tfee");
        reg.setTname(testname);
        reg.setTfee(testfee);
        myBeans.add(reg.getTname());
        myBeans.add(reg.getTfee());
    }
    request.setAttribute("myBeans", myBeans);
    return mapping.findForward(SUCCESS);
}

在JSP页面中访问

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<table>
    <tr><td>Name</td><td>Fee</td></tr>
    <c:forEach var="reg" items="${myBeans}">
        <tr>
            <td><c:out value="${reg.tname}"></c:out></td>
            <td><c:out value="${reg.tfee}"></c:out></td>
        </tr>
    </c:forEach>
</table>

Answer 1

实际上你正在添加字符串Collection,你正试图调用

getTName() 通过 ${reg.tname}

将整个bean添加到您的集合中或者只是将JSTL替换为 ${reg}