<sj:select>不呼吁采取行动 [英] <sj:select> not calling action

问题描述

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.

推荐答案

(评论太长.拼凑了与您的片段类似的部分版本.)

(Too long for comment. Cobbled together a partial version of something similar to your snippets.)

主要问题是您的结果将 root 设置为 cities，这意味着返回的 JSON 没有 cities 键，因此自动完成的 list 属性不知道从哪里获取其数据.

The primary issue is that your result sets root to cities, meaning the returned JSON has no cities key, so the autocomplete's list attribute doesn't know where to get its data.

也就是说:这个版本中的 selectBox 功能有一些时髦的东西；当我删除该属性时，我会在键入时看到数据，将其设置为 true，我什么也得不到.

That said: there is something funky with the selectBox functionality in this version; when I remove that attribute I see data when I type, with it set to true, I get nothing.

然而，我没有看到选择过滤，这意味着即使它正确突出显示匹配字符，也不会删除不匹配的条目；我相信他们应该是.

I don't, however, see selection filtering, meaning that even though it's correctly highlighting matching characters, non-matching entries aren't being removed; I believe they should be.

无关，但为什么要费心从 VO 创建地图呢?除非我有正当理由(例如，CityVO 太大或包含敏感信息)，否则只需使用 listKey 和 listValue 属性并使用服务已经返回.

Unrelated, but why bother creating a map from the VOs? Unless I had a decent reason (e.g., CityVO is too big or contains sensitive info) just use the listKey and listValue attributes and use what the service already returns.

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