freemarker中的list

freemarker list (长度,遍历,下标,嵌套,排序)

1. freemarker获取list的size :

Java


ArrayList<String> list = new ArrayList<String>();

Freemaker


${list?size}

2. list的遍历:


<#list animals as being>
   <tr>
       <td>${being.name}${being.price}<td>
   </tr>
</#list>

3. 遍历MAP


<#list map?keys as k>
   <option value="${k}">${map[k]}</option>
</#list>

4.list遍历中的下标序号:

_index是list的一个属性


<#list list as a>
    ${a_index}
</#list>

5.取LIST中第i个元素的值


${list[i]}

嵌套时前面要有括号,如下,将字符串变成list,然后取第i个元素的值

${(str?split(","))[i]}


6. list的嵌套:


<#list jsskList as jsskVO>
  <#list kcList as kcVO>
          <#if kcVO.kch=jsskVO.kch> (kcVO里有编号和名称,而jsskVO里只有编号)
                 ${kcVO.kcm}
          </#if>
  </#list>
</#list>

7. list排序:

     升序 .sort_by()


<#list list?sort_by("字段") as x>
</#list>

    降序 .sort_by()?reverse


<#list list?sort_by("字段")?reverse as x>
</#list>

8.item_has_next,size使用:


<#list userList as user>
 <#if !user_has_next>
  共有${userList?size}最后一个用户是:${user.userName}
 </#if>
</#list>



原文链接:http://zhuyuehua.iteye.com/blog/1975251

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