Hello everybody,
I'm new to Java. I'm working on Struts now. I got this application from
one struts PDF. I've one jsp for customer details as follows:
CustomerDetails.jsp:
<%@ page contentType="text/html;charset=UTF-8" language="java"%>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<html:html>
<head>
<html:base/>
</head>
<body>
<html:form action="submitCustomerForm" onsubmit="return
validateCustomerForm(this);">
<bean:message key="custForm.firstName"/>
<html:text property="firstName" size="16" maxlength="16"/>
<br>
<bean:message key="custForm.lastName"/>
<html:text property="lastName" size="16" maxlength="16"/>
<br>
<html:submit value="Submit"/>
</html:form>
</body>
</html:html>
CustomerForm.java:
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.validator.ValidatorForm;
import javax.servlet.http.HttpServletRequest;
public class CustomerForm extends ValidatorForm
{
private String firstName;
private String lastName;
public CustomerForm(){
firstName="";
lastName="";
}
public String getFirstName(){
return firstName;
}
public void setFirstName(String fn){
this.firstName=fn;
}
public String getLastName(){
return lastName;
}
public void setLastName(String ln){
this.lastName=ln;
}
}
CustomerAction.java:
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 org.apache.struts.action.ActionError;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.action.ActionMessage;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class CustomerAction extends Action
{
public ActionForward execute(ActionMapping mapping,ActionForm
form,HttpServletRequest request,HttpServletResponse response) throws Exception{
if(isCancelled(request)){
System.out.println("Cancel Operation Performed");
return mapping.findForward("mainpage");
}
CustomerForm custForm=(CustomerForm) form;
String firstName=custForm.getFirstName();
String lastName=custForm.getLastName();
System.out.println("Customer First name is "+firstName);
System.out.println("Custoemr Last name is "+lastName);
ActionForward forward=mapping.findForward("success");
return forward;
}
}
web.xml
f
<?xml version='1.0' encoding='windows-1252'?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"; version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee";>
<description>Empty web.xml file for Web Application</description>
<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>application</param-name>
<param-value>/WEB-INF/classes/App1Messages.properties</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>3</param-value>
</init-param>
<init-param>
<param-name>validate</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>35</session-timeout>
</session-config>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<taglib>
<taglib-uri>/WEB-INF/struts-bean.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-bean.tld</taglib-location>
</taglib>
<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-logic.tld</taglib-uri>
<taglib-location>/WEB-INF/struts-logic.tld</taglib-location>
</taglib>
</web-app>
struts-config.xml
<?xml version="1.0" encoding="windows-1252" ?>
<!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="custForm" type="CustomerForm"/>
</form-beans>
<global-forwards>
<forward name="mainpage" path="index.jsp"/>
</global-forwards>
<action-mappings>
<action path="/submitCustomerForm" type="CustomerAction" name="custForm"
scope="request" validate="true" input="/CustomerDetails.jsp">
<forward name="success" path="/Success.jsp"/>
<forward name="failure" path="/Failure.jsp"/>
</action>
</action-mappings>
<controller processorClass="org.apache.struts.action.RequestProcessor"/>
<message-resources parameter="App1Messages"/>
<!-- Validator Configuration -->
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validator.xml"/>
</plug-in>
</struts-config>
Upto now it's working fine. But it's not displaying the error message that
I've mentioned in the properties file. This file is as follows and is in
WEB-INF/classes.
App1Messages.properties:
custForm.firstName=First Name
custForm.lastName=Last Name
errors.required=Required
validator-rules.xml
<!DOCTYPE form-validation PUBLIC
"-//Apache Software Foundation//DTD Commons Validator Rules
Configuration 1.1.3//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd";>
<form-validation>
<global>
<validator name="required"
classname="org.apache.struts.validator.FieldChecks"
method="validateRequired"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionMessages,
org.apache.commons.validator.Validator,
javax.servlet.http.HttpServletRequest"
msg="errors.required"/>
.
.
.
validator.xml
<!DOCTYPE form-validation PUBLIC
"-//Apache Software Foundation//DTD Commons Validator Rules
Configuration 1.1.3//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd";>
<form-validation>
<formset>
<form name="custForm">
<field property="firstName" depends="required"/>
<field property="lastName" depends="required"/>
</form>
</formset>
</form-validation>
I've my success.jsp and failure.jsp.
When I don't enter data into firstname and lastname, the form is displayed,
but the error message is not displying. validator.xml is working fine because
if I don't give any one or both of first name and last name it's displaying the
empty form and if I give both, success.jsp is displaying. In some struts pdfs
I've seen that if validation errors occur, the JSP u menthioned in input
attribute is displayed with the errors taken from properties file. Is is true
or not? If so, why did the author used the Failure.jsp again? Please clear me
why the message is not coming from properties file. Is the error in properties
file or validator-rules.xml or some other.
Thanks and regards,
Saritha
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