Overview

There are many advantages of Java Servlets over traditional CGI applications.

Advantages of Java Servlets

Some of the advantages are as follows::

• Portability
• Powerful
• Efficient
• Safe
• Integration
• Extensibility
• Inexpensive

Portability

Servlets are highly portable across operating systems and server platforms. We can develop a servlet on a Windows machine running the Tomcat server or any other web server and later we can deploy that servlet effortlessly on any other operating system like a Linux machine running on any other web or Application server. Servlets are Write Once, Run Anywhere (WORA).

 

Powerful

Servlets are powerful when compared to CGI programs. Servlets can talk directly to the web server while CGI programs can’t. Servlets can share data with each other, make database connection pools, etc. Servlets can maintain the session by using the session tracking mechanism which helps to maintain information from request to request.

Efficient

Servlets are highly efficient. When the servlet gets loaded in the server, it remains in the server’s memory as a single object instance. Servlets handle requests using multiple concurrent threads, but only a single copy of the servlet class. Multiple concurrent requests are handled by separate threads so servlets are highly efficient and scalable.

Safe

Servlets inherit the strong type safety features from the Java language. Java’s automatic garbage collection and lack of pointers mean that servlets are generally safe from memory management problems. Servlets can easily handle errors and abnormal conditions using Java’s exception-handling mechanism. If any exception occurs then it will throw an exception.