Struts 1.3.10 Digester.getParser（）UnsupportedOperationException

问题描述 投票：0回答：4

我正在尝试使用OC4J版本10.1.3.5启动Struts 1.X（版本1.3.10）应用程序。应用程序设法初始化所有Spring bean，包括action-servlet.xml中定义的Struts Actions。但是，一旦所有bean都被初始化，我在日志中会得到一个相当丑陋的异常。

我怀疑在xalan（2.7.1），xercesImpl（2.9.1）或xml-apis（1.3.04）中存在问题，但所有这些都使用最新版本。例外情况说可能缺少依赖关系，但我无法确定它可能是什么。

任何帮助表示赞赏。 （注意：我目前无法更新到Struts 2.X。该应用程序是一个可能被替换的遗留应用程序）。

 Digester.getParser:                                                                             08:18:10,794 ERROR Digester(789)
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
    at javax.xml.parsers.SAXParserFactory.setXIncludeAware(SAXParserFactory.java:390)
    at org.apache.commons.digester.Digester.getFactory(Digester.java:534)
    at org.apache.commons.digester.Digester.getParser(Digester.java:786)
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.initPreloadServlets(HttpApplication.java:5118)
    at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1283)
    at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
    at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
    at com.evermind.server.Application.getHttpApplication(Application.java:592)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
    at com.evermind.server.http.HttpSite.initApplications(HttpSite.java:701)
    at com.evermind.server.http.HttpSite.setConfig(HttpSite.java:308)
    at com.evermind.server.http.HttpServer.setSites(HttpServer.java:280)
    at com.evermind.server.http.HttpServer.setConfig(HttpServer.java:180)
    at com.evermind.server.ApplicationServer.initializeHttp(ApplicationServer.java:2541)
    at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:1058)
    at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
    at java.lang.Thread.run(Thread.java:595)
Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable.  Most likely, this is due to an incorrect or missing library dependency. 08:18:10,802 ERROR ActionServlet(398)
java.lang.NullPointerException
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.initPreloadServlets(HttpApplication.java:5118)
    at com.evermind.server.http.HttpApplication.initDynamic(HttpApplication.java:1283)
    at com.evermind.server.http.HttpApplication.<init>(HttpApplication.java:848)
    at com.evermind.server.ApplicationStateRunning.getHttpApplication(ApplicationStateRunning.java:435)
    at com.evermind.server.Application.getHttpApplication(Application.java:592)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.createHttpApplicationFromReference(HttpSite.java:2280)
    at com.evermind.server.http.HttpSite$HttpApplicationRunTimeReference.<init>(HttpSite.java:2199)
    at com.evermind.server.http.HttpSite.initApplications(HttpSite.java:701)
    at com.evermind.server.http.HttpSite.setConfig(HttpSite.java:308)
    at com.evermind.server.http.HttpServer.setSites(HttpServer.java:280)
    at com.evermind.server.http.HttpServer.setConfig(HttpServer.java:180)
    at com.evermind.server.ApplicationServer.initializeHttp(ApplicationServer.java:2541)
    at com.evermind.server.ApplicationServer.setConfig(ApplicationServer.java:1058)
    at com.evermind.server.ApplicationServerLauncher.run(ApplicationServerLauncher.java:131)
    at java.lang.Thread.run(Thread.java:595)
Digester.getParser:                                                                             08:18:20,228 ERROR Digester(789)
java.lang.UnsupportedOperationException: This parser does not support specification "null" version "null"
    at javax.xml.parsers.SAXParserFactory.setXIncludeAware(SAXParserFactory.java:390)
    at org.apache.commons.digester.Digester.getFactory(Digester.java:534)
    at org.apache.commons.digester.Digester.getParser(Digester.java:786)
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:3139)
    at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:775)
    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458)
    at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:226)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:127)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:116)
    at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
    at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
    at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
    at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
    at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    at java.lang.Thread.run(Thread.java:595)
Unable to initialize Struts ActionServlet due to an unexpected exception or error thrown, so marking the servlet as unavailable.  Most likely, this is due to an incorrect or missing library dependency. 08:18:20,231 ERROR ActionServlet(398)
java.lang.NullPointerException
    at org.apache.commons.digester.Digester.getXMLReader(Digester.java:1058)
    at org.apache.commons.digester.Digester.parse(Digester.java:1887)
    at org.apache.struts.action.ActionServlet.initServlet(ActionServlet.java:1785)
    at org.apache.struts.action.ActionServlet.init(ActionServlet.java:349)
    at javax.servlet.GenericServlet.init(GenericServlet.java:256)
    at com.evermind.server.http.HttpApplication.loadServlet(HttpApplication.java:2528)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:5006)
    at com.evermind.server.http.HttpApplication.findServlet(HttpApplication.java:4930)
    at com.evermind.server.http.HttpApplication.getRequestDispatcher(HttpApplication.java:3139)
    at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:775)
    at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:458)
    at com.evermind.server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:226)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:127)
    at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:116)
    at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
    at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:234)
    at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:29)
    at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:879)
    at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
    at java.lang.Thread.run(Thread.java:595)
java struts
4个回答
4
投票

当我尝试使用xml架构验证xml文件时，我遇到了这个问题。我用Google搜索并找出了这个问题的根本原因。

像xerces-2.6.2.jar，crimson.jar，xalan.jar和jaxp.jar这样的Jar文件具有较旧版本的SAXParserFactory。因此，所有上述jar文件都应该从parh类中删除。

使用正确的版本删除或更新jar的jar。

4
投票

如果它可以帮助任何人：我有类似的问题，并提供SaxParserFactory作为JVM选项工作

-Djavax.xml.parsers.SAXParserFactory=com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl
0
投票

没关系，我没有配置OC4J的global-web-application.xml来首先搜索本地类，或者创建了一个自定义的orion-web.xml文件来做同样的事情。

如果遇到这个问题，最简单的（大锤子）方法是将此行添加到（oc4j dir）\ j2ee \ home \ config \ global-web-application.xml：

<web-app-class-loader search-local-classes-first="true"/>

问题是，如果你尝试使用Xerces或其他一些有点最新的SAX解析器，你将遇到一个类路径问题，甲骨文试图强迫你的喉咙（与他们的任何产品相同）。

0
投票

使用Commons Digester 1.7，而不是JDeveloper附带的Commons Digester。 http://jakarta.apache.org/commons/digester/

最新问题
© www.soinside.com 2019 - 2024. All rights reserved.