高手来帮下这个Web问题，java.lang.reflect.InvocationTargetException

[Crazy_Mouse]

DAO类：
public List selectAll() throws DataException{
Session s = HbmUtil.getSessionFactory().getCurrentSession();
List l = null;
String hql = "from Product product";
try {
l = s.createQuery(hql).list();
} catch (HibernateException e) {
e.printStackTrace();
throw new DataException("selectAll");
}
return l ;
}
Service类：
public List listProducts() {
Session s = HbmUtil.getSessionFactory().getCurrentSession();
Transaction tran = null;
List l = null;
try {
tran = s.beginTransaction();
l = dao.selectAll();
tran.commit();
} catch (Exception e) {
e.printStackTrace();
if (tran != null)
tran.rollback();
}
return l;
}
测试类测试都没有问题，然后加上Web就抛了这个异常：
20:45:07,718 ERROR DispatchAction:293 - Dispatch[/login] to method 'list' returned an exception
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:270)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:187)
at org.apache.struts.actions.MappingDispatchAction.execute(MappingDispatchAction.java:169)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ExceptionInInitializerError
at com.phoenix.shoppingcart_v1_1.service.impl.ShoppingCartServiceHbmImpl.listProducts(ShoppingCartServiceHbmImpl.java:121)
at com.phoenix.shoppingcart_v1_1.action.ShoppingAction.list(ShoppingAction.java:22)
... 27 more
Caused by: java.lang.SecurityException: class "org.apache.commons.collections.SequencedHashMap"'s signer information does not match signer information of other classes in the same package
at java.lang.ClassLoader.checkCerts(Unknown Source)
at java.lang.ClassLoader.preDefineClass(Unknown Source)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1847)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:873)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1326)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at org.hibernate.mapping.Table.<init>(Table.java:33)
at org.hibernate.cfg.Mappings.addTable(Mappings.java:165)
at org.hibernate.cfg.HbmBinder.bindRootPersistentClassCommonValues(HbmBinder.java:290)
at org.hibernate.cfg.HbmBinder.bindRootClass(HbmBinder.java:273)
at org.hibernate.cfg.HbmBinder.bindRoot(HbmBinder.java:144)
at org.hibernate.cfg.Configuration.add(Configuration.java:669)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:504)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:566)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
at com.phoenix.shoppingcart_v1_1.util.HbmUtil.<clinit>(HbmUtil.java:12)
... 29 more
Struts-config.xml:
<action-mappings >
<action path="/login" type="com.phoenix.shoppingcart_v1_1.action.ShoppingAction" parameter="list">
<forward name="list" path="/list.jsp" />
</action>
</action-mappings>

[Crazy_Mouse]

Action:
public ActionForward list(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response)throws Exception {
HttpSession session = request.getSession();
List list = scs.listProducts();
System.out.println(list);
session.setAttribute("list", list);
return mapping.findForward("list");
}

[老紫竹]

class "org.apache.commons.collections.SequencedHashMap"'s signer information does not match signer information of other classes in the same package

以前遇到过，原因是你的某个jar的版本不兼容，
commons 的几个你都排查一下，删除老版本的，只保留最新的。
包括tomcat路径和你的项目路径

[fosjos]

<action ... parameter="method">

url：login.do?method=list