init parameters

Hi Guys,

I wrote the following code:

My web.xml looks like this:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app id="WebApp">
<display-name>Servlets</display-name>
<servlet>
<servlet-name>LoginServlet</servlet-name>
<display-name>LoginServlet</display-name>
<servlet-class>com.gss.cart.LoginServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>WelcomeServlet</servlet-name>
<display-name>WelcomeServlet</display-name>
<servlet-class>com.gss.cart.WelcomeServlet</servlet-class>
<init-param>
<param-name>JndiName</param-name>
<param-value>ds1</param-value>
</init-param>
</servlet>
<servlet>
<servlet-name>ItemsAvailable</servlet-name>
<display-name>ItemsAvailable</display-name>
<servlet-class>com.gss.cart.ItemsAvailable</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>LoginServlet</servlet-name>
<url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>WelcomeServlet</servlet-name>
<url-pattern>/WelcomeServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>ItemsAvailable</servlet-name>
<url-pattern>/ItemsAvailable</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>

My Questions are:

1). System.out.println(value); is working fine and printing the value on to the console but when I try to display the value onto the browser(in doPost() method) it's not displaying?

2). When I wrote the following code(what is now in init() method) in doPost(), it's not even printing onto the console?
value = getServletConfig().getInitParameter("JndiName");
System.out.println(value);

Can anyone tell me why?

Thanks.

Originally posted by Arjun Reddy:
System.out.println(value); is working fine and printing the value on to the console but when I try to display the value onto the browser(in doPost() method) it's not displaying?

I see no place in your code where you are writing the value to the response.

Sorry, but please bear with me. This should be right right?
out.println(value); but the thing is nothing seems to be printing onto the browser.

Thanks.
[ July 11, 2008: Message edited by: Arjun Reddy ]

Change this

out.println("<h2>value</h2>");

to

out.println("<h2>"+value+"</h2>");

This may fix the problem....

Originally posted by Arjun Reddy:
Sorry, but please bear with me. This should be right right?
out.println(value); but the thing is nothing seems to be printing onto the browser.

That code appears nowhere in your servlet.

What actually shows up on the browser? If the browser screen is blank, perhaps the servlet buffer has not actually been written.

Try closing the output stream at the end of the doPost method.

Bill