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Struts
org.apache.jasper.JasperException: Module 'null' not found.
Varun Nayudu
Ranch Hand
Posts: 160
posted 16 years ago
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Hi,
I am building a simple
struts
application . But it is giving me an error .The application is as follows.
Web.xml
<web-app> <display-name>Struts Login Application</display-name> <servlet> <servlet-name>action</servlet-name> <servlet-class>org.apache.struts.action.Action</servlet-class> <init-param> <param-name>config</param-name> <param-value>/WEB-INF/struts-config.xml</param-value> </init-param> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>action</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> <taglib> <taglib-uri>/WEB-INF/struts-html-el.tld</taglib-uri> <taglib-location>/WEB-INF/struts-html-el.tld</taglib-location> </taglib> </web-app>
struts-config.xml
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"> <struts-config> <form-beans> <form-bean name="loginForm" type="com.formBeans.LoginForm"/> </form-beans> <action-mappings> <action path="/login" type="com.actions.LoginAction" name="loginForm" scope="request" input="/login.jsp" validate="true"> <forward name="success" path="/loggedIn.jsp"/> </action> </action-mappings> </struts-config>
login.jsp
<%@ taglib prefix="html" uri="/WEB-INF/struts-html-el.tld"%> <html> <head> <title>Login.jsp</title> </head> <body> <h1>Login.jsp!!!</h1> <html:form action="login.do" focus="userName"> <table> <tr> <td>username : <html:text property="userName"/></td> <td>password : <html:password property="password"/></td> </tr> </table> </html:form> </body> </html>
loginForm
package com.formBeans; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; public class LoginForm extends ActionForm{ private String userName; private String password; public void setUserName(String userName){ this.userName=userName; } public String getUserName(){ return this.userName; } public void setPassword(String password){ this.password=password; } public String getPassword(){ return this.password; } }
action class
package com.actions; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; public class LoginAction extends Action{ public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response)throws Exception{ return (mapping.findForward("success")); } }
Error
HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: Module 'null' not found. org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:346) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) root cause java.lang.NullPointerException: Module 'null' not found. org.apache.struts.taglib.TagUtils.getModuleConfig(TagUtils.java:755) org.apache.struts.taglib.TagUtils.getModuleConfig(TagUtils.java:735) org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:818) org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:488) org.apache.strutsel.taglib.html.ELFormTag.doStartTag(ELFormTag.java:445) org.apache.jsp.login_jsp._jspx_meth_html_form_0(login_jsp.java:101) org.apache.jsp.login_jsp._jspService(login_jsp.java:74) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:298) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236) javax.servlet.http.HttpServlet.service(HttpServlet.java:810) note The full stack trace of the root cause is available in the Apache Tomcat/5.0.25 logs. Apache Tomcat/5.0.25
Please tell me what changes should i do to resolve this conflict.
regards
VN
SCJP 1.5, SCWCD 1.5
Varun Nayudu
Ranch Hand
Posts: 160
posted 16 years ago
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Guys
I have resolved the conflict it was an spelling mistake from me,Instead of ActionServlet i had written Action .
Now it is working fine/
SCJP 1.5, SCWCD 1.5
Suresh Ramanan
Greenhorn
Posts: 27
posted 15 years ago
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@ Varun
where had you specified Action instead of ActionServlet?
I have run into a very similar error and i'm going nuts...
Can you please help?
Thanks,
Suresh
SCJP 5.0 SCWCD 1.5
SCWCD Hall of Fame
Don't get me started about those stupid
light bulbs
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