通过 Struts 2 中的 ModelDriven 将参数传递给动作

ModelDriven action:

@Namespace("/modelDriven")
public class ModelDrivenAction extends ActionSupport implements ModelDriven {

  private Gangster model = new Gangster();

  private String name; //getter and setter

  public Object getModel() {
    return model;
  }

  @Actions({
    @Action(value="modelDriven", results=@Result(location = "/modelDriven/modelDriven.jsp")),
    @Action(value="modelDrivenResult", results=@Result(location = "/modelDriven/modelDrivenResult.jsp"))
  })
  public String execute() throws Exception {
    model.setName(name);
    return SUCCESS;
  }
}

型号:

public class Gangster {
  private String name; //getter and setter
}

modelDriven.jsp:

<s:form id="modelDrivenForm" action="modelDrivenResult" method="POST" namespace="/modelDriven">    
    <s:textfield
        label="Gangster Name"
        name="[1].name"/>
    <sj:submit cssClass="btn btn-primary" executeScripts="true" targets="div1"/>
</s:form>

<div id="div1"/>

modelDrivenResult.jsp:

<s:label
    label="Gangster Name"
    name="name"/><br/>

在动作 execute 方法中，我们得到参数 name 应该由 params 拦截器填充并初始化模型属性以显示它结果.但问题是未填充参数.如何获取参数 name 被 params 拦截器填充，以便操作可以显示值?

@Action(value="modelDrivenResult", results=@Result(location = "/modelDriven/modelDrivenResult.jsp"),
  interceptorRefs = @InterceptorRef(value="defaultStack", params={
    "params.acceptParamNames", "(\[\d+\]\.)*\w+((\.\w+)|(\[\d+\])|(\(\d+\))|(\['\w+'\])|(\('\w+'\)))*"
  })
)