i was wondering which server-software (tomcat, ...) is recommended to run a webservice written in java. are there actually any alternatives to tomcat?
thanks!
Each JavaEE server (Glassfish, JBoss, etc) supports web-services. In fact, Tomcat does not provide out-of-the-box support for them.
I, personally, would go for Tomcat + a JAX-WS provider like CXF.
We generally work with Tomcat and JBoss, using Axis for the web service implementation. Works for us.
Related
I know that Tomcat is a web server but why it is not an application server?
Any server needs to follow some specification. What is that spec?
Is it possible for apache to make the tomcat application server?
Also I have read in a blog that the tomcat do not have some lib to act as an application server. What are those libs?
Thanks
I've heard once the following explanation I tend to agree with:
There is a spec of JEE (Java enterprise edition).
Formally you can think about it as a bunch of pdf-s describing the behavior of various technologies that comprise the JEE stack (for example: JMS, EJB, JPA, JPA, JSF, CDI and so on and so forth) as well as deployment models (EARs for example).
Implementors of Application servers have to implement all those technologies and offer interfaces that can be used by the application developers. So teams that stand behind WildFly (former JBoss), Geronimo, WebSphere, WebLogic and so on have read these specs and implemented everything in there.
Now, Tomcat didn't do that, they've only concentrated on (primarily) Servlets/JSPs. These are web technologies, so Tomcat can't be considered as an Application server that implements the whole JEE stack.
In general Tomcat (as well as Jetty, incidentally) should be more lightweight than full JEE compliant Application servers, it should start-up faster and it memory footprint should be smaller. So Tomcat/Jetty call themselves web servers.
I understand that this answer can be considered as speculation, but for me it makes a lot of sense.
Bellow is my perceive:
know that Tomcat is a web server but why it is not an application server?
Here, Application Server is specially for Java EE Server，Java EE is a huge specific collections for Enterprice Application Development，So Application Server should implement most specifics of these, while Tomcat(or Jetty) is only a Web Server(More accurately，Servlet Container)，they only implements the specific about Web(such as Servlet Spec(JSR340), JSP(JSR245)). Therefore，Application Server is stronger than Web Server，but Web Server is more lightweight and enough to satisfy most web applications.
Any server needs to follow some specification. What is that spec?
Of course，it depends on that your Server want to provide what services(functions)，these specifications can view here.
Is it possible for apache to make the tomcat application server?
I don't think apache will make tomcat to be an application server. Now, there are some popular Java EE Server: Jboss，WebLogic, etc. Not all enterprices need a heavyweight Application Server, on the contrary, most only need a lightweight Web Server。
Also I have read in a blog that the tomcat do not have some lib to act as an application server. What are those libs?
Tomcat only need care the specs about Web，and implements them.
Hope for your help.
Can I deploy a Spring java application on all (or at least most) of JavaEE servers ? like Weblogic, JBoss, Webshpere, Tomcat, Jettty etc.
And is there is preferred Java EE server for Spring ?
Yes you can. And no - there isn´t. Errata: you can take a look at the SpringSource dm Server. Be aware that spring is not a java EE implementation. Read this post here.
Yes, you can deploy it on any server, and you can use it on standalone applications and even on mobile applications. It is in no way restricted to web deployment. It is not even restricted to java, there is Spring.NET and even a Python version. However, java and web servers are a common if not the most common use for it.
Currently recommended web server by VMWare/Pivotal (current owner of Spring) is VFabric tcServer, which is a Tomcat fork containing some extra tools and functionality. But server in itself does not matter, Spring is container agnostic.
There is no preferred EE server. VFabric tcServer is a servlet container, not an EE server. It contains "enterprise capabilities" instead, but that's not the same thing. As said however, you can use whichever EE server you want.
If I use Glassfish and only need jersey for jax-rs and grizzly for servlet/jsp, will glassfish load all other Java EE components I don't need and take more up more resources than just running jersey/tomcat or will glassfish just load jersey/grizzly and will use almost the same resources? I have tried running starting default glassfish and default tomcat, glassfish takes much more ram.
Is there any reason not to run jersey with tomcat? maybe because the integration is done better by Glassfish?
There are lots of people who use Jersey with Tomcat. Tomcat is a servlet container only but will not interfere with other Java EE technologies that you choose to support through other means (e.g. Jersey). You may have to manage some of the initialization of the frameworks, etc. that other full-J2EE containers like Glassfish already provide, but it shouldn't be too painful.
You can use the 'web profile' to help minimize the download, initial memory and start-up time.
The most recent web profile is http://dlc.sun.com.edgesuite.net/glassfish/3.1.2.2/release/glassfish-3.1.2.2-web.zip
The start-up time is between Tomcat and the GlassFish 'full' profile.
The web profile includes an integrated implementation of Jersey.
It seems that tomcat is a web application server and EAR cannot be deployed in it. Can it be updated to deploy EAR files. If not what could be the alternate server which is easy to configure and deploy?
In Short - NO. Tomcat is not a Java EE compliant server, but just a web server.
Use JBoss/GlassFish/Geronimo, there are a lot more, just google for it :)
Best alternative is Glassfish Application Server, alongwith Netbeans which will be best for practice purpose. Although there are a long list of such server and also that Apache also have one such server.
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I don't know about Glassfish, but JBoss uses an embedded Tomcat so you might get comfortable with it somewhat easier.
I am gonna implement web service in Java but before implementation I will decide which framework I should use. Simplicity and running on JBoss 4.2.3 Platform are the requirements.
What is your suggestions?
Instead of using an additional technology stack component, why not use the #WebService annotation introduced in EJB3. JBoss 4.2.3 supports EJB3
Two examples
Using EJB3 Web Services guarantees that you web services will run on any Java EE compliant server without any modifications to the server.
Since JBoss provides JavaEE features, you can simply take a look at JAX-WS, annotate your EJBs, and let JBoss handle everything from there.
Otherwise you can look at Apache CXF and for JBoss + CXF see here
Axis2 on Tomcat 6
JAX-WS on Tomcat 6
Quick, Fast and Easy