利用OGNL语言和Struts2.0迭代标签,处理Map里嵌套Map的处理方法

1、Action的结构如下：

package com.ceno.mcps.cms.web.actions.contenttype;

import com.ceno.mcps.cms.ContentTypeManager;
import com.ceno.mcps.cms.model.ContentType;
import com.ceno.ejb.lookup.BeanLookup;

import java.util.Map;
import java.util.List;
import java.util.HashMap;
import java.util.ArrayList;

public class ToAddContentTypeAction
        extends ContentTypeAction
{
//定义JSP页面使用的List及Map;结构如下；
    private List<Long> list = new ArrayList<Long>();
    private Map<Long, Map<String, Integer>> map=new HashMap<Long, Map<String, Integer>>();

    public String execute()
            throws Exception
    {
        ContentTypeManager contentTypeManager = BeanLookup.getInstance().lookup(
                ContentTypeManager.class);
        contentTypes = contentTypeManager.getAllContentTypes();
        list.add(((Integer)1).longValue());
        list.add(((Integer)2).longValue());
        Map<String,Integer> temp1 = new HashMap<String, Integer>();
        temp1.put("temp1.1",3) ;
        temp1.put("temp1.2",4) ;
        Map<String,Integer> temp2 = new HashMap<String, Integer>();
        temp2.put("temp2.1",5) ;
        temp2.put("temp2.2",6) ;
        map.put(list.get(0), temp1);
        map.put(list.get(1), temp2);
        return SUCCESS;
    }

 

    public List<Long> getList()
    {
        return list;
    }

    public void setList(List<Long> list)
    {
        this.list = list;
    }

    public Map getMap()
    {
        return map;
    }

    public void setMap(Map map)
    {
        this.map = map;
    }
}

2、JSP页面的定义如下：

<s:iterator value="list">
   <s:select list="map.get(longValue()).entrySet()" listKey="getKey()" listValue="getValue()" name="map1"
       emptyOption="true"/>
</s:iterator>

以上即可完成现有需求；