org.apache.jasper.JasperException: Advice/Help needed

[Alex Hartman]

Hey All,

I am running the example code in the Head First Servlet book, specifically the BeerSelect version 3. I checked and re-checked my directory structure and the code and it all seems correct. Nevertheless, when running the code, I get the following error message:

[color=red]org.apache.jasper.JasperException: org.apache.jasper.JasperException: XML parsing error on file /WEB-INF/web.xml: (line 5, col 16)[/color]
	org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:207)
	org.apache.jasper.compiler.JspConfig.init(JspConfig.java:220)
	org.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:273)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:112)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	com.example.web.BeerSelect.doPost(BeerSelect.java:27)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

[color=red]org.xml.sax.SAXParseException: The prefix "xlmns" for attribute "xlmns:xsi" associated with an element type "web-app" is not bound.[/color]
	com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:236)
	com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:215)
	com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:386)
	com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:316)
	com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:279)
	com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(XMLNSDocumentScannerImpl.java:779)
	com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1794)
	com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:368)
	com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:834)
	com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)
	com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
	com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:250)
	com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:292)
	org.apache.jasper.xmlparser.ParserUtils.parseXMLDocument(ParserUtils.java:96)
	org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:91)
	org.apache.jasper.compiler.JspConfig.init(JspConfig.java:220)
	org.apache.jasper.compiler.JspConfig.findJspProperty(JspConfig.java:273)
	org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:112)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:332)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)
	org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)
	org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
	org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
	org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
	com.example.web.BeerSelect.doPost(BeerSelect.java:27)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

Now, in the first line it says "org.apache.jasper.JasperException: org.apache.jasper.JasperException: XML parsing error on file /WEB-INF/web.xml: (line 5, col 16)
"
Below is my XML file

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

	<servlet>

		<servlet-name>Ch3-Beer</servlet-name>
		<servlet-class>com.example.web.BeerSelect</servlet-class>
	</servlet>

	<servlet-mapping>
		<servlet-name>Ch3-Beer</servlet-name>
		<url-pattern>/SelectBeer.do</url-pattern>
	</servlet-mapping>
</web-app>

Line 5 would be "version="2.4">" and I don't see any mistakes in that line.
Then "org.xml.sax.SAXParseException: The prefix "xlmns" for attribute "xlmns:xsi" associated with an element type "web-app" is not bound." I am really kind of lost here as I am new to servlets. If somebody could give me some advice on how to resolve this, I would really appreciate it.

Thanks,

alex

[samir singha]

if your application is running on Tomcat. open a web.xml file from tomcat/webappsservlet-example/WEB-INF directory. copy the the upper portion of the xml file upto <web-app> tag in your web.xml file. your web.xml file seems missing something like <?xml-version="1.0 encoding="IS0-8859-1">. restart tomcat and check again. Hope this will help.

[Alex Hartman]

Thank you Samir ;
that did the trick.