freemarker循环遍历及只显示前几个元素以及处理第一个和最后一个元素

freemarker循环遍历及只显示前几个元素

<#list beans as bean>
<#if (bean_index <= 4)>
<span>${bean.label}:</span><input name="${bean.col}" style="line-height:26px;border:1px solid #ccc">
</#if>
</#list>  

 

1、取前几条数据

<@_categoryList id=4 >

<#assign n = 0 /> // list外先定义assign
<#list page.list as column>
<#assign n = n+1 /> // list里面再定义assign
<#if n gt 3><#break></#if> // 取前三条数据
<div>
<h4>${(column.name)!}</h4>
</div>
</#list>

</@_categoryList>

2、取某一条数据

<#list page.list as column>

<#if column_index == 0> // 直接取下标
<div>
<h4>${(column.name)!}</h4>
</div>
</#if>

</#list>

freemarker遍历list处理第一个、最后一个元素

<#list depts as entity>
    <#if entity_index = 0>第一个
     '[{"id":${entity.deptId},"pid":0,"status":1,"name":"${entity.deptName}"},'+
    </#if >
    '{"id":${entity.deptId},"pid":0,"status":1,"name":"${entity.deptName}"},' +
</#list>



<#list positions as entity>
    <#if entity_has_next>
        '{"id":${entity.id},"pid":${entity.deptid},"status":1,"name":"${entity.name}"},' +
<#else >最后一个
        '{"id":${entity.id},"pid":${entity.deptid},"status":1,"name":"${entity.name}"}]');
    </#if>
</#list>

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原文链接：https://blog.csdn.net/abckingaa/article/details/117929876