Websphere启动问题

最近Websphere启动后，访问不了9080的页面，下面是日志，希望大侠帮忙指点

[10/06/28 9:27:24:178 GMT+08:00] 00000039 WebApp        E   [Servlet Error]-[Login]: java.
lang.NoClassDefFoundError: urban.util.SetCharacterEncodingFilter (initialization failure)
        at java.lang.J9VMInternals.initialize(J9VMInternals.java:123)
        at java.lang.Class.newInstanceImpl(Native Method)
        at java.lang.Class.newInstance(Class.java:1243)
        at java.beans.Beans.instantiate(Beans.java:219)
        at java.beans.Beans.instantiate(Beans.java:63)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager._loadFilter(WebAppFilterMana
ger.java:421)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager.loadFilter(WebAppFilterManag
er.java:379)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterInstanceWrapper(Web
AppFilterManager.java:238)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager.getFilterChain(WebAppFilterM
anager.java:296)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager
.java:721)
        at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager
.java:673)
        at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.jav
a:498)
        at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.j
ava:464)
        at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3168)
        at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:254)
        at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:811)
        at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1433)
        at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:96)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpI
nboundLink.java:465)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpI
nboundLink.java:394)
        at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java
:274)
        at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminato
rs(NewConnectionInitialReadCallback.java:214)
        at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnec
tionInitialReadCallback.java:113)
        at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCo
mpletionListener.java:152)
        at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:21
3)
        at com.ibm.io.async.AbstractAsyncFuture.fireCompletionActions(AbstractAsyncFuture.
java:195)
        at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:136)
        at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:194)
        at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:741)
        at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:863)
        at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1469)
Caused by: java.lang.Throwable: java.lang.NullPointerException
        at urban.system.SystemParameters.getParamValue(SystemParameters.java:104)
        at urban.util.SetCharacterEncodingFilter.<clinit>(SetCharacterEncodingFilter.java:
100)
        at java.lang.J9VMInternals.initializeImpl(Native Method)
        at java.lang.J9VMInternals.initialize(J9VMInternals.java:177)
        ... 30 more

(END) --------------------编程问答-------------------- 我也碰到了，最后恢复备份了 --------------------编程问答-------------------- werewsdfsd --------------------编程问答-------------------- 这个错误是你部署应用过程中！上下文根访问不同造成的！
你可以这样访问http://localhost:9080/应用上下文根/application/login.jsp
或者 http://localhost:9080/应用上下文根/login.jsp

补充：企业软件 ,  WebSphere