ExternalContext的Request对象上的getQueryString在WebSphere上返回null

时间：2012-08-07 07:14:49

标签： java jsf websphere query-string

我在WebSphere上使用JSF 1.1（MyFaces 1.1.8）时遇到了问题。在Tomcat 5.5上部署我的应用程序时，此行为不适用，一切正常。

当我尝试从Ogone（支付网关）发回的URL中读取参数，再次加入我的JSF会话（会话仍然存在）时，QueryString无法通过

获得 
final HttpServletRequest request = (HttpServletRequest)FacesContext
.getCurrentInstance().getExternalContext().getRequest();

String qs = request.getQueryString(); // null on WebSphere, filled on Tomcat

为了更完整，查询字符串看起来像这样：

http://100.100.100.100:9080/my_app_context/pages/screen7.jsf?orderID=4208013442596271&currency=EUR&amount=60&PM=iDEAL&ACCEPTANCE=0000000000&STATUS=9&CARDNO=11-XXXX-11&ED=&CN=K%C3%A9m+Birdy&TRXDATE=08%2F06%2F12&PAYID=15879916&NCERROR=0&BRAND=iDEAL&COMPLUS=personID%3D01%26subscriptionID%3D02&IP=100.100.100.100&SHASIGN=9642468EE016BD49787B62EA7231124B3C24F9BBFC5B3B3B4D9E97D678979E57E5EED9B47D611441A6FCA2EB1D2DB87348C8111ACFF366A4E244106CCCFAFDA5

我正在考虑一些可能阻止容器正确处理外部请求的WebSphere webcontainer设置。或许这里有一些类加载问题，但我无法跟踪它。

WebSphere上的堆栈跟踪是这样的：

12-08-07 08:02:26 ERROR - 
java.lang.NullPointerException
at ... own code trying to getQueryString()...
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:459)
at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:85)
at org.apache.myfaces.custom.security.SecurityContextPropertyResolver.getValue(SecurityContextPropertyResolver.java:101)
at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:539)
at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:386)
at javax.faces.component.UIOutput.getValue(UIOutput.java:118)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getValue(RendererUtils.java:267)
at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getStringValue(RendererUtils.java:226)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.renderOutput(HtmlTextRendererBase.java:69)
at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:57)
at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:799)
at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:678)
at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:546)
at com.ibm._jsp._aanmeldScherm7._jspx_meth_h_outputText_1(_aanmeldScherm7.java:204)
at com.ibm._jsp._aanmeldScherm7._jspx_meth_f_subview_0(_aanmeldScherm7.java:1870)
at com.ibm._jsp._aanmeldScherm7._jspService(_aanmeldScherm7.java:85)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:88)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1213)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1154)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:118)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:848)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:691)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:654)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:526)
at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:122)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:248)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.include(WebAppRequestDispatcher.java:648)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1042)
at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:484)
at org.apache.struts.tiles.TilesUtilImpl.doInclude(TilesUtilImpl.java:99)
at org.apache.struts.tiles.TilesUtil.doInclude(TilesUtil.java:135)
at org.apache.struts.taglib.tiles.InsertTag.doInclude(InsertTag.java:760)
at org.apache.struts.taglib.tiles.InsertTag$InsertHandler.doEndTag(InsertTag.java:892)
at org.apache.struts.taglib.tiles.InsertTag.doEndTag(InsertTag.java:462)
at com.ibm._jsp._defaultLayout2._jspx_meth_tiles_insert_2(_defaultLayout2.java:392)
at com.ibm._jsp._defaultLayout2._jspx_meth_h_form_0(_defaultLayout2.java:597)
at com.ibm._jsp._defaultLayout2._jspx_meth_f_view_0(_defaultLayout2.java:715)
at com.ibm._jsp._defaultLayout2._jspService(_defaultLayout2.java:92)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:88)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1213)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1154)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:118)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:848)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:691)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:654)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:526)
at com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(GenericServletWrapper.java:122)
at com.ibm.ws.jsp.webcontainerext.AbstractJSPExtensionServletWrapper.handleRequest(AbstractJSPExtensionServletWrapper.java:248)
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:325)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:426)
at org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.dispatch(JspTilesViewHandlerImpl.java:236)
at org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl.renderView(JspTilesViewHandlerImpl.java:222)
at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:101)
at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:221)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:41)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:146)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:147)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1213)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1154)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:145)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75)
at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:301)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.FilterInstanceWrapper.doFilter(FilterInstanceWrapper.java:190)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain.doFilter(WebAppFilterChain.java:130)
at com.ibm.ws.webcontainer.filter.WebAppFilterChain._doFilter(WebAppFilterChain.java:87)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:848)
at com.ibm.ws.webcontainer.filter.WebAppFilterManager.doFilter(WebAppFilterManager.java:691)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:654)
at com.ibm.ws.wswebcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:526)
at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:90)
at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:764)
at com.ibm.ws.wswebcontainer.WebContainer.handleRequest(WebContainer.java:1478)
at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:133)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:457)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewRequest(HttpInboundLink.java:515)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.processRequest(HttpInboundLink.java:300)
at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:271)
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:136)
at com.ibm.io.async.ResultHandler.complete(ResultHandler.java:196)
at com.ibm.io.async.ResultHandler.runEventProcessingLoop(ResultHandler.java:751)
at com.ibm.io.async.ResultHandler$2.run(ResultHandler.java:881)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1560)

如果有人能指出我正确的方向，请。

WebSphere版本是6.1.0.43。

1 个答案:

答案 0 :(得分：4)

好的，这对其他人来说可能会派上用场。

深入了解WebSphere Application Server的自定义Web容器属性，我遇到了这个问题：

  

使查询字符串可用于欢迎文件[Fix Pack 25或更高版本]

     

通常，当请求最初发送到的上下文根时   应用程序，请求被转发到欢迎文件。如果是查询   string包含在初始请求中，它不可用   如果您在request.getQueryString（）属性中包含了欢迎文件   欢迎文件。但是，查询字符串可用于   如果包含javax.servlet.forward.query_string，则为welcome文件   欢迎文件中的属性。

     

如果需要使用request.getQueryString（）属性，而不是   javax.servlet.forward.query_string属性，用于进行查询   字符串可用于欢迎文件，添加   com.ibm.ws.webcontainer.provideQStringToWelcomeFile自定义属性   您的Web容器配置并将该属性设置为true。该   此属性的默认值为false。名称值   com.ibm.ws.webcontainer.provideQStringToWelcomeFile true

对于WebSphere 6.1，可以在此处找到这些自定义属性：http://pic.dhe.ibm.com/infocenter/wasinfo/v6r1/index.jsp?topic=%2Fcom.ibm.websphere.base.doc%2Finfo%2Faes%2Fae%2Frweb_custom_props.html

线索是，一旦转发请求，查询字符串本身就会从Request对象中剥离，为“内部”查询字符串留出空间。使用

仍可使用初始查询字符串

request.getAttribute（ “javax.servlet.forward.query_string”）;

有点棘手，但我们的代码现在很强大，能够在WebSphere和其他servlet容器中运行，以及管理Ogone发送的UTF-8和ISO-8859-1编码查询字符串参数。

感谢收听。

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