struts标签 checkboxlist 换行解决办法

struts标签 checkboxlist  默认是不换行的，显示列表会非常丑，百度了一圈解决办法就是要修改源文件

找到struts core的jar包 找到template -simple 找到checkboxlist.ftl这个文件

修改如下

<#--/*修改s:checkboxlist 增加换行功能；调用方法<S:checkboxlist template="customcheckboxlist.ftl"> *  * $Id: customcheckboxlist.ftl 6484 2009-12-14 02:33:28Z alvis.yeo $ * * 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?exists>  <@s.iterator value="parameters.list">       <#assign itemCount = itemCount + 1/>        <#if parameters.listKey?exists>            <#assign itemKey = stack.findValue(parameters.listKey)/>       <#else>            <#assign itemKey = stack.findValue('top')/>      </#if>       <#if parameters.listValue?exists>            <#assign itemValue = stack.findString(parameters.listValue)/>        <#else>            <#assign itemValue = stack.findString('top')/>        </#if> <#assign itemKeyStr=itemKey.toString() /> <#if itemCount-1%3 == 0><tr width="100%"></#if><td width="200px"><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 parameters.title?exists>title="${parameters.title?html}"<#rt/>        </#if>         <#include "/${parameters.templateDir}/simple/scripting-events.ftl" />         <#include "/${parameters.templateDir}/simple/common-attributes.ftl" />     /> <label for="${parameters.name?html}-${itemCount}" class="checkboxLabel">${itemValue?html}</label> </td> <#if itemCount%3 == 0></tr></#if>   </@s.iterator>   </tr></table><#else>   </#if>

将修改后的文件 放到工程下 src 新建一个包template.simple 将此文件放到包下

如图：

以上是三个一组然后换行 根据自己需要对应的调整：

效果：