Spring 无效属性'；环境ID'；属于bean类。Bean属性'；环境ID'；不可读或具有无效的getter方法

我正在后端返回模型对象。我正在尝试创建从后端到前端的下拉数据。但我遇到了不可读的异常

这是我的密码

public class Customer {
private Environments envrironmentId;
private Environments environmentName;
 getters and setters
}

这是我的控制器层

@RequestMapping(value="/environments",method = RequestMethod.GET)
    public ModelAndView getenvironments(HttpServletRequest request,
            HttpServletResponse response,@ModelAttribute("customer") Customer customer,@RequestParam String selectedcustomername) throws Exception{
        System.out.println("selected cust name"+selectedcustomername);
        ModelAndView model = null;  
        Map<String, Object> map = new HashMap<String, Object>();
        List<org.mvc.domain.Environments> environmentNames = loginDelegate.getEnvironments(selectedcustomername);
        Collections.sort(environmentNames, new CustomComparator());

        for(int i=0;i<environmentNames.size()-1;i++){
            customer.setEnvrironmentId(environmentNames.get(0));
            customer.setEnvironmentName(environmentNames.get(1));
        }
        map.put("environmentNames", environmentNames);
        model = new ModelAndView("welcome", "map", map);
        return model;

    }

---

谁能帮我一下吗？

你的字段名为

environmentId

而不是

environmentId

。这只是一个类型错误。，。请显示你的getter和setter（并修复你的输入错误，那么错误很可能会消失）。getter的返回类型与setter的参数类型匹配吗？如果您阅读此错误，您将能够理解问题。检查字段environmentId的bean getter方法

<form:form method="get" action="retrieve" modelAttribute="customer" commandName="customer">

    <b>Environment:</b>
                            <form:select path="environmentId" id="environmentDetails">                                                                                                                                                  
                            <option selected="selected">Select An Environment</option>
                            <form:options items="${map.environmentNamesList}" itemLabel="environmentName" itemValue="environmentId"/>                                                                                                                                                       
                            </form:select>
                         </td>

org.apache.jasper.JasperException: org.springframework.beans.NotReadablePropertyException: Invalid property 'environmentId' of bean class [org.mvc.domain.Customer]: Bean property 'environmentId' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?