springtiles集成

我正在为我的网站使用Spring和tiles，我得到的错误如下 org.apache.tiles.request.render.CannotRenderException:无法呈现非字符串的属性，toString返回：null

有人能帮我吗

我的Java代码

package com.finman.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.finman.form.LoginForm;

@Controller
public class LoginAction
{
    @RequestMapping("/login")
    public ModelAndView login(Model model,LoginForm finLoginForm,HttpServletRequest request,HttpSession httpSession) throws Exception
    {

        String forward = null;

            forward = "index.path";
        return new ModelAndView(forward);
    }
}

我的tiles-defs.xml是

我的spring.xml包含

<bean id="viewResolver" class="org.springframework.web.servlet.view.tiles3.TilesViewResolver"/>
    <bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
    <property name="definitions">
        <list>
            <value>/WEB-INF/tiles-defs.xml</value>
        </list>
    </property>
</bean>

/WEB-INF/tiles-defs.xml

您还需要一个tiles配置器bean： 看

类路径：com/view/web/config/views/*.xml

您的问题是否属于or类别？我检查了这些解决方案，但没有任何帮助。

<bean id="viewResolver" class="org.springframework.web.servlet.view.tiles3.TilesViewResolver"/>
    <bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
    <property name="definitions">
        <list>
            <value>/WEB-INF/tiles-defs.xml</value>
        </list>
    </property>
</bean>

<!-- Configure Tiles -->
<bean id="tilesConfigurer" class="org.springframework.web.servlet.view.tiles3.TilesConfigurer">
    <property name="definitions">
        <list>
            <value>classpath:com/view/web/config/views/*.xml</value>
        </list>
    </property>
</bean>