Hi All,
I am facing a problem in Struts.I am doing the very first program for
Struts.
The web.xml file is as follows:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns: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>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>
</servlet>
<load-on-startup>1</load-on-startup>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>
</web-app>
and the Struts-config.xml is as follows:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
"http://struts.apache.org/dtds/struts-config_1_1.dtd">
<struts-config>
<form-beans>
<form-bean name="lookupForm" type="LookupForm"/>
</form-beans>
<action-mappings>
<action path="/Lookup" type="LookupAction" name="lookupForm">
<forward name="success" path="/quote.jsp">
<forward name="failure" path="/index.jsp">
</action-mappings>
</struts-config>
I have created two
JSP Files .
First is index.jsp
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<html>
<head>
<title>
My First Struts Application
</title>
</head>
<body bgcolor="cyan">
<img src="images/exclam.gif">
<html:form action="Lookup" name="lookupForm" type="LookupForm">
Symbol:<html:text property="symbol"/><br>
<html:submit/>
</html:form>
</body>
</html>
and second id quote.jsp
<html>
<head><title><head>Quote.jsp</title></head>
<body bgcolor="green">
Cuurent Price:<%=request.getAttribute("PRICE")%>
</body>
</html>
The ActionForm class is as follows:
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
import javax.servlet.http.*;
public class LookupForm extends ActionForm
{
private
String symbol;
public String getSymbol()
{
return symbol;
}
public void setSymbol(String symbol)
{
this.symbol=symbol;
}
public void reset(ActionMapping mapping,HttpServletRequest request)
{
this.symbol=null;
}
}
and Action class is as follows:
import javax.servlet.*;
import javax.servlet.http.*;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForward;
import java.io.*;
public class LookupAction extends Action
{
public ActionForward execute(ActionMapping mapping,ActionForm form,HttpServletRequest request,HttpServletResponse response)throws IOException ,ServletException
{
Double price=null;
String target=new String("success");
if(form!=null)
{
LookupForm lookupForm=(LookupForm)form;
String symbol=lookupForm.getSymbol();
price=getQuote(symbol);
}
if(price==null)
{
target=new String("failure");
}
else{
request.setAttribute("Price",price);
}
return (mapping.findForward(target));
}
public Double getQuote(String symbol)
{
if(symbol.equalsIgnoreCase("SUNW"))
{
return new Double(25.00);
}
return null;
}
}
I have kept 3 jar file struts.jar,commons-beanutils.jar ,and commomn-digester.jar in WEB-INF->lib folder
and struts-html.tld in WEB-INF folder.
classfile are under WEB-INF->classes and jsp's are under Context root.
I am very new to Struts,unable to troubleshoot.
When i am running my application exception comes on browser.Exception are
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Exception in JSP: /index.jsp:10
7: </head>
8: <body bgcolor="cyan">
9: <img src="images/exclam.gif">
10: <html:form action="Lookup" name="lookupForm" type="LookupForm">
11: Symbol:<html:text property="symbol"/><br>
12: <html:submit/>
13: </html:form>
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:506)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
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:802)
root cause
javax.servlet.ServletException: Cannot find ActionMappings or ActionFormBeans collection
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:843)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:776)
org.apache.jsp.index_jsp._jspService(index_jsp.java:82)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
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:802)
root cause
javax.servlet.jsp.JspException: Cannot find ActionMappings or ActionFormBeans collection
org.apache.struts.taglib.html.FormTag.lookup(FormTag.java:798)
org.apache.struts.taglib.html.FormTag.doStartTag(FormTag.java:506)
org.apache.jsp.index_jsp._jspx_meth_html_form_0(index_jsp.java:100)
org.apache.jsp.index_jsp._jspService(index_jsp.java:72)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
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:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.20 logs.
.
I think it unable to find struts-config.xml.
One more problem regarding this iswhen i simple double click to view my struts-config.xml on my browser,it does not open but error comes which is
:
The system cannot locate the resource specified. Error processing resource 'http://struts.apache.org/dtds/struts-config_1_1...
Do i need to put struts-config_1_1.dtd somewhere.it is already inside the WEB-INF->lib.
Kindly help me out,i m in deep trouble.
Thanks in advance.
