SpringMVCdata
flow
 In a Spring MVC application, the flow of data is managed by three main components:
DispatcherServlet, Handler Mapping, and View Resolver. Here’s a simplified
explanation of how each one works in order:1. DispatcherServlet:This is the main
entry point for any request in a Spring MVC application.Think of it as the “front
desk.”When a user makes a request (like clicking a link or submitting a form), the
DispatcherServlet receives it first. It’s responsible for coordinating the entire request
and response process.2. Handler Mapping: Once the DispatcherServlet receives the
request, it needs to know which part of the application (called a controller) should
handle it.This is where Handler Mapping comes in. Handler Mapping looks at the
URL and other details of the request to find the right controller to process it. It’s like a
“directory” that tells the DispatcherServlet where to send the request next.3.
Controller and Processing: After finding the right controller, the DispatcherServlet
forwards the request to it.The controller processes the request, often by using some
data or performing actions like calculations or database calls. Once done, it returns
a result, typically the name of a view (a webpage template) where the response data
should be shown.4.View Resolver:The DispatcherServlet now takes the view name
from the controller and consults the View Resolver.The View Resolver helps it find
the actual template (like an HTML or .jsp file) that should be used to display the
data. It’s like a “map” that translates the view name to a specific file location.5.
Response to User: Finally, the view file is rendered with the data, and the
DispatcherServlet sends this completed response back to the user’s browser.So, the
DispatcherServlet directs the request, Handler Mapping finds the right controller,
and View Resolver locates the template to display the data to the user

Presentation DataFlow for java webapp.pptx

  • 1.
    SpringMVCdata flow  In aSpring MVC application, the flow of data is managed by three main components: DispatcherServlet, Handler Mapping, and View Resolver. Here’s a simplified explanation of how each one works in order:1. DispatcherServlet:This is the main entry point for any request in a Spring MVC application.Think of it as the “front desk.”When a user makes a request (like clicking a link or submitting a form), the DispatcherServlet receives it first. It’s responsible for coordinating the entire request and response process.2. Handler Mapping: Once the DispatcherServlet receives the request, it needs to know which part of the application (called a controller) should handle it.This is where Handler Mapping comes in. Handler Mapping looks at the URL and other details of the request to find the right controller to process it. It’s like a “directory” that tells the DispatcherServlet where to send the request next.3. Controller and Processing: After finding the right controller, the DispatcherServlet forwards the request to it.The controller processes the request, often by using some data or performing actions like calculations or database calls. Once done, it returns a result, typically the name of a view (a webpage template) where the response data should be shown.4.View Resolver:The DispatcherServlet now takes the view name from the controller and consults the View Resolver.The View Resolver helps it find the actual template (like an HTML or .jsp file) that should be used to display the data. It’s like a “map” that translates the view name to a specific file location.5. Response to User: Finally, the view file is rendered with the data, and the DispatcherServlet sends this completed response back to the user’s browser.So, the DispatcherServlet directs the request, Handler Mapping finds the right controller, and View Resolver locates the template to display the data to the user