Developing Web Applications with Eclipse and Tomcat

1

• Developing Web Applications with Eclipse and
  Tomcat
• Prepared by Nadya Kuzmina

2
Components 1

• (Of course) Eclipse
• Java SDK
• Tomcat
• Eclipse Tomcat launcher plug-in by Sysdeo

3
Installing Components

• Download and install the latest version of Java
  SDK (e.g. from http//java.sun.com/javase/download
  s/index.jsp)
• Set up JAVA_HOME environment variable to point to
  the installation directory of the Java SDK.
• Download and install Tomcat from
  http//tomcat.apache.org/download-55.cgi
• Test your Tomcat installation by going to
  ltCATALINA_HOMEgt/bin directory and starting Tomcat
  with startup.bat.
• Next, open localhost8080 in your browser.
• You will see the greetings page from Tomcat.
• Download the Eclipse Tomcat launcher plug-in by
  Sysdeo from http//www.sysdeo.com/eclipse/tomcatpl
  ugin
• Unzip the plugin into Eclipse/plug-ins directory.
• Start Eclipse with java -jar startup.jar -clean
  once after the plugin installation.
• Tomcats icons should be present on the toolbar
  in Eclipse.

4
Configure Eclipse to Work with Tomcat 1

• Set the Java SDK that you installed in the
  previous step to be the default JRE for Eclipse
• Window-gtPreferences Java-gtInstalled JREs
• Set the Tomcat plug-in to work with Tomcat
• Window-gtPreferences Tomcat
• Set Tomcat Home to point to your installation of
  Tomcat.

5
Test your Configuration 1

• Follow the instructions in 1.

6
Web Archive Organization 2

• .html, .jsp, etc.
• /WEB-INF/web.xml - The Web Application Deployment
  Descriptor for your application. This is an XML
  file describing the servlets and other components
  that make up your application, along with any
  initialization parameters and container-managed
  security constraints that you want the server to
  enforce for you.
• /WEB-INF/classes/ - This directory contains any
  Java class files (and associated resources)
  required for your application, including both
  servlet and non-servlet classes, that are not
  combined into JAR files. If your classes are
  organized into Java packages, you must reflect
  this in the directory hierarchy under
  /WEB-INF/classes/. For example, a Java class
  named com.mycompany.mypackage. MyServlet would
  need to be stored in a file named
  /WEB-INF/classes/com/mycompany/mypackage/MyServlet
  .class.
• /WEB-INF/lib/ - This directory contains JAR files
  that contain Java class files (and associated
  resources) required for your application, such as
  third party class libraries or JDBC drivers.

7
References

• Geoffrey Duck Using Eclipse as a development
  environment with Jakarta Tomcat,
  http//www-128.ibm.com/developerworks/library/os-e
  ctom/
• Apache Tomcat 5.5 Application Developers Guide,
  http//tomcat.apache.org/tomcat-5.5-doc/appdev/dep
  loyment.html