hi all,
I want to do Dynamic field check using validator framework.
I have done the following steps:
1.Add validator plugin in struts-config.xml
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
</plug-in>
2.I have used index.jsp as my LOGIN page.
With the following code:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html"%>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean"%>
<html:html>
<HEAD>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
type="text/css">
<TITLE></TITLE>
</HEAD>
<html:errors/>
<html:form actionfiltered="/submitLogin.do">
<TABLE border="0" cellpadding="0" cellspacing="0">
<TBODY>
<TR>
<TD></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD width="28"></TD>
<TD width="54"></TD>
<TD width="68"></TD>
<TD width="77"></TD>
<TD width="89"></TD>
<TD width="59"></TD>
</TR>
<TR>
<TD height="2"></TD>
<TD height="2"></TD>
<TD height="2"></TD>
<TD height="2"></TD>
<TD width="28" height="2"></TD>
<TD width="54" height="2"></TD>
<TD width="68" height="2"></TD>
<TD width="77" height="2"></TD>
<TD width="89" height="2"></TD>
<TD width="59" height="2"></TD>
</TR>
<TR>
<TD height="20"></TD>
<TD height="20"></TD>
<TD height="20"></TD>
<TD height="20"></TD>
<TD width="28" height="20"></TD>
<TD width="54" height="20"></TD>
<TD width="68" height="20"></TD>
<TD width="77" height="20"></TD>
<TD width="89" height="20"></TD>
<TD width="59" height="20"></TD>
</TR>
<TR>
<TD height="38"></TD>
<TD height="38"></TD>
<TD height="38"></TD>
<TD height="38"></TD>
<TD width="28" height="38"></TD>
<TD width="54" height="38"></TD>
<TD width="68" height="38"></TD>
<TD width="77" height="38"></TD>
<TD width="89" height="38"></TD>
<TD width="59" height="38"></TD>
</TR>
<TR>
<TD></TD>
<TD></TD>
<TD></TD>
<TD></TD>
<TD width="28"></TD>
<TD width="54"></TD>
<TD width="68">Name</TD>
<TD width="77"><html:text property="username"></html:text></TD>
<TD width="89"></TD>
<TD width="59"></TD>
</TR>
<TR>
<TD height="65"></TD>
<TD height="65"></TD>
<TD height="65"></TD>
<TD height="65"></TD>
<TD width="28" height="65"></TD>
<TD width="54" height="65"></TD>
<TD width="68" height="65">Password</TD>
<TD width="77" height="65"><html:password
property="password"></html:password></TD>
<TD width="89" height="65"></TD>
<TD width="59" height="65"></TD>
</TR>
<TR>
<TD height="20"></TD>
<TD height="20"></TD>
<TD height="20"></TD>
<TD height="20"></TD>
<TD width="28" height="20"></TD>
<TD width="54" height="20"></TD>
<TD width="68" height="20"></TD>
<TD width="77" height="20"></TD>
<TD width="89" height="20"></TD>
<TD width="59" height="20"></TD>
</TR>
<TR>
<TD height="31"></TD>
<TD height="31"></TD>
<TD height="31"></TD>
<TD height="31"></TD>
<TD height="31" width="28"></TD>
<TD height="31" width="54"></TD>
<TD height="31" width="68"></TD>
<TD height="31" width="77"></TD>
<TD height="31" width="89"><html:submit
value="Submit"></html:submit></TD>
<TD height="31" width="59"></TD>
</TR>
<TR>
<TD height="37"></TD>
<TD height="37"></TD>
<TD height="37"></TD>
<TD height="37"></TD>
<TD height="37" width="28"></TD>
<TD height="37" width="54"></TD>
<TD height="37" width="68"></TD>
<TD height="37" width="77"></TD>
<TD height="37" width="89"></TD>
<TD height="37" width="59"></TD>
</TR>
<TR>
<TD height="38"></TD>
<TD height="38"></TD>
<TD height="38"></TD>
<TD height="38"></TD>
<TD height="38" width="28"></TD>
<TD height="38" width="54"></TD>
<TD height="38" width="68"></TD>
<TD height="38" width="77"></TD>
<TD height="38" width="89"></TD>
<TD height="38" width="59"></TD>
</TR>
</TBODY>
</TABLE>
</html:form>
</html:html>
3.Now I have added submitLogin action in the struts-config.xml file
<action-mappings>
<action path="/submitLogin" scope="request"
type="com.ibm.dynamicform.resources.LoginAction"
name="LoginForm" validate="false" input="/index.jsp">
<forward name="success" path="/done.jsp"></forward>
