Struts2 变成单例了，怎么破？

我的系统是使用S2SH框架的，用的是DWZ富客户端。现在的问题是，在不同的客户端登陆，竟然共享了查询条件。附上web.xml代码、struts代码和Action的一部分
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>webApp.bestAudit</param-value>
</context-param> <!-- 指定Spring的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>WEB-INF/*Context.xml </param-value>
</context-param> <!-- 指定以Listener方式启动Spring容器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener> <!-- 配置Struts 2.1的核心控制器StrutsPrepareAndExecuteFilter --> <filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list> <mime-mapping>
<extension>xml</extension>
<mime-type>text/xml</mime-type>
</mime-mapping>
</web-app><?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE struts PUBLIC
        "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
        "http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<!-- 设置Action的请求后缀为.action,防止Struts2.1将无后缀请求亦当成正常的Action请求处理 -->
<constant name="struts.action.extension" value="action"/>
<!-- 设置Web应用的默认编码集为gbk -->
<constant name="struts.i18n.encoding" value="utf-8"/>
<!-- 设置Web应用的默认Locale为zh_CN -->
<constant name="struts.locale" value="zh_CN" />
<!-- 设置Struts2.1应用的国际化资源文件，多个文件中间可用逗号分隔 -->
<constant name="struts.custom.i18n.resources" value="messageResource"/>
<!-- 设置Struts2.1默认的ObjectFactory为spring -->
<constant name="struts.objectFactory" value="spring" />
<!-- 设置Struts2.1应用是否处于开发模式，通常在开发调试阶段设为true,正式上线后可设为false -->
<constant name="struts.devMode" value="true" />
<!-- 设置Struts2.1允许静态方法调用 -->
<constant name="struts.ognl.allowStaticMethodAccess" value="true" />
<!-- 设置Struts2.1的默认主题为simple -->
<constant name="struts.ui.theme" value="simple" />
<constant name="struts.objectFactory" value="spring" />
<package name="bestAudit" extends="struts-default"> </package>

<package name="order" extends="bestAudit" namespace="/order" >
<action name="query*Order" class="originalOrderAction" method="query{1}Order">
     <result name="success">/order/{1}OrderList.jsp</result>
     </action>
     <action name="download*Order" class="originalOrderAction" method="download{1}Order">
     <result name="excel" type="stream">
               <param name="contentType">application/vnd.ms-excel</param>
               <param name="inputName">excelStream</param>
               <param name="contentDisposition">attachment;filename="${fileName}"</param>
               <param name="bufferSize">8200</param>
        </result>
     </action>
    
     <action name="query*Comparison" class="orderComparisonAction" method="query{1}Comparison">
     <result name="success">/order/{1}ComparisonList.jsp</result>
     </action>
     <action name="download*Comparison" class="orderComparisonAction" method="download{1}Comparison">
     <result name="excel" type="stream">
               <param name="contentType">application/vnd.ms-excel</param>
               <param name="inputName">excelStream</param>
               <param name="contentDisposition">attachment;filename="${fileName}"</param>
               <param name="bufferSize">8200</param>
        </result>
     </action>
    
     <action name="queryUnusualResult" class="unusualResultAction" method="queryUnusualResult">
     <result name="success">/order/UnusualResultList.jsp</result>
     </action>
     <action name="downloadUnusualResult" class="unusualResultAction" method="downloadUnusualResult">
     <result name="excel" type="stream">
               <param name="contentType">application/vnd.ms-excel</param>
               <param name="inputName">excelStream</param>
               <param name="contentDisposition">attachment;filename="${fileName}"</param>
               <param name="bufferSize">8200</param>
        </result>
     </action>
     <action name="closeUnusualList" class="unusualResultAction" method="closeUnusualList">
     <result name="success">/order/UnusualResultList.jsp</result>
     </action>
     <action name="processingReason" class="unusualResultAction" method="processingReason">
     <result name="processingReason">/order/ProcessingReason.jsp</result>
     <result name="processingReasonList">/order/ProcessingReasonList.jsp</result>
     </action>
     <action name="viewUnusualOrder" class="unusualResultAction" method="viewUnusualOrder">
     <result name="created">/view/UnusualCreatedOrder.jsp</result>
     <result name="fulfilled">/view/UnusualFulfilledOrder.jsp</result>
     <result name="closed">/view/UnusualClosedOrder.jsp</result>
     <result name="error"></result>
     </action>
    
     <action name="query*UnPushTime" class="originalOrderAction" method="query{1}UnPushTime">
     <result name="success">/view/UnPushTime.jsp</result>
     </action>
     <action name="get*UnPushTime" class="originalOrderAction" method="get{1}UnPushTime">
     <result name="success">/ajax/success.html</result>
     </action>
</package>
</struts>public class UnusualResultAction extends ActionSupport{ /**
 * 根据前台传的参数搜索符合条件的异常单据
 * @return
 */
public String queryUnusualResult(){
String hql = this.getHql();//通过条件组成查询语句
totalCount = orderComparisonService.countUnusualResult("select count(*) " + hql);
unusualResultList = orderComparisonService.queryUnusualResult(hql, pageNum, numPerPage);
return "success";
}
@Autowired
private WmsClosedOrderService wmsClosedOrderService;

//查询条件
private QueryCommandVo queryCommandVo; public QueryCommandVo getQueryCommandVo() {
return queryCommandVo;
}
public void setQueryCommandVo(QueryCommandVo queryCommandVo) {
this.queryCommandVo = queryCommandVo;
}}Struts2