<s:radio>标签和<s:checkboxlist>标签实现换行

     系统定义的时候默认为横向输排列，但我们有时候需要竖向排列，实现竖向排列的方法有两种，第一种可以在标签外面加一个<div>或者<span>标签，设置它们的宽度，但是这样显示效果不是很好控制，所以我喜欢用第二种，修改ftl模版文件。

 

首先在struts2-core-xxx.jar 的template.simple里面找到checkboxlist.ftl，然后在自己项目里新建一个包 名字为template.simple，把checkboxlist.ftl文件拷贝过来，最后就在这里面重新定义自己想要显示的格式，我设置的是一行显示一个，代码如下：

 

<#--
/*
 * $Id: checkboxlist.ftl 1366934 2012-07-29 20:10:06Z jogep $
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
-->
<#assign itemCount = 0/>
<#if parameters.list??>
<@s.iterator value="parameters.list">
    <#assign itemCount = itemCount + 1/>
    <#if parameters.listKey??>
        <#assign itemKey = stack.findValue(parameters.listKey)/>
        <#else>
            <#assign itemKey = stack.findValue('top')/>
    </#if>
    <#if parameters.listValue??>
        <#assign itemValue = stack.findString(parameters.listValue)?default("")/>
        <#else>
            <#assign itemValue = stack.findString('top')/>
    </#if>
    <#if parameters.listCssClass??>
        <#if stack.findString(parameters.listCssClass)??>
          <#assign itemCssClass= stack.findString(parameters.listCssClass)/>
        <#else>
          <#assign itemCssClass = ''/>
        </#if>
    </#if>
    <#if parameters.listCssStyle??>
        <#if stack.findString(parameters.listCssStyle)??>
          <#assign itemCssStyle= stack.findString(parameters.listCssStyle)/>
        <#else>
          <#assign itemCssStyle = ''/>
        </#if>
    </#if>
    <#if parameters.listTitle??>
        <#if stack.findString(parameters.listTitle)??>
          <#assign itemTitle= stack.findString(parameters.listTitle)/>
        <#else>
          <#assign itemTitle = ''/>
        </#if>
    </#if>
    <#assign itemKeyStr=itemKey.toString() />
    <span>${itemCount}.<span/>
<input type="checkbox" name="${parameters.name?html}" value="${itemKeyStr?html}"
       id="${parameters.name?html}-${itemCount}"<#rt/>
    <#if tag.contains(parameters.nameValue, itemKey)>
       checked="checked"<#rt/>
    </#if>
    <#if parameters.disabled?default(false)>
       disabled="disabled"<#rt/>
    </#if>
    <#if itemCssClass?if_exists != "">
     class="${itemCssClass?html}"<#rt/>
    <#else>
        <#if parameters.cssClass??>
     class="${parameters.cssClass?html}"<#rt/>
        </#if>
    </#if>
    <#if itemCssStyle?if_exists != "">
     style="${itemCssStyle?html}"<#rt/>
    <#else>
        <#if parameters.cssStyle??>
     style="${parameters.cssStyle?html}"<#rt/>
        </#if>
    </#if>
    <#if itemTitle?if_exists != "">
     title="${itemTitle?html}"<#rt/>
    <#else>
        <#if parameters.title??>
     title="${parameters.title?html}"<#rt/>
        </#if>
    </#if>
    <#include "/${parameters.templateDir}/simple/css.ftl" />
    <#include "/${parameters.templateDir}/simple/scripting-events.ftl" />
    <#include "/${parameters.templateDir}/simple/common-attributes.ftl" />
        />
<label for="${parameters.name?html}-${itemCount}" class="checkboxLabel">${itemValue?html}</label>
    <#if (itemCount-1)%1 == 0>
    <br/><br/>
    </#if>
</@s.iterator>
    <#else>
     
</#if>
<input type="hidden" id="__multiselect_${parameters.id?html}" name="__multiselect_${parameters.name?html}"
       value=""<#rt/>
<#if parameters.disabled?default(false)>
       disabled="disabled"<#rt/>
</#if>
        />