对于带有嵌套逻辑迭代标记的bean错误的属性值，没有getter方法

Question

我试图迭代一个ArrayList"sampleBeanList"在我的jsp使用逻辑：迭代。每个SampleBean对象都包含一个变量ArrayList"subBeanList"。我使用另一个逻辑：迭代标签内的第一个标签迭代，这样，一旦提交的形式，我可以检索的数据形式的ArrayList"sampleBeanList"和ArrayList"subBeanList"变量为每个SampleBean.我相应地添加了setters和getters，如下所示。但是，我不能理解这个问题，因为当我运行时，我得到了以下错误：

“bean子BeaneElement的属性值没有getter方法”

源代码：

JSP:

<logic:iterate id="toFamilyElement" name="myRolloverForm" property="sampleBeanList" indexId="toFamilyIndex"  type="MYRolloverFamilyBean">
    <tr>    
        <td align="center">
            <%=sno%>    
        </td>
        <td align="center" rowspan="<bean:write name="toFamilyElement" property="toFamilyListSize"/>">
            <bean:write name="toFamilyElement" property="fromFamily"/>
        </td>   
        <td align="center" rowspan="<bean:write name="toFamilyElement" property="toFamilyListSize"/>">
            <IMG src="images/rightArrow.png" width="35px" height="30px" />
        </td>
        <td align="center">
            <table width="100%" height="100%" border="1" cellpadding="0" cellspacing="0">
                <%int toFamilyListCount = 0; %>
                <logic:iterate id="subBeanElement" name="toFamilyElement" property="toFamilyList" indexId="toFamilyListIndex" type="String">
                    <html:hidden styleId='<%="toFamilyCode[" + toFamilyCount+"]["+toFamilyListCount+"]"%>' indexed="true" name="subBeanElement" property="value"/>
                    <tr>
                        <td>
                            <bean:write name="subBeanElement" property="value"/>
                        </td>
                    </tr>
                    <%toFamilyListCount++; %>
                </logic:iterate>
            </table>
        </td>
    </tr>
    <%toFamilyCount++; 
    sno++;%>    
</logic:iterate>

MYRolloverForm（包含SampleBeanList变量的表单bean）：

public class MYRolloverForm extends ActionForm {


    private ArrayList<SampleBean> sampleBeanList= new ArrayList<SampleBean>();

    public ArrayList<SampleBean> getSampleBeanList() {
        return sampleBeanList;
    }

    public void setSampleBean(ArrayList<SampleBean> sampleBeanList) {
        this.sampleBeanList = sampleBeanList;
    }

    public void setToFamilyElement(int index, SampleBean value) {
        this.sampleBeanList.add(value);
    }

    public SampleBean getToFamilyElement(int index) {
        int size = sampleBeanList.size();
        while (index >= size) {
            sampleBeanList.add(new SampleBean());
            size = sampleBeanList.size();
        }
        return this.sampleBeanList.get(index);
    }
}

SampleBean（包含子BeanList）：

public class SampleBean implements Serializable {

    private ArrayList<String> subBeanList = new ArrayList<String>();

    public ArrayList<String> getSubBeanList() {
        return subBeanList;
    }

    public void setSubBeanList(ArrayList<String> subBeanList) {
        this.subBeanList = subBeanList;
    }

    public void setSubBeanElement(int index, String value) {
        this.subBeanList.add(value);
    }

    public String getSubBeanElement(int index) {
        int size = subBeanList.size();
        while (index >= size) {
            subBeanList.add(new String());
            size = subBeanList.size();
        }
        return this.subBeanList.get(index);
    }
}

请提出解决方案！！！

Answer 1

我有问题。我试图在第二个逻辑中获取字符串元素的属性“值”：迭代循环。这就是为什么我得到上面的错误。我修改了ArrayList，而不是ArrayList，我使用ArrayList，其中OptionBean是一个定义有“值”变量的类。它解决了我的问题。谢谢你的回答：）

Answer 2

我认为您将列表中的元素与每个元素的属性混为一谈：

name应该是bean（一个SampleBean），而value应该是要访问的属性的名称（subBeanElement）：

<logic:iterate id="mySample" name="toFamilyElement" property="toFamilyList" indexId="toFamilyListIndex" type="String">
    <html:hidden styleId='<%="toFamilyCode[" + toFamilyCount+"]["+toFamilyListCount+"]"%>' indexed="true" name="mySample" property="subBeanElement"/>
    <tr>
        <td>
            <bean:write name="mySample" property="subBeanElement"/>
        </td>
    </tr>
    <%toFamilyListCount++; %>
</logic:iterate>