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Formatting the Errors

Rajkumar balakrishnan

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posted 16 years ago

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Hi friends,
I just now decided to migrate from JSP to Struts and i started learning my own. I just use the code in the book and it works perfectly. It just displays some set of text boxes for user Registration and when user click Submit it just tell "Reg successful...".. My question is when i load the page the error message that which i give in ApplicationResource is displayed as default. And when i enter some inputs and leaving some mandatory fields..It just shows that corresponding error message and other vanished. My will is, By default no error message is displayed in <html:errors/> tag...How can i achieve that... I not intend to ask such question but i left with no choice because i am a newbie to Struts... Hope ranchers will help me...

Here is my LoginForm.jsp

<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html" %>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-logic" prefix="logic" %>
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/html4/loose.dtd">
 
<html>
<head>
<title>User Registration</title>
</head>
<body>
<h1>User Registration</h1>
<html:errors/>
<table>
<html:form action="login">
<tr>
<td>
<bean:message key="login.firstName" />*
</td>
<td>
<html:text property="firstName" />
</td>
</tr>
<td>
<bean:message key="login.lastName" />*
</td>
<td>
<html:text property="lastName" />
</td>
<tr>
<td>
<bean:message key="login.userName" />*
</td>
<td>
<html:text property="userName" />
</td>
</tr>
<tr>
<td>
<bean:message key="login.email" />*
</td>
<td>
<html:text property="email" />
</td>
</tr>
<tr>
<td>
<bean:message key="login.phone" />
</td>
<td>
<html:text property="phone" />
</td>
</tr>
<tr>
<td>
<bean:message key="login.fax" />
</td>
<td>
<html:text property="fax" />
</td>
</tr>
<tr>
<td>
<bean:message key="login.password" />*
</td>
<td>
<html :-P	 assword property="password" />
</td>
</tr>
<tr>
<td>
<bean:message key="login.password" />*
</td>
<td>
<html :-P	 assword property="passwordCheck" />
</td>
</tr>
<tr>
<td>
<html:submit />
</td>
<td>
<html:cancel />
</td>
</tr>
</html:form>
</table>
</body>
</html>

Here is my ActionForm.java

package com.myapp.struts;
 
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
 
public class NewStrutsActionForm extends org.apache.struts.action.ActionForm {
    
    private String firstName;
    private String lastName;
    private String userName;
    private String password;
    private String passwordCheck;
    private String email;
    private String phone;
    private String fax;
    private boolean registered;
    
  //All setters and getters here.....
    
    public void setFirstName(String string) {
        firstName = string;
    }
    public NewStrutsActionForm() {
        super();
        // TODO Auto-generated constructor stub
    }
    
    public void reset(ActionMapping mapping,HttpServletRequest request) {
    firstName=null;
    lastName=null;
    userName=null;
    password=null;
    passwordCheck=null;
    email=null;
    phone=null;
    fax=null;
    registered=false;
    }
    
    public ActionErrors validate(ActionMapping mapping, HttpServletRequest request) {
        ActionErrors errors = new ActionErrors();
        if (getFirstName() == null || getFirstName().length() < 1) {
            errors.add("firstName", new ActionMessage("errors.firstName.required"));}
            // TODO: add 'error.name.required' key to your resources
        if (getLastName() == null || getLastName().length() < 1) {
            errors.add("lastName", new ActionMessage("errors.lastName.required"));}
        if (getUserName() == null || getUserName().length() < 1) {
            errors.add("userName", new ActionMessage("errors.userName.required"));}
        if (getPassword() == null || getPassword().length() < 1) {
            errors.add("password", new ActionMessage("errors.password.required"));}
        if (getPasswordCheck() == null || getPasswordCheck().length() < 1) {
            errors.add("passwordCheck", new ActionMessage("errors.passwordCheck.required"));}
        if (getPhone() == null || getPhone().length() < 1) {
            errors.add("phone", new ActionMessage("errors.phone.required"));}
        if (getFax() == null || getFax().length() < 1) {
            errors.add("fax", new ActionMessage("errors.fax.required"));}
        if (getEmail() == null || getEmail().length() < 1) {
            errors.add("email", new ActionMessage("errors.email.required"));}
 
        return errors;
    }
}

And StrutsAction.java

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Sagar Rohankar

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posted 16 years ago

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My question is when i load the page the error message that which i give in ApplicationResource is displayed as default.

