Migrating CGI Scripts to Java Servlets

Introduction

The rapid acceptance of Java for client and server applications has created an immediate need to move existing CGI scripts to Java servlets.  Java servlets are server-side components that can extend the functionality of a Java-enabled web server.  Currently, there are a number of enterprise web applications that provide server-side functionality with CGI scripts.  Java servlets provide a number of enhancements to the current CGI architecture.

In this article, you will learn what servlets are, how you can integrate them into your web application and the benefits of using servlets.  An overview of the servlet API is given along with servlet examples for accessing CGI environment variables and processing HTML form data.

• Read the complete article on-line at the Java Developer's Journal web site.

Source Code

Individual Files

• Listing 1
  • TestWebServlet.java
• Listing 2
  • EchoEnvironmentServlet.java
• Listing 3
  • MagazineForm.html
• Listing 4
  • EchoMagazineServlet.java

Above Files in Compressed Format

• Windows 95/NT
  • cgi2servlet.zip
• UNIX
  • cgi2servlet.tar.gz

Additional Servlet Articles

• Java Servlet Articles

Related Books Recommended by Chád Darby

• Java Servlet Books