Struts2.5关于<s:action.../>标签找不到Action的问题

本文详细介绍了如何确保Struts2的标签能够正确找到对应的Action,包括Action名称与struts.xml文件中定义的actionname匹配,以及确保命名空间的一致性等关键步骤。通过示例代码展示了具体的实现方式。

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这个问题调试了一早上,网上查了很多的资料,终于是解决了。


若要保证标签能找到相应的Action,得满足以下条件(其他地方不出错的话):
1、保重Action的名字正确,与struts.xml中action name相匹配。
2、命名空间,这个很重要,我一直出错的原因就是这个问题,在jsp页面上的命名空间一定要和struts.xml的命名空间保持一致,默认的命名空间:namespce="/"需要都加上

附上自己的代码,以供大家验证调试:
s-action.jsp

<body>

下面调用第一个Action,并将结果包含到本页面中。<br>
<s:action name="tag1" executeResult="true" namespace="/"></s:action>
<hr>
调用第二个Action阻止本页面请求参数传入
<s:action name="tag2" executeResult="true" ignoreContextParams="true" namespace="/"/>
<hr>
第三个Action,不包含本页面中
<s:action name="tag2" executeResult="false" namespace="/"/>
本页面是否可访问?<s:property value="author"/>
</body>

struts.xml

<package name="gzy" namespace="/" extends="struts-default">
        <action name="tag1" class="gzy.TagAction" >
            <!-- 定义三个逻辑视图和物理资源之间的映射 -->
            <result name="done">/Loginsucc.jsp</result>
        </action>
        <action name="tag2" class="gzy.TagAction" method="login">
            <!-- 定义三个逻辑视图和物理资源之间的映射 -->
            <result name="done">/succ.jsp</result>
        </action>
    </package>

TagAction.java:

package gzy;

import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;

public class TagAction extends ActionSupport{
    private String author;
    public void setAuthor(String author){
        this.author=author;
    }
    public String getAuthor(){return author;}
    public String execute() throws Exception{
        return "done";
    }
    public String login() throws Exception{
        ActionContext.getContext().put("acthor", getAuthor());
        return "done";
    }
}
<?xml version="1.0" encoding="UTF-8" ?> <!-- /* * $Id: struts-plugin.xml 722219 2008-12-01 20:41:26Z 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. */ --> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" "http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <bean class="com.inc.sbu.view.FreeMarkerPageFilter" static="true" optional="true"/> <constant name="struts.ognl.allowStaticMethodAccess" value="true" /> <constant name="struts.convention.relative.result.types" value="freemarker,dispatcher"/> <constant name="struts.convention.action.mapAllMatches" value="true"/> <constant name="struts.convention.package.locators" value="web,action" /> <constant name="struts.convention.default.parent.package" value="yk-default"/> <constant name="struts.convention.result.path" value="/pages"/> <constant name="struts.convention.result.flatLayout" value="true"/> <constant name="struts.i18n.encoding" value="gbk" /> <constant name="struts.i18n.reload" value="false" /> <constant name="struts.devMode" value="false" /> <constant name="struts.serve.static.browserCache" value="false"/> <constant name="struts.configuration.xml.reload" value="false" /> <constant name="struts.custom.i18n.resources" value="globalMessages" /> <constant name="struts.freemarker.manager.classname" value="customFreemarkerManager" /> <constant name="struts.multipart.saveDir" value="/tmp"/> <constant name="struts.multipart.maxSize" value="1000000000" /> <constant name="struts.ui.theme" value="simple"/> <constant name="struts.action.extension" value="xhtml,,json" /> <constant name="struts.enable.DynamicMethodInvocation" value="true"/> <package name="yk-default" extends="struts-default"> <result-types> <result-type name="jasper" class="org.apache.struts2.views.jasperreports.JasperReportsResult"/> <result-type name="json" class="org.apache.struts2.json.JSONResult"/> </result-types> <interceptors> <interceptor class="com.inc.sbu.struts.AuctionInterceptor" name="auctionInterceptor"/> <interceptor class="com.inc.sbu.struts.TokenInterceptor" name="incTokenInterceptor"/> <interceptor class="com.inc.sbu.struts.WorkFlowInterceptor" name="incFlowInterceptor"/> <interceptor class="com.inc.sbu.util.FileUploadInterceptor" name="fileUploadInterceptor"/> <interceptor class="com.inc.sbu.struts.ClewInterceptor" name="clewInterceptor"/> <interceptor-stack name="bidStack"> <interceptor-ref name="exception"/> <interceptor-ref name="alias"/> <interceptor-ref name="servletConfig"/> <interceptor-ref name="prepare"/> <interceptor-ref name="profiling"/> <interceptor-ref name="staticParams"/> <interceptor-ref name="actionMappingParams"/> <interceptor-ref name="params"> <param name="excludeParams">dojo\..*,^struts\..*</param> </interceptor-ref> <interceptor-ref name="conversionError"/> <interceptor-ref name="auctionInterceptor"/> </interceptor-stack> <interceptor-stack name="subStack"> <interceptor-ref name="exception"/> <interceptor-ref name="alias"/> <interceptor-ref name="servletConfig"/> <interceptor-ref name="i18n"/> <interceptor-ref name="prepare"/> <interceptor-ref name="chain"/> <interceptor-ref name="profiling"/> <interceptor-ref name="scopedModelDriven"/> <interceptor-ref name="fileUploadInterceptor"/> <interceptor-ref name="fileUpload"/> <interceptor-ref name="checkbox"/> <interceptor-ref name="staticParams"/> <interceptor-ref name="actionMappingParams"/> <interceptor-ref name="params"> <param name="excludeParams">dojo\..*,^struts\..*</param> </interceptor-ref> <interceptor-ref name="conversionError"/> <interceptor-ref name="validation"> <param name="excludeMethods">input,inputxy,back,cancel,browse</param> </interceptor-ref> <interceptor-ref name="clewInterceptor"> <param name="excludeMethods">login,loginManager,logout,index</param> </interceptor-ref> <interceptor-ref name="incTokenInterceptor"/> </interceptor-stack> </interceptors> <default-interceptor-ref name="subStack"/> <global-results> <result name="invalid.token">/pages/error/repeat-submit.jsp</result> <result name="clew" type="dispatcher">/pages/clew.jsp</result> <result name="manage-clew" type="dispatcher">/pages/manage-clew.jsp</result> <result name="auction-clew" type="dispatcher">/pages/auction-clew.jsp</result> <result name="syserror" type="dispatcher">/pages/error.jsp</result> <result name="validerror" type="dispatcher">/pages/error.jsp</result> <result name="frontpurviewerror" type="dispatcher">/pages/error/frontpurviewerror.jsp</result> <result name="frontloginerror" type="dispatcher">/pages/error/frontpurviewerror.jsp</result> <result name="fronterror" type="dispatcher">/pages/error/frontticketerror.jsp</result> <result name="filenotfound" type="dispatcher">/pages/error/filenotfound.jsp</result> <result name="login" type="redirect">/login</result> <result name="adminLogin" type="dispatcher">/login.jsp</result> <result name="login" type="redirect">/login</result> <result name="entran" type="redirect">/entran</result> <!-- <result name="adminLogin" type="dispatcher">/login.jsp</result> --> <result name="auctionAdminError" type="redirect">/auction/adminLogin</result> <result name="auctionActorError" type="redirect">/auction/login</result> </global-results> </package> <!-- Overwrite Convention --> </struts> 我现在需要重写fileUpload,即不再使用fileUpload的拦截器,需要怎么配置
最新发布
08-01
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