freemarker循环、下标及判断

一、freemarker中list循环使用非常频繁，下面介绍lfreemarker中list简单的用法

　　1、在freemarker中遍历list数组使用list指令：<#list sequence as item>...</#list>；

　　其中sequence为集合（controller）的表达式，item是循环变量名（别名），不可是表达式；

　　在遍历sequence的时候会将sequence中的变量或者对象放到item中，后面使用时只需用item即可；

　　例如：<#list libraryVOs as libraryVO>

　　注： libraryVOs集合为标签集合，GroupDTO为标签组 

　　libraryVOs为sequence表达式，libraryVO为item变量；libraryVOS中有多个GroupDTO对象，在遍历时会将GroupDTO存放到libraryVO中。如果取GroupDTO中的名称

　　使用${libraryVO.applyName}；

　　2、item_index:当前迭代项在所有迭代项中的位置，是数字值。

　　3、freemarker判断<#if (x>y)></#if> 注：要使用括号括起来

　　

<ul>
    <#list libraryVOs as libraryVO>
        <li>
            <span class="content-l-title">${libraryVO.groupDto.applyName}(${libraryVO.count})：</span>
            <ul class="content-l-content">
                <#list libraryVO.labelDto as labelLibrary>
                    <#if (labelLibrary_index <= 3)>
                        <li>
                            <span class="second-title">${labelLibrary.applyName}：</span>
                            <span class='second-title hide' id='labelId${labelLibrary.autoId}'>${labelLibrary.applyName}</span>
                            <label for="checkbox10" class="checkbox${labelLibrary.autoId}0" onclick="getLabelCustom(${labelLibrary.autoId})">
                                <input type="radio" id="checkbox0${labelLibrary.autoId}" value="1" name="tag1">
                                <b><img src="${resRoot}/css/images/xianze.png" alt=""></b>
                                    自定义
                            </label>
                            <label for="checkbox11" class="checkbox${labelLibrary.autoId}1" onclick="getLabelAll(${labelLibrary.autoId})">
                                <input type="radio" id="checkbox1${labelLibrary.autoId}" value="0" name="tag1">
                                <b><img src="${resRoot}/css/images/xianze.png" alt=""></b>
                                    不限
                            </label>
                            <input id="tagSel${labelLibrary.autoId}" name="tagSel${labelLibrary.autoId}" onclick="showTag(${labelLibrary.autoId}); return false;" class="tag-item ${labelLibrary.autoId} hide" type="text" readonly value="">
                            <input id="tagSelId${labelLibrary.autoId}" name="tagSelId${labelLibrary.autoId}" type="hidden" value="" style="width:120px;">
                            <div id="tagContent${labelLibrary.autoId}" class="tagContent${labelLibrary.autoId}" style="position: absolute; left: 64px; display:none;width:160px;height:200px;overflow-y:scroll;overflow-x:auto;z-index:5555;background: #fff;">
                                <ul id="tagDemo${labelLibrary.autoId}" class="ztree"></ul>
                            </div>
                        </li>
                    </#if>
                    
                    <#if (labelLibrary_index > 3)>
                        <li class="list hide">
                             <span class="second-title">${labelLibrary.applyName}：</span>
                            <span class='second-title hide' id='labelId${labelLibrary.autoId}'>${labelLibrary.applyName}</span>
                            <label for="checkbox10" class="checkbox${labelLibrary.autoId}0" onclick="getLabelCustom(${labelLibrary.autoId})">
                                <input type="radio" id="checkbox0${labelLibrary.autoId}" value="1" name="tag1">
                                <b><img src="${resRoot}/css/images/xianze.png" alt=""></b>
                                    自定义
                            </label>
                            <label for="checkbox11" class="checkbox${labelLibrary.autoId}1" onclick="getLabelAll(${labelLibrary.autoId})">
                                <input type="radio" id="checkbox1${labelLibrary.autoId}" value="0" name="tag1">
                                <b><img src="${resRoot}/css/images/xianze.png" alt=""></b>
                                    不限
                            </label>
                            <input id="tagSel${labelLibrary.autoId}" name="tagSel${labelLibrary.autoId}" onclick="showTag(${labelLibrary.autoId}); return false;" class="tag-item ${labelLibrary.autoId} hide" type="text" readonly value="">
                            <input id="tagSelId${labelLibrary.autoId}" name="tagSelId" type="hidden" value="" style="width:120px;">
                            <div id="tagContent${labelLibrary.autoId}" class="tagContent${labelLibrary.autoId}" style="position: absolute; left: 64px; display:none;width:160px;height:200px;overflow-y:scroll;overflow-x:auto;z-index:5555;background: #fff;">
                                <ul id="tagDemo${labelLibrary.autoId}" class="ztree"></ul>
                            </div>
                        </li>
                    </#if>
                 </#list>
                 <#if (libraryVO.labelDto?size > 3)>
                     <li>
                        <span class="l-more">更多<i class="more-icon"></i></span>
                        <span class="l-close hide">收起<i class="close-icon"></i></span>
                    </li>
                </#if>
            </ul>
        </li>
    </#list>        
</ul>