Templates 如何使用freemarker访问列表中对象的属性以及列表对象在hashmap中的属性？

我正在尝试访问对象的属性。但我很抱歉这个错误

FreeMarker template error:
The following has evaluated to null or missing
interestRate  [in template "interestRate" at line 2, column 8]

在我的代码中，我创建了一个pojoclass对象列表，并用hasmap映射这个列表

List<InterestRateVO> list = new ArrayList<InterestRateVO>();
Map<String,List<InterestRateVO>> interestRate = new HashMap<String,List<InterestRateVO>> ();
list.add(interestRateVO);
interestRate.put(tableData[1],list);

这是我的小姑娘

public class InterestRateVO {


    private String currency;
    private String rate;
    public String getCurrency() {
        return currency;
    }
    public void setCurrency(String currency) {
        this.currency = currency;
    }
    public String getRate() {
        return rate;
    }
    public void setRate(String rate) {
        this.rate = rate;
    }

}

我用的是这个代码

<#list interestRate?keys as inter>
  ${inter} = ${interestRate[inter].currency} 
</#list>

你把兴趣图本身放在数据模型的什么地方。模板上下文？是否向视图发送interestRate？

<#list interestRate?keys as inter>
  ${inter} = ${interestRate[inter].currency} 
</#list>