You need to package your web application as a .war file to deploy it directly to Apache Tomcat. WAR stands for web archive. A different server might require a different format, for instance a glassfish server will need a .jar file whereas a websphere application server will require an .ear.

Installing and verifying a standalone Apache Tomcat

We will use a stand-alone tomcat for this example. Just download latest tomcat (.zip) version, unzip into a folder.

We will create a simple JSP that prints "Hello World" in eclipse, deploy it and run it on the integrated tomcat. 

Prerequesites

Configure apache tomcat with eclipse as mentioned in configuring-apache-tomcat-with-eclipse and start and stop tomcat server from the servers view of eclipse.

We will create a simple servlet that prints "Hello World" in eclipse, deploy it and run it on the integrated tomcat. 

Prerequesites

Configure apache tomcat with eclipse as mentioned in configuring-apache-tomcat-with-eclipse and start and stop tomcat server from the servers view of eclipse.

Let us do a simple hands on excercise followed by some questions to understand exceptions better. For theory and concetps of exceptions in Java. you can refer to the note introduction-to-exceptions-in-java. 

Exercise

Create a class MyClass and create three methods myMethod1(), Method2() and Method3().

Invoke Method2() from Method1() and Method3() from Method2().

We will create a simple JSP form and then submit the form with action as another jsp and retrieve the form parameters which are received as request parameters in the second jsp file.

Create a 'Dynamic Web Project'.

• Select 'File > New > Dynamic Web Project' or  'File > New > Project > Web > Dynamic Web Project'.