B4J Question Web app

R

Roycefer

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• Nov 28, 2015

• #2

What host server are you planning on using? B4J apps will run on any computer that has installed on it a Java 8-compatible JVM. Running your server is usually as simple as running

B4X:

cd path/to/jar/file
java -jar MyServer.jar

from the command line or in the terminal emulator. Have you looked at Erel's tutorials?

http://b4x.com/android/forum/threads/webapp-web-apps-overview.39811/
http://b4x.com/android/forum/threads/webapp-hello-world-web-app.39808/
http://b4x.com/android/forum/threads/server-building-web-servers-with-b4j.37172/

 

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imbault

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• Nov 28, 2015

• #3

Sorry to interfer @Roycefer , but maybe for @besoft, it's not that simple.
I had the same issue with a customer, who wanted finally, a war file, to integrate in an application server like Tomcat, in that case, B4J will not do the job, and maybe @Erel has a clever view, in order to use B4J in those cases... (high level production IT environment )

Patrick

 

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besoft

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• Nov 28, 2015

• #4

Server is Tomcat. Therefore, I ask. User requirements are Java and Oracle

What should I do in this case?

 

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imbault

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• Nov 28, 2015

• #5

besoft said:

Server is Tomcat. Therefore, I ask. User requirements are Java and Oracle

What should I do in this case?

Click to expand...

I really don't know, upon my experience, I had to re-develop everything using Eclipse, and Hibernate (for data layer), adding a data abstraction layer.

I think @Erel should answer such a question. Because it's a real question, where we have to think if B4J is just a prototype help, or a tiny alternative solution, or if it's more than this, in a real production world, where middle or big sizes companies don't care about embedded jetty solutions (or standalone tiny solutions), and where Apache Tomcat or websphere are used.

Patrick

 

Last edited: Nov 28, 2015

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Erel

B4X founder

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• Nov 29, 2015

• #6

B4J creates very powerful standalone web servers.

You cannot embed the web server inside a Tomcat server. You can run both on the same physical server and configure Tomcat to act as a proxy (based on the path) and delegate the requests to the B4J server. There can be many web servers running on the same computer.

Note that B4J server performance is similar to Tomcat performance.

 

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besoft

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• Nov 29, 2015

• #7

Thanks for the answers

I ask the user for more information. The application would work in the local network with about 60 users. It is mostly for reading data in a few points the entry or just a correction data.

In the network is also the Oracle server. If correct thinking could run on a single computer B4J server and application, and then from other computers on the network access to applications?

 

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Erel

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• Nov 29, 2015

• #8

besoft said:

If correct thinking could run on a single computer B4J server and application, and then from other computers on the network access to applications?

Click to expand...

Yes.

Some numbers about the server performance: https://www.b4x.com/android/forum/threads/server-performance-measures.37502/#content

 

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besoft

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• Nov 29, 2015

• #9

It has a computer running the server and any application specific settings, you can access other applications? How to connect computers to the server? Directly or via a VPN?

I apologize for such basic questions. from a read on the Internet I did not give the whole picture. In this area, I have very little experience.

Thanks

 

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Erel

B4X founder

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• Nov 29, 2015

• #10

I recommend you to start by running this example: https://www.b4x.com/android/forum/threads/server-building-web-servers-with-b4j.37172/#content

This is a http server. Other computers will communicate with the server using the browser or with custom apps (based on HttpUtils2).

 

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besoft

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• Nov 29, 2015

• #11

Thank you very much.
I got all the answers for now. I did a quick test. It works great.
Now it follows the development of applications and will probably have a few questions.

 

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