Spring boot Springboot和thymealf循环

Spring boot Springboot和thymealf循环,spring-boot,thymeleaf,Spring Boot,Thymeleaf,希望你能帮助解决这个简单的noob问题。我使用springboot和thymeleaf创建了一个选择题。我得到了这个错误,希望您能帮助我编写控制器方法。 执行处理器“org.thymeleaf.spring4.processor.attr.springInputGeneralFieldDattrProcessor”时出错(学习:23) bean名称“选项[0]”的BindingResult和普通目标对象都不能作为请求属性使用 <form method="post" th:action="

希望你能帮助解决这个简单的noob问题。我使用springboot和thymeleaf创建了一个选择题。我得到了这个错误,希望您能帮助我编写控制器方法。 执行处理器“org.thymeleaf.spring4.processor.attr.springInputGeneralFieldDattrProcessor”时出错(学习:23) bean名称“选项[0]”的BindingResult和普通目标对象都不能作为请求属性使用

 <form method="post" th:action="@{/list}" >
    <table>
        <tr th:each="option, rowStat : *{a}">
            <td><input type="radio" th:field="*{options[__${rowStat.index}__].ansA}" th:value="A"/></td>
            <td><input type="radio" th:field="*{options[__${rowStat.index}__].ansB}" th:value="B"/></td>
        </tr>
    </table>
    <input type="submit" value="ok"/>
</form>
}

控制器

public class LearningStyleController {
    @Autowired
    LearningStyleService learningstyleservice;




    @RequestMapping("/list")
    public String learningstyle(Model model) {
       List<LearningStyle> a= learningstyleservice.findAll();
        model.addAttribute("a",a);
        return "learning";


    }

    @RequestMapping(value = "/list", method = RequestMethod.POST)
    public String learn(@ModelAttribute("a") LearningStyle learningStyle, Model model) {

//code to get list of object
return "home";
}
公共类LearningStyleController{
@自动连线
LearningStyleService LearningStyleService;
@请求映射(“/list”)
公共字符串学习样式(模型){
列表a=learningstyleservice.findAll();
model.addAttribute(“a”,a);
回归“学习”;
}
@RequestMapping(value=“/list”,method=RequestMethod.POST)
公共字符串学习(@modeldattribute(“a”)LearningStyle LearningStyle,Model Model){
//获取对象列表的代码
返回“家”;
}

我尝试此操作,但错误消失,但我的th:name在此出错!!!th:name设置在哪里?有什么错误?
public class LearningStyleController {
    @Autowired
    LearningStyleService learningstyleservice;




    @RequestMapping("/list")
    public String learningstyle(Model model) {
       List<LearningStyle> a= learningstyleservice.findAll();
        model.addAttribute("a",a);
        return "learning";


    }

    @RequestMapping(value = "/list", method = RequestMethod.POST)
    public String learn(@ModelAttribute("a") LearningStyle learningStyle, Model model) {

//code to get list of object
return "home";
}