Post your ApplicatioResource.propertise file .

When you first load the page, no error message should be seen.

plus, post struts-config file or action tag of your ActionClass .

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Rajkumar balakrishnan

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posted 16 years ago

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ApplicationResource.properties file:

errors.header=Fields marked with * are mandatory!
errors.prefix=
errors.suffix=
errors.footer=**
errors.invalid={0} is invalid.
errors.maxlength={0} can not be greater than {1} characters.
errors.minlength={0} can not be less than {1} characters.
errors.range={0} is not in the range {1} through {2}.
errors.required={0} is required.
errors.byte={0} must be an byte.
errors.date={0} is not a date.
errors.double={0} must be an double.
errors.float={0} must be an float.
errors.integer={0} must be an integer.
errors.long={0} must be an long.
errors.short={0} must be an short.
errors.creditcard={0} is not a valid credit card number.
errors.email={0} is an invalid e-mail address.
errors.cancel=Operation cancelled.
errors.detail={0}
errors.general=The process did not complete. Details should follow.
errors.token=Request could not be completed. Operation is not in sequence.
welcome.title=Struts Application
welcome.heading=Struts Applications in Netbeans!
welcome.message=It's easy to create Struts applications with NetBeans.
login.firstName=firstName
login.lastName=lastName
login.userName=userName
login.email=email
login.phone=phone
login.fax=fax
login.password=password
login.passwordCheck=passwordCheck
errors.firstName.required=Enter ur First name!
errors.lastName.required=Enter ur Last name!
errors.userName.required=Enter a User name!
errors.email.required=Enter email-id!
errors.phone.required=Enter phone number!
errors.password.required=Enter password!
errors.passwordCheck.required=Enter Confirm-Password!

struts-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
 
<!DOCTYPE struts-config PUBLIC
          "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
          "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>
    <form-beans>
        <form-bean name="NewStrutsActionForm" type="com.myapp.struts.NewStrutsActionForm"/>
    
    </form-beans>
    
    <global-exceptions>
    
    </global-exceptions>
 
    <global-forwards>
        <forward name="welcome"  path="/Welcome.do"/>
    </global-forwards>
 
    <action-mappings>
        <action input="/LoginForm.jsp" name="NewStrutsActionForm" path="/login" scope="session" type="com.myapp.struts.NewStrutsAction">
            <forward name="success" path="/loginSuccessful.jsp"/>
        </action>
        <action path="/Welcome" forward="/welcomeStruts.jsp"/>
    </action-mappings>
    
    <controller processorClass="org.apache.struts.tiles.TilesRequestProcessor"/>
 
    <message-resources parameter="com/myapp/struts/ApplicationResource"/>    
    
    <plug-in className="org.apache.struts.tiles.TilesPlugin" >
        <set-property property="definitions-config" value="/WEB-INF/tiles-defs.xml" />      
        <set-property property="moduleAware" value="true" />
    </plug-in>
    <plug-in className="org.apache.struts.validator.ValidatorPlugIn">
        <set-property
            property="pathnames"
            value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
    </plug-in>
  
</struts-config>

Here is the file that you ask... I do no processing with the form data i just validate them and if all fields are valid then a success page is displayed.. Thanks in advance

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Sagar Rohankar

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posted 16 years ago

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Everything looks fine, may be I`m not able to get your question , fully !

If by default , on login page you are seeing those errors, then one thing must solve this :

make the scope to "request", from previous "session".

Try this,

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Rajkumar balakrishnan

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posted 16 years ago

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God, When i change it from session to request "Servlet file not available" error is shown in browser... What happens? I use Sun Java App Server.. Help me

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Sagar Rohankar

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posted 16 years ago

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will you please elaborate the error or exception , may be you can paste it here !

[LEARNING bLOG] | [Freelance Web Designer] | [and "Rohan" is part of my surname]

Rajkumar balakrishnan

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Posts: 445

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posted 16 years ago

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The error was resolved and after changing from session to scope... i won't get the desired output.. By default when the page is loaded the <html:errors> show all the errors.. but i need them to be displayed after validation....
[ July 23, 2008: Message edited by: Rajkumar balakrishnan ]

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