在Struts
1中，我使用了支持地图的操作表单来获取动态字段值。

public MyForm extends ActionForm {
    private final Map values = new HashMap();
    public void setValue(String key, Object value) {
       values.put(key, value);
    }
    public Object getValue(String key) {
      return values.get(key);
    }
}

以下是我使用的代码。

JSP

<form action="/SaveAction.do">
<input type="text" name="value(dynamicNames)" value="some value">
</form>

行动

public class SaveAction extends ActionSupport implements ModelDriven<MyForm> {
    private MyForm myForm = new MyForm(); 
    @Override
    public MyForm getModel() {
            return myForm;
    }
    public void setMyForm(MyForm myForm){
            this.myForm = myForm;
    }
    public MyForm getMyForm(){
            return myForm;
    }
    public String execute(){
            MyForm formData = getMyForm();//Here I am getting empty object.
            return "SUCCESS";
    }
}

形成

public MyForm {
    private final Map values = new HashMap();
    public void setValue(String key, Object value) {
       values.put(key, value);
    }
    public Object getValue(String key) {
      return values.get(key);
    }
}

如何在Struts 2中实现相同的功能？