Zusammenfassung der Probleme beim Parsen von RSS

try{ 
   org.dom4j.io.SAXReader saxReader = new org.dom4j.io.SAXReader();
   org.dom4j.Document document = saxReader.read(rssUrl);
   org.dom4j.Element channel = (org.dom4j.Element) document.getRootElement().element("channel");
     int index =0;
           for (java.util.Iterator i = channel.elementIterator("item"); i.hasNext();){ 
            if(index+1>rssTable.Rows.length){
             break;
            } 
             org.dom4j.Element element = (org.dom4j.Element) i.next();
                String title = element.elementText("title");
                String link = element.elementText("link");
                String pubDate = element.elementText("pubDate");
                String source = element.elementText("source");  
                ci.adp.DataRow rssRow = rssTable.getDataRowByIndex(index);
              
                rssRow.setValue("TITLE", title);
                rssRow.setValue("LINK", link);
                rssRow.setValue("PUBDATE", pubDate);
                rssRow.setValue("SOURCE", source); 
                /*
                System.out.println("title标题: " + title);
                System.out.println("link链接: " + link);
                System.out.println("pubDate发布时间: " +pubDate); 
                System.out.println("source来源: " + source);
                */
                index++;  
           }
  }catch (Exception e) { 
   e.printStackTrace();
  }

[oracle@ablw010215 bin]$ Warning: Caught exception attempting to use SAX to load a SAX XMLReader
Warning: Exception was: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration
Warning: I will print the stack trace then carry on using the default SAX parser
java.lang.ClassCastException: com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration
        at org.xml.sax.helpers.XMLReaderFactory.loadClass(XMLReaderFactory.java:199)
        at org.xml.sax.helpers.XMLReaderFactory.createXMLReader(XMLReaderFactory.java:150)
        at org.dom4j.io.SAXHelper.createXMLReader(SAXHelper.java:83)
        at org.dom4j.io.SAXReader.createXMLReader(SAXReader.java:894)
        at org.dom4j.io.SAXReader.getXMLReader(SAXReader.java:715)
        at org.dom4j.io.SAXReader.read(SAXReader.java:435)
        at org.dom4j.io.SAXReader.read(SAXReader.java:321)
        at jsp_servlet._ajax._comm._bbs.__iframearticlecontent._jspService(__iframearticlecontent.java:100)
        at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at ci.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:107)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
org.dom4j.DocumentException: SAX2 driver class weblogic.xml.jaxp.RegistryXMLReader does not implement XMLReader Nested exception: SAX2 driver class weblogic.xml.jaxp.RegistryXMLReader does not implement XMLReader
        at org.dom4j.io.SAXReader.read(SAXReader.java:484)
        at org.dom4j.io.SAXReader.read(SAXReader.java:321)
        at jsp_servlet._ajax._comm._bbs.__iframearticlecontent._jspService(__iframearticlecontent.java:99)
        at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at ci.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:107)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Nested exception: 
java.lang.ClassCastException: com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration
        at org.dom4j.io.SAXHelper.createXMLReader(SAXHelper.java:98)
        at org.dom4j.io.SAXReader.createXMLReader(SAXReader.java:894)
        at org.dom4j.io.SAXReader.getXMLReader(SAXReader.java:715)
        at org.dom4j.io.SAXReader.read(SAXReader.java:435)
        at org.dom4j.io.SAXReader.read(SAXReader.java:321)
        at jsp_servlet._ajax._comm._bbs.__iframearticlecontent._jspService(__iframearticlecontent.java:100)
        at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at ci.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:107)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Nested exception: java.lang.ClassCastException: com.sun.org.apache.xerces.internal.parsers.XIncludeAwareParserConfiguration
        at org.dom4j.io.SAXHelper.createXMLReader(SAXHelper.java:98)
        at org.dom4j.io.SAXReader.createXMLReader(SAXReader.java:894)
        at org.dom4j.io.SAXReader.getXMLReader(SAXReader.java:715)
        at org.dom4j.io.SAXReader.read(SAXReader.java:435)
        at org.dom4j.io.SAXReader.read(SAXReader.java:321)
        at jsp_servlet._ajax._comm._bbs.__iframearticlecontent._jspService(__iframearticlecontent.java:100)
        at weblogic.servlet.jsp.JspBase.service(JspBase.java:35)
        at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
        at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
        at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:300)
        at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:27)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at ci.filter.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:107)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:57)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
        at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)