虚拟目录：

需要重启
方式1：
<Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">
        <Valve className="org.apache.catalina.valves.AccessLogValve"        directory="logs"  
               prefix="localhost_access_log." suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" resolveHosts="false"/>
   
         <context  path="/new"   docBase="c:\news" />  
</Host>

  conf\Catalina\localhost\abc.xml 文件      abc为虚拟目录 映射路径
   <Context docBase="c:\news"/>            c:\news  为虚拟目录
   1.多路径aaa#bbb
   2.默认的web应用 ROOT.xml

struts标签自动功能<s:fielderror fieldName="cheNum"/>

<ul class="errorMessage">
     <li><span>您的验证码输入有误!</span></li>
</ul>




模板在
struts2-core-2.1.8.1.jar  /template.simple   fielderror.ftl  

解决
src下 template\simple   package包  fielderror.ftl  
###############
<#--
/*
 * $Id: fielderror.ftl 805635 2009-08-19 00:18:54Z musachy $
 *
 * 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.
 */
-->
<#if fieldErrors??><#t/>
<#assign eKeys = fieldErrors.keySet()><#t/>
<#assign eKeysSize = eKeys.size()><#t/>
<#assign doneStartUlTag=false><#t/>
<#assign doneEndUlTag=false><#t/>
<#assign haveMatchedErrorField=false><#t/>
<#if (fieldErrorFieldNames?size > 0) ><#t/>
    <#list fieldErrorFieldNames as fieldErrorFieldName><#t/>
        <#list eKeys as eKey><#t/>
        <#if (eKey = fieldErrorFieldName)><#t/>
            <#assign haveMatchedErrorField=true><#t/>
            <#assign eValue = fieldErrors[fieldErrorFieldName]><#t/>
            <#if (haveMatchedErrorField && (!doneStartUlTag))><#t/>
                   <#assign doneStartUlTag=true><#t/>
            </#if><#t/>
            <#list eValue as eEachValue><#t/>
                ${eEachValue}
            </#list><#t/>            
        </#if><#t/>
        </#list><#t/>
    </#list><#t/>
    <#if (haveMatchedErrorField && (!doneEndUlTag))><#t/>
        <#assign doneEndUlTag=true><#t/>
    </#if><#t/>
<#else><#t/>    
    <#if (eKeysSize > 0)><#t/>
        <ul<#rt/>
<#if parameters.cssClass??>
 class="${parameters.cssClass?html}"<#rt/>
<#else>
 class="errorMessage"<#rt/>
</#if>
<#if parameters.cssStyle??>
 style="${parameters.cssStyle?html}"<#rt/>
</#if>
>
            <#list eKeys as eKey><#t/>
                <#assign eValue = fieldErrors[eKey]><#t/>
                <#list eValue as eEachValue><#t/>
                    <li><span><#if parameters.escape>${eEachValue!?html}

<#else>${eEachValue!}</#if></span></li>
                </#list><#t/>
            </#list><#t/>
        </ul>
    </#if><#t/>
</#if><#t/>
</#if><#t/>
###############