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Struts

error comes while running the struts application please see the source code for detail

Greenhorn

Posts: 23

posted 14 years ago

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Name ActionForm.java

when i run my web application using the eclipse following error comes
here iam doing nothin just compile the jsp page 
package de.laliluna.tutorial.actionform.action;

import javax.servlet.http.HttpServletRequest;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionMapping;

public class ExampleForm extends ActionForm 
{
	
 	public String name;
	
	public int age;
	
	
	
	public int getAge()
	{
		return age;
	}
	
	
	public void setAge(int age)
	
	{
		this.age = age;
	}
	
	public String getName() 
	{
		return name;
	}
	
	public void setName(String name)
	{
		this.name = name;
	}

public void reset(ActionMapping mapping, HttpServletRequest request)
	{
		
 		name = "Adam Weisshaupt";
		age = 23;
	}

}

ExampleAction.java
package de.laliluna.tutorial.actionform.form;

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;

import de.laliluna.tutorial.actionform.action.ExampleForm;

public class ExampleAction extends Action {

public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response) 
	{
		
 		ExampleForm exampleForm = (ExampleForm) form;
		
	 
		System.out.println(exampleForm.getName());
		
		System.out.println(exampleForm.getAge());
		
		return mapping.findForward("showExample");
	}

}

example.jsp

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

<html> 
	
	<head>
		
		<title>JSP for exampleForm</title>
	
	</head>
	
	<body>
		
		<html:form action="/example">
			
			<html:errors /> <br>
			
			Name: <html:text property="name" /> <br>
			
			Age: <html:text property="age" /> <br>			
			
			<html:submit value="Send"/>
		
		</html:form>
	
	</body>

</html>

struts-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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>
   
   <data-sources/>
  
   <form-beans>
      
      <form-bean name="exampleForm" type="de.laliluna.tutorial.actionform.action.ExampleForm" />
   
   </form-beans>

<global-exceptions/>
   
   <global-forwards/>
  
   <action-mappings>
   
    <action attribute="/exampleForm" input="/example.jsp" name="exampleAction" path="/example" scope="request" type="de.laliluna.tutorial.actionform.form.ExampleAction">
    
    <forward name="showExample" path="/example.jsp"/>
    
    </action>

</action-mappings>

</struts-config>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee   http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  
   <servlet>
     
      <servlet-name>action</servlet-name>
     
      <servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
      
      <init-param>
       
         <param-name>config</param-name>
      
         <param-value>/WEB-INF/struts-config.xml</param-value>
    
      </init-param>
    
      <init-param>
       
         <param-name>debug</param-name>
       
         <param-value>3</param-value>
     
      </init-param>
      
      <init-param>
        
         <param-name>detail</param-name>
        
         <param-value>3</param-value>
     
      </init-param>
    
      <load-on-startup>0</load-on-startup>
  
   </servlet>
   
   <servlet-mapping>
      
      <servlet-name>action</servlet-name>
     
      <url-pattern>*.do</url-pattern>
   
   </servlet-mapping>

<welcome-file-list>
  
    <welcome-file>example.jsp</welcome-file>
  </welcome-file-list>

</web-app>

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: An exception occurred processing JSP page /example.jsp at line 15

12: 	
13: 	<body>
14: 		
15: 		<html:form action="/example">
16: 			
17: 			<html:errors /> <br>
18:

Stacktrace:
	org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:515)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:408)
	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: javax.servlet.jsp.JspException: Cannot retrieve definition for form bean: "exampleAction" on action: "/example"
	org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:855)
	org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:784)
	org.apache.jsp.example_jsp._jspService(example_jsp.java:93)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
	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.jsp.JspException: Cannot retrieve definition for form bean: "exampleAction" on action: "/example"
	org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:881)
	org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:488)
	org.apache.jsp.example_jsp._jspx_meth_html_005fform_005f0(example_jsp.java:110)
	org.apache.jsp.example_jsp._jspService(example_jsp.java:81)
	org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:384)
	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)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.10 logs.

--------------------------------------------------------------------------------

Apache Tomcat/6.0.10

Rajkumar balakrishnan

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Posts: 445

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