tomcat修改web.xml文件名

 importjavax.servlet.ServletContext;

 importorg.apache.catalina.Globals;
 importorg.apache.catalina.Lifecycle;
 importorg.apache.catalina.LifecycleEvent;
 importorg.apache.catalina.LifecycleListener;
 importorg.apache.catalina.core.StandardContext;

 /**
 *指定tomcat加载web.xml文件位置<br>
 *配置如下:修改TOMCAT_HOME/conf/servlet.xml内的context标签,在其之间加入如下语句<br>
 *<ListenerclassName="SpecifyWebXmlLifecycleListener"webXmlPath="/WEB-INF/zdb.xml"/><br>
 *<br>
 *然后拷贝本类到TOMCAT_TOMCAT/lib/目录下.
 *@authorzhangdb
 *
 */
 publicclassSpecifyWebXmlLifecycleListenerimplementsLifecycleListener{
 //web.xml文件相对位置
 privateStringwebXmlPath;

 publicvoidlifecycleEvent(LifecycleEventevent){

 Lifecyclelifecycle=event.getLifecycle();

 if("before_start".equalsIgnoreCase(event.getType())){
 StandardContextcontext=(StandardContext)lifecycle;
 ServletContextservletContext=context.getServletContext();

 StringrealWebXmlPath=context.getDocBase()+this.webXmlPath;
 servletContext.setAttribute(Globals.ALT_DD_ATTR,realWebXmlPath);
 System.out.println("substitutionweb.xmlfile:["+realWebXmlPath
 +"]!");
 }
 }

 publicStringgetWebXmlPath(){
 returnwebXmlPath;
 }

 publicvoidsetWebXmlPath(StringwebXmlPath){
 this.webXmlPath=webXmlPath;
 }


 }

tomcat的server.xml配置

<Context path="" docBase="E:\workspace\dyit-site\WebRoot">
<Listener className="SpecifyWebXmlLifecycleListener" webXmlPath="/WEB-INF/web_xml/jtt-wan-web.xml"/>
</Context>

转载自：http://www.iteye.com/topic/89067