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Problem with Struts html Tags

 
jo sim
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Posts: 37
posted 17 years ago
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I am new to struts and experiencing with struts html tags. I used eclipse to add struts capabilities and have the correct tags in the folder with all the necessary libraries. not sure why its still not working. Here is the the actual jsp page.


<%@ page language="java" pageEncoding="ISO-8859-1"%>

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://struts.apache.org/tags-tiles" prefix="tiles" %>


<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html:html lang="true">
<head>
<html:base />

<title>inxex.jsp</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

</head>

<body>
This a struts page. <br>
<html:form action="userRegistration">
<tr>

<tr>
<td>
<html:submit />
</td>
<td>
<html:cancel />
</td>
</tr>
</html:form>
</body>
</html:html>


HERE IS THE ERROR I GET (I know this form is not doing anything but i wanted to test to see if the tags are working or not? in ECLIPSE the design part shows the exact output but when putting it in either jboss or tomcat I get this error.



exception

org.apache.jasper.JasperException
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:395)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)


root cause

java.lang.NullPointerException
org.apache.struts.config.impl.ModuleConfigImpl.findActionConfig(ModuleConfigImpl.java:323)
org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:751)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:443)
org.apache.jsp.inxex_jsp._jspx_meth_html_form_0(inxex_jsp.java:175)
org.apache.jsp.inxex_jsp._jspx_meth_html_html_0(inxex_jsp.java:132)
org.apache.jsp.inxex_jsp._jspService(inxex_jsp.java:81)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 
Merrill Higginson
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Posts: 4864
posted 17 years ago
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This error is most likely caused by the action attribute in your <html:form> not matching an action path definined in your struts-config.xml file. You must define the action before this JSP will work.

One other suggestion: always begin an action with a "/". That way it will work no matter what your current context is. So, in this case, change your JSP code to and make sure you have an entry in your struts-config.xml file that looks something like this:

Merrill
Consultant, Sima Solutions

 
jo sim
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posted 17 years ago
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I tried that now I am getting this error.

org.apache.jasper.JasperException: An exception occurred processing JSP page /WebRoot/index.jsp at line 10
7:
8:
9: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
10: <html:html lang="true">
11: <head>
12: <html:base />
13:

org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:555)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:414)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
 
Pradeep
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Posts: 49
posted 17 years ago
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Per this getting started documentation:
http://jakarta.apache.org/taglibs/doc/standard-doc/standard/GettingStarted.html

JSTL 1.1 has a dependency on Xalan , you will need xalan.jar and serializer.jar in your WEB-INF/lib/ folder , that should take care of the new error you are getting.
 
Merrill Higginson
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posted 17 years ago
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Have you added all the jar files that came with the download in the /lib folder to your WEB-INF/lib folder?

Merrill
Consultant, Sima Solutions

 
jo sim
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posted 17 years ago
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I added xalan.jar and serialize.jar files. I am getting this error now.

org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:565)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:414)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)


root cause

javax.servlet.ServletException: java.lang.NoClassDefFoundError
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:855)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:784)
org.apache.jsp.WebRoot.index_jsp._jspService(index_jsp.java:87)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:390)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
[ February 22, 2007: Message edited by: jo sim ]
 
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