0
You Run a Servlet by deploying it on the server, which in this case is tomcat. We need to deploy the servlet in the Web Applications context.
When we talk of a Web application's context, we are referring to that Web application's root directory or path within a particular server. A special directory exists within the application hierarchy named WEB-INF. This directory contains all things related to the application that aren't in the document root of the application. It is this WEB-INF directory that is the Web application's root directory, also referred to as the context. The most important file here is web.xml, the name of the WebApp deployment descriptor.
Let us take a look at the various contents (files & folders) that will be present inside this WEB-INF directory:
1. /WEB-INF/web.xml - This is the Deployment Descriptor file
2. /WEB-INF/classes/ - This is the directory where all your java class files will be placed
3. /WEB-INF/lib/ - This is the folder where all your JAR files go.
my tomcat is installed in c:\dev\java\Jakarta-tomcat-4.0.1. This is my TOMCAT_HOME. Remember that, this path that is referred by TOMCAT_HOME might vary from PC to PC depending on the installation preferences of the user.
To Deploy the Servlet, you need to place the .class file corresponding to your servlet in the /WEB-INF/classes/ folder
What else can I help you with?
Why doesn't a servlet have a main method in it?
A servlet does not have a main method because it is designed to run within a servlet container, such as Apache Tomcat, which manages its lifecycle. Instead of a main method, servlets implement specific methods like doGet() and doPost() to handle HTTP requests and responses. The container invokes these methods in response to client requests, allowing the servlet to focus on processing web interactions rather than standalone execution.
Differniate between applet and servlet in java?
Applet: It is run on browser, i mean client side. Servlet: It is run on server, i mean server side.
How do you run a jsp file?
To run a JSP (JavaServer Pages) file, you need to have a Java web server or servlet container, such as Apache Tomcat, installed on your machine. Place your JSP file in the appropriate directory (usually in the webapps folder of Tomcat). Start the server and access the JSP file via a web browser by navigating to http://localhost:port/yourAppName/yourFile.jsp, replacing port with the server's port number (typically 8080) and yourAppName with the name of your web application. The server processes the JSP file and returns the generated HTML to the browser.
What is servlet mapping?
A Servlet Mapping is a directive in the web.xml that tells the Servlet Container which class to use when a particular Servlet is called. A Servlet is a class within your Java Web Application. Let's say you have a servlet called MyServlet in the com.example.servlet package. You would need to have a Servlet Mapping pointing the path "/MyServlet" to the "com.example.servlet.MyServlet" class. Without the servlet mapping, you would not be able to invoke your servlet because the Servlet container would not know where it is. JSPs are different - they do not need mappings like this. JSPs exist within the WebRoot of the application, so they are always available. Servlets exist in the WEB-INF\Classes directory once your application is deployed.
What is servlet and why it is used?
servlet is a small program which run on serverside,and it can not be downloaded at client side. java servlets dynamically extends the functionalities of a web server. main use is: session tracking: no of users (unique) visited u'r website. in order to use cookies..
How do you compile servlet in java using tomcat?
Tomcat is a server. It is used to deploy and run Servlets and not compile them. A Servlet is a java file and has to be compiled just like any other Java Class.
How do you run servlet on Linux?
To run a servlet on Linux, you typically need to set up a Java servlet container, such as Apache Tomcat. First, install Java Development Kit (JDK) and then download and extract Tomcat. Place your servlet code in the appropriate directory (usually webapps/yourapp/WEB-INF/classes), configure the web.xml file if needed, and start the Tomcat server using the startup.sh script in the bin directory. Access your servlet through a web browser using the appropriate URL, typically http://localhost:8080/yourapp/YourServlet.
How do you run servlets?
Servlets can be run on Web servers like weblogic or websphere or tomcat. The servlet and other components of the j2ee project need to be packaged as an EAR and then deployed on the server. Based on the deployment descriptor we can access the servlet.
What is the Apache TomCat webserver?
Apache Tomcat is a servlet container developed by the Apache Software Foundation (ASF). Tomcat implements the Java Servlet and the JavaServer Pages (JSP) specifications from Sun Microsystems, and provides a "pure Java" HTTP web server environment for Java code to run. Stephen Williamson, Server Engineer, http://www.HostMySite.com?utm_source=bb
Why doesn't a servlet have a main method in it?
A servlet does not have a main method because it is designed to run within a servlet container, such as Apache Tomcat, which manages its lifecycle. Instead of a main method, servlets implement specific methods like doGet() and doPost() to handle HTTP requests and responses. The container invokes these methods in response to client requests, allowing the servlet to focus on processing web interactions rather than standalone execution.
How to run servlet page in tomcat5.5 server?
How to run servlet page in tomcat5.5 server?"
Why no need of main in servlet?
I think you mean: why isn't there a function required in a servlet like the following? public static void main(String[] args) { } Because the main() method is what the Java VM 'boots up' into...it's the first thing the JVM executes. A servlet, however, is running inside a servlet container (e.g., Tomcat), which is running inside a JVM. *That* JVM gets started with a main() method, but unless you intend to run your servlet from the commandline, there's no explicit need for a main() method.
What is tomcat used for?
Apache Tomcat is an open-source web server and servlet container that is primarily used to run Java applications. It implements the Java Servlet and JavaServer Pages (JSP) specifications, allowing developers to serve dynamic content and manage web applications efficiently. Tomcat is commonly used in conjunction with other frameworks and technologies to build and deploy Java-based web applications. Additionally, it provides features like session management, security, and scalability, making it suitable for both small projects and large enterprise applications.
Where do servlets execute?
On the Server in which the Web Application is deployed. For Ex: Tomcat, weblogic, websphere are all some servers in which a servlet can execute
Where do you deploy the servlet files?
The Servlet file and all other components of the web/j2ee project get deployed onto a web server (Websphere, Weblogic, Tomcat etc) They are packaged into an Enterprise Archive file (EAR) and deployed on the server
When should you use jsp and servlet in your project?
JSP and servlets are used in when you are building a website that provides a server sided service, for example connecting to a database is a service. == == JSP/Servlets are java code that perform the backend operations for web pages. Such servlets run in a java container, such as JBoss or Tomcat. Where you would use these would be in a web-based environment where you wanted to run the backend on Java, as opposed to PHP, Perl, etc. As an example, eBay is run by JSP/Servlet technology. However, JSP/Servlet technology is much more complicated than scripting languages, but well worth learning.
Differniate between applet and servlet in java?
Applet: It is run on browser, i mean client side. Servlet: It is run on server, i mean server side.
