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trying to learn struts need help getting started using struts 1.3.10

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Not open for further replies.

csphard

Programmer
Apr 5, 2002
194
US
New to Struts

I am getting the following error and I am stuck..

ERROR
message /index.jsp (line: 28, column: 4) Unable to find setter method for attribute: name

description The server encountered an internal error (/index.jsp (line: 28, column: 4) Unable to find setter method for attribute: name) that prevented it from fulfilling this request.



My understanding
Line 28 is <html:form action="Lookup" name="lookupForm" type="ch03.LookupForm" >


name on the index page represents the javabean data
type = the qualified path and name of the javabean

index.jsp

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<html>
<head>
<title>Wrox Struts Application</title>
</head>

<body>
<table width="500" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td height="68" width="48%">
<div align="left">
<img src="images/wxmainlogowhitespace.gif">
</div>
</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
</table>

<html:errors />

<html:form action="Lookup"
name="lookupForm"
type="ch03.LookupForm" >
<table width="45%" border="0">
<tr>
<td>symbol :</td>
<td><html:text property="symbol" /></td>
</tr>
<tr>
<td colspan="2" align="center"><html:submit /></td>
</tr>
</table>
</html:form>

</body>
</html>


JavaBean
package ch03;

import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;

public class LookupForm extends ActionForm {

private String symbol = null;

public String getSymbol() {

return (symbol);
}

public void setSymbol(String symbol) {

this.symbol = symbol;
}

public void reset(ActionMapping mapping,
HttpServletRequest request) {

this.symbol = null;
}
}


Controller

package ch03;

import java.io.IOException;
import javax.servlet.ServletException;
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 LookupAction extends Action {

protected Double getQuote(String symbol) {

if ( symbol.equalsIgnoreCase("SUNW") ) {

return new Double(25.00);
}
return null;
}

public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {

Double price = null;

// Default target to success
String target = new String("success");

if ( form != null ) {

LookupForm lookupForm = (LookupForm)form;

String symbol = lookupForm.getSymbol();

price = getQuote(symbol);
}

// if price is null, set the target to failure
if ( price == null ) {

target = new String("failure");
}
else {

request.setAttribute("PRICE", price);
}
// Forward to the appropriate View
return (mapping.findForward(target));
}
}


struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1" ?>

<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.1//EN"
"
<struts-config>


<form-beans>

<form-bean name="lookupForm"
type="ch03.LookupForm"/>

</form-beans>


<action-mappings>

<action path="/Lookup"
type="ch03.LookupAction"
name="lookupForm" >
<forward name="success" path="/quote.jsp"/>
<forward name="failure" path="/index.jsp"/>
</action>

</action-mappings>

</struts-config>


web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"
<web-app>

<!-- Standard ActionServlet Configuration -->
<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>application</param-name>
<param-value>ApplicationResources</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>


<!-- Standard ActionServlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>


<!-- Standard Welcome File List -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<!-- Struts Tag Library Descriptors -->
<taglib>
<taglib-uri>/WEB-INF/struts-html.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-html.tld</taglib-location>
</taglib>

<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>

</web-app>

quote.jsp

<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<html>
<head>
<title>Wrox Struts Application</title>
</head>
<body>

<table width="500" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td height="68" width="48%">
<div align="left">
<img src="images/wxmainlogowhitespace.gif">
</div>
</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td>
<bean:message key="app.price" />: <%= request.getAttribute("PRICE") %>
</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
</table>
</body>
</html>
 
We were able to fix it. I delete the strike lines and it worked.

<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>

<html>
<head>
<title>Wrox Struts Application</title>
</head>

<body>
<table width="500" border="0" cellspacing="0" cellpadding="0">
<tr>
<td>&nbsp;</td>
</tr>
<tr>
<td height="68" width="48%">
<div align="left">
<img src="images/wxmainlogowhitespace.gif">
</div>
</td>
</tr>
<tr>
<td>&nbsp;</td>
</tr>
</table>

<html:errors />

<html:form action="Lookup"
name="lookupForm"
type="ch03.LookupForm"
>
<table width="45%" border="0">
<tr>
<td>symbol :</td>
<td><html:text property="symbol" /></td>
</tr>
<tr>
<td colspan="2" align="center"><html:submit /></td>
</tr>
</table>
</html:form>
 
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