</action>
4.Now the LoginAction Action class is like this
package com.ibm.dynamicform.resources;
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 org.apache.struts.validator.DynaValidatorForm;
public class LoginAction extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form, HttpServletRequest request,
HttpServletResponse response) throws Exception {
ActionForward forward=new ActionForward();
DynaValidatorForm dynaform = (DynaValidatorForm) form;
String username=(String)dynaform.get("username");
String password=(String)dynaform.get("password");
if(username.equalsIgnoreCase("")||(password.equalsIgnoreCase(""))){
System.out.println("null username");
forward=mapping.getInputForward();
}
else{
System.out.println(username+":"+password);
forward=mapping.findForward("success");
}
return forward;
}
}
5.My validation.xml looks like
<!DOCTYPE form-validation
PUBLIC "-//Apache Software Foundation//
DTD Commons Validator Rules
Configuration 1.0//EN"
"http://jakarta.apache.org/
commons/dtds/validator_1_0.dtd">
<form-validation>
<formset>
<form name="LogonForm">
<field property="username"
depends="required">
<arg0 key="prompt.username"/>
</field>
<field property="password"
depends="required">
<arg0 key="prompt.password"/>
</field>
</form>
</formset>
</form-validation>
6.My validator-rules.xml looks like
<!DOCTYPE form-validation PUBLIC
"-//Apache Software Foundation//DTD Commons
Validator Rules Configuration 1.0//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_0.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.ActionErrors,
javax.servlet.http.HttpServletRequest"
msg="errors.required">
<_javascript>
<![CDATA[
function validateRequired(form) {
var isValid = true;
var focusField = null;
var i = 0;
var fields = new Array();
oRequired = new required();
for (x in oRequired) {
var field = form[oRequired[x][0]];
if (field.type == 'text' ||
field.type == 'textarea' ||
field.type == 'file' ||
field.type == 'select-one' ||
field.type == 'radio' ||
field.type == 'password') {
var value = '';
// get field's value
if (field.type == "select-one") {
var si = field.selectedIndex;
if (si >= 0) {
value = field.options[si].value;
}
} else {
value = field.value;
}
if (trim(value).length == 0) { {
if (i == 0) {
focusField = field;
}
fields[i++] = oRequired[x][1];
isValid = false;
}
}
}
if (fields.length > 0) {
focusField.focus();
alert(fields.join('\n'));
}
return isValid;
}
// Trim whitespace from left and right sides of s.
function trim(s) {
return s.replace( /^\s*/, "" ).replace( /\s*$/, "" );
}
]]>
</_javascript>
</validator>
</global>
</form-validation>
My web app is able to handle the login actions but no error is displayed in the
index.jsp when i submit the form without username and password.
Please help me why I am getting this situation..
Also my ApplicationResources.properties looks like this
.....
# Optional header and footer for <errors/> tag.
#errors.header=<ul>
#errors.footer=</ul>
# Error messages for Validator framework validations
errors.required={0} is required.
errors.minlength={0} cannot be less than {1} characters.
errors.maxlength={0} cannot be greater than {2} characters.
errors.invalid={0} is invalid.
errors.byte={0} must be a byte.
errors.short={0} must be a short.
errors.integer={0} must be an integer.
errors.long={0} must be a long.0. errors.float={0} must be a float.
errors.double={0} must be a double.
errors.date={0} is not a date.
errors.range={0} is not in the range {1} through {2}.
errors.creditcard={0} is not a valid credit card number.
errors.email={0} is an invalid e-mail address.
#ERROR KEYS
prompt.username=Username
prompt.password=Password
NOTE:i hve used <html:errors/> in my index.jsp where i am expecting the error
to be displayed.
Warm Regards,
Leo
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