I would like to create a spring boot application where navigation menus would be saved in MySql database and retrieve them from DB and displayed on a web page after user is logged in and based on his/her application roles. These menus should be on any page the user is allowed to access. I'm new to spring boot framework and would like to ask any good man/women to point me to a very good tutorial to accomplish these tasks. If spring boot has a different approach to create the requested dynamic navigation menus l'm eager to learn that approach.
I'm greatful in advance.
Many thanks
Related
Like Jhipster generated app has out of box user management, I want to create a company/organization concept in JHipster so that every data is associated with its own organization/company
What is the best approach to handle it?
Have someone done it before?
First, for the database you should look at multitenancy in Hibernate and precisely at the discriminator column approach described in
https://docs.jboss.org/hibernate/orm/current/userguide/html_single/Hibernate_User_Guide.html#multitenacy and https://www.baeldung.com/hibernate-5-multitenancy
Then, for the REST layer, you should consider implementing a Spring MVC interceptor to map authenticated user to tenant id. For debugging purpose, you should also consider setting the tenant id in logback MDC so that you can see it in logs.
Finally, you got to think at the admin part, administrators should probably be able to access all data from all tenants. If admins should not be allowed to do so, you should consider encrypting data with a key per tenant.
There's a blueprint but it's not working for current JHipster 7 and team is looking for contributors. However, there are examples generated that you could look at for inspiration, https://sonalake.com/latest/multi-tenant-applications-with-jhipster/
I have implemented spring boot starter cache using #EnableCaching annotation in main method and #Cacheable(value="allproductCache") in the service layer.
I have one doubt, is this cache is user level or application level? let suppose i add some new product and that all product list with new product should be visible to UI in productlist whoever is logged in to that application.
So for do that what i am thinking is to clear the server cached when anyone is adding a product so a fresh getallproduct request will hit and get the updated product list but i wanted to make sure that it is application level if i clear the cache using cacheManager.getCache(name).clear(); should able to clear the server cache and can be reflect to all user who are logged into the application.
We are starting out with Spring Boot, and looking for best practices
in implementing a large application. If you can provide links to any large/mid scale open source application
implemented using Spring Boot, that would be helpful.
Also we did research code generated by "JHipster" (jhipster.github.io/) project, which
definitely helps generating lot of boiler plate code like user management, transaction management, REST Services/ AngularJS based application.
The only problem is "JHipster" is AngularJS based. But in our case we
would like to go with "Thymeleaf" based UI.
If you can provide a link to framework/sample application similar to "JHipster",
but based on "Thymeleaf" based UI, that will also be very helpful.
Thanks
JHipster also supports Thymeleaf: by default it generates an AngularJS front-end, and this is its main goal, but you can also use Thymeleaf if you don't want a single Web page application.
If you have a look at the error pages, for example, they are done with Thymeleaf (as the 404 page can't be in the single Web page application, for obvious reasons)
I have a project that has the following requeriments:
Allow users to login in the same Web Application using different schemas following a criteria;
Dynamically route the datasource against a rule - for example, users in Company A should access schema A, users in Company B should access schema B;
The business logic which authenticates the user`s should be in a business component - EJB, because new applications can be added and this logic must be outside the Web Application.
I read about using Dynamic Data Source Routing. The CustomerContextHolder has a field which is ThreadLocal. Is ThreadLocal a guarantee that the user A will access the schema A following my criteria? Will the code be thread safe?
The way i understand is that you need multi tenency for spring along with datasource.
Probably you have have a look to spring extension which might help
https://github.com/mariofts/spring-multitenancy
I have completed setting up Spring Security using the roo shell as a guide and it has generated several views, amongst them is the login.jspx. I am trying to create a custom login form using Vaadin's Visual editor and Eclipse, how can i redirect the user to my login form and then use Spring Security to validate and authenticate the user as well as start a session management? I am really trying to avoid JSP since the rest of my application is using Vaadin as its Core Front-End
vaadin has some limitations on the login form.
Have a look at: https://vaadin.com/book/-/page/components.loginform.html so you will notice what I mean.
You can also have a look at the vaadin wiki (https://vaadin.com/wiki). There are several articles on your topic. You may find your solution there :)
kind regards
.zip