what is difference between controller and rest controller in spring?
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1. The @Controller is a common annotation that is used to mark a class as Spring MVC Controller while @RestController is a special controller used in RESTFul web services and the equivalent of @Controller + @ResponseBody. ... Spring boot really makes it easy to develop REST APIs with spring.
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Restful Web Services is a stateless client-server architecture where web services are resources and can be identified by their URIs. REST Client applications can use HTTP GET/POST methods to invoke Restful web services. ... When compared to SOAP web services, these are lightweight and doesn't follow any standard.
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In classical MVC, a controller is just a strategy of the View to interact with the Model. In fact, sometimes a Controller isn't even necessary. In MVVM you don't need it, as you can have different ViewModels for the same View if you need different behaviours.
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Servlet is html in java whereas JSP is java in html. Servlets run faster compared to JSP. ... JSP is a webpage scripting language that can generate dynamic content while Servlets are Java programs that are already compiled which also creates dynamic web content. In MVC, jsp acts as a view and servlet acts as a controller.
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ASP.NET Core supports creating RESTful services, also known as web APIs, using C#. To handle requests, a web API uses controllers. Controllers in a web API are classes that derive from ControllerBase . This article shows how to use controllers for handling web API requests.
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In request scope, a bean is defined to an HTTP request whereas in session scope, it is scoped to an HTTP session. So for an instance, if the bean scope is request and, a user makes more than one request for a web page in his user session, then on every request a new bean would be created.
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The major difference is that in Struts1. x the request directly goes to the servlet, whereas in Struts2. x the request and response traval though the stack of interceptor or filter. The regular logic can be placed in Filter classes and developer can concentrate on the Business Logic.
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['@Controller.', '@RequestMapping.', '@PathVariable.', '@RequestParam.', '@ModelAttribute.', '@RequestBody and @ResponseBody.', '@RequestHeader and @ResponseHeader.']
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['Change your route method to "GET"', 'In your controller method signature: Change request class to Request.']
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url : The url at which this request will be sent. Its value should match with the value attribute of @RequestMapping annotation on Spring controller or with the url-mapping of servlet created to handle this request in web. xml file. dataType : The format in which this request will send its parameters (or form data).
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Difference between Interceptor and Filter in Spring MVC. ... As I understood from docs, Interceptor is run between requests. On the other hand Filter is run before rendering view, but after Controller rendered response.
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DispatcherServlet as the Heart of Spring MVC mapping an HTTP request to a certain processing method. parsing of HTTP request data and headers into data transfer objects (DTOs) or domain objects. model-view-controller interaction. generation of responses from DTOs, domain objects, etc.
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While the traditional MVC controller relies on the View technology, the RESTful web service controller simply returns the object and the object data is written directly to the HTTP response as JSON/XML. For a detailed description of creating RESTful web services using the Spring framework, click here.
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Spring MVC exposes a utility class called ModelMap which implicitly extends a LinkedHashMap. In order to pass data from controller to JSP, all you have to do is add a ModelMap argument to your controller method and then populate it inside your method body using the generic addAttribute() method.
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As nouns the difference between controller and handler is that controller is one who controls something while handler is (literally) one who handles something (especially manually) or someone.
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REST is really an architectural style used when designing an API on a server. HttpServlets can be a method of implementing a RESTful web service. REST describes a style where HTTP verbs like GET/POST/DELETE/etc. are used in a predictable way to interact with resources on a server.
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REST stands for Representational State Transfer. It is an architectural concept for building inter-operable light weight web services which helps to access and manipulate the web resources identified though URI (Uniform Resource Identifier).