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12. Upload and download File upload is one of the most common functions in project development. Spring MVC can well support file upload, but MultipartResolver is not installed in the context of spring MVC by default, so it cannot handle file upload by default. If you want to use spring's file upload function, you need to configure MultipartReso ...

6. Jump mode 6.1 forwarding and redirection via spring MVC - no view parser required Before testing, you need to comment out the view parser @Controller public class ResultSpringMVC { @RequestMapping("/rsm/t1") public String test1(){ //forward return "/index.jsp"; } @RequestMapping("/rsm/t2") public String test2(){ ...

5. Controller and RestFul 5.1 controller The complex controller provides the behavior of accessing the application program, which is usually realized by interface definition or annotation definition. The controller is responsible for parsing the user's request and transforming it into a model. In Spring MVC, a controller class can contain mult ...

Interceptor Interceptor configuration Interceptors in spring MVC are used to intercept the execution of controller methods. Interceptors in spring MVC need to implement HandlerInterceptor. package com.atguigu.springmvc.interceptor; import org.springframework.web.servlet.HandlerInterceptor; import org.springframework.web.servlet.ModelAn ...

Spring MVC -- using Controller to return JSON data 1. Use Jackson Jackson: at present, the famous json parsing tool class library Dependencies imported using Jackson: <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> ...

Spring MVC requests and responses 1, Response of spring MVC The data response methods of spring MVC are as follows: Page Jump Return string directlyReturn via ModelAndView object Write back data Return string directlyReturns an object or collection 1. Page Jump 1.1. Directly return string In the code for getting ...

Spring MVC overview Spring MVC is a module in the spring framework and one of the cores of spring. It is often used for web development. Its bottom layer is Servlet, so it is also called Spring web mvc. Because the internal architecture pattern is mvc architecture, it is called Spring MVC Spring MVC is a container that manages the controlle ...

File upload is one of the most common functions in project development. Spring MVC can well support file upload, but MultipartResolver is not installed in the context of spring MVC by default, so it cannot handle file upload by default. If you want to use spring's file upload function, you need to configure MultipartResolver in the context. Fr ...

Introduction to spring MVC Official documents: https://docs.spring.io/spring-framework/docs/current/reference/html/web.html#mvc First try spring MVC Three major components that must be configured to use spring MVC: Process mapper, process adapter, view parser schematic diagram Operation steps Import Java Web and Spring dependenc ...

1.@RequestParam       1. It is used to receive the parameters passed by the method before the parameters passed by the method (it is an annotation that accepts common parameters in spring MVC)       2. Attribute: name in value request parameter required: whether this parameter is provided in the reques ...