使用遍历数组、Collection、List、Set、Map等

昨天帮一位朋友改了一段代码，做个记录：

public Collection test(final Serializable officeNo) {
  Office[] offices = this.listOffice(officeNo);  
  Collection<Map> tree = new ArrayList<Map>();
  if(!Utils.isBlank(offices)){   
   for(int j=0;j<offices.length;j++){
    if((!Utils.isBlank(offices[j]))){     
     Member[] members = memberService.findMembersByOfficeNo(offices[j].getOfficeNo());
     Map<Office,Member[]> relationMap = new HashMap<Office,Member[]>();
     relationMap.put(offices[j], members);      
     tree.add(relationMap);    
    }
   }
  }
  
  return tree;
 }

在页面中遍历tree：

<logic:present name="tree" scope="request">
    <logic:iterate name="tree" id="relationMap">
        <logic:iterate id="element" name="relationMap">
            <bean:write name="element" property="key.officeNumber"/>    
            <logic:notEmpty name="element" property="value">
                <logic:iterate id="member" name="element" property="value">          
                    <bean:write name="member" property="member的名字"/>
                </logic:iterate>
            </logic:notEmpty>
        </logic:iterate>
    </logic:iterate>
</logic:present>

当然要显示成树的形式还需要一些修饰！