2

サーバーをWAS7からWAS8に移行し、WAS 7では発生しない問題に直面しています。無効なURLが要求された場合、WAS 7は設定したカスタムエラーページで応答しますweb.xml。これはJSPであり、Strutsを使用します。タグ。ただし、WAS 8ではそうではなく、以下のエラーページ/スタックトレースが表示されます。無効なURLにデフォルトのstruts拡張子がない場合にのみ発生するため、問題はweb.xml構成にあると考えられます。構成のスニペットはエラーページの後に表示されます。



エラーページ/スタックトレース

Error Page Exception
SRVE0260E: The server cannot use the error page specified for your application to handle the Original Exception printed below.

Original Exception:
Error Message: javax.servlet.ServletException: java.io.FileNotFoundException: SRVE0190E: File not found: /whatever
Error Code: 404
Target Servlet: com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor
Error Stack:
java.io.FileNotFoundException: SRVE0190E: File not found: /whatever
     at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor._processEDR(DefaultExtensionProcessor.java:874)
     at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.processEDR(DefaultExtensionProcessor.java:855)
     at com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleRequest(DefaultExtensionProcessor.java:433)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:125)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:92)
     at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:389)
     at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:192)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:89)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:919)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1016)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3703)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:953)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1655)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:276)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1650)



Error Page Exception:
Error Message: The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
Error Code: 0
Target Servlet:
Error Stack:
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
     at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
     at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:44)
     at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:48)
     at com.ibm._jsp._error404._jspx_meth_s_i18n_0(_error404.java:374)
     at com.ibm._jsp._error404._jspService(_error404.java:108)
     at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:99)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1152)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:722)
     at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:449)
     at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.handleRequest(ServletWrapperImpl.java:178)
     at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:122)
     at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:205)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.invokeTarget(WebAppFilterChain.java:125)
     at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:77)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:919)
     at com.ibm.ws.webcontainer.filter.WebAppFilterManager.invokeFilters(WebAppFilterManager.java:1016)
     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:1384)
     at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:193)
     at com.ibm.ws.webcontainer.webapp.WebApp.sendError(WebApp.java:3206)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleException(WebApp.java:3733)
     at com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:3714)
     at com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:304)
     at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:953)
     at com.ibm.ws.webcontainer.WSWebContainer.handleRequest(WSWebContainer.java:1655)
     at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:195)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:452)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:511)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:305)
     at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:276)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminators(NewConnectionInitialReadCallback.java:214)
     at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:113)
     at com.ibm.ws.tcp.channel.impl.AioReadCompletionListener.futureCompleted(AioReadCompletionListener.java:165)
     at com.ibm.io.async.AbstractAsyncFuture.invokeCallback(AbstractAsyncFuture.java:217)
     at com.ibm.io.async.AsyncChannelFuture.fireCompletionActions(AsyncChannelFuture.java:161)
     at com.ibm.io.async.AsyncFuture.completed(AsyncFuture.java:138)
     at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:204)
     at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:775)
     at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:905)
     at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1650)

WEB.XMLスニペット

<filter>
    <filter-name>struts-cleanup</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class>
</filter>

<filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>

<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<error-page>
    <error-code>404</error-code>
    <location>/error/error404.jsp</location>
</error-page>
<error-page>
    <error-code>500</error-code>
    <location>/error/error500.jsp</location>
</error-page>

WAS 7で正常に動作するので、何が欠けているのでしょうか。ストラットがWAS8でカスタムエラーページを処理するために必要な構成変更はありますか？このスニペットが示すように、引き続きまったく同じ構成ファイルを使用し、2.4サーブレットを指していることに注意してください。

<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" 
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
         http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
4

2 に答える 2

2

After contacting product support the solution was to add an additional mapping to web.xml to have the ERROR dispatcher also mapped to Struts filter, as:

<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/error/*</url-pattern>
    <dispatcher>ERROR</dispatcher>
</filter-mapping>

It seems that, in absence of a mapping for specific dispatchers, WAS 7 uses the default, while WAS 8 does not pass the request to any filter (as there's no mapping).

于 2012-09-17T13:58:03.553 に答える
1

WAS6.1からWAS8.5への移行中に、Struts2タグを含むカスタムエラーページで同じ問題が発生しました。

Struts2タグを使用するため、struts.xmlでJSPを定義する必要があります。以下の例を参照してください。

web.xml：

<error-page>
    <error-code>403/error-code>
    <location>/error403.html</location>  
</error-page>

struts.xml：

<constant name="struts.action.extension" value="html, jsp" />
...
<package name="globals" extends="struts-default" namespace="/">
    ...
    <action name="error403">
        <result>/WEB-INF/pages/error/403.jsp</result>
    </action>
    ...
</package>

com.ibm.ws.webcontainer.invokeFiltersCompatibilityをtrueに設定しようとしましたか？

于 2012-08-30T07:20:27.023 に答える