Web Server of NetWeaver

[Former Member]

Hi,

I often see words 'SAP J2EE Server'. What's it? Is it a web server like tomcat / weblogic? Or it just uses tomcat to host web applications?

Thanks,

Ray

[prashil · Accepted solution]

Basically, it is the SAP’s application server implementation of the Java™ EE 5 standard. The focus of this release is to enable the development and adoption of the Java EE 5 technologies.

With this edition, application developers benefit from the simplified application architecture. Java EE 5 lets the developer focus on implementing the business scenario of the application and shifts more work to the containers providing a set of intelligent defaults for the most common cases. Thus, the application developer configures the fundamental behavior of the application, and deals with details in exceptional cases only

[Former Member · Accepted solution]

Hi Prashil,

Thanks for reply.

Hope I am not getting you wrong:

So you mean, SAP is not using any existing web server like tomcat, weblogic, websphere etc to host applications like EP and other ear. Right? I am refering to NetWeaver 04, focusing on EP / KMC.

Does this mean, SAP implements its own web server, and its own class loader mechanism?

Thanks,

Ray

[prashil · Accepted solution]

Hi Ray,

SAP has developed its own WAS according to their needs and compatibility to SAP system.

The portal is an application which are predeployed on the WAS.

I haven't work much on other servers, so i cannot assure you that its class loader mechanism resembles to any other system.

Regards,

Prashil

[Former Member · Accepted solution]

Thanks Prashil. Points awarded:)

Thanks,

Ray

[Vlado · Accepted solution]

Hi Ray,

I'd like to add some clarifications. SAP Web AS 6.40 (part of SAP NetWeaver 04) is more than a web server, it's a fully compliant J2EE application server and also provides additional features, like integration with SAP backend systems and others. It is not using any existing web server. For more information please check the <a href="http://help.sap.com/saphelp_nw04/helpdata/en/0d/a3bb3eff62847ae10000000a114084/frameset.htm">documentation</a> on help.sap.com. It also contains information on the Web AS classloading mechanism.

And <a href="http://help.sap.com/saphelp_nw04/helpdata/en/0f/25fc3f8fc2c542e10000000a1550b0/frameset.htm">here</a> you can find more information on EP and KMC.

Finally, regarding Java EE 5 @ SAP, you could start from <a href="https://www.sdn.sap.comhttp://www.sdn.sap.comhttp://www.sdn.sap.com/irj/sdn/javaee5">this</a> page as well as visit the dedicated SDN Wiki <a href="https://wiki.sdn.sap.com/wiki/display/Java/JavaEE5+Development">space</a>.

Hope it helps!

-Vladimir