Weblogic8.1和Struts1.2热部署问题的解决

在weblogic中可以成功的部署struts应用,也可以运行appc来打包ear,
当我重新编译class文件的时候必须要重启weblogic才行,这样在开发过程中只要有一点改动就要重启服务器,
就陷入了改动-打包-重启-部署的一个冗长的过程,在开发过程中可以以分散的形式来部署ear或者war,
对于jsp页面的改动服务器能马上认出来,但是有关于struts的class类的改动就抛出以下异常:

<[ServletContext(id=4247984,name=aWebApp,context-path=/aWebApp)] Servlet failed with Exception
java.lang.ClassCastException
at org.apache.struts.action.ActionServlet.getRequestProcessor(ActionServlet.java:855)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:971)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:402)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
>
可以修改weblogic.xml解决这个问题。
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE weblogic-web-app PUBLIC "-//BEA Systems, Inc.//DTD Web Application 8.1//EN" "http://www.bea.com/servers/wls810/dtd/weblogic810-web-jar.dtd">

<weblogic-web-app>
  <container-descriptor>
    <servlet-reload-check-secs>-1</servlet-reload-check-secs>
    <prefer-web-inf-classes>true</prefer-web-inf-classes>
  </container-descriptor>
  <context-root>managerWeb</context-root>
</weblogic-web-app>

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