bean:message key="" problem

[Raghava Chary]

How to find out,In <bean:message key=" "/> ,Key is present or not

....
My problem is,

if message is present, i have to display that one
other wise default one

can any body suggest me

[Bharat Kasodariya]

<logic:present name="message">

<bean:write name="message" />

</logic:present>

[Sandy Chatterjee]

<logic:present name="message">

<bean:write name="message" />

</logic:present>

@Bharat Kasodariya
Could you please explain what exactly the above code prints.

[Sandy Chatterjee]

.

[Vidya Gupta]

The logic:present tag checks whether it contains any message or not.. And then if it contains the message then the bean:write will display the message..

[Sandy Chatterjee]

<logic:present name="message">

<bean:write name="message" />

</logic:present>

@Vidya

As per my knowledge the 'name' attribute of the <logic:present> tag is the name of any bean in a particular scope.
So, according to the code 'message' is a bean which is stored in some scope.
Is the 'message' bean the message resource bundle bean.
If so then how can we check a particular message is present or not.
Please explain.

[Sandy Chatterjee]

Still waiting for reply from Bharat Kasodariya and Vidya Gupta

[Vidya Gupta]

Sorry i was little bit busy and unable to visit the site..

<logic:present name="anyname" scope="">
  Name = <bean:write name="employeeform" property="emp_name" /><br />
  Salary = <bean:write name="employeeform" property="emp_sal" />

 </logic:present>

As per my knowledge, here in logic:present tag the attribute "name" defines a scripting variable to be used as the variable being tested for existence.
Here we are testing that particular variable is present in the scope or not...? And then if it is present in a scope it will enter into the body of the tag and then bean:write attribute displays the values of the properties in the form.

[Shankar Tanikella]

Hi Sandy,
Have you looked into this messagesPresent tag provided by struts? I feel this is what you are looking for. Google for couple of examples as well.

[Raghava Chary]

it is not working

[Shankar Tanikella]

Hi Chary,
Did you set the "message" attribute to true?

<logic:messagesPresent property="myproperties.configured.resources.key" message="true">
	// Display your message
</logic:messagesPresent>
<logic:messagesNotPresentproperty="myproperties.configured.resources.key" message="true">
	// Display your default message
</logic:messagesNotPresent>

What have you tried?

[Sandy Chatterjee]

Thanks Shankar and Vidya for your reply.

<logic:messagesPresent property="myproperties.configured.resources.key" message="true">  
    // Display your message  
</logic:messagesPresent>  
<logic:messagesNotPresentproperty="myproperties.configured.resources.key" message="true">  
    // Display your default message  
</logic:messagesNotPresent>

I knew about <logic:messages> tag. But the thing which was bothering me was the post by Bharat Kasodariya

<logic:present name="message"> 

<bean:write name="message" /> 

</logic:present>

He has used something called message. That was really a new thing for me to learn.
Also Vidya wanted to explain which was not exactly clear to me.
I just wanted to know about the above code.

@Vidya

<logic:present name="anyname" scope="">  
  Name = <bean:write name="employeeform" property="emp_name" />
 
  Salary = <bean:write name="employeeform" property="emp_sal" />  
  
 </logic:present>  

As per my knowledge, here in logic:present tag the attribute "name" defines a scripting variable to be used as the variable being tested for existence.
Here we are testing that particular variable is present in the scope or not...? And then if it is present in a scope it will enter into the body of the tag and then bean:write attribute displays the values of the properties in the form.

I understood what you want to mean but what Raghava Chary asked was that he wanted to check a value is present or not from the message ResourceBundle. Where is the Message here. Is that 'anyname'?

[Shankar Tanikella]

As mentioned here, Logic present tag would not look for resource bundle. So the above two solutions should not work.

[Sandy Chatterjee]

Thanks for your reply. I knew it was wrong but I was confused when it was supported by a second user.
Anyways tell me one thing

<logic:messagesPresent property="myproperties.configured.resources.key" message="true">  
    // Display your message  
</logic:messagesPresent>  
<logic:messagesNotPresent property="myproperties.configured.resources.key" message="true">  
    // Display your default message  
</logic:messagesNotPresent> 

In the above code is 'myproperties.configured.resources.key' a key in the Resource Bundle?
Because I don't think so.
It has to be initialized in the Action class' execute() method by the following way:

ActionErrors errors = new ActionErrors();
errors.add("myproperties.configured.resources.key",new ActionMessage("error.name.required"));

where 'error.name.required' is defined in Resource Bundle.

Correct me if I am wrong as the guy who has posted this question is being misguided by wrong answers.

Regards,
Sandy