What is the difference between Tomcat JBoss and Glassfish

Question

I am starting to look into Enterprise Java and the book I am following mentions that it will use JBoss  Netbeans ships with Glassfish  I have used Tomcat in the past   What are the differences between these three programs

User · Answer

Tomcat is merely an HTTP server and Java servlet container. JBoss and GlassFish are full-blown Java EE application servers, including an EJB container and all the other features of that stack. On the other hand, Tomcat has a lighter memory footprint (~60-70 MB), while those Java EE servers weigh in at hundreds of megs. Tomcat is very popular for simple web applications, or applications using frameworks such as Spring that do not require a full Java EE server. Administration of a Tomcat server is arguably easier, as there are fewer moving parts.

However, for applications that do require a full Java EE stack (or at least more pieces that could easily be bolted-on to Tomcat)... JBoss and GlassFish are two of the most popular open source offerings (the third one is Apache Geronimo, upon which the free version of IBM WebSphere is built). JBoss has a larger and deeper user community, and a more mature codebase. However, JBoss lags significantly behind GlassFish in implementing the current Java EE specs. Also, for those who prefer a GUI-based admin system... GlassFish's admin console is extremely slick, whereas most administration in JBoss is done with a command-line and text editor. GlassFish comes straight from Sun/Oracle, with all the advantages that can offer. JBoss is NOT under the control of Sun/Oracle, with all the advantages THAT can offer.

User · Answer

You should use GlassFish for Java EE enterprise applications  Some things to consider      A web Server means  Handling HTTP requests  usually from   browsers        A Servlet Container  e g  Tomcat  means  It can handle   servlets  amp  JSP       An Application Server  e g  GlassFish  means   It can manage   Java EE applications  usually both servlet JSP and EJBs       Tomcat - is run by Apache community - Open source and has two flavors     Tomcat - Web profile - lightweight which is only servlet container and does not support Java EE features like EJB  JMS etc  Tomcat EE - This is a certified Java EE container  this supports all Java EE technologies     No commercial support available  only community support   JBoss - Run by RedHat  This is a full-stack support for JavaEE and it is a certified Java EE container   This includes Tomcat as web container internally  This also has two flavors    Community version called Application Server  AS  - this will have only community support  Enterprise Application Server  EAP  - For this  you can have a subscription-based license  It s based on the number of Cores you have on your servers      Glassfish - Run by Oracle  This is also a full stack certified Java EE Container  This has its own web container  not Tomcat    This comes from Oracle itself  so all new specs will be tested and implemented with Glassfish first  So  always it would support the latest spec  I am not aware of its support models

User · Answer

Apache tomcat is just an only serverlet container it does not support for Enterprise Java application JEE   JBoss and Glassfish are supporting for JEE application but Glassfish much heavy than JBOSS server    Reference Slide

User · Answer

Both JBoss and Tomcat are Java servlet application servers  but JBoss is a whole lot more  The substantial difference between the two is that JBoss provides a full Java Enterprise Edition  Java EE  stack  including Enterprise JavaBeans and many other technologies that are useful for developers working on enterprise Java applications    Tomcat is much more limited  One way to think of it is that JBoss is a Java EE stack that includes a servlet container and web server  whereas Tomcat  for the most part  is a servlet container and web server

User · Answer

Tomcat is just a servlet container  i e  it implements only the servlets and JSP specification  Glassfish and JBoss are full Java EE servers  including stuff like EJB  JMS        with Glassfish being the reference implementation of the latest Java EE 6 stack  but JBoss in 2010 was not fully supporting it yet

User · Answer

jboss and glassfish include a servlet container like tomcat   however the two application servers  jboss and glassfish  also provide a bean container  and a few other things aswell I imagine

User · Answer

It seems a bit discouraging to use Tomcat when you read these answers  However what most fail to mention is that you can get to identical or almost identical use cases with tomcat but that requires you to add the libraries needed  through Maven or whatever include system you use    I have been running tomcat with JPA  EJBs with very small configuration efforts

User · Answer

JBoss and Glassfish are basically full Java EE Application Server whereas Tomcat is only a Servlet container  The main difference between JBoss  Glassfish but also WebSphere  WebLogic and so on respect to Tomcat but also Jetty  was in the functionality that an full app server offer  When you had a full stack Java EE app server you can benefit of all the implementation of the vendor of your choice  and you can benefit of EJB  JTA  CDI JAVA EE 6    JPA  JSF  JSP Servlet of course and so on  With Tomcat on the other hands you can benefit only of JSP Servlet  However to day with advanced Framework such as Spring and Guice  many of the main advantage of using an a full stack application server can be mitigate  and with the assumption of a one of this framework manly with Spring Ecosystem  you can benefit of many sub project that in the my work experience let me to left the use of a full stack app server in favour of lightweight app server like tomcat

[java] What is the difference between Tomcat, JBoss and Glassfish?

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