你妹的,Doubleselect标签，用了半天，还没搞清楚怎么回事，求解

CaptainGan 2012-06-10 11:39:32

使用doubleselect标签实现2个下拉框的联动，在自己构建数据的时候，就格式很好的展现。
但是在从数据库中取数据出来展现的时候，总是展现第一级，奶奶的，第二级从来没有出现过，神马原因，我自己都不清楚。

大家帮我找哈原因。

下面贴出关键代码。

从数据库中取数据的方法。



	/**

	 * 获得一级分类列表

	 * @param enterpId

	 * @param catelogType

	 * @return

	 * @throws Exception

	 */

	public List<TbCatelog> getFirstCatelogList(int enterpId,int catelogType)throws Exception{

		Map<String, Object> argsMap = new HashMap<String, Object>();

		argsMap.put("enterpId", enterpId);

		argsMap.put("catelogType", catelogType);

		return this.getListByQuery("GET_FIRST_CATELOGLIST_BYENTERPID_CATELOGTYPE", argsMap);

	}







/**

	 * 获得二级分类映射对象

	 * @param catelogType

	 * @return

	 * @throws Exception

	 */

	public Map<Integer, List<TbCatelog>> getSecondCatelogMap(int enterpId,int catelogType) throws Exception{

		List<TbCatelog> firstCatelogList = new ArrayList<TbCatelog>();

		TbCatelog catelog = new TbCatelog();

		catelog.setCatelogid(0);

		catelog.setCatelogname("请选择一级分类");

		firstCatelogList.add(catelog);

		firstCatelogList = this.getFirstCatelogList(enterpId, catelogType);

		Map<Integer, List<TbCatelog>> subCatelogMap = new HashMap<Integer, List<TbCatelog>>();

		if (firstCatelogList!=null) {

			for (TbCatelog tbCatelog : firstCatelogList) {

				if (tbCatelog!=null) {

					List<TbCatelog> subCatelogList = new ArrayList<TbCatelog>();

					TbCatelog subCatelog = new TbCatelog();

					subCatelog.setCatelogid(0);

					subCatelog.setCatelogname("请选择二级分类");

					subCatelogList.add(subCatelog);

					subCatelogList = this.getSubCatelogList(tbCatelog.getCatelogid());

					subCatelogMap.put(tbCatelog.getCatelogid(), subCatelogList);

				}

			}

		}

		return subCatelogMap;

	}

下面是Action中加载数据的方法



	private List<TbCatelog> selectCatelogList = new ArrayList<TbCatelog>();

	private Map<Integer, List<TbCatelog>> mapCatelogMap = new HashMap<Integer, List<TbCatelog>>();

	/**

	 * 加载分类选择数据

	 * @return

	 */

	public String loadCatelogSelect(){

		if (enterpId!=0) {

			try {

				//加载一级分类列表

				//加载第二级分类列表MAP



				selectCatelogList = catelogService.getFirstCatelogList(enterpId, 0);

				mapCatelogMap = catelogService.getSecondCatelogMap(enterpId, 0);

				return Const.SELECT_OK;

			} catch (Exception e) {

				e.printStackTrace();

			}

		}

		return null;

	}







	public List<TbCatelog> getSelectCatelogList() {

		return selectCatelogList;

	}



	public void setSelectCatelogList(List<TbCatelog> selectCatelogList) {

		this.selectCatelogList = selectCatelogList;

	}



	public Map<Integer, List<TbCatelog>> getMapCatelogMap() {

		return mapCatelogMap;

	}



	public void setMapCatelogMap(Map<Integer, List<TbCatelog>> mapCatelogMap) {

		this.mapCatelogMap = mapCatelogMap;

	}

下面是doubleselect的标签填写



<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

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

<%@ taglib prefix="sx" uri="/struts-dojo-tags"%>

<%

	String path = request.getContextPath();

	String basePath = request.getScheme() + "://"

			+ request.getServerName() + ":" + request.getServerPort()

			+ path + "/";

%>



<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

	<head>

		<meta http-equiv="pragma" content="no-cache">

		<meta http-equiv="cache-control" content="no-cache">

		<meta http-equiv="expires" content="0">

		<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">

		<meta http-equiv="description" content="This is my page">

		<style>

.doubleselect br {

	display: none;

}

</style>

	</head>

	<body>

		<s:form name="doubleSelectForm" action="loadNewsCatelogAction">

			<div class="doubleselect">

				<s:doubleselect formName="doubleSelectForm" list="selectCatelogList"

					listKey="catelogid" listValue="catelogname"

					doubleList="mapCatelogMap.get(top.catelogid)" doubleListKey="catelogid"

					doubleListValue="catelogname"

					doubleName="doubleSelectEntity.subCatelogId" />

			</div>

		</s:form>

	</body>

</html>