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Create a new dynamic Web Project with the name ApplicationClient.

Right click on WebContent and create the following login.jsp:

Code Block

title	login.jsp
borderStyle	solid

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<form method="post" action="passCredentials.jsp">
<h2 align="center"><font color="blue">Welcome to Apache Geronimo</font></h2>
<h2 align="center"><font color="blue">Enter your credentials</font></h2>
Enter your Username
<input type="text" name="username" size=20><br>
Enter your Password
<input type="password" name="password" size=20><br>
<input type="submit" value="Login">
<a href="http://localhost:8080/ApplicationClient/register.jsp">NewUser</a>
</form>
</body>
</html>

This form is the login page for our application. Once the user enters his/her credentials, these are passed to another jsp passCredentials.jsp (checkout the action in the form tag) to verify the authenticity of user credentials. In case the user is new he has to go through the registration process. This statement <a href="http://localhost:8080/ApplicationClient/register.jsp">NewUser</a> is used to route the user to registration page.

Code Block

title	passCredentials.jsp
borderStyle	solid

<%@ page import="java.util.Properties,javax.naming.Context,javax.naming.InitialContext,statelessejb.RegisterBeanRemote" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body bgcolor="white">
<%!boolean i; %>
<%
Properties prop=new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory");
	prop.put("java.naming.provider.url", "ejbd://localhost:4201");
Context context = new InitialContext(prop);
RegisterBeanRemote myejb=(RegisterBeanRemote)context.lookup("RegisterBeanRemote");
String s= request.getParameter("username");
String s1= request.getParameter("password");
i=myejb.verify(s,s1);
%>
<% 
	if (i==true){ 
%>
<jsp:forward page="/resources.jsp"></jsp:forward>
<% 
	} else {
%>
	<jsp:forward page="/login.jsp"></jsp:forward>
<% 
}
%>
</body>
</html>

<%!boolean i; %> is a declaration for a global variable. The other part is a scriptlet which does a JNDI lookup to the remote interface. Later the user credentials are passed to verify function. In case the credentials are correct user is routed to the resources page else he is redirected to login page to re-login.

Tip

title	Why is the lookup name RegisterBeanRemote??

This will be explained in the deploy an run section

Code Block

title	resources.jsp
borderStyle	solid

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<h3><font color="blue">Welcome to Apache Geronimo Resource Center</font></h3> 
Apache Geronimo Home Page
<a href="http://geronimo.apache.org">Apache Geronimo Home page</a><br>
Join our mailing list
<a href="http://geronimo.apache.org/mailing-lists.html">Apache Geronimo Mailing List</a><br>
Come and Contribute to Apache Geronimo V2.1 Documentation
<a href="http://cwiki.apache.org/GMOxDOC22/">Apache Geronimo V2.1 Documentation</a>
</body>
</html>

This is the final page of the application which displays the various resources.

Code Block

title	register.jsp
borderStyle	solid

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Welcome to Apache Geronimo</title>
</head>
<body bgcolor="white">
<script type="text/javascript">
function valForm()
{
	if (this.document.form1.username.value=="" || this.document.form1.username.value=="")
	{
		alert("You cannot leave the field blank");
		this.document.form1.firstname.focus();
		return false;
	}
	else
	{
		return true;
	}
}
</script>
<h2 align="center"><font color="blue">Welcome to Apache Geronimo User Registration</font></h2>
<form method="post" name="form1" action="passVariables.jsp" onSubmit=" return valForm();">
FirstName
<INPUT type="text" name="firstname" SIZE=20><br>
LastName
<INPUT type="text" name="lastname" SIZE=20 ><br>
Sex<br>
<input type="radio" name="sex" value="male"> Male
<br>
<input type="radio" name="sex" value="female"> Female
<br>
Select a UserName<br>
<input type="text" name="username" size=20><br>
Select a Password<br>
<input type="password" name="password"  size=20><br>
<br>
<input type="submit" value="Submit">
</form>
</body>
</html>

This page is the registration page. Once th user fills up the form and press Submit a valform() function is called which validates the field username and password. In case any of them is empty an alert is send which suggests empty fields in the form. If all is fine passVariables.jsp is called.

Code Block

title	passVariables.jsp
borderStyle	solid

<%@ page import="java.util.Properties,javax.naming.Context,javax.naming.InitialContext,statelessejb.RegisterBeanRemote" %>

<html>
<head>

<meta http-equiv="Refresh" content="5;URL=http://localhost:8080/ApplicationClient/login.jsp">
<title>Welcome to Apache Geronimo</title>
</head>

<%
Properties prop=new Properties();
prop.put(Context.INITIAL_CONTEXT_FACTORY, "org.apache.openejb.client.RemoteInitialContextFactory");
	prop.put("java.naming.provider.url", "ejbd://localhost:4201");
Context context = new InitialContext(prop);
RegisterBeanRemote myejb=(RegisterBeanRemote)context.lookup("RegisterBeanRemote");
String s= request.getParameter("firstname");
String s1= request.getParameter("lastname");
String s2= request.getParameter("sex");
String s3= request.getParameter("username");
String s4= request.getParameter("password");
myejb.register(s,s1,s2,s3,s4);
%>

<h3 align="center"><font color="blue">Thank you for registering with Apache Geronimo</font></h3>
<h3 align="center"><font color="blue">Redirecting to Login Page</font></h3>
</html>

In this page the fields are retrieved from register.jsp and the register function in the bean class is called to populate the database.
The code <meta http-equiv="Refresh" content="5;URL=http://localhost:8080/ApplicationClient/login.jsp^{Image Removed}"> suggests to wait for 5 seconds and then move to login.jsp

Code Block

title	index.jsp
borderStyle	solid

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<body>
<jsp:forward page="/login.jsp" />
</body>
</html>

...

In the EJB Project. Under META-INF, edit openejb-jar.xml and add the following

Code Block

title	datasource dependency
borderStyle	solid

<sys:dependencies>
            <sys:dependency>
                <sys:groupId>console.dbpool</sys:groupId>
                <sys:artifactId>jdbc%2Fuserds<artifactId>jdbc_userds</sys:artifactId>
            </sys:dependency>        
</sys:dependencies>

Finally the openejb-jar.xml will look like this

Code Block

title	openejb-jar.xml
borderStyle	solid

<?xml version="1.0" encoding="UTF-8"?>
<openejb-jar xmlns="http://www.openejb.org/xml/ns/openejb-jar-2.2" 
xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.2"
xmlns:pkgen="http://www.openejb.org/xml/ns/pkgen-2.0" 
xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.2" 
xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
  <sys:environment>
    <sys:moduleId>
      <sys:groupId>default</sys:groupId>
      <sys:artifactId>StatelessSessionEJB</sys:artifactId>
      <sys:version>1.0</sys:version>
      <sys:type>car</sys:type>
    </sys:moduleId>
    <sys:dependencies>
            <sys:dependency>
                <sys:groupId>console.dbpool</sys:groupId>
                <sys:artifactId>jdbc%2Fuserds<artifactId>jdbc_userds</sys:artifactId>
            </sys:dependency>        
</sys:dependencies>
  </sys:environment>
  <enterprise-beans/>
</openejb-jar>

Info

title	Where did the above dependencies come from??

To make the datasource visible to EJB we need to add a dependency to the EJB deployment plan that is openejb-jar.xml. The above element can be obtained automatically from Geronimo Database Pool wizard. Select usage against the database pool jdbc/userds

In the WEB Project. Under WEB-INF, Edit geronimo-web.xml and add the following

Code Block

title	EJB dependency
borderStyle	solid

<sys:dependencies>
       <sys:dependency>
            <sys:groupId>default</sys:groupId>
      		<sys:artifactId>StatelessSessionEJB</sys:artifactId>
      		<sys:version>1.0</sys:version>
      		<sys:type>car</sys:type>
       </sys:dependency>        
</sys:dependencies>

Finally the geronimo-web.xml will look like this

Code Block

title	geronimo-web.xml
borderStyle	solid

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://geronimo.apache.org/xml/ns/j2ee/web-1.2" 
xmlns:nam="http://geronimo.apache.org/xml/ns/naming-1.2" 
xmlns:sec="http://geronimo.apache.org/xml/ns/security-1.2"
xmlns:sys="http://geronimo.apache.org/xml/ns/deployment-1.2">
  <sys:environment>
    <sys:moduleId>
      <sys:groupId>default</sys:groupId>
      <sys:artifactId>ApplicationClient</sys:artifactId>
      <sys:version>1.0</sys:version>
      <sys:type>car</sys:type>
    </sys:moduleId>
    <sys:dependencies>
       <sys:dependency>
            <sys:groupId>default</sys:groupId>
      		<sys:artifactId>StatelessSessionEJB</sys:artifactId>
      		<sys:version>1.0</sys:version>
      		<sys:type>car</sys:type>
       </sys:dependency>        
</sys:dependencies>
  </sys:environment>
  <context-root>/ApplicationClient</context-root>
</web-app>

Right click on the ApplicationClient Project and select properties. Select Java Build Path->Projects. Click Add and add Stateless Session EJB. This is required for the compilation of the Client code.

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