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Can we have more than one application context in Spring?

Posted on October 15, 2022 by Author

Table of Contents

  • 1 Can we have more than one application context in Spring?
  • 2 How application context is loaded in Spring MVC?
  • 3 Can we have multiple dispatcher servlet in Spring MVC?
  • 4 How do I change the context root of a dynamic Web project?
  • 5 How many application context will be there for an application?
  • 6 Can we have multiple dispatcher servlets?

Can we have more than one application context in Spring?

We can have multiple application contexts that share a parent-child relationship. A context hierarchy allows multiple child contexts to share beans which reside in the parent context. Each child context can override configuration inherited from the parent context.

How do I change the context path of a web application?

1.1 Right click on the project, select Properties , Web Project Settings , update the context root here. 1.2 Remove your web app from the server and add it back. The context root should be updated. 1.3 If step 2 is failing, delete the server, create a new server and add back the web app.

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How application context is loaded in Spring MVC?

ApplicationContext (i.e. Root Application Context) In spring mvc for every web application applicationContext. xml file used as the root context configuration. Spring loads this file and creates the ApplicationContext for whole application.

How do you find the Spring context of a web application?

To get a reference to the ApplicationContext in a Spring application, it can easily be achieved by implementing the ApplicationContextAware interface. Spring will automatically detect this interface and inject a reference to the ApplicationContext: view rawMyBeanImpl. java hosted by GitHub.

Can we have multiple dispatcher servlet in Spring MVC?

A web application can define any number of DispatcherServlet instances. Each servlet will operate in its own namespace, loading its own application context with mappings, handlers, etc. Only the root application context as loaded by ContextLoaderListener, if any, will be shared.

What is BeanFactory in spring?

1. The BeanFactory. The BeanFactory is the actual container which instantiates, configures, and manages a number of beans. These beans typically collaborate with one another, and thus have dependencies between themselves.

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How do I change the context root of a dynamic Web project?

To change the context root of a web application that is already available in the Eclipse workspace, simply right-click on the web project and call the “Properties” action from the context menu.

What is context root in Spring MVC?

Simply put, the context path is a name with which a web application is accessed. It is the root of the application. By default, Spring Boot serves the content on the root context path (“/”). So, any Boot application with default configuration can be accessed as: http://localhost:8080/

How many application context will be there for an application?

With that instanciations, you will get 2 totally independent application contexts. One bean declared in first will not be found in the other. Here you can retrieve from context1 only beans declared in it, but from context2 you will retrieve beans from context2 and context1 .

How many types of context are there in Spring?

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As you are using Spring boot, there is only one context by default: ApplicationContext .

Can we have multiple dispatcher servlets?

You can have as many DispatcherServlets as you want. Basically what you need to do is duplicate the configuration and give the servlet a different name (else it will overwrite the previous one), and have some separate configuration classes (or xml files) for it.

Where is DispatcherServlet defined in Spring MVC?

In the case of Spring MVC, DispatcherServlet is the front controller. The DispatcherServlet’s job is to send the request on to a Spring MVC controller. A controller is a Spring component that processes the request.

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