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catalogue 1. Basic concepts 1.1 spring MVC core: dispatcher servlet (central scheduler) 2. Create the first spring MVC project 2.1 create a web maven template 2.2 editing web XML file, configuring the central scheduler Version 2.2.1 is too low, replace with a higher version 2.2.2 declare and register the DispatcherServlet, the core objec ...

Spring MVC processes http requests through the handler mapping and handler adapter. When a request passes through the dispatcher servlet, the dispatcher servlet will select an appropriate handler mapping and handler adapter to process the request. By customizing the processor mapper and processor adapter, we can learn how spring MVC handles a ...

Spring MVC User Guide 1, How spring MVC works 1.1 principle and process of spring MVC Picture address: 22. Web MVC framework The user initiates a request and the request is intercepted into the dispatcher servlet (FrontController), which is the core of Spring,Handle the URL of the request with HandlerMapping and find the processor ...

Spring MVC User Guide 1, How spring MVC works 1.1 principle and process of spring MVC Picture address: 22. Web MVC framework The user initiates a request and the request is intercepted into the dispatcher servlet (FrontController), which is the core of Spring, Handle the URL of the request with HandlerMapping and find the processor Handler ...

Crazy God says spring MVC video link: Station B video The link of the official account of the gods. official account 1. What is spring MVC 1.1 review MVC 1.1.1 what is MVC MVC is the abbreviation of model, view and controller. It is a software design specification.It is a method to organize code by separating business logic, data and displa ...

Communication mode between microservices?? There are two main modes of communication between services: 1. Based on Http application layer protocol characteristic 1. Use http rest and json for data exchange 2. Low efficiency, but low coupling (low coupling means that if different services are developed using different technical f ...

659 login case database creation web project construction login page creation Use Servlet+MVC+Mybatis+Jsp to complete user login ① Create t in mysql_ User user information table (id,name,pwd) ② Use idea to create a new web project named 01 spring IOC mybatis login ③ Import relevant jar packages in the web project (spring IOC jar+Mybatis jar ...

1, Introduction to interceptor 1. Interceptor definition The Interceptor in spring MVC is similar to the Filter in Servlet. It is mainly used to intercept user requests and make corresponding processing. For example, the Interceptor can verify permissions and judge whether users log in To use the interceptor in spring MVC, you need to de ...

Typically, in Spring MVC, we write a controller class to handle requests from clients. Then, the controller calls the business class to handle business-related tasks, and then redirects the client to the logical view name, which is parsed by Spring's scheduler Servlet to render the results or output. This completes the round trip of a typical r ...

Main knowledge points The servlet API gets the request parameters using request getParameter("xxx")In spring MVC, you only need to declare the parameter with the corresponding name in the processing method to automatically match the parameter passed in by the request and perform the corresponding type conversion (the servlet API also ...