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good tutorial for backend java?

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I'm hoping to find a good tutorial for using Java for web backend development.  The kind that includes code that can be modified, etc. and other hands on would be best. Hopefully would include some database connection technologies.  I have an ocajp7 and have used Java for desktop and android development, including Swing and JavaFX.  Any suggestions?
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Hi Guillermo,

I would recommend you to go with the Spring framework and Spring Boot for developing RESTFull web services.
These links were helpfull for me in the past:

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Welcome to the Ranch.

RESTful web services are but one one part of backend development. Web GUIs using servlets and JSPs are another (although JSP loses ground to SPA frameworks that use JavaScript in the browser).

The technologies to look into would be

Servlets (for backends that are web-accessible, FAQ)

JSP (for creating web GUIs in conjunction with servlets, FAQ)

JAX-RS (for creating RESTful web services; it is based on servlets, FAQ

JPA (for database connectivity)

Common implementations would be the Tomcat server (for servlets and JSP, FAQ), Jersey (the reference implementation of JAX-RS, it can run in Tomcat) and EclipseLink (for JPA, along with an SQL DB of your choice like MySql or PostgreSql).

You're probably best off for looking for tutorials for these individual components, rather than one that covers all or most of it.
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