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JBoss Seam : Stitching JSF and EJB3
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temp:
This is a directory used by the AutoDeployer to store files temporarily.
webapps:
This directory may be considered as a main
directory; in which, all deployed web
applications are put up including necessary
files such as class file, xml file, html file, jar
file, etc. These files are put up restrictedly
according to the deployment directory
structure.
work:
This folder is automatically generated by
Tomcat, where Tomcat places intermediate
files (such as compiled JSP files) during its
work. You will not be able to execute JSP
pages if you delete this directory while Tomcat
is running.
Running a Servlet on the Tomcat Server
Now, lets see how a web application is run on the Tomcat server taking an example of
servlet.
Once you have installed the Tomcat then do
the following steps:
1 Set all three paths (such as JDK path,
classpath, and Java_Home path) as:
set path =%path% C:\Program
Files\Java\jdk1.6.0\bin;
set classpath =%CLASSPATH%
C:\Tomcat6.0\lib\ servlet-api.jar;
set JAVA_HOME=C:\Program
Files\Java\jdk1.6.0; |
2 Create a servlet class as HelloWorld.java
and compile it to make a class file of it.
import java.io.*; |
|
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet{
public void doGet(HttpServletRequest
request, HttpServletResponse response)
throws ServletException,IOException{
response.setContentType(“text/html”);
PrintWriter pw = response.getWriter();
pw.println(“<html>”);
pw.println(“<head><title>Hello World
</title></title>”);
pw.println(“<body>”);
pw.println(“<h1>Hello World</h1>”);
pw.println(“</body></html>”);
}
} |
3 Create an xml descriptor file as web.xml.
<?xml version=”1.0" encoding=”ISO-8859-
1"?>
<!—<!DOCTYPE web-app
PUBLIC “-//Sun Microsystems, Inc.//DTD
Web Application 2.3//EN”
“http://java.sun.com/dtd/webapp_
2_3.dtd”> —>
<web-app>
<servlet>
<servlet-name>Hello</servlet-name>
<servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>/HelloWorld</url-pattern>
</servlet-mapping>
</web-app> |
4 Make a Web-application directory structure
under the webapps directory shown as |
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Dec 2007 | Java Jazz Up | 16 |
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