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1. Spring MVC file upload 1.1 multi file upload Multi file upload is similar to single file upload Steps: Form: <form method="post" enctype="multipart/form-data"> <!--Provide multiple input，Multiple uploaded files can be selected--> <input type="file" name="images" /> <input type="file" name="images" /> &lt ...

Adapter mode Definition: convert an interface to another interface that the customer wants. The adapter pattern allows some classes with incompatible interfaces to work together. It mainly solves that in the software system, some "existing objects" are often put into the new environment, and the interface required by the new en ...

         First, declare that MVC and three-tier architecture are two different concepts. But it is to realize the principle of single function and realize the decoupling of modules. The two of them are not in conflict, but can coexist.          The two architecture ...

Mode and devil (action separate version) 1. Basic operation drill Download Fantasy Skybox FREE and build your own game scene Write a simple summary of the use of game objects The game objects we use are written in resources. Because the downloaded resources are free and have not been studied in depth, the use of game objects is basically in ...

1. Write before 1. Overview Previously we talked about finding the corresponding mapper by request, that is, finding the corresponding method, so how to call this method. Because different methods of receiving requests have different ways, the simplest is that the method name is different, so how to call. Here we use the adapter mode in desig ...

2. File upload 2.1 multi file upload form <form action="${pageContext.request.contextPath}/file/upload2.action" method="post" enctype="multipart/form-data"> Select file: <input type="file" name="images" /> <br/> Select file: <input type="file" name="images" /> <br/> Select file: <input ...

1. IOC(Inversion of Control) Review the MVC three-tier architecture The user's operation on the interface (view layer) is actually going to the operation Controller layer to call the service layer, and the service completes the methods and operations defined in the Dao layer by creating (New) the relevant entity class objects of the Dao lay ...

catalogue preface middleware Action filter summary preface This article shows how to set up two ways of IP whitelist verification in ASP.NET Core applications. You can use the following 2 methods: Middleware for checking the remote IP address of each request. MVC action filter that checks the remote IP address of a request for a s ...

1. Result jump method ModelAndView Set the ModelAndView object, and jump to the specified page according to the name of the view and the view parser Page: {view parser prefix} + viewName + {view parser suffix} <!-- view resolver --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalRe ...

1. Interceptor 1.1 interceptor configuration Interceptors in spring MVC are used to intercept the execution of controller methods Interceptors in spring MVC need to implement HandlerInterceptor Specific operation The interceptor of spring MVC must be configured in the configuration file of spring MVC (springMVC.xml): a. Intercept all p ...