<sj:select>不呼吁采取行动

我觉得这是一个非常简单的解决方案，但我很难过.我一整天都在四处搜索，但我的代码似乎与工作示例的代码相匹配.我正在使用 Struts+SpringMVC+Hibernate，我正在用 jQuery 标签替换我所有的 dojo 标签.jQuery 下拉列表未调用关联的操作.

I feel this is a really easy fix but I'm stumped. I've been searching around all day but my code seems to match that of working examples. I'm using Struts+SpringMVC+Hibernate and I'm in the process of replacing all my dojo tags with jQuery tags. The jQuery dropdown is not calling the associated action.

相关代码如下:

Struts.xml

<action name="getListOfCities" class="cityActions">
        <result type="json">
            <param name="root">cities</param>
        </result>
</action>   

Page.jsp

<s:url id="cityList" action="getListOfCities"/>
     <sj:autocompleter name="cities" href="%{cityList}" list="cities" selectBox="true"/>

CityAction.java

public class CityActions implements ModelDriven<CityVO> {

CityService cityService;
private Map<String, String> cities = new HashMap<String, String>();
CityVO city = new CityVO();

public void setCityService(CityService cityService) {
    this.cityService = cityService;
}

public CityVO getModel(){
    return city;
}

public String execute() {
    return Action.SUCCESS;
}   

public String addCity(){
    try{
        cityService.addCity(city);
        return "SUCCESS";}
    catch(Exception e){
        return "ERROR";
    }catch(Throwable t){
        return "ERROR";
    }
}

public Map<String, String> getCities() {
    List<CityVO> cityList = cityService.listCities();

    Iterator<CityVO> iterator = cityList.iterator();
    while (iterator.hasNext()) {
        CityVO fac = iterator.next();
        cities.put(fac.getCityName(), Integer.toString(fac.getCityId()));
    }
    return cities;
}   

下拉菜单显示但未填充.这是我之前的工作正常:

The dropdown menu shows up but is unpopulated. This is what I had before which worked fine:

<s:url id="cityList" action="getListOfCities" />
<sx:autocompleter href="%{cityList}" name="cities" keyValue="0" value="---- SELECT ONE-----"/>

有没有人有办法解决这个问题?我已经确定添加

Does anyone have a solution to this? I've made sure to add

<%@ taglib prefix="sj" uri="/struts-jquery-tags"%> 

和内部头部:

<sj:head jqueryui="true"/>

谢谢.