struts2中simple主题下<s:fieldError>标签默认样式的移除方法

struts2中simple主题下<s:fieldError>标签默认样式的移除方法

前言

当在我们注册用户时，如果给前台的提示是用户名重复并且用户名太长时，就会要往action里面添加多个errors，这时到前台怎么把它依次拿出来

下面话不多说了，来一起看看详细的介绍吧

方法如下

①找到配置文件

struts2-core-2.3.35.jar/template/simple/fielderror.ftl（不同版本的文件路径大同小异）

②创建新的文件包并拷贝文件

在项目根目录下创建template.simple并将fielderror.ftl拷贝过来

此时根目录下的fielderror.ftl文件优先权大于默认的fielderror.ftl文件

③修改拷贝过来的fielderror.ftl文件

修改前文件如下

<#--

/*

* $Id$

*

* 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://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/>

miAIX <#if (eKey = fieldErrorFieldName)><#t/>

<#assign haveMatchedErrorField=true><#t/>

<#assign eValue = fieldErrors[fieldErrorFieldName]><#t/>

<#if (haveMatchedErrorField && (!doneStartUlTag))><#t/>

<#if parameters.id?has_content>

id="${parameters.id?html}"<#rt/>

#if>

<#if parameters.cssClass?has_content>

class="${parameters.cssClass?html}"<#rt/>

<#else>

class="errorMessage"<#rt/>

#if>

<#if parameters.cssStyle?has_content>

style="${parameters.cssStyle?html}"<#rt/>

#if>

>

<#assign doneStartUlTag=true><#t/>

#if><#t/>

<#list eValue as eEachValue><#t/>

#list><#t/>

#if><#t/>

#list><#t/>

#list><#t/>

<#if (haveMatchedErrorField && (!doneEndUlTag))><#t/>

<#assign doneEndUlTag=true><#t/>

#if><#t/>

<#else><#t/>

<#if (eKeysSize > 0)><#t/>

<#if parameters.cssClass?has_content>

class="${parameters.cssClass?html}"<#rt/>

<#else>

class="errorMessage"<#rt/>

#if>

<#if parameters.cssStyle?has_content>

style="${parameters.cssStyle?html}"<#rt/>

#if>

>

<#list eKeys as eKey><#t/>

<#assign eValue = fieldErrors[eKey]><#t/>

<#list eValue as eEachValue><#t/>

#list><#t/>

#list><#t/>

#if><#t/>

#if><#t/>

#if><#t/>

将

修改后文件如下

<#--

/*

* $Id$

*

* 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://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/>

<#if parameters.escape>${eEachmiAIXValue!?html}<#else>${eEachValue!}#if>

#list><#t/>

#if><#t/>

#list><#t/>

#list><#t/>

<#if (haveMatchedErrorField && (!doneEndUlTag))><#t/>

<#assign doneEndUlTag=true><#t/>

#if><#t/>

<#else><#t/>

<#if (eKeysSize > 0)><#t/>

<#list eKeys as eKey><#t/>

<#assign eValue = fieldErrors[eKey]><#t/>

<#list eValuehttp:// as eEachValue><#t/>

<#if parameters.escape>${eEachValue!?html}<#else>${eEachValue!}#if>

#list><#t/>

#list><#t/>

#if><#t/>

#if><#t/>

#if><#t/>

重启tomcat

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