简介
本文介绍FreeMarker的list的用法。
大小
Java
ArrayList<String> list = new ArrayList<String>();
Freemaker
${list?size}
遍历list
<#list animals as being> <tr> <td>${being.name}${being.price}<td> </tr> </#list>
遍历MAP
<#list map?keys as k> <option value="${k}">${map[k]}</option> </#list>
下标序号
_index是list的一个属性
<#list list as a> ${a_index} </#list>
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]}
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]}
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) ${kcVO.kcm} </#if> </#list> </#list>
list排序
升序 .sort_by()
<#list list?sort_by("字段") as x> </#list>
降序 .sort_by()?reverse
<#list list?sort_by("字段")?reverse as x> </#list>
item_has_next,size
<#list userList as user> <#if !user_has_next> 共有${userList?size}最后一个用户是:${user.userName} </#if> </#list>
请先
!