Submodule as2‐demo spring boot

This is a stub project that just shows how integration of as2-lib with Spring Boot could work. It doesn't do anything real.

Run the project with Maven:

mvn spring-boot:run

If everything went smooth, the application is reachable locally at http://localhost:8081

Elements

• The class As2SandboxApplication contains the main Spring Boot application.
  • By implementing the ServletContextListener interface it allows for a clean shutdown via the method contextDestroyed. It is suggested you take this over in your application
• The main AS2 logic happens in class ServletConfig
  • The constant AS2ServletXMLSession contains the AS2 configuration to be used
    • The content of this session is read from the file config/config.xml
    • This configuration file contains the certificate references, the partnership references and the processors to be used. See the sub page for details
    • This session is initialized once globally. If your AS2 settings are more dynamic, you need to adopt your approach
    • The AS2 session is NOT to be confused with an HTTP session - it's something completely different
  • The class registers a Servlet at path /as2 that is able to receive the main AS2 messages
    • It will take the configuration from the above mentioned AS2 session
    • When receiving a message, it will call the Java modules (not Java 11 modules - just AS2 handler modules) defined in the configuration file
    • This Servlet and the respective handler class need to be used in your application
  • The class also registers a second Servlet at path /as2mdn that is able to receive asynchronous AS2 MDNs
    • If your scenario only uses synchronous MDNs you don't need that servlet

Sending

Sending of messages is totally independent of Spring Boot. See sending AS2 messages for details.

Receiving

Receiving is done via the default Java Servlet interface, at the path /as2 (when following the example application). The main handling of received messages happens via the handlers defined in the configuration file. By default incoming files are written via class MessageFileModule to a folder on disk. If you want to do something else, you have to implement your own handler